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3 years ago

Question 14 what is 2÷1 /7 equal to conversion

Mathematics

2 answers:

wel3 years ago

8 0

The answer for the question is 1/7

Sladkaya [172]3 years ago

6 0

Answer: your answer is 14 i believe

Step-by-step explanation:

Division of fractions is equivalent to multiplication by the reciprocal of the second fraction:

Once rearranged, multiply all of the numerators by each other. Do the same with the denominators and form a new fraction with these values:

The Greatest Common Factor (GCF) of 28 and 2 is 2. The result can be simplified by dividing both the numerator and denominator by 2.

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Which function does this graph represent?

IRISSAK [1]

Answer:

Step-by-step explanation:

f(x)= -3(x+1)^2 +2

> -3, Has to negative because its facing down

>(x+1) means it goes to the left 1 unit

> +2 at the end means it goes up by 2 units

8 0

3 years ago

Read 2 more answers

Use the confidence interval to find the estimated margin of error. Then find the sample mean. A biologist reports a confidence i

Pavlova-9 [17]

Answer:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

Step-by-step explanation:

Assuming that the parameter of interest is the sample mean $\mu$ . And we can estimate this parameter with a confidence interval given by this formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

For this case the confidence interval is given by (1.9, 3.3)

Since the confidence interval is symmetrical we can estimate the sample mean with this formula:

$\bar X = \frac{Lower +Upper}{2}$

$\bar X= \frac{1.9+3.3}{2}= 2.6$

And the margin of error with this one:

$\bar X = \frac{Upper-Lower}{2}$

$ME = \frac{3.3-1.9}{2}= 0.7$

7 0

3 years ago

Help Fast

horrorfan [7]

Answer:

6 square root of 2

Step-by-step explanation:

sin theta = opposite / hypotenuse

sin 45 = 6/x

Multiply by x

x sin 45 = 6

Divide by sin 45

x sin 45/ sin 45 = 6 / sin 45

x = 6/ sin 45

x = 6/ (1/sqrt(2))

x = 6 sqrt(2)

3 0

3 years ago

Read 2 more answers

What is 5/3 simplified sorry my brain is not working

grin007 [14]

5/3 is as simplified as it gets :)

8 0

2 years ago

Read 2 more answers

A rectangular board has an area of 648 square centimeters. The triangular part of the board has an area of 162 square centimeter

maksim [4K]

Answer:

25%.

Step-by-step explanation:

Let E be the event that the dart lands inside the triangle.

We have been given that a rectangular board has an area of 648 square centimeters. The triangular part of the board has an area of 162 square centimeters.

We know that probability of an event represents the chance that an event will happen.

$\text{Probability}=\frac{\text{Favorable no. of events}}{\text{Total number of possible outcomes}}$