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kotykmax [81]
3 years ago
9

Define right triangle.

Mathematics
2 answers:
Lilit [14]3 years ago
4 0
D is correct like the other person had explained.
Firdavs [7]3 years ago
3 0

Answer:

D

A right triangle is a triangle that has one 90 degree angle, so looking at the options i would say D

Step-by-step explanation:


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7x - y = 10<br> x - 4y = - 14
frez [133]

Answer:

(2, 4)

Step-by-step explanation:

i hope this is what you needed.

8 0
3 years ago
Does 3/15 need to be simplified
Ksju [112]

Yes. 3/15 can still be simplified

Divide 3 from numerator and denomoinator.

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1/5 is the simplified form.

hope this helps

8 0
3 years ago
A construction crew is lengthening a road. The road started with a length of 56 miles, and the crew is adding 4 miles to the roa
goldenfox [79]

Answer:

4d+56=L

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Step-by-step explanation:

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When subbing in 39 for the number of days (or variable "d" in the equation), and following the order of operations, you get 212 miles of road total at the end of the 39 days.

4 0
3 years ago
What is the answer to this equation
GREYUIT [131]
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8 0
3 years ago
Read 2 more answers
Find the derivative of f(x) = -2x2 + 11x at x = 9.
zavuch27 [327]
\bf f(x)=-2x^2+11x\qquad\qquad  \lim\limits_{h\to 0}\ \cfrac{f(x+h)-f(x)}{h}\\\\&#10;-----------------------------\\\\&#10;\cfrac{[-2(\underline{x+h})^2+11(\underline{x+h})]\quad -\quad [-2x^2+11x]}{h}&#10;\\\\\\&#10;\cfrac{[-2(x^2+2xh+h^2)+11x+11h]\quad -\quad [-2x^2+11x]}{h}&#10;\\\\\\&#10;\cfrac{\underline{-2x^2}-4xh-2h^2\underline{+11x}+11h\quad \underline{+2x^2}\underline{-11x}}{h}

\bf \cfrac{-4xh-2h^2+11h}{h}\implies \cfrac{\underline{h}(-4x-2h+11)}{\underline{h}}&#10;\\\\\\&#10;\lim\limits_{h\to 0}\ -4x-2h+11\implies -4x-2(0)+11&#10;\\\\\\&#10;\left. -4x+11\cfrac{}{} \right|_{x=9}\implies -4(9)+11
6 0
4 years ago
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