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nevsk [136]
3 years ago
13

I need help on this.

Mathematics
1 answer:
musickatia [10]3 years ago
5 0
It is C because the square root of 64 is 8 
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Explain why the graph above represents a function.
zloy xaker [14]
We do not see a graph above
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2 years ago
A ladder that is 13 meters long is leaning against a wall. The distance between the foot of the ladder and the wall is 7 meters
Maksim231197 [3]
<h2>Answer:</h2>

The equation that is used to model the length of ladder in terms of x is:

                   x^2-7x-60=0

<h2>Step-by-step explanation:</h2>

We can model this problem with the help of a right angled triangle whose hypotenuse is 13 meters and the other two legs are x meters and (x-7) meters.

where x is the distance between the top of the ladder and the ground.

and (x-7) is the distance between the foot of the ladder and the wall.

Hence, using Pythagorean Theorem we have:

13^2=x^2+(x-7)^2\\\\i.e.\\\\169=x^2+x^2+49-14x\\\\i.e.\\\\169=2x^2-14x+49\\\\i.e.\\\\2x^2-14x+49-169=0\\\\i.e.\\\\2x^2-14x-120=0\\\\i.e.\\\\x^2-7x-60=0

                 Hence, the answer is:

                  x^2-7x-60=0

7 0
3 years ago
Read 2 more answers
Niu has decorated x cards. He started with 24 stickers, and he used 4 stickers per card.
snow_lady [41]

we are given

total number of stickers =24

stickers per cards =4

We are given

number of cards =x

so, we can use formula

number of cards = ( total number of stickers)/(stickers per cards)

we can plug values

x=\frac{24}{4}

x=6

so, total number of cards  is 6...........Answer

8 0
3 years ago
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Evaluate the expression.
butalik [34]
<span>24 ÷ 2 − 6 + 8 ÷ 2 ​

= (</span><span>24 ÷ 2) − 6 + (8 ÷ 2) ​

= 12 - 6 + 4

= 6 + 4

= 10</span>
4 0
3 years ago
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What is the scale factor for 6 inches equals 12 feet
Mars2501 [29]

3 inches to 6 feet is the possible answer

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3 years ago
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