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3 years ago

20 equals 5 times negative 3 plus x

Mathematics

1 answer:

kotykmax [81]3 years ago

8 0

Answer:

20=5*-3+x or 20=-15+x or 35=x

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Which of the following expressions is equivalent to −56−13?Select all that apply.

Dmitrij [34]

So -56 -13 = -69
So the answer would be 69?
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2 years ago

What is an odd number

miv72 [106K]

Answer:

An odd number is any number than can't be divided by two ! Some examples are 1, 3, and 5.

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2 years ago

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G(t) = -9t-4 g(. )=23

Mila [183]

Answer:

Is this high school work?

Step-by-step explanation:

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2 years ago

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What is the product of (7/8)(-16)(-7)(-1/14) A -7 B -9/16 C -1/7 D 23/12

Nat2105 [25]

Answer:

-7

Step-by-step explanation:

(7/8)(-16)(-7)(-1/4)

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3 years ago

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.

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

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

a=4

b=-16

c=-5

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

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

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

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

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

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

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

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

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

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

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

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

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2 years ago

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