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3 years ago

9

Please help!!!! Tell me whether it’s a equation or not pleasr

1 answer:

goldfiish [28.3K]3 years ago

3 0

This answer is a equation, my teacher told me this

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Answer number 1 please.

Minchanka [31]

$\sf {a}^{2} = {13}^{2} - {5}^{2}$

Formula :

Base²= Hypotenuse² - Perpendicular ²

$\\ \\$

$\hookrightarrow\sf {a}^{2} = {13}^{2} - {5}^{2}$

$\\ \\$

$\hookrightarrow\sf {a}^{2} =169 - 25$

$\\ \\$

$\hookrightarrow\sf {a}^{2} =144$

$\\ \\$

$\hookrightarrow\sf {a} = \sqrt{144}$

$\\ \\$

$\hookrightarrow\sf {a} = \sqrt{12 \times 12}$

$\\ \\$

$\hookrightarrow\sf {a} = 12$

Remember the a² in formula has nothing to do with the a we have to find. :)

6 0

2 years ago

Read 2 more answers

Find an equation for the linear function which has y-intercept -2 and x-intercept 9

Alexxx [7]

Answer:

equation y=-11/50-2

Step-by-step explanation:

Y intercept is where you start which is -2. Then you calculate the slope m=x1-y1/x2-y2

4 0

3 years ago

KL = 4x +3.<br> JK = 4x + 2, and<br> JL = 45<br> Find KL.

lbvjy [14]

Answer:

$KL=23$

Step-by-step explanation:

We are given the length of the whole line and its two halves. Since JK and KL make up the line JL, adding them together would make the line JL.

$(4x+3)+(4x+2) = 45$

$8x+5=45$

$8x=40$

$x=5$

Now we can plug the value of $x$ back into the expression we were given for the line KL.

$4(5)+3$

$23$

7 0

3 years ago

What is 9 2/3 - 2 8/10

umka21 [38]

9 2/3 - 2 8/10 = 16 13/15

7 0

3 years ago

How do you calculate the midpoint of question e)? I am very desperate. please help

andrey2020 [161]

Answer:

(-1,-1)

Step-by-step explanation:

Midpoint equation: $(\frac{x_2+x_1}{2}, \frac{y_2+y_1}{2})$

= $(\frac{-5/2+1/2}{2},\frac{-1/2-3/2}{2} )$

= $(\frac{-2}{2},\frac{-2}{2})$

=(-1,-1)

Use the formula and plug it in :)

7 0

2 years ago