Evaluate the expression when =a−3 and =b4 . 4 b - a

Answers

Answer 1

Step-by-step explanation:

4(4-(-3))

bodmas

4(4+3)

16+3 =19


Related Questions

Hanna simplified the following math statement. What did she do wrong? Show the correct answer and explain your reasoning.
(6m^3y^2)^4 = 24m^7y^8

Answers

Answer:

y=0

Step-by-step explanation:

Solve pls brainliest

Answers

Answer:

1. no 2: yes 3: yes 4. no 5.no 6. no

Step-by-step explanation:

No, yes, yes, no, no……remember integers are numbers which are not a fraction…..only whole numbers

HELP NEED ANSWER 20 POINT NO LINKS

Answers

Answer:16 perhaps

Step-by-step explanation:

add 4 and 12. also i am sorry if this is incorrect. if its right mark me as brainliest please.

Answer: Equation: 3x+4=12x-14

x=2

Step-by-step explanation:

3x+4=12x-14

18x=9

x=2

squareroot of 9x+63=x+7

Answers

Answer:

x = 2 and - 7 that is the answer

Sketch the graph of y = (x - 2)2 - 16, then select the graph that corresponds
to your sketch.

A. Graph A
B. Graph B
C. Graph C
D. Graph D

Answers

It would be graph A if I did it correct

Answer:

B) Graph B

Step-by-step explanation:

The quadratic equation in vertex form is represented by: y = a(x - h)² + k, where:

(h, k) = vertex

x = h : axis of symmetry

a = indicates a reflection in the x-axis; it also determines the graph's vertical stretch or shrink.

a > 0  the graph opens up.a < 0: the graph opens down.

h =  indicates a horizontal translation.

k =  indicates a vertical translation.

Given the given quadratic equation, y = (x - 2)² - 16:

The vertex occurs at point, (2, -16), and a = 1. Since the value of a is positive, then it implies that the graph opens upward, and the vertex is its minimum point.  The axis of symmetry occurs at h = 2.

To determine another point to use as a reference (and also for graphing) is solving for the equation's y-intercept, which is the point where it crosses the y-axis (where x = 0).

Y-intercept: set x = 0:

y = (x - 2)² - 16

y = (0 - 2)² - 16

y = (-2)² - 16

y = 4 - 16

y = -12

Therefore, the y-intercept is (0, -12).

Therefore, the graph that matches these given descriptions is Graph B.    

Attached is the graphed quadratic equation where it shows the vertex, y-intercept, and the axis of symmetry.

what is 4/3 divided by 2/5

Answers

Answer:

3 1/3

Step-by-step explanation:

Im smart

Answer:

[tex]\frac{20}{6}[/tex] = [tex]3 \frac{1}{3}[/tex] = 3.333333

Step-by-step explanation:

[tex]\frac{4}{3} /\frac{2}{5}[/tex]

You can't divide a fraction so you kcf ( keep change flip )

[tex]\frac{4}{3} *\frac{5}{2}[/tex]

[tex]\frac{20}{6}[/tex] = [tex]3 \frac{1}{3}[/tex] = 3.333333

in triangle abc it is given that AB =9 cm Bc=6cm and Ca = 7.5 cm also
triangle def is given that ef =8 cm and triangle def similar to triangle abc then perimeter of triangle def is ​

Answers

Answer:

Make me as brain liest plz

The perimeter of triangle DEF is; 30 cm

Similar Triangles

We are given dimensions of Triangle ABC as;

AB = 9 cmBC = 6 cmCA = 7.5 cm

Thus;

Perimeter of Triangle ABC = 9 + 6 + 7.5 = 22.5 cm

We are told that Triangle DEF is similar to Triangle ABC.

This means that the ratio of corresponding sides must be equal to the ratio of their perimeter.

Side EF corresponds to side BC. Thus;

Perimeter of Triangle DEF/22.5 = 8/6

Cross multiply to get;

Perimeter of Triangle DEF = (22.5 × 8)/6

Perimeter of Triangle DEF = 30 cm

Read more on similar triangles at; https://brainly.com/question/14285697

CAN SOMEONE PLEASE HELP ASAP I WILL GIVE 30 POINTS AND MARKED AS BRAINLIEST

Answers

I think it’s the United States

Answer:

it's the middle one

Step-by-step explanation:

*I need help on number 5 :(

Answers

Answer:

1000

Step-by-step explanation:

we have formula total /100* percentage of sand dollars

Last year, a gardening store ordered 530,570 potted plants. This year, they ordered 424,456 potted plants. What is the percent of decrease in the number of potted plants ordered annually?

Answers

Answer:

last year = 530570

this year = 424456

decreased plants = 530570-424456 = 106114

decreased percent = 106114÷530570×100%

= 20%

therefore 20% is the decrease precent in the number of potted plants ordered anually

Hawa is going to see a movie and is taking her 5 kids. Each movie ticket costs $15 and there are an assortment of snacks available to purchase for $3 each. How much total money would Hawa have to pay for her family if she were to buy 10 snacks for everybody to share?

Answers

Answer:

  $120

Step-by-step explanation:

6 tickets and 10 snacks will cost 6($15) +10($3) = $90 +30 = $120.

Hawa will have to pay $120 for her family.

Find the measures of the interior angles of the triangle.

Answers

Answer:

∠ A = 59°, ∠ B = 48° , ∠ C = 73°

Step-by-step explanation:

The interior angles of a triangle sum to 180°

sum the 3 angles and equate to 180

x + x - 11 + 73 = 180

2x + 62 = 180 ( subtract 62 from both sides )

2x = 118 ( divide both sides by 2 )

x = 59

Then

∠ A = x = 59°

∠ B = x - 11 = 59 - 11 = 48°

∠ C = 73°

Answer:

<A = 149*

<B = 138*

<C = 73*

Step-by-step explanation:

There are 360* total inside a triangle.

We subtract 73 from 360 to find the combined number of both angles a and b.

360-73 equals 287, so we know that both angles a and b add up to equal 287.

Since angle a equals x and angle b equals x - 11, we would combine the two expressions to find x. When we find x, it will allow us to know what both angles a and b equals to. So we combine x and x- 11, set it equal to 287, and solve for x.

x + x - 11 = 2x-11.

287 = 2x - 11

(Add eleven to both sides)

298 = 2x (divide both sides by two)

X = 149

Since angle a equals x, we know that angle a Is 149*.

And since angle b is x - 11, we take 149, subtract it by 11, and we get 138.

If the product of two positive numbers is 56. If their difference is 10 find the numbers

Answers

smaller --- x

larger ---- x+10

x(x+10) = 56

x^2 + 10x = 56

x^2 + 10x + 25 = 56 + 25

(x+5)^2 = 81

x+5 = 9

x=4

one is 4, the other is 14

Hope this helps you!

Answer:

x=33 ; y=23

Step-by-step explanation:

Given that x+y=56 and x-y=10

Solve for either variable.

x=y+10

Substitute, replace, your solved variable in the other equation

(y+10)+y=56    Subtract 10 on both sides

2y=46     Divide by 2

y=23        Substitute answer into a given equation

x+23=56    Subtract 23 on both sides

x=33

What is the amount received at the end of the period on investing $1000 for 2 years at 5% per annum compound interest?

Answers

Answer:

$1102.50

Step-by-step explanation:

The appropriate compound interest formula is

A = P(1 + r)^t, where P is the principal ($1000), t is the number of years, and r is the interest rate as a decimal fraction.

Here A = $1000(1 + 0.05)^2  =  $1000(1.05)^2 = $1102.50

Z=3 evaluar -[z-(-z)+z]Por favor alguien que me ayude

Answers

Sorry yo no hablar mucho español

expand the linear expression 8(5x - 2)

Answers

Answer:

40x - 16

Step-by-step explanation:

1. Multiply out: 8 x 5x = 40x,    8 x -2 = 16

2. Put together: 40x - 16

Answer:

40x - 16

Step-by-step explanation:

This task is an application of the Multiplicative Property.  Multiply each of the two terms inside parentheses by 8, obtaining

8(5x - 2) = 40x - 16

A certain job takes 2 people 50 hours to complete. How many people are needed to complete the job in 25 hours?

Answers

Answer:

4 people

Step-by-step explanation:

Answer, 1. 50 divided by 2 is 25. So both people take 25 hours each to complete the job. Since it’s only a 25 hours job, it will only take 1 person to complete the job.

will give 20 points to whoever can answer all of the questions.

Answers

Here you go sry it took so long

All the answers to the various operations given from question 1 to 6 have been explained and answered below.

1) We want to use order of operations to solve;

105 - 7² + (72 ÷ 9)

From order of operations which is BODMAS.

First operation for our given expression is bracket. Thus;

72 ÷ 9 = 8

Thus, we now have;

105 - 7² + 8

Next is addition;

7² + 8 = 57

Thus, we now have;

105 - 57 = 48

2)   884284

   - 349407

      534877

3) 6 ÷ ²/₇

⇒ 6 × ⁷/₂

21

4) Kevin makes $78.37 per day. Thus;

Amount he makes in 7 days = 78.37 × 7

$548.59

5) Product of 1389 and 6.58

⇒ 1389 × 6.58

9139.62

6) We want to use distributive property to express 27 + 60.

Now, in distributive property, it implies that;

a(b + c) = ab + ac

Thus, let us get the greatest common factor of 27 and 60 and factorize it out.

GCF of 27 and 60 is 3. Thus;

27 + 60 = ((3*9) + (3*20))

⇒ 3(9 + 20)

⇒ 3(29)

107

Read more at; https://brainly.com/question/16267305

what i can do in math 10​

Answers

Answer:

Listen carefully in class take notes go home review, remember to listen carefully in class is very important, and you need a schedule to help you plan your time.

Step-by-step explanation:

Hope it's help

Brainliest pls

Answer:

Definitely pay attention

always ask questions

take a lot of notes

go through your notes

I recommend watching some videos about the math if you're lost

solve some problems in free time to try and understand

please help me with this and explain

Answers

Answer : 5m^3y^3

10/2=5

5-2=3

4-1=3
10/2 simplifies to 5

M5-M2=M3

N4-N=N3

So,

5M^3N^3

solve the variables ​

Answers

Answer:

x = 72° , y = 54°

Step-by-step explanation:

x and 108° are adjacent angles on a straight line and sum to 180°

x + 108° = 180° ( subtract 108° from both sides )

x = 72°

The vertex of the triangle on the left is vertically opposite x and is congruent

vertex = 72°

The sum of the 3 angles in the triangle = 180° , that is

y + y + 72° = 180°

2y + 72° = 180° ( subtract 72° from both sides )

2y = 108° ( divide both sides by 2 )

y = 54°

Answer:

so the answer is y=54°

Step-by-step explanation:

that is my answer hope it helps

A 20 foot ladder is leaned against a house and the base of the ladder is 4 feet from the house. How far up does the ladder reach?

Answers

Answer:

20.40 ft

Step-by-step explanation:

a^2 + b^2 = c^2 (right triangle) (sides of the triangle are the house and the distance from the base of the ladder to the house. The hypotenuse is the ladder.

20^2 + 4^2 = c^2

400 + 16 = c^2

C = sqrt 416

C = 20.40 ft

125 pounds decreased by 3%

Answers

Answer:

121.25lbs

Step-by-step explanation:

First find 3% of 125

125 x 0.03 = 3.75

Now subtract from 125

125 - 3.75 = 121.25

Find the missing length.
60
36
X

Answers

12 also what are all the answers u can chose from if my answer is incorrect so I can correct myself if I’m wrong.

The missing length of the given triangle divided into two right-angled triangle is 24.

The ratio 60:36:x is a ratio of 2:1:x. This means that the ratio of the lengths of the three segments is 2:1:x. The first segment has a length of 60, so the second segment must have a length of 1/3 * 60 = 24.

Here is the solution in more detail:

The ratio 60:36:x can be written as 2:1:x.

This means that the ratio of the lengths of the three segments is 2:1:x.

The first segment has a length of 60, so the second segment must have a length of 1/3 * 60 = 24.

Therefore, the missing length is 24.

To learn more about length here:

https://brainly.com/question/32060888

#SPJ2

5 to the third power -2(5-2)

Answers

-750 if 5^3 is being multiplied

5^3 is 125, 125 x -2= -250
-250(5-2)
-250 x 3 = -750


can someone answer this for me pls

Answers

Answer:

hbgvfcdexsedfcgvgv b

Step-by-step explanation:

hgvfctdrxseazwsxrdctfvghbtfrdes

find the equation that passing through the point (4,6) and has a vertex of (2,-3)

Answers

Answer:

y = [tex]\frac{9}{4}[/tex] (x - 2)² - 3

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k ) = (2, - 3 ) , then

y = a(x - 2)² - 3

To find a substitute (4, 6 ) into the equation

6 = a(4 - 2)² - 3 ( add 3 to both sides )

9 = a(2)² = 4a ( divide both sides by 4 )

[tex]\frac{9}{4}[/tex] = a

y = [tex]\frac{9}{4}[/tex] (x - 2)² - 3 ← in vertex form

please help me out, thank you ​

Answers

Answer: 24

Step-by-step explanation: 180-114=66

66+90=156

180-156=24

Which of the following represents the factorization of the trinomial below?
x2 - 6x +9
A. (x+2)(x-3)
B. (x - 3)2
C. (x+3)?
D. (x-2)(x-3)
SUBMIT

Answers

Answer:

B. (x-3)^2

Step-by-step explanation:

x^2-6x+9 = (x-3)^2

(a-b)^2=a^2-2ab+b^2

(a+b)^2=a^2+2ab+b ^2

find the value of a b and c.

Answers

Answer:

a= 90

2a= 135

b=45

c= 45

I think x

Step-by-step explanation:

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