All categories

3 years ago

Divide. 8 2/5÷(−2 1/5) Enter your answer as a mixed number, in simplified form, in the box.

Mathematics

1 answer:

Reptile [31]3 years ago

6 0

Answer:

-3 $\frac{9}{11}$

Step-by-step explanation:

You might be interested in

The standard IQ test is designed so that the mean is 100100 and the standard deviation is 1515 for the population of all adults.

Natalija [7]

Answer:

The sample size should be approximately 151.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 100

Population standard deviation, σ = 15

We have to evaluate the sample size, n.

Alpha, α = 0.10

Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64$

$100 \pm 1.64(\frac{15}{\sqrt{n}} ) = (98,102)$

$100 \pm 1.64(\displaystyle\frac{15}{\sqrt{n}} ) = (98,102)\\\\1.64(\frac{15}{\sqrt{n}} ) = 2\\\\n = 151.29 \approx 151$

Thus, the sample size should be approximately 151.

6 0

3 years ago

How do I find the gradient of the line y=x-5

Katen [24]

The gradient is the same as the slope.
The gradient is always before the x variable or is the coefficient of the x variable when an equation is in the slope intercept form.
The gradient in this equation is 1

8 0

3 years ago

Solve the equation below for x by graphing. x ≈ -2.50 x ≈ 2.50 x ≈ -0.50 x ≈ -6.00

Sunny_sXe [5.5K]

Where is the graph??

6 0

3 years ago

Read 2 more answers

You have 1/8 gallon of melted crayon wax. You pour the wax equally into 8 different molds to make new crayons. What fraction of

saw5 [17]

Answer:

2 cups

Step-by-step explanation:

16/8=2 so it is 2 cups

7 0

3 years ago

A football team scored 3 touchdowns, 3 extra

Reil [10]

Answer:

3x6+3x1+4x3

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers