Answer:
The solution is x=4.
BRAINLIEST :)
It is not an extraneous solution.
Please help with this
Answer:
A. x = 5, -3
Step-by-step explanation:
The quadratic equation/formula is:
[tex]x = \frac{-b+- \sqrt{b^2 - 4ac} }{2a}[/tex]
The setup is:
[tex]ax^2+bx+c=0[/tex]
[tex]4x^2 - 8x -60=0[/tex]
Plug in the numbers according to the letter associated:
[tex]x = \frac{8+-\sqrt{-8^2-4(4)(-60)} }{2(4)}[/tex]
[tex]x = \frac{8+-\sqrt{1024} }{8}[/tex]
[tex]x = \frac{8+-32}{8}[/tex]
Solve for addition and subtraction:
[tex]x = \frac{8+32}{8}[/tex] [tex]x = \frac{8-32}{8}[/tex]
[tex]x = \frac{40}{8}[/tex] [tex]x = \frac{-24}{8}[/tex]
x = 5 x = -3
anyone ? please help out
Answer:
1:>
2:>
3:>
Step-by-step explanation:
Answer:
-5 > -12 -5 is greater than -12 because -5 is closer to positive numbers (0) then -12 is.
-6 > -8 -6 is greater than -8 because -6 is closer to positive numbers (0) then -8 is.
6 > -11 6 is greater than -11 because 6 is a positive number and -11 is a negative number.
Dont forget to mark brainliest please!
To apply frosting to a cake, a baker twists a plastic bag containing the frosting into a cone shape with a diameter of 4.2 inches and a length of 6 inches. How many cubic inches of frosting is in the bag? Use 3.14 for pi.
Answer:27.7
Step-by-step explanation:
the formula for a cone is V=1/3πr*2h
it is 1/3 because a cone is one-third of a sphere.
you then put the information from the text in the formula and you get this
V=1/3x 3.14 (pi) x 2.1 to the power of 2 (radius is half of a diameter)x 6 (height)
then you get the answer 27.6948
round to the nearest 10th and you get
A. 27.7
Also, I took the test.
There are 27.77 in³ of frosting is in the bag.
What is volume?The amount of space, measured in cubic units, that an object or substance occupies.
Given that, To apply frosting to a cake, a baker twists a plastic bag containing the frosting into a cone shape with a diameter of 4.2 inches and a length of 6 inches.
Volume of cone = ¹/₃πr²h
r = 4.2/2 = 2.1 in
h = 6 in
Volume = ¹/₃x2.1x2.1x6
= 27.77
Hence, the volume of the cone is 27.77 in³
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What are the rules of simplifying exponents?
Answer:
To simplify a power of a power, you multiply the exponents, keeping the base the same. For example, (23)5 = 215. For any positive number x and integers a and b: (xa)b= xa· b.
Step-by-step explanation:
The quantities x and y are proportional.
x y
2 22
7 77
9 99
Find the constant of proportionality (r) in the equation: y = rx
r = ?
Thanks :)
Answer:
r = 11
Step-by-step explanation:
Given
The above table
y = rx
Required.
Find the constant of proportionality.
To find the constant of proportionality, we simply test the values of y and x in the given formula.
Using y = rx
Make r the subject of formula by dividing both sides by x
y/x = rx/x
y/x = r
r = y/x
From the above table of data;
When x = 2, y = 22
So, r = 22/2
r = 11
When x = 7, y = 77
So, r = 77/7
r = 11
When x = 9, y = 99
So, r = 99/9
r = 11
Notice that r maintains the value of 11 all through.
Hence, the constant of proportionality, r for the above data is 11
Answer:
r = 11
Step-by-step explanation:
khan
What is the area of the shaded region to the nearest tenth of a foot?
find the area of the figure please <3
help asap will mark brainliest
Answer:
74
Step-by-step explanation:
Both angles x and 106 are supplementary which means
x+106=180
x=180-106
x=74
Answer:
74°
Step-by-step explanation:
In the image you have provided, angle 'x' and 106° are co-interior angles. This mean that both the angles add up to 180°. We can easily identify co-interior angles because the angles would be inside. The other types of angles you can get is vertical and corresponding. Using the information in the second sentence we can set up an equation,
⇒ Form an equation
→ x + 106 = 180
⇒ Minus 106 from both sides to isolate x
→ x = 74°
The values of angle x is 74°
need help
ASAP will give 20 points!
Answer:
141
Step-by-step explanation:
24 (triangle) + 117 (trapezoid)
Answer:
141
Step-by-step explanation:
Trapezium + triangle
[½ × (16+10) × 9] + [½ × 6 × 8]
117 + 24
141 in²
Find the area. Will mark brainliest.
Answer:
337.5
Step-by-step explanation:
You need to add 10 to the height then multiply 25 times 27 then divide by 2.
Hope this helps.
Answer:
212.5 cm² and 120 in²
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )
(4)
Here b = 25 and h = 17, thus
A = 0.5 × 25 × 17 = 212.5 cm²
(5)
Here b = 12 and h = 20, thus
A = 0.5 × 12 × 20 = 6 × 20 = 120 in²
Please help with this
Answer:
B
Step-by-step explanation:
I used the quadratic formula
Answer:
B
Step-by-step explanation:
Given
(x + 5)² = 48 ( take the square root of both sides )
x + 5 = ± [tex]\sqrt{48}[/tex] = ± [tex]\sqrt{16(3)}[/tex] = ± 4[tex]\sqrt{3}[/tex] ( subtract 5 from both sides )
x = - 5 ± 4[tex]\sqrt{3}[/tex] → B
just some math :> and meh needs halp
Answer:16
Step-by-step explanation:
5 times 2 is 10. 10 times 0 is 0. 1 times 6 is six
which statement best describes the possible value of the median time of students riding the bus to school?
Answer:
Step-by-step explanation:
The answer would be A. 1 1/5
48/40 = 1 8/40
1 8/40 Simplify to 1 1/5
Hope this helps!
Answer:
its a on edge 2021
Step-by-step explanation:
how many lines of symmetry does the quadrilateral below have.
A. 0
B. 1
C. 2
Which of the following are magnitudes for rotational symmetry of the quadrilateral below about the marked point.
A.30
B.90
C.180
D.None of the above
Answer:
C; A
Step-by-step explanation:
(coming from an 8th grader :)
1. should be A, because on each side of the quadrilateral there are two lines being mirrored.
2. should be C, because the angles are acute and not right or straight. you may be thinking “but there is a straight line” yes, you are right there’s a straight line, but there’s multiple angles consisted in making one whole angle.
Someone please explain these questions
Answer: You find it by using slope
Step-by-step explanation
If the graph is rising from left to right, like climbing a hill, the slope is positive (on a graph, you could count up y units divided by right x units). If it is going down from left to right (like sliding down a hill), the slope is negative (on a graph you have to count down y units and right x units).
ex: y = 5x + 3 is an example of the Slope Intercept Form and represents the equation of a line with a slope of 5 and and a y-intercept of 3. y = −2x + 6 represents the equation of a line with a slope of −2 and and a y-intercept of 6.
PLS HELP NEED TO PASS TEST <3!!!!
find the surface area of the cylinder to the nearest whole number. the figure is not drawn to scale.
905 in^2
1,282 in^2
2,187 in^2
7,691 in^2
Answer:
[tex]A=2\pi rh+2\pi r^2=2*\pi *12*17+2*\pi *12^2= 2187in^2[/tex]
Step-by-step explanation:
Answer:
2,187 in^2
Step-by-step explanation:
A=2πrh+2πr^2
=2·π·12·17+2·π·12^2
≈2186.54849
what is the distance between the pair of points.
(3, 3) and (3, −5)
Answer: 8
Step-by-step explanation:
So the right answer is 8units
Look at the attached picture
hope it will help you...
Good luck on your assignment
Complete the statement with the choice that best
describes the relationship between the polynomial
and its rational zeroes.
A polynomial, P, has a leading coefficient of 1 and
a constant term. The rational roots of Pare all
Answer:
Factors of the constant term
Step-by-step explanation:
the answer is "factors of the constant term"! i hope this helped
The amount Amanda earns babysitting in a month is represented by the equation a=9.5h. In the equation, a
represents the total amount Amanda earns. The number of hours she babysits is represented by h. What is the
constant of proportionality (unit rate) of a to h?
Answer:
9.5
Step-by-step explanation:
Well the constant proportionality is 9.5 because that is what makes p directly proportional to a, because when h increases, a increases, and when h decreases, a decreases.
Type the correct answer in the box. Use numerals instead of words.
Jim Is assessing the popularity of his high school football team's website for the first 5 weeks after the season ends. The average number of visits
on the website for 5 weeks is given in the table below.
Number of Weeks Avg. Number of Visits
0
48,000
1
24,000
2
12,000
3
6,000
4
3,000
1,500
5
9.
The percent decrease in the average number of visits each week since the end of the season was
Answer:50%
Step-by-step explanation:
Each week the number decreased by 1/2 which is equal to 50%. Therefore the average number of decrease per week is 50%. Hope this helped!!
could I by any chance get a brainliest?
The percent decrease in the average number of visits each week since the end of the season was 50%.
What is Statistics?Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
Jim is assessing the popularity of his high school football team's website for the first 5 weeks after the season ends.
The average number of visits on the website for 5 weeks is given
The average number of visits decreased by half each week.
So the percent decrease in the average number of visits each week since the end of the season was 50%
Therefore, the percent decrease in the average number of visits each week since the end of the season was 50%.
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what is the probability of spinning different numbers when the spinner below is spun twice
Answer:
25%
Step-by-step explanation:
Half of a sphere is stacked on top of a cone. They both share a circular base. The radius of the circle is 6 millimeters. The height of the cone is 14 millimeters.
What is the volume of the composite figure? Express the answer in terms of π.
144π mm3
168π mm3
312π mm3
456π mm3
Answer:
312π mm3
Step-by-step explanation: yes
The required volume of the composite figure of the sphere on the top of the cone is 312π mm³. Option c is correct
The sphere is stacked on top of a cone. They both share a circular base. The radius of the circle is 6 millimeters. The height of the cone is 14 millimeters. The volume of the composite figure is to determine.
Volume is defined as the ratio of the mass of an object to its density.
Volume of composite figure = Volume of semi-sphere + Volume of cone
= 2/3πr³ + 1/3πr²h
= 2/3*6³π + 1/3*6²*14π
= 312π mm³
Thus, the required volume of the composite figure of the sphere on the top of the cone is 312π mm³.
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Help! I don't know how to do this! I will mark Brainliest!
Answer:
- 3y² - 7y + 6
Step-by-step explanation:
Given
(- 3y + 2)(y + 3)
Each term in the second factor is multiplied by each term in the first factor, that is
- 3y (y + 3) + 2(y + 3) ← distribute both parenthesis
= - 3y² - 9y + 2y + 6 ← collect like terms
= - 3y² - 7y + 6
Answer:
is it A?
Step-by-step explanation:
i choose that because its the only one with -3y² which is correct
It's Quadratic, Exponential or Linear?
Answer:
quadratic table
Answer:
i think it is exponential
What represents the product of x AND y + 4?
xy+4x
xy+4
x+y+4
x+4y
Answer: A. xy + 4x
Step-by-step explanation:
(x)(y + 4)
distribute the x to both terms
xy + 4x
hope this helps! :)
Answer:
A. xy + 4x
Step-by-step explanation:
(x)(y + 4)
distribute the x to both terms
xy + 4x
Pls help 100 points
Consider this dilation.
(a)
Is the image of the dilation a reduction or an enlargement of the original figure? Explain.
(b)
What is the scale factor? Explain.
The letters M,S,V are the original image.
The letters M’, S’, V’ are the displayed image.
You can see that M’, S’,V’ is a smaller image, so it was a reduction.
The length of line MS is 9 units.
The length of M’S’ is 6 units.
The dialation is 6/9 = 2/3
Answer:
(a) reduction
(b) 2/3
Step-by-step explanation:
(a) The original figure is called ΔMSV, while the dilation is called ΔM'S'V'. Because we can see that M'S'V' is clearly much smaller than MSV, we know that the image is a reduction of the original.
(b) We simply need to find the ratio of one side of M'S'V' to one side of MSV. Look at M'S': the length is just 4 - (-2) = 6 (this is because it's a completely horizontal line). The length of MS is 6 - (-3) = 9.
So, the scale factor is: 6 / 9 = 2/3.
Solve for y: 12x + 4y = 24
Plz help
A) y=4
B) y=-3x+6
C) y=-1/2x+4
D) y=2x+4
Answer: b
Step-by-step explanation:
HELP QUICK!! 25 POINTS AND BRAINLIEST!!
What is the area of the shaded sector of the circle?
a. 20
b. 25
c. 100
d. 72
Answer:
i think its 25 because like if 72 is the shaded part then it can't be the answer 100 wouldn't be the answer because it is too high and 20 wouldn't be the answer because it is too low so 25 is my reasonable answer.
Step-by-step explanation:
Since the area to me is 25 then we would do 360 x 25 = 9000
the you do 9000 / 36 i got 36 by doing 360 / 10
After that you you do 9000 / 36 which gives you 2.5
Last i did 2.5 x 10 which gave me 25
Hope this helpsBrainliest plzhope you get this right
Which statements about functions g(x) = x2 − 4x + 3 and f(x) = x2 − 4x are true? Select all that apply
A)The vertex of the graph of function g is above the vertex of the graph of function f.
B)The graphs have the same axis of symmetry.
C)Function f has a maximum value and function g has a minimum value.
Answer:
It is C i just had that question
Step-by-step explanation:
Answer:
just c i had that question too
Step-by-step explanation:
Somebody help I’ve tried this question many times and still get it wrong
Answer:
$480 in interest to make a total of $1,480. She will not have enough money
Step-by-step explanation:
I=P.r.t
=1000*0.02*24
=$480
Total after 2 years: 1000+480=$1,480
