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3 years ago

Please help me, I'M IN A TEST!

Mathematics

1 answer:

Kaylis [27]3 years ago

3 0

Answer:

x = 3.

Step-by-step explanation:

5x = 15

x = 3

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6(2-3x) > 12<br>.......

Evgen [1.6K]

Answer:

6(2-3x) > 12 2x-3 (-4+3x)<72

Step-by-step explanation:

6(2-3x) > 12

x < 0

2x-3 (-4+3x)<72

2x-3=

6 0

3 years ago

Read 2 more answers

The brick will be painted. Which measure will help the painter know how much paint to buy?

Lera25 [3.4K]

Step-by-step explanation:

B) Surface Area

C) Volume

4 0

3 years ago

What is the area of the rectangle in square inches ? the dimensions is 5/6 x 1/3

balandron [24]

Answer:

5/18 in²

Step-by-step explanation:

The area of a rectangle is found by multiplying its length by its width. For dimensions of 5/6 in by 1/3 in, the area is ...

(5/6 in)·(1/3 in) = 5/18 in²

3 0

4 years ago

Sarah is taking a test. The test is designed to produce an overall mean score of 85 with a standard deviation of 5 for all test

Arturiano [62]

Answer:

Option D)

The area below the standardized test score is 0.8413

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 85

Standard Deviation, σ = 5

We are given that the distribution of score is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(score is below 90)

$P( x < 90) = P( z < \displaystyle\frac{90 - 85}{5}) = P(z < 1)$

Calculation the value from standard normal z table, we have,

$P(x < 90) =0.8413 = 84.13\%$

Thus, the correct answer is

Option D)

The area below the standardized test score is 0.8413

4 0

3 years ago

Express 630 grams as a percentage of 1 kilogram

zubka84 [21]

63%

To express as a percentage divide 630 g by 1 Kg and multiply by 100%

note that 1 Kg = 1000 g ( units must be the same)

$\frac{630}{1000}$ × 100% = 63%

8 0

4 years ago