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Black_prince [1.1K]
4 years ago
5

50 points so Quick answer please, thank you.

Mathematics
2 answers:
wel4 years ago
8 0

Answer:


Step-by-step explanation:

Since triangles have a total degree count of 180 degrees you would subtract 36 + 63 which equals 99 from 180 which would be 81 so

x= 81 degrees

A flat line is also equal to 180 degrees so you subtract 81 (x) from 180 to get 99, so

z=99 degrees

You repeat the beginning process and do 13 + 99 which equals 112 and subtract it from 180 which is 68, so

y=68 degrees

Grace [21]4 years ago
3 0

Answer: x = 81 degrees, y = 68 degrees, z = 99 degrees

Step by step:

Use fact that angles sum up to 180 degrees in any triangle.

Left triangle:

180=36+63+x

x = 180-99 = 81 degrees

Use the fact that x and z are supplementary angles:

180 = x + z = 81 + z

z = 180 - 81 = 99 degrees

And again using triangle angle sum of 180 degree:

180 = 13 + z + y = 13 + 99 + y

y = 180 -112 = 68 degrees

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The school is 3.65 miles from Tonya’s house and 1.28 miles from Jamall‘s house. How much farther from school is Tonyas house tha
Crazy boy [7]

Answer:

2.37

Step-by-step explanation:


4 0
3 years ago
A bag contains 31 red​ blocks, 47 green​ blocks, 23 yellow​ blocks, and 24 purple blocks. You pick one block from the bag at ran
svp [43]

Answer:

0.07072

Step-by-step explanation:

Red Blocks= 31

Green Blocks= 47

Yellow blocks = 23

Purple blocks= 24

Total= 31+47+23+24= 125

P(Yellow) = 23/125

P(Purple)=24/125

NOTE: AND (X), OR (+)

​P(yellow yellow or purple purple​)

= P(Y and Y) + P(P and P)

=(23/125 X 23/125) + (24/125 X 24/125)

=529/15625 + 576/15625

=1105/15625

=221/3125

=0.07072

Therefore:

Probability of Picking Yellow Yellow or Purple Purple is 0.07072.

4 0
3 years ago
The following confidence interval for the population proportion for how many U.S. adults do not get enough fruits and vegetables
Zielflug [23.3K]

Answer:

The interval is constructed at 93% confidence.

Step-by-step explanation:

Confidence interval concepts:

A confidence interval has two bounds, a lower bound and an upper bound.

A confidence interval is symmetric, which means that the point estimate used is the mid point between these two bounds, that is, the mean of the two bounds.

The margin of error is the difference between these two bounds, divided by 2.

Confidence interval of proportions concepts:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

The margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

In this problem, we have that:

2050 people, so n = 2050.

Lower bound: 0.878

Upper bound: 0.903

\pi = \frac{0.878 + 0.903}{2} = 0.8905

M = \frac{0.903 - 0.878}{2} = 0.0125

Confidence level:

We have to find z.

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.0125 = z\sqrt{\frac{0.8905*0.1095}{2050}}

0.0069z = 0.0125

z = \frac{0.0125}{0.0069}

z = 1.81

z = 1.81 has a pvalue of 0.965.

That is:

]1 - \frac{\alpha}{2} = 0.965

\frac{\alpha}{2} = 0.035

\alpha = 2*0.035

\alpha = 0.07

Finally

1 - \alpha = 1 - 0.07 = 0.93

The interval is constructed at 93% confidence.

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3 years ago
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The answer for your question is c
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The inequality is y<span>≥45x. </span>
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4 years ago
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