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3 years ago

Help me please !

2 answers:

8 0

You take the mean of 12.89 from marcus' score od 13.7 to get .81, then divide that by the standard deviation of 1.95. This gives you .415 and thats 65.9% on the z table. In the summary tell him he only scored better than 65.9% of students or average.

scoray [572]3 years ago

6 0

Marcus score is 13.7, the mean is 12.89, and the standard deviation is 1.95, so I’ll do ( 13.7 – 12.89)/ 1.95, Since Marcus' z-score is 0.415. The area to the left of the z-score is 65.9% so therefore Marcus did scored better than 65.9% of the students. So Marcus needs to score 98% better of all the other students in order for him to receive an actual certificate.

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Convert 27.0 meter per second to kilometer per hour<br><br> Note: i need this ASAP plzz

DedPeter [7]

Answer:

97.2

Step-by-step explanation:

multiply the speed value by 3.6

8 0

3 years ago

Karen made 175 quarts of punch for her son and 11.3 quarts for

Alenkinab [10]

Answer:

186.3 quarts of punch

Step-by-step explanation:

175+11.3=186.3

it asks how much did she make in total so you would need to add the 2 together to get the total

6 0

3 years ago

(50 points + Brainliest for RIGHT answer).

ycow [4]

(-2, 0) and (0, -2)
slope = (0+2)/(-2 - 0) = -1
b = -2

slope intercept equation
y = -x - 2

compare equation from given
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y - 3 = -x - 5
y = -x - 5 + 3
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answer is A
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5 0

3 years ago

Read 2 more answers

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erma4kov [3.2K]

Answer:

rule

Step-by-step explanation:

6 0

3 years ago

A counter top is 18 feet long and 3 feet wide. What is the area of the counter top in square meters? Use the conversion 1 foot =

podryga [215]

Answer:

Area of the counter top is $5.02\ m^2$ .

Step-by-step explanation:

Given:

Length of the Counter top = 18 feet

Width of the counter top = 3 feet

We need to find the area of the counter top is square meter;

Solution:

Now we need to find the area of the counter top is square meter.

But given data is in feet so we will first convert feet into meters.

1 foot = 0.305 meter.

So 18 feet = Number of meters in 18 feet.

By Using Unitary method we get;

Number of meters in 18 feet = $18\times 0.305 = 5.49\ m$

Length of the Counter top = 5.49 m

Also 3 feet = Number of meters in 3 feet.

Again Using Unitary method we get;

Number of meters in 3 feet = $3\times 0.305 = 0.915\ m$

Width of the counter top = 0.915 m

Now we know that;

Area of the counter top can be calculated by multiplying Length of the counter top with width of the counter top.

framing in equation form we get;

Area of the counter top = $5.49\times 0.915 = 5.0233\ m^2$

Rounding up to 2 decimals we get;

Area of the counter top = $5.02\ m^2$

Hence Area of the counter top is $5.02\ m^2$ .

3 0

3 years ago