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3 years ago

How to find the unknown length of right triangle

Mathematics

1 answer:

sveticcg [70]3 years ago

8 0

If you know that, you can use sin45°.
sin45°=√2/2
Because AC=18
So, the AB=9√2
And it is a right triangle, the other angle are both 45°.
So, AB=BC=9√2
Those are answer, If you don't understand you can ask me.

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What is the result of adding 2x+7y=4 and -2x-8y=-2

Anika [276]

Answer:

x = 2 + 3.5y

Step-by-step explanation:

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3 years ago

What is the sum of each pair of binary integers?

Natali5045456 [20]

Add digit by digit, from the right, just like any number, except that if it adds to 2, then put a zero and carry one (instead of carrying when it adds to 10 or more).

Example: < means carry, decimal equivalent for checking
1011+1111

1 0 1 1 (8+2+1=11)
+ 1 1 1 1 (8+4+2+1=15)
---<---<----<----<----
1 1 0 1 0 (16+8+2=26)

Proceeding similarly,
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3 years ago

Write an equation in point-slope form and in slope-intercept form.

Sever21 [200]

The point-slope form:

$y-y_1=m(x-x_1)$

The slope-intercept form:

$y=mx+b$

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

We have the points (1, -5) and (-3, -7). Substitute:

$m=\dfrac{7-(-5)}{-3-1}=\dfrac{12}{-4}=-3\\\\y-(-7)=-3(x-(-3))\\\\\boxed{y+7=-3(x+3)}$

Rewrite to the slope-intercept form:

$y+7=-3(x+3)$ <em>use distributive property</em>

$y+7=-3x-9$ <em>subtract 7 from both sides</em>

$\boxed{y=-3x-16}$

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3 years ago

5w²-5w=0 . -10n²+35n=0 . 2x²+15x=0 . 18c²+6c=0 . -32y²-24y=0

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3 years ago

What type of correlation is shown in this Scatterplot

emmasim [6.3K]

Answer:

Step-by-step explanation:

high negative

done ez

mark me as brainlist pls ?

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3 years ago