3 years ago

Someone help me please

Mathematics

1 answer:

Darina [25.2K]3 years ago

8 0

It’s the second one

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a table was listed $400 after discount.And the net price was $450.what is the rate discount and marked price?

Rama09 [41]

Answer:

Your answer

Discount rate = 11.11%

Mark it as Brainlist. Follow me for more answer.

Step-by-step explanation:

5 0

3 years ago

Simplify. (-2)^-3<br> A.-8<br> B.-1/8<br> C.1/8<br> D.8

DiKsa [7]

ANSWER

${( - 2)}^{ - 3} =- \frac{1}{ 8}$

EXPLANATION

We want to simplify;

${( - 2)}^{ - 3}$

Recall that,

${a}^{ - m} = \frac{1}{ {a}^{m} }$

${( - 2)}^{ - 3} = \frac{1}{{( - 2)}^{ 3}}$

We multiply out to get,

${( - 2)}^{ - 3} = \frac{1}{{- 2} \times - 2 \times - 2}$

${( - 2)}^{ - 3} = \frac{1}{ - 8}$

The correct choice is B.

6 0

3 years ago

Suppose the scores on an exam are normally distributed with a mean μ = 75 points, and standard deviation σ = 8 points. Suppose t

alexandr402 [8]

Answer:

89.008

Step-by-step explanation:

z = (x– mean)/ standard deviation

x = z * standard deviation + mean

Now, z value for the top 4% of the exams (which is the same as getting a score below the 96%) has to be found using a z table.

In this case z = 1.751

x = 1.751 * 8 + 75

x = 89.008

6 0

3 years ago

Compute using significant digits. What is the area of a parallelogram with length 17.25 mm and width 5.065 mm?

Dmitriy789 [7]

Answer: Option 'a' is correct

Step-by-step explanation:

Since we have given that

Length of parallelogram =17.25 mm

Width of parallelogram =5.065 mm

As we know the formula for " Area of parallelogram"

Area of parallelogram is given by

$Area= length \times breadth\\\\17.25\times 5.065=87.03 \ mm^2$

Hence, option 'a' is correct .

8 0

3 years ago

Place the following numbers in order from largest to smallest.

e-lub [12.9K]

Answer:

Step-by-step explanation:

pi = 3.14 --> round pi to 3 --> pi/2 = 1.5 --> pi^2 = 9

6 > sqrt(28) > 5

4> \sqrt[3]{28\\} > 3

Thus D

3 0

3 years ago