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Tpy6a [65]
3 years ago
15

I need to know how to solve it and get the answer right to check my work

Mathematics
2 answers:
liraira [26]3 years ago
6 0
Assuming that's 22/22, the answer would be 1.Hope this helps!
Could I get Brainliest?

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Ede4ka [16]3 years ago
3 0
Solve it by finding out how many times 22 can be put into 22, which is once, so the answer is 1.
You might be interested in
Carl wants to give away 1/3(fraction) of his baseball card collection.
alexandr1967 [171]

Answer:

1/3 / 1/3

1/3 x 3/1

= 1

Step-by-step explanation:

3 0
2 years ago
A car's position is given by s(t) = {3 – 5t? + 7t hundreds of meters with t in minutes.
Nadya [2.5K]

Answer:

A) (1 s, 2.3 s)

B) (-4 m/s², 3.8 m/s²)

Step-by-step explanation:

The car's position which is the distance is given by the equation;

s(t) = t³ - 5t² + 7t

A) Velocity is the first derivative of the distance. Thus;

v(t) = ds/dt = 3t² - 10t + 7

At v = 0, we have;

3t² - 10t + 7 = 0

Using quadratic formula, we have;

t = 1 and t = 2.3

Thus, time at velocity of 0 is t = (1 s, 2.3 s)

B) acceleration is the derivative of the velocity. Thus;

a(t) = dV/dt = 6t - 10

At velocity of 0, we got t = 1 and t = 2.3

Thus;

a(1) = 6(1) - 10 = -4 m/s²

a(2.3) = 6(2.3) - 10 = 3.8 m/s

Thus, a(t) at v = 0 gives; (-4 m/s², 3.8 m/s²)

8 0
3 years ago
Plz help me with this
enyata [817]

I’m pretty sure the answer is B.

5 0
3 years ago
Read 2 more answers
Find the volume of a cylinder whose height is 7 cm and radius is 10 cm​
Karolina [17]

Question

find the volume of a cylinder whose height is 7 cm and radius is 10 cm​Answer:soln

volume of cylinder= pie r ^h where pie = 22/7

height=7 cm

radius=10 cm

now,

volume of cylinder= 22/7*10*10*7cm

V≈2199.11cm³

3 0
3 years ago
A random sample of 30 males with online dating profiles are recruited for a study about lying in online dating profiles. Each ma
laiz [17]

Answer:

The 95% confidence interval for the difference in mean profile height and mean actual height of online daters is between 0.27 and 0.87 inches.

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So

df = 30 - 1 = 29

95% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 29 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.95}{2} = 0.975. So we have T = 2.0452

The margin of error is:

M = T\frac{s}{\sqrt{n}} = 2.0452\frac{0.81}{\sqrt{30}} = 0.3

In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 0.57 - 0.3 = 0.27 inches.

The upper end of the interval is the sample mean added to M. So it is 0.57 + 0.3 = 0.87 inches.

The 95% confidence interval for the difference in mean profile height and mean actual height of online daters is between 0.27 and 0.87 inches.

3 0
2 years ago
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