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3 years ago

6

Pls help with this it’s 3:44 AM for me and I still didn’t finish My math work ( due tomorrow ) and it’s getting rlly late so can

u guys help me?? ty <33! please try your best!

1 answer:

bixtya [17]3 years ago

7 0

Answer:

try to do it on your own

but i will still explain yoh wait just a minute

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What is the difference of the fractions? Use the number line to help find the answer.<br> -<br> T0

dybincka [34]

Answer:

-7/10

Step-by-step explanation:

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3 years ago

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A DEF has vertices D(-5,-1), E (3, 3), and F (1,-5). Find the equation of the altitude through F in

Tems11 [23]

Answer:

y = -2x -3

Step-by-step explanation:

- the altitude trough F is a perpendicular line to the line DE

- find slope of line DE

D ( x2 = -5, y2 = -1); E (x1 = 3, y1 = 3)

slope m = (y2-y1) / (x2-x1) = (-1-3) / (-5-3) = -4/ -8 = 1/2

-find equation of the altitude trough F

lines that are perpendicular have the slope negative reciprocal (negative reciprocal of 1/2 is -2)

y= -2x +b , for point F(1, -5)

-5 = -2*1 +b, add 2 to both sides

-5 +2 = b, combine like terms

-3 =b

equation of the altitude trough F is y = -2x -3

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3 years ago

Evaluate 4(3h + 7)<br> ————— for h = -2<br> 4 +h

Juliette [100K]

If i understood the question right, you're trying to find the value when h = -2. If that's true so here is how it's done:

$4(3h + 7)\\4(3(-2) + 7)\\4(-6+7)\\4(1)\\=4$

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3 years ago

The perimeter of a semicircle is 5.14 feet. What is the semicircle’s area?

hammer [34]

$\bf \textit{circumference of a semi-circle}\\\\
C=\pi r\qquad 
\begin{cases}
r=radius\\
-----\\
C=5.14
\end{cases}\implies 5.14=\pi r\implies \boxed{\cfrac{5.14}{\pi }=r}\\\\
-------------------------------\\\\
\textit{area of a semi-circle}\\\\
A=\cfrac{\pi r^2}{2} \implies A=\cfrac{\pi }{2}r^2\implies A=\cfrac{\pi }{2}\left( \boxed{\cfrac{5.14}{\pi }} \right)^2
\\\\\\
A=\cfrac{\pi }{2}\implies \cfrac{5.14^2}{\pi ^2}\implies A=\cfrac{26.4196}{2\pi }\implies A=\cfrac{13.2098}{\pi }$

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3 years ago

Please help me, haha...

sashaice [31]

Yup the answer is C !!

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3 years ago