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1 year ago

15 POINT ON THE LINE How many numbers are in the list -33, -28, -23, . . ., 52, 57?

1 answer:

4 0

The pattern is increasing by 5

-33, -28, -23, -18, -13, -8, -3, 2, 7, 12, 17, 22, 27, 32, 37, 42, 47, 52, 57

We have 19 numbers in the list.

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Answer:

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Step-by-step explanation:

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A regular pentagon has an apothem of 3.2 and an area of 37.2 m. What

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3 years ago

Which of following equations are identities. Check all that apply.

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I think answer should be d. Please give me brainlest I hope this helps

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3 years ago

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HELP ME PLEASE !!!!!!!!

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Answer:

B and D

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3 years ago

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Pls only do this if yk it because i’m giving correct answer brainliest! :))

Leno4ka [110]

Answer:

$x=2+\frac{1}{2}\sqrt[]{21}$

$x=2-\frac{1}{2}\sqrt{{21}$

Step-by-step explanation:

$4x^2-16x-26=-21$

Add 21 on both sides.

$4x^2-16x-26+21=-21+21$

$4x^2-16x-5=0$

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b=-16

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$x=\frac{-b\frac{+}{}\sqrt[]{b^2-4ac} }{2a}$

$x=\frac{-(-16)\frac{+}{}\sqrt[]{(-16)^2-4(4)(-5)} }{2(4)}$

$x=\frac{16\frac{+}{}\sqrt[]{256+80} }{8}$

$x=\frac{16\frac{+}{}\sqrt[]{336} }{8}$

$x=\frac{16\frac{+}{}\sqrt[]{2^2*2^2*21} }{8}$

$x=\frac{16\frac{+}{}2*2\sqrt[]{21} }{8}$

$x=\frac{16\frac{+}{}4\sqrt[]{21} }{8}$

---------------------------------------------------------------------------

$x=\frac{16}{8}+\frac{4\sqrt[]{21}}{8}$

$x=2+\frac{1}{2}\sqrt[]{21}$

---------------------------------------------------------------------------

$x=\frac{16}{8}-\frac{4\sqrt[]{21}}{8}\\x=2-\frac{1}{2}\sqrt{{21}$

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2 years ago

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