All categories

3 years ago

Each part of a race is 1/10 mile long. Marsha finished 5 part of the race.How far did marsha race?

Mathematics

1 answer:

andre [41]3 years ago

5 0

We can multiply the number of parts Marsha has finished by the miles of each part:

5 × 1/10

= 5/10

=1/2

Therefore, she raced 1/2 miles.

Hope it helps!

You might be interested in

I WILL MARK BRAINIEST I got one correct there should be about one more that’s also right

Lesechka [4]

So essentially an adjacent angle is when two angles have a common side and a common vertex.

So knowing that we can determine from the picture all the adjacent angles:

D) <2 and <3 are adjacent angles

E) <1 and <3 are adjacent angles

F) <1 and <5 are adjacent angles

I hope this helps.

7 0

3 years ago

PLEASE HELP!! Will give brainliest if you give explanation!

MArishka [77]

The equation in slope-intercept is y=0.625x+7.

y = mx + b

where:
m is the slope of the line
b is the y-intercept of the line

The slope m of the line through any two points (x1, y1) and (x2, y2) is given by:

The y-intercept b of the line is the value of y at the point where the line crosses the y axis. Since for point (x1, y1) we have y1 = mx1 + b, the y-intercept b can be calculated by:

b = y1 - mx1. hope that helped

3 0

3 years ago

Can you guys figure this out please x6∙x∙x3= x6+3 = x9

Marat540 [252]

Answer:

Below.

Step-by-step explanation:

x^6 . x . x^3

= x^6 . x^1 . x^3

= x^(6+1+3)

= x^10.

5 0

3 years ago

Consider the following hypothesis test:

Gnom [1K]

Answer:

a. z=3.09. Yes, it can be concluded that the population mean is greater than 50.

b. z=1.24. No, it can not be concluded that the population mean is greater than 50.

c. z=2.22. Yes, it can be concluded that the population mean is greater than 50.

Step-by-step explanation:

We have a hypothesis test for the mean, with the hypothesis:

$H_0: \mu\leq50\\\\H_a:\mu> 50$

The sample size is n=55 and the population standard deviation is 6.

The significance level is 0.05.

We can calculate the standard error as:

$\sigma_M=\dfrac{\sigma}{\sqrt{n}}=\dfrac{6}{\sqrt{55}}=0.809$

For a significance level of 0.05, the critical value for z is zc=1.644. If the test statistic is bigger than 1.644, the null hypothesis is rejected.

a. If the sample mean is M=52.5, the test statistic is:

$z=\dfrac{M-\mu}{\sigma_M}=\dfrac{52.5-50}{0.809}=\dfrac{2.5}{0.809}=3.09$

The null hypothesis is rejected, as z>zc and falls in the rejection region.

b. If the sample mean is M=51, the test statistic is:

$z=\dfrac{M-\mu}{\sigma_M}=\dfrac{51-50}{0.809}=\dfrac{1}{0.809}=1.24$

The null hypothesis failed to be rejected, as z<zc and falls in the acceptance region.

c. If the sample mean is M=51.8, the test statistic is:

$z=\dfrac{M-\mu}{\sigma_M}=\dfrac{51.8-50}{0.809}=\dfrac{1.8}{0.809}=2.22$

The null hypothesis is rejected, as z>zc and falls in the rejection region.

8 0

3 years ago

-3|x|+2x-1 if x=-5 plz help

Savatey [412]

Answer:

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

f(-5) = -3|-5| + 2*(-5) - 1

= -3*5 + 2*(-5) - 1

= -15 - 10 - 1

= -26

Hope this helps!

5 0

2 years ago

Read 2 more answers