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Nimfa-mama [501]
3 years ago
13

Which choice is equivalent to the expression below? -81

Mathematics
1 answer:
mixas84 [53]3 years ago
7 0

Answer:

Well, The expression -81 is equal to -81.

Step-by-step explanation:

-81=-81

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Please help me solve this
Afina-wow [57]

Answer:

y-27=8·(x-3)

Step-by-step explanation:

8 0
3 years ago
What number sentence is true?
meriva
D would be true because if you think about it in percentage wise
2/8= 25%
2/3=66.66%
2/3 is automatically greater than 2/8
Hope this helps :)
5 0
3 years ago
Make a the subject of a2+b2=c2
wel

Answer:

a=\sqrt{c^2-b^2

⇒ a=\sqrt{(c+b)(c-b)}        [Factorized form]

Step-by-step explanation:

Given expression:

a^2+b^2=c^2

We need to make a the subject.

In order to do that we need to solve the expression for a in terms of b and c

We have,

a^2+b^2=c^2

Subtracting both sides by b^2

a^2+b^2-b^2=c^2-b^2

a^2=c^2-b^2

Taking square root both sides in order to remove square of a

\sqrt{a^2}=\sqrt{c^2-b^2}

a=\sqrt{c^2-b^2

The difference of squares can be factorized and written  as:

a=\sqrt{(c+b)(c-b)}    [difference of squares x^2-y^2=(x+y)(x-y) ]

4 0
2 years ago
Which angle is the included angle for JL and KL ?<br> A) L<br> B) K<br> C) L
umka2103 [35]
<span>angle for JL and KL is <L
answer is C. L</span>
6 0
3 years ago
Read 2 more answers
Y=-3x+2 I need help plssssssss
kirill [66]
Graphing or solving for variable? I can solve for either. Of your looking for a graph just comment but I can help you when looking for a variable. So I don’t know if your solving for x or y but I will assume your solving for x. So,
1. Flip the equation; -3x+ 2 = y
2. Add -2 to both sides
3. Divide both sides by -3
Your answer: x= -1/3y + 2/3.
Feedback is appreciated along with brainliest :-)
8 0
3 years ago
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