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

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

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Answer:

= 1/16x^16

Step-by-step explanation:

With instructions too please

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Answer on pic above

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What is the value of x?

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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)

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

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Tank A has a greater volume.

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

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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

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


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.

Find the slope of the linear function. Helpp

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I think it is 0x+-4

Hey, this is an ape3x question id really appreciate it if someone could help me on this..

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Answer:

<4 and <8 are corresponding angle


Help me pls and thank you

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just chose the last one 75% are stars

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

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

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Answer:

36

Step-by-step explanation:

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

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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

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.

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

8. If the figure has rotational symmetry, find the
angle of rotation about the center that results in
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A. 90°
B. 120°
C. 210°
D. no rotational
symmetry

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:

Help 10 points picture included

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Connect the arrows with a straight line

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

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Answer:

8x + 3

Step-by-step explanation:

=5x+−7+3x+10

=(5x+3x)+(−7+10)

=8x+3

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

jahajdnnsnekwkwkdnsnjwlqkwnwndnns

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Answer:

msdnvqkyfhcjavnyoqrudfn fn,bq2yor78DHCBN

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Step-by-step explanation:

4x²-64

(2x)²-(8)²

a²-b²=(a+b)(a-b)

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

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!!

Pythagorean therom HELPPPO

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Answer:

6

Step-by-step explanation:

change up the formula so:

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

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

Answers

(5, 1050), (9, 900), (12, y)
For linear relation,
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W/20=-2.5? What it the w?

Answers

Answer:

w=-50

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Step-by-step explanation:

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Complete the statement. 80 oz = ____ lb

Answers

Answer:

5 lb

Step-by-step explanation:

1 pound is 16lb

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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

what’s the answer to this question

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Step-by-step explanation:

I can't see the question. please resend picture

Simplify the fraction to lowest terms, and enter your answer below as a
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4
12

Answers

Answer:

1/3

Step-by-step explanation:

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

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Answer:

I think 4?????

Step-by-step explanation:

I don't know

Answer:

...

2 + 2 = 4

hope that helps...

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