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shusha [124]
3 years ago
7

Solve -3 < 2x + 3 < 5.

Mathematics
2 answers:
Alex777 [14]3 years ago
5 0

Answer:

答案是 NO.c

Step-by step:

第一的,

-3=2x+3

-6=2x

因此,x= -3

第二,

2x+3=5

2x=5-3

2x=2

因此, x=1

Kazeer [188]3 years ago
5 0

Answer:

C

Step-by-step explanation:

Hope I helped you

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Solve for the indicated angle to the nearest tenth of a degree.<br> o<br> 18<br> 25
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Answer:

\theta=54.2^\circ

Step-by-step explanation:

<u>Right Triangles</u>

The ratios of the sides of a right triangle are called trigonometric ratios.  Each acute angle has an adjacent side and an opposite side. The trigonometric ratios are defined upon those sides.

The tangent ratio is defined as:

\displaystyle \tan\theta=\frac{\text{opposite side}}{\text{adjacent side}}

The opposite side is 25 and the adjacent side is 18, thus:

\displaystyle \tan\theta=\frac{25}{18}=1.389

The angle is calculated by using the inverse tangent function:

\theta=\arctan 1.389

\boxed{\theta=54.2^\circ}

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Answer:

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Step-by-step explanation:

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3 years ago
Please help me find the value of this expression 2[5(11 - 2)] - 16
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Hello there, and thank you for asking your question here on brainly.

Short answer: 74

Why?

We have two sets of parenthesis here, and we have to do the parenthesis inside of the other parenthesis, (called brackets) first. (11 - 2 = 9) Now multiply 9 by 5. (9 × 5 = 45) Multiply 45 by 2 . . . (45 × 2 = 90) Finally, subtract 90 by 16. (90 - 16 = 74)

Hope this helped you! ♥
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The impact that the 85 had on the mean test score was that the mean/average increased by 0.6.
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