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2 years ago

Will give brainliest!

Mathematics

2 answers:

makkiz [27]2 years ago

6 0

y=3+2x

y=3+2(4)=3+8=11

y=3+2(5)=3+10=13

y=3+2(9)=3+18=21

#10

y=3+2(10)=3+20=23

valina [46]2 years ago

5 0

Replace x in the equation with the given x values and solve for y:

3 + 2(4) = 11

3 + 2(5) = 13

3 + 2(9) = 21

3 + 2(10) = 23

the y values are: 11, 13, 21, 23

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Can 11 , 27, 9 and 6 whats the number closest to 24 it can make?

Marysya12 [62]

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3 years ago

Write each situation as a ratio in simplest form. 10 apples and 6 bananas to 3 oranges and 5 grapes.

mojhsa [17]

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3 years ago

How do you solve <br> -32+2a=0

Semmy [17]

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6 0

3 years ago

Read 2 more answers

The Martin family's truck gets an average of 25 miles per gallon. Predict how many milrs they can drive using 7 gallons of gas.

Hunter-Best [27]

Okay so on average if they can go 25 miles per gallon that would mean you could just multiply 25 and 7 to get 175. So on average they could go 175 miles on 7 gallons of gas. Keep in mind that the answer can and will change depending on traffic, how fast or slow they are going, and if they are traveling behind a big-rig that moves more air that would normally be putting pressure on the car to push out of the way but the big-rig helps save gas but it can also waste more gas if they are driving slower then normal.
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8 0

3 years ago

Construct the indicated confidence interval for the difference between the two population means. Assume that the two samples are

Kruka [31]

Answer:

Step-by-step explanation:

The formula for determining the confidence interval for the difference of two population means is expressed as

Confidence interval = (x1 - x2) ± z√(s²/n1 + s2²/n2)

Where

x1 = sample mean of type A paint

x2 = sample mean of type B paint

s1 = sample standard deviation type A paint

s2 = sample standard for type B paint

n1 = number of samples of type A paint

n2 = number of samples of type B paint

From the information given,

x1 = 75.7

s1 = 4.5

n1 = 11

x2 = 64.3

s2 = 5.1

n2 = 9

x1 - x2 = 75.7 - 64.3 = 11.4

√(s1²/n1 + s2²/n2) = √(4.5²/11 + 5.1²/9) = √4.709

Degree of freedom = (n1 - 1) + (n2 - 1)

df = (11 - 1) + (9 - 1) = 18

For the 98% confidence interval, the z score from the t distribution table is 2.552

Margin of error = 2.552√4.709 = 5.55

The upper boundary for the confidence interval is

11.4 + 5.55 = 16.95 hours

The lower boundary for the confidence interval is

11.4 - 5.55 = 5.85 hours

The correct option is

B. 5.85 hrs < μ1 - μ2 < 16.95 hrs

4 0

3 years ago