How to solve this equation and check it. a - 2.5 = 4.5?

Answers

Answer 1

Answer:

Step-by-step explanation:

a - 2.5 = 4.5

     2.5 = 2.5

a = 7.0 or 7

7.0 - 2.5 = 4.5

4.5 = 4.5


Related Questions

Help plz!!!!! I need help

Answers

Answer: J and K

Step-by-step explanation:

[tex]\sqrt{20}[/tex] is about [tex]4.472135[/tex]

Answer:

J and K

Step-by-step explanation:

√20=4.47

4.47 is almost in between J and K in the number line.

Hence, it's J and K.

A school newspaper took a survey of 100 students. The results of the survey showed that 43 students are
fans of the Buffalo Bills, 27 students are fans of the New York Jets, and 48 students do not like either
team. How many of the students surveyed are fans of both th

Answers

we need the rest of the question :)

PLEASE HELP AGAIN, SORRY I SUCK AT MATH.

Answers

Answer:

C. 24 degrees

Step-by-step explanation:

All triangle must be 180 degrees in total. So you have to add all the known degrees together to find the missing degree.

120+36=156

Then subtract the sum of the known angles from 180 to find the degree of the unknown angle

180-156=24

Answer: C

Step-by-step explanation:

I'll explain why.

The sum of the angles in a triangle must be equal to 180º. We already know 2 of the 3 angles, therefore, we can make an equation to find x.

The sum of the angles (x+36+120) must be equal to 180 (=180)

x+36+120=180

Combine like terms

x+156=180

Subtract 156 to isolate x

x=180-156

x=24

If you have a cubic polynomial of the form y = ax^3 + bx^2 + cx + d and lets say it passes through the points (2,28), (-1, -5), (4, 220), and (-2, -20) what would the coefficients a, b, c, and d equal? So confused, I'd greatly appreciate help! Thank you!

Answers

Step-by-step explanation:

Step 1:  Solve using the first point

(2, 28)

[tex]28 = a(2)^3 + b(2)^2 + c(2) + d[/tex]

[tex]28 = 8a + 4b + 2c + d[/tex]

Step 2:  Solve using the second point

(-1, -5)

[tex]-5 = a(-1)^3 + b(-1)^2 + c(-1) + d[/tex]

[tex]-5 = -a + b - c + d[/tex]

Step 3:  Solve using the third point

(4, 220)

[tex]220 = a(4)^3 + b(4)^2 + c(4) + d[/tex]

[tex]220 = 64a + 16b + 4c + d[/tex]

Step 4:  Solve using the fourth point

(-2, -20)

[tex]-20 = a(-2)^3 + b(-2)^2 + c(-2) + d[/tex]

[tex]-20 = -8a + 4b - 2c + d[/tex]

Step 5:  Combine the first and fourth equations

[tex]28 - 20 = 8a - 8a + 4b + 4b + 2c - 2c + d + d[/tex]

[tex]8 = 8b + 2d[/tex]

[tex]8 - 8b = 8b - 8b + 2d[/tex]

[tex](8 -8b)/2 = 2d/2[/tex]

[tex]4 - 4b = d[/tex]

Step 6:  Solve for c in the second equation

[tex]-5 + 5 = -a + b - c + d + 5[/tex]

[tex]0 + c = -a + b - c + c + d + 5[/tex]

[tex]c = -a + b + d + 5[/tex]

Step 7:  Substitute d with the stuff we got in step 5

[tex]c = -a + b + (4 - 4b) + 5[/tex]

[tex]c = -a + b + 4 - 4b + 5[/tex]

[tex]c = -a - 3b + 9[/tex]

Step 8:  Substitute d and c into the first equation

[tex]28 = 8a + 4b + 2(-a - 3b + 9) + (4 - 4b)[/tex]

[tex]28 = 8a + 4b - 2a - 6b + 18 + 4 - 4b[/tex]

[tex]28 - 22 = 6a - 6b + 22 - 22[/tex]

[tex]6 / 6 = (6a - 6b) / 6[/tex]

[tex]1 + b = a - b + b[/tex]

[tex]1 + b = a[/tex]

Step 9:  Substitute a, b, and c into the third equation

[tex]220 = 64(1 + b) + 16b + 4(-(1 + b) - 3b + 9) + (4 - 4b)[/tex]

[tex]220 = 64 + 64b + 16b + 4(-1 - b - 3b + 9) + 4 - 4b[/tex]

[tex]220 - 100 = 60b + 100 - 100[/tex]

[tex]120 / 60 = 60b / 60[/tex]

[tex]2 = b[/tex]

Step 10:  Find a using b = 2

[tex]a = b + 1[/tex]

[tex]a = (2) + 1[/tex]

[tex]a = 3[/tex]

Step 11:  Find c using a = 3 and b = 2

[tex]c = -a - 3b + 9[/tex]

[tex]c = -(3) - 3(2) + 9[/tex]

[tex]c = -3 - 6 + 9[/tex]

[tex]c = 0[/tex]

Step 12:  Find d using b = 2

[tex]d = 4 - 4b[/tex]

[tex]d = 4 - 4(2)[/tex]

[tex]d = 4 - 8[/tex]

[tex]d = -4[/tex]

Answer:  [tex]a = 3, b = 2, c = 0,d = -4[/tex]

Answer:

a = 3

b = 2

c = 0

d = -4

Step-by-step explanation:

Form 4 equations and solve simultaneously

28 = a(2)³ + b(2)² + c(2) + d

28 = 8a + 4b + 2c + d (1)

-5 = -a + b - c + d (2)

220 = 64a + 16b + 4c + d (3)

-20 = -8a + 4b - 2c + d (4)

(1) + (4)

28 = 8a + 4b + 2c + d

-20 = -8a + 4b - 2c + d

8 = 8b + 2d

d = 4 - 4b

Equation (2)

c = -a + b + d + 5

c = -a + b + 4 - 4b+ 5

c = -a - 3b + 9

28 = 8a + 4b + 2c + d (1)

28 = 8a + 4b + 2(-a - 3b + 9) + 4 - 4b

28 = 6a - 6b + 22

6a - 6b = 6

a - b = 1

a = b + 1

220 = 64a + 16b + 4c + d (3)

220 = 64(b + 1) + 16b + 4(-b - 1 - 3b + 9) + 4 - 4b

220 = 60b + 100

60b = 120

b = 2

a = 2 + 1

a = 3

c = -3 - 3(2) + 9

c = 0

d = 4 - 4(2)

d = -4

There are 90 chickens on the farm. If 60% of the animals on the farm are chickens, how many animals are on the farm? Pls help asap!

Answers

Answer:

150

Step-by-step explanation:

You need to add 60 to the 90 and then check it by doing 60% of 150.

Hope this helps.

Answer: 150 is the answer

Step-by-step explanation:

two consecutive integers whose product is 17

Answers

Answer:

8 and 9

Step-by-step explanation:

8 comes after 9 and 8 + 9 = 17

8 and 9 would be the answer

30 students apply for a scholarship,
10 have college degrees
18 have school certificates
8 have both qualifications.
(a) Draw a Venn diagram to show thi
information.
(b) How many students have no
qualification?​

Answers

Answer:

A - school certificates

B - college degrees

So 30 - (10 + 8 + 2) = 10 have no qualification

I need an answer quick!!!!

Answers

Answer:

investment 2 $400 Simple Interest Rate

Step-by-step explanation:

guys i need help lol

Answers

Answer:

x = 17°, m∠ A = 114°

Step-by-step explanation:

We can tell that these pair of angles are corresponding, provided;

Line 1 ║ Line 2, AB ∩ Line 1 and Line 2 ⇒ corresponding ∠s ≅,

m∠ A = m∠ B ⇒ Substitute values of A and B,

6x + 12 = 3x + 63 ⇒ Subtract 3x on either side,

3x + 12 = 63 ⇒ Subtract 12 on either side of equation,

3x = 51 ⇒ Divide either side by 3,

x = 17 ⇒ Substitute value of x to solve for m∠ A,

m∠ A = 6 * ( 17 ) + 12,

m∠ A = 102 + 12,

m∠ A = 114

Solution; x = 17°, m∠ A = 114°

Answer:

x = 17, ∠A = 114°

Step-by-step explanation:

I'm 8 years old and I know how to do this.

6x + 12 = 3x + 63

3x + 12 = 63

3x = 51

x = 17

6(17) + 12

102 + 12 = 114

In July 2008, a wildfire near Yosemite
National Park burned about 53 square
miles of forest. If one square mile equals
640 acres, about how many acres of
forest were burned?

Answers

I’m not positive but do 53 times 640 and you should get the answer

I need a step by step solution ASAP

Answers

Answer:

C 4 /x^2

Step-by-step explanation:

20x / 5x^3

First divide the numbers

20/5 = 4

Then divide the variable

x/x^3  = x/ xxx  = 1/ xx  = 1/x^2

We are left with

4/x^2


If f(x)=x-1/3 and g(x) = 3x+1, what is(fºg)(x)?

Answers

Answer:

(fog)(x)=18x+1029x+1. (gof)(x)=27x+87x−8. Explanation: Given: f(x)=3x−12x+5 and g(x)=7x+33x−1. Solution for (fog)(x).

Step-by-step explanation:

Answer:(fog)(x)=18x+1029x+1. (gof)(x)=27x+87x−8. Explanation: Given: f(x)=3x−12x+5 and g(x)=7x+33x−1. Solution for (fog)(x).

Step-by-step explanation:

Evaluate (if possible) the six trigonometri
trigonometric functions of the real number t. (If an answer is undefined, enter UNDEFINED.)

t= 4π/3

Answers

Answer:

undefined

Step-by-step explanation:

Match the description with the number of possible outcomes.
choosing a card from a deck
2
rolling a number cube
6
flipping a coin
4
spinning a 4-color spinner
52

Answers

Choosing a card from a card deck = 52
Rolling a number cube = 6
Flipping a coin = 2
Spinning a 4 colour spinner = 4

Answer:

here is the correct answer :D

Step-by-step explanation:

Which statement best describes the function represented by the graph?

Answers

Answer:

Step-by-step explanation:

You read a graph from left to right, just like you would read words on a page in a book.  At the left-most "side" of this graph, we are way up at positive infinity.  As we move from left to right, the graph begins to drop in y values.  A drop in y values indicates a decreasing graph.  So it's decreasing, we have that part.  As the graph grows up into y values that increase forever, it will also grow in the x direction to negative infinity.  As the graph decreases in y values from left to right, the x values increase into positive infinity.  So your choice is the second one: The function is decreasing on the interval (-∞, ∞).

Answer:

It's B

Step-by-step explanation:

Find the missing angle.

Answers

Answer:

127

Step-by-step explanation:

Answer:

x= 127 degrees

Step-by-step explanation:

use the vertical angles theorem to say that x=90*+37*. So, x=127 degrees.

Please i need help my homework is really hard
.

Answers

Answer:

f' (n)=9

Step-by-step explanation:

is this what you were looking for?

What is the measure of ∠4?

Answers

I am pretty sure that four would equal 59 degrees because 60+61 equals 121 degrees and that line should in total equal 180. So you would do 180-121 which gives you 59.

|5−4r|=17
Can someone answer this question for me?? I will mark you brainliest if you get the correct answer!!

Answers

Answer:

R=-3 which is the same thing as 11/2

Step-by-step explanation:

Answer:

r=−3,11/2

Step-by-step explanation:

thats what I got

Determine the change to diagonal one of a rhombus if the area is multiplied by 1/8 and diagonal two is multiplied by 1/2 . Answer: Diagonal one is multiplied by

Answers

Answer:

Diagonal one is multiplied by 4

Step-by-step explanation:

area = dia 1 * dia2 / 2

area/8 = dia1/x * dia2/2   / 2

->x = 4

2/3 divided by 1 1/2

Answers

Answer: 0.4

Step-by-step explanation:

math question down below screen shot

Answers

Answer:

the screen shoy isnt showing up

Step-by-step explanation:

Solve: 5/9 + (-4/5)

Answers

Answer:

-11/45

Step-by-step explanation:

5/9 + (-4/5)

25/45 + (-36/45)

(Multiplied each side by opposite denom.)

25/45 -36/45

Simplify

25-36=-11

-11/45

Cannot simpfily

Answer:

Step-by-step explanation:

5/9 + (-4/5)

-11/45 or − 0.244444444 and on and on forever

Draw the shape described below and find its total surface area.
A cylinder 25 ft tall with a diameter of 12 f

Answers

Answer:

hope this helps :)

Step-by-step explanation:

8:07

Cylinder volume & surface area (video)

Factor

x^2−6x+8

(x+4)(x−2)

(x+4)(x+2)

(x−4)(x+2)

(x−4)(x−2)

Answers

Answer:

(x-4)(x-2)

Step-by-step explanation:

Using The AC Method

What is the mode of 4, 9, 9, 9, 4, 6, 6, 6, 9?

Answers

Answer:

9

Step-by-step explanation:

That's the most common number there

Answer:

9

Step-by-step explanation:

The mode of a set of data values is the value that appears most often.

in this set, 9 appears 4 times -> 9 is mode

Jackson bought six pairs of socks for $5 each. The tax on the purchase was 6%. What was the total cost of his purchase?

Answers

Answer:

Step-by-step explanation:

First you multiply 5x6= 30

30x.06= 1.8

30+ 1.8 =31.8

Answer:

31.8

step-by-step explanation:

5*6+6%=31.8

Find a numerical value of one trigonometric function of x for cscx = sinx tanx + cosx

Answers

Answer:

Step-by-step explanation:

we have

[tex]cscx = sinx tanx + cosx\\\\\frac{1}{sinx}=sinx.\frac{sinx}{cosx} +cosx\\\\\frac{1}{sinx}.sinx.cosx= sinx.\frac{sinx}{cosx}.sinx.cosx+cosx.sinx.cosx\\ cosx= (sinx)^{3} +sinx.(cosx)^{2} \\cosx= sinx[(sinx)^{2}+(cosx)^{2})\\ cosx=sinx.1\\cosx=sinx\\tanx=1\\x=\frac{\pi}{4} +k\pi,k-integer.[/tex]

Answer:

cot x=1

Step-by-step explanation:

got it right

can someone help me please?

Answers

Answer:

(10,11)

(8,7)

(6,3)

(4,-1)

(2,-5)

(0,-9)

(-2,-13)

(-4,-17)

Answer: the image of how its supposed to be graphed is listed down below! hope this helped!

Step-by-step explanation:

The graph of a function f is the set of all points in the plane of the form (x, f(x)). We could also define the graph of f to be the graph of the equation y = f(x). So, the graph of a function if a special case of the graph of an equation.

Consider the cartesian equation of a circle, y=-2+- sqrt 36-(x-1)^2 , verses the parametric equations of the same circle: x=1+6 cos t y=-2+6sin t

Answers

What are the advantages of the parametric equations

Answer:

Step-by-step explanation:

Parametric equations shows the relation between a group of quantities by expressing the coordinates of points of a curve and function as one or more independent variables.

From  the question given; the advantages of parametric equations  given

x = 1 + 6 cos t

y= -2 + 6 sin t

are :

1) For a given value of the independent variable the parametric equation is used exactly one point on the graph

2) the parametric equations  have a finite domain

3) the parametric equation is easier to enter into a calculator for graphic

Answer:

That dude was wrong on one of them!

A, C, E

Other Questions
Red squirrels and gray squirrels have been the native species on an island for many years. A few years ago, black squirrels entered this island. The black squirrel is an invasive species. Invasive species aren't native to the ecosystem. They move into an ecosystem because of natural changes or human intervention. Red squirrels and black squirrels have identical food requirements, but gray squirrels have a different diet. What three effects will these events have on the island's squirrel population? can someone help with this please,, also explain if you can.. hey can anyone pls help me out in dis!!!!!!!!! Which choice is equivalent to the quotient shown here for acceptable values of x? Select the correct answer.Which transitional word correctly begins the second sentence in this paragraph?Like many realist writers, Tolstoy uses a simple writing style in his novella The Death of Ivan Ilych. much of what the author tellsreaders about Ivan Ilych's state of mind is not matter-of-fact description. Tolstoy is in effect conveying his protagonist's despair at hisapproaching death.OAMoreoverOBHoweverC. AlthoughD. ThereforeResetNextstum. All rights reservedGood Writing Versu...10:38 PMD# de 5/14/2020Which is the correct answer Crane Corporation had the following 2020 income statement. Sales revenue $197,000 Cost of goods sold 124,000 Gross profit 73,000 Operating expenses (includes depreciation of $19,000) 48,000 Net income $25,000 The following accounts increased during 2020: Accounts Receivable $10,000, Inventory $10,000, and Accounts Payable $11,000. Prepare the cash flows from operating activities section of Cranes 2020 statement of cash flows using the direct method. Comparing the skeletons of which of the following fish wouldbest show the evolution of a fish species?a male fish and a female fish that could produce offspringthe same fish just before it received a cut and after it healeda fish that lived recently and a fish that lived a long time agothe same fish just after it hatched and when it was full-grown Find the area. The figure is not drawn to scale.1.36 in.40 in.33 in.- You can repair your furnace for $500 and it will last 5 more years, but your heating bills will cost you about $1500 per year. Alternatively, a new furnace can be installed for $3000 that will reduce your annual heating bill to $1200. Suppose you sell the house in 5 years and receive an additional $1000 in the sales price of your home (salvage value) because of having a fairly new furnace. Should you replace it? Use a 5-year analysis period and a MARR of 5% 71. When making decisions that are ethical under either profit maximization or corporate citizenship theories, a business should include all of the following steps except a. recognize that there is an ethical issue in the decision. b. apply ethical theories to reasonable alternatives. c. publicize the options you rejected with your reasons. d. reflect on the outcome of the decision once it is made Which of the following statements are not true of carbohydrates?A. Triglycerides are the most common type.B. Monosacharrides, disacharrides, and polysacharrides are the most common types.C. They are the most readily available source of energy for organisms.D. Certain carbohydrates are enzymes or catalysts. What artist created the image above?a. Emil Noldeb. Karl Schmidt-RottluffC. Andre Deraind. Ernst Ludwig KirchnerPlease select the best a WILL MARK BRAINLIEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! The cost for a business trip for 3 people is $1,975 per person. The business trip would use 79%of the companys travel budget. Find the total amount of money the company has budgeted fortravel. pls show work :) Question 6 (1 point) SavedHaving 1 leader CAN help to get through a task and reduce arguingTrueFalse Read the quotation and then answer the question."[When]the University of Texas Law School is compared with [the] law school for Negroes, we cannot find substantial equality in theeducational opportunities offered white and Negro law students by the state. We hold that therequires that petitioner beadmitted to the University of Texas Law School."-Chief Justice Fred Vinson, Opinion of the Court, Sweatt v. Painter (1950)Analyze the quotation and then select the phrase that correctly completes the excerpt.A. 13th AmendmentB. Civil Rights ActC. Due Process Clause of the 5th AmendmentD. Equal Protection Clause of the 14th Amendment ok, im failing math rn so plz help January 1, 2021, Woody Forrest Corporation granted executive stock options to purchase 41,000 of its common shares at $9 each. The market price of common stock was $24 per share on December 31, 2021, and averaged $12 per share during the year then ended. There was no change in the 164,000 shares of outstanding common stock during the year. Net income for the year was $39,000. The number of shares to be used in computing diluted earnings per share for the quarter is: The mk family orchard has 120 apple trees and 90 pear trees. If each fruit tree produces an average of 590 pounds of fruit per year, about how many pounds of fruit can the orchard produce in one year Which of the following is equivalent to the complex number i8?Choose 1 answer:mi1-1plStuck? Watch a video or use a hint.Report a problem Please help if you can