Mathematics High School

You can model an arch at your school using the equation $y=-0.5\left(x+4\right)\left(x-4\right)$ , where $x$ and $y$ are measured in feet. The x-axis represents the ground. Find the width of the arch at ground level.

Answers

Answer 1

Answer:

8feet

Step-by-step explanation:

Given the equation that models the arch of a school expressed as;

[tex]$y=-0.5\left(x+4\right)\left(x-4\right)$[/tex]

If the x axis represents the ground;

At the ground level, x = 0

Substitute x = 0 into the equation to get y;

y = -0.5(0+4)(0-4)

y = -0.5(4)(-4)

y = -0.5 * -16

y = 8ft

Hence the y axis at the ground level is 8feet

Related Questions

The first of two numbers added to two times the second equals 9. The first number decreased by the second equals 3. Find the numbers.

Answers

Answer:

18 and 6

Step-by-step explanation:

i know this because all you have to do is multiply the tow numbers by 2

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Answer:

<4 and <8 are corresponding angle

If a large factory sells its new gadgets for $5 each, it can sell 1050 per month, and if
it sells the same gadgets for $9, it will sell 900 per month. To the nearest whole
number, how many gadgets could be sold per month, if the price was $12?

Answers

(5, 1050), (9, 900), (12, y)
For linear relation,
(y-1050)/(12-5) = (900-1050)/(9-5)
Solve for y,
y = 787.5

Round to the nearest whole number which will be 788

8. If the figure has rotational symmetry, find the
angle of rotation about the center that results in
an image that matches the original figure.
A. 90°
B. 120°
C. 210°
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Answers

B. 120

Because there is 3 ways you could turn it for it to be symmetrical, so 306/3 = 120

Answer:

120

Step-by-step explanation:

Twice one number added to another umber is 18. If the second number is equal o 12 less than 4 times the first number, find the two numbers.
​

Answers

The answer is 12 and 6 because twice the number which is 6 is 12

W/20=-2.5? What it the w?

Answers

Answer:

w=-50

(negative fifty)

Step-by-step explanation:

W would equal -50 hard to explain but if you enter it in for w will fit!

2/5+3/8= i will give brainliest

Answers

so first we should make the denominators the same so find a multiple that 5 and 8 share: they share a multiple of 40, so whatever you do to the denominator you do to the numerator. So the equation should now look like 16/40+15/40 and the answer is 31/40!!

jahajdnnsnekwkwkdnsnjwlqkwnwndnns

Answers

Answer:

msdnvqkyfhcjavnyoqrudfn fn,bq2yor78DHCBN

Work out the value of angle x.
Х
62°​

Answers

Answer:

62 grados x

Step-by-step explanation:

Answer:

because the first side equal for the second side this means that this triangle is isosceles

so 62+62=124

sum of the angles of any triangle =180

180°-124=56degree

Complete the statement. 80 oz = ____ lb

Answers

Answer:

5 lb

Step-by-step explanation:

1 pound is 16lb

80 ÷16=5

What is the exact volume of the cone? A. 40n cm3 B. 80/3 n cm3 C. 160/3 n cm3 D. 160n cm3​

Answers

Answer:

167.55

Step-by-step explanation:

Formula - V = [tex]\pi r^2\frac{h}{3}[/tex]

V = [tex]\pi (4)^2\frac{10}{3}[/tex]

V = 167.55

factor the polynomial FULLY?

Answers

Step-by-step explanation:

4x²-64

(2x)²-(8)²

a²-b²=(a+b)(a-b)

=(2x+8)(2x-8)

Therefore, the factors are -4 and 4.

yes the factors are indeed 4 and -4 boom your welcome

Pythagorean therom HELPPPO

Answers

Answer:

6

Step-by-step explanation:

change up the formula so:

sqrt (10^2-8^2)= 6

Plsssss help me this is urgent.
Which tank has the greater volume?
Tank A has a diameter of 10 ft and a height of 3 ft. Tank B has a diameter of 6 ft and a height of 8 ft

A.Tank B has a greater volume.

B.Tank A and Tank B have the same volume.

C.Tank A has a greater volume

Answers

Tank A has a greater volume.

what’s the answer to this question

Answers

Step-by-step explanation:

I can't see the question. please resend picture


I’m so confused & I don’t get this at all. Can someone please help me. I’ll give brainliest!

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Answer:

So, basically AB goes through (bisects) CAD, which CAD is the kite-like shape you see. So line AB goes through line CAD. Now what they what you to do is prove if lines AB and lines AC are equal.

Can someone help me with this question please? Many thanks in advance.
Jack, Alex and Amir jumped a total of 12.69 m in a long

jump competition.

Alex jumped exactly 200 cm further than Jack.

Amir jumped exactly 2,000 mm further than Alex.

What distance did they all jump?

Give your answers in metres.​

Answers

Answer:

Step-by-step explanation:

The distances they jumped were

x,y,z

y=x+2

z=x+2+2=x+4

x+y+z=12.69

x+x+2+x+4=12.69

3x+6=12.69

3x=6.69

x=2.23

So Jack jumped 2.23m, Alex jumped 4.23m, and Amir jumped 6.23m.

Simplify the fraction to lowest terms, and enter your answer below as a
fraction, using the slash mark ( 7 ) as the fraction bar.
4
12

Answers

Answer:

1/3

Step-by-step explanation:

what is 6x7 i give brainlest

Answers

Answer:

42

Step-by-step explanation:

The product of 6 multiplied by 7 is 42.

We have to find the value of 6×7.

To find the product of 6 multiplied by 7, you simply multiply the two numbers together.

6 multiplied by 7 can be calculated as:

6 x 7

When six is multiplied with seven we get forty two.

= 42

Therefore, the product of 6 multiplied by 7 is 42.

To learn more on Multiplication click:

https://brainly.com/question/5992872

#SPJ6

What is the value of x?

Answers

Answer:

B) 9

Step-by-step explanation:

[tex]\frac{2x-8}{2x-3} = \frac{x-3}{x}[/tex]

x = 9

The answer would be nine (9)


Help me pls and thank you

Answers

just chose the last one 75% are stars

With instructions too please

Answers

Answer on pic above

Hope this helps

PLEASE HELP ASAP PLEASE WILL GIVE BEST RATE AND BRAINLEST PLEASE​

Answers

Answer:

I think it's 145.225 sq in.

Step-by-step explanation:

2.5 x 2 x 3.14 = 15.7

15.7 x 9.25 = 145.225

Answer:

its the second one

Step-by-step explanation:

2.5 x 2 x 3.14 = 15.7 because 3.14 is pi

and then do

15.7 x 9.25 = 145.225 so there you go

(-2x^-4)^-4 * (2^2)^0 solve the integer equation

Answers

Answer:

= 1/16x^16

Step-by-step explanation:

Help 10 points picture included

Answers

Connect the arrows with a straight line

help what is 36,000÷10 with a power of 3

Answers

Answer:

36

Step-by-step explanation:

what is the m<2 = ?

Answers

Answer:

m∠2=9

Step-by-step explanation:

Hello There!

The problem states that the angles are complementary angles

Complementary angles are angles that have measures that add up to equal 90

So given one of the angles we can find the missing angle by subtracting the known angle from 90

90 - 81 = 9

so we can conclude that the measure of angle 2 is 9

Simplify this expressions 5x -7 + 3x + 10

Answers

Answer:

8x + 3

Step-by-step explanation:

=5x+−7+3x+10

=(5x+3x)+(−7+10)

=8x+3

PLEASE HELP ME I AM SO LOST
2+2=?
please i am desperate this is due today

Answers

Answer:

I think 4?????

Step-by-step explanation:

I don't know

Answer:

...

2 + 2 = 4

hope that helps...

Find the slope of the linear function. Helpp

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I think it is 0x+-4
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