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DedPeter [7]
3 years ago
14

Help, please Ill mark brainliest!

Mathematics
1 answer:
aev [14]3 years ago
4 0

Answer:

the answers are 12.5, 5, 2, 0.8 and 0.32

Step-by-step explanation:

2(0.4)^-2

=2(6.25)

= 12.5

2(0.4)^-1

= 2(2.5)

=5

2(0.4)^0

=2(1)

=2

2(0.4)^1

=2(0.4)

=0.8

2(0.4)^2

=2(0.16)

=0.32

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If two _____ line are cut by a ______, then the two pairs of alternate interior angles are congruent
dsp73
Answer


If two [ parallel ] lines are cut by a [ transversal ], then the pairs of alternate exterior angles are congruent.
7 0
3 years ago
Please Help! Will mark brainliest if correct! THANK QQQQQQQQQQQQQQQQQQ!
Fiesta28 [93]

Answer:

About 28.26 inches.

Step-by-step explanation:

The formula for circumfrence is c = 2(pi) * r.

We know that r = 4.5 (because the diameter is 9 inches).

So, the equation is c = 2(pi) * 4.5

Let's solve:

c = (2*3.14) * 4.5

c = 6.28 * 4.5

c = 28.26

Therefore, the final answer is 28.26 inches.

Of course, this is not exact because pi is irrational and goes on forever, but the question is asking for an estimate anyways.

3 0
3 years ago
Read 2 more answers
Finding the Vertex What is the vertex of the quadratic function f(x) = (x – 8)(x – 2)? (,) ​
boyakko [2]

Answer:

<h3>           vertex = (h, k) = (5, -9)</h3>

Step-by-step explanation:

f(x) = (x-8)(x-2)\quad\implies\quad x_1=8\,,\ \ x_2=2\\\\ h=\dfrac{x_1+x_2}2=\dfrac{8+2}2=5\\\\k=f(h)=(5-8)(5-2)=-3\cdot3=-9

3 0
3 years ago
Compare |-2/5| and |-3/8|
nasty-shy [4]

Answer:

2/5 and 3/8

2/5 is greater than 3/8

Step-by-step explanation:

Those parallel lines mean absolute value which means no signs no positive nor negative.

8 0
3 years ago
Find the exact value of cos (11pi/8)<br><br> Thank you!! I will mark brainliest!!
Rama09 [41]

Answer:

The answer in decimal for is   -0.38268

The Exact Answer is in the picture because I couldn't type it, lol

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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