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Grace [21]
3 years ago
7

Write a simplified polynomial expression in standard form to represent the area of the rectangle below.

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
3 0

(2x-4)(x+5)  expand with indicated multiplication

2x^2+10x-4x-20

2x^2+6x-20

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Using the measurements given below, find the hypotenuse of the triangle.
zloy xaker [14]

Answer:

In the triangle shown, AB = 11, BC = 61. Find AC. Right Triangle ABC v2. 3,600; 3,842; 60; 62. 4. Using the following measurements, find the length of the leg of the right triangle. leg = 5

Step-by-step explanation:

Not sure if that's helpful, but hope it is.

5 0
3 years ago
Please help me with this 10 points​
kiruha [24]

Answer:

i couldnt see the first 2 good.

3. exact form= 58/15 decimal form= 3.86 mixed # form= 3 13/15

4. exact form= 13/8 decimal form = 1.625 mixed numbers 1 5/8

5.convert thw mixed number to improper fractions, then find the LCD and combine...-8

4 0
3 years ago
Determining Whether a Difference Is Statistically
SCORPION-xisa [38]

Using the z-distribution, it is found that:

  • The 95% confidence interval is of -1.38 to 1.38.
  • The value of the sample mean difference is of 1.74, which falls outside the 95% confidence interval.

<h3>What is the z-distribution confidence interval?</h3>

The confidence interval is:

\overline{x} \pm zs

In which:

  • \overline{x} is the difference between the population means.
  • s is the standard error.

In this problem, we have a 95% confidence level, hence\alpha = 0.95, z is the value of Z that has a p-value of \frac{1+0.95}{2} = 0.975, so the critical value is z = 1.96.

The estimate and the standard error are given by:

\overline{x} = 0, s = 0.69

Hence the bounds of the interval are given by:

\overline{x} - zs = 0 - 1.96(0.69) = -1.38

\overline{x} + zs = 0 + 1.96(0.69) = 1.38

1.74 is outside the interval, hence:

  • The 95% confidence interval is of -1.38 to 1.38.
  • The value of the sample mean difference is of 1.74, which falls outside the 95% confidence interval.

More can be learned about the z-distribution at brainly.com/question/25890103

#SPJ2

6 0
2 years ago
A car is moving 70 miles per hour. how far does it travel in 16 seconds
Serjik [45]

Answer:

0.311 miles

Step-by-step explanation:

Convert 16 seconds to hours :

16 /60×60

= 16÷3600

= .004444hrs

Distance = Speed × time

= 70 × 0.00444444

= 0.311 miles

4 0
3 years ago
Read 2 more answers
Please help <br> 100 pt question
Rudiy27

Answer:

the independent variable is the # of runners while the dependent is the # of water bottles

Step-by-step explanation:

4 0
3 years ago
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