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nata0808 [166]
2 years ago
5

I’ve been stuck in this question. Please help me.

Mathematics
2 answers:
strojnjashka [21]2 years ago
6 0

Answer:

They are congruent triangle

Step-by-step explanation:

They are congruent because they have the same measurements for angles and sides.

Veronika [31]2 years ago
5 0
D. They are congruent triangles


School sucks doesn’t it?
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the average starting salary for this year's graduates at a large university (lu) is $55,000 with a standard deviation of $6,000.
alexira [117]

0.84% of the graduates will receive the tax break

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean  and standard deviation , the z-score of a measure X is given by:

Z = x - μ / σ

Z-scores are used to measure how far a measure is from the mean. We find the p-value associated with this Z-score by looking at the z-score table after finding the Z-score. The p-value represents the probability that the measure is smaller than X, which is the percentile of X. The probability of the measure being greater than X is calculated by subtracting 1 from the pvalue.

μ = $55,000 σ = $6,000

This is the pvalue of Z when X = $39,600. So

z = 39600 - 55000 / 6000

z = -2.5

z = -2.5 has a o value of 0.0084

0.84% of the graduates will receive the tax break.

To learn more about similar tax break:

brainly.com/question/15563518

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7 0
1 year ago
Howie sorkin can travel 8 miles upstream in the same time it takes him to go 12 miles downstream. His boat goes 15 mph in still
lozanna [386]

Answer: the speed of the current is 2.5 mph

Step-by-step explanation:

Let the speed of the boat be x miles per hour

Let the speed of the current be y miles per hour

Speed = distance / time

Time = distance/speed

If the boat goes 12miles downstream(in still water) at 15 mph then, the time is

12/ 15 = 0.8 hours

In still water, it means that it moved in the same direction with the current.

The total speed would be x + y. Therefore

x + y = 15 - - - - - - -1

If the boat goes 8 miles upstream in 0.8 hours, the the speed is

8/ 0.8 = 10 miles per hour

Assuming it moved in the opposite direction to the current.

The total speed would be x -y. Therefore

x - y = 10 - - - - - - -2

Adding equation 1 and equation 2, it becomes

2x = 25

x = 25/2 = 12.5

y = 15 - x

y = 15 - 12.5 = 2.5 miles per hour

8 0
3 years ago
Plz help i did it now
puteri [66]

56*4/5

=11.2*4

=44.8

that is the answer

6 0
2 years ago
If the area of a square field is 39.69 sq.m, find the length of one side.<br><br> plz it urgent
olga2289 [7]

Answer:

yhfyugcg

Step-by-step explanation:

ghuihhjjfi night ighi

8 0
3 years ago
Read 2 more answers
The difference of two complementary angles is 20. Find the measure of each angle​
stich3 [128]

Answer:

35° , 55°

Step-by-step explanation:

Let one angle be x.

It's complementary angle is = (90 - x)°

According to the question ,

x - (90 - x) = 20

=> x - 90 + x = 20

=> 2x = 90 - 20 = 70

=> x = \frac{70}{2} = 35

4 0
2 years ago
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