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3 years ago

Please please please help me with two questions. Answer correctly for brainlist!!!!

Mathematics

2 answers:

Volgvan3 years ago

8 0

For the first question, the answer would be 280 miles. This because 200 ÷ 5 = 40, so if you take seven you can split it into 5 and 2. We know that for every 5 inches there are actually 200 and for 2 inches it would 80 miles. Simply add them togeather to get 280.

The answer to the second question would be 24 because 6 x 8 = 48, so 3 x 8 = 24

LOL I think that this is correct XD

Vesnalui [34]3 years ago

5 0

1. 28.57

2. 16

Hope this is right.

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WHAT'S THE RANGEE??

motikmotik

Answer:

-2 < y ≤ 10

Step-by-step explanation:

The graph's lowest point is at y = -2, and the graph's highest point is at y = 10, so we know it would start off with -2 and end with 10. The dot at the lowest point is not shaded in, indicating that the graph does not include -2. So, we would represent this exclusion in our inequality with a less than (<) sign. As for the highest point at y = 10, it is shaded in, indicating that the graph does include 10. We would show this in our inequality with a less than or equal to sign (≤)

7 0

3 years ago

ONLY ANSWER IF YOU KNOW THE ANSWER!!

rodikova [14]

Answer:

1.5+1.5= 3 hours

Step-by-step explanation:

if you take 1.5 hours two times it will get you 3 hours. so it will be 3 hours in the water if the boat goes 24 miles. hope this helps.

4 0

3 years ago

Human visual inspection of solder joints on printed circuit boards can be very subjective. Part of the problem stems from the nu

irina [24]

Answer:

(a) The probability that a selected joint was judged to be defective by neither of the two inspectors is 0.906.

(b) The probability that a selected joint was judged to be defective by inspector B but not by inspector A is 0.0213.

Step-by-step explanation:

The sample of joints randomly selected is, n = 10,000.

Number of joints judged defective by inspector A is, n (A) = 727.

The probability that a joint is judged defective by inspector A is:

$P(A)=\frac{n(A)}{n} =\frac{727}{10000} =0.0727$

Number of joints judged defective by inspector B is, n (B) = 756.

The probability that a joint is judged defective by inspector B is:

$P(B)=\frac{n(B)}{n} =\frac{756}{10000} =0.0756$

Number of joints judged defective by at least one of the inspectors is,

n (At least 1) = 940.

The probability that a joint is judged defective by at least one of the inspectors is:

$P(At\ least\ 1)=\frac{n(At\ least\ 1)}{n} =\frac{940}{10000}=0.094$

(a)

Compute the probability that a selected joint was judged to be defective by neither of the two inspectors as follows:

P (At least 1) = 1 - P (Less than 1)

= 1 - P (None)

P (None) = 1 - P (At least 1)

$=1-0.094\\=0.906$

Thus, the probability that a selected joint was judged to be defective by neither of the two inspectors is 0.906.

(b)

Compute the probability that a selected joint was judged to be defective by inspector B but not by inspector A as follows:

P (B but not A) = P (At least 1) - P (A)

$=0.094-0.0727\\=0.0213$

Thus, the probability that a selected joint was judged to be defective by inspector B but not by inspector A is 0.0213.

6 0

3 years ago

Which is the solution set for 2n-7<25

suter [353]

2n < 25 + 7
2n < 32
n < 32/2

Answer: Since thirty-two divided by two equals sixteen we add that with n and we get our answer which is n < 16

8 0

3 years ago

Please help and if possible show your work

jekas [21]

Answer:

514.5 ft.³

Step-by-step explanation:

Volume of a triangular prism

= base area × height

In the figure, the base is a right-angled triangle.

The base area

= (7×7)÷2

= 24.5 ft²

The volume of the prism

= 24.5×21

= 514.5 ft³

3 0

3 years ago