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Ivahew [28]
3 years ago
15

Angles A and B together create a 90° angle. ∠A = 4x −10 and ∠B = 2x − 20. Find the angle measures (what will

Mathematics
1 answer:
Ahat [919]3 years ago
3 0

Answer:

12 degrees

Step-by-step explanation:

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Standard normal curve between z=.42 and z=1.92<br> a= .6902<br> b= .3098<br> c= .1902<br> d= .8098
soldier1979 [14.2K]
The correct answer is Choice B: 0.3098.

To find the answer, you have to use a normal distribution table. Look up the percents for each z-score and subtract them to find the region between.

z = 1.92 the percent is 0.9726

z = 0.42 the percent is 0.6628

0.9726 - 0.6628 = 0.3098
4 0
3 years ago
A stage in the shape of a semi circle had a diameter of 42 ft. What is area of the stage? Use 22/7 for π. PLZ I NEED FAST TEST
zavuch27 [327]

A semi circle is half a full circle. Find the area of the full circle and divide it by 2.

Area of a circle = pi x r ^2

R is half the diameter

Area of full circle:

Area = 22/7 x 21^2

Area = 1386 sq. Ft

Area of stage = 1386/2 = 693 square feet

5 0
3 years ago
Read 2 more answers
Please please help me with those questions
Illusion [34]

Answer:

1. acute

2. obtuse

3. obtuse

4.reflex

5.acute

6. right

7. reflex

8. obtuse

9. reflex

10. straight

8 0
3 years ago
Which problem matches the given inequality? d &gt; 12.75 Chelsea spent $12.75. Chelsea spent about $12.75. Chelsea spent less th
timurjin [86]

Answer:

Chelsea spent more than $12.75

Step-by-step explanation:

To solve this problem we should understand the meaning of signs first.

sign (<) → less than

sign (>) → more than

sign (=) → equal to

sign (≤) → Not more than

sign (≥) → At least

If the statement is,

"Chelsea spent more than $12.75"

d > 12.75

Therefore, Chelsea spent more than $12.75 is the correct statement.

7 0
3 years ago
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A single person pays $3,100 in income taxes on a gross income of $38,000. How much would a single person be expected to pay if h
elixir [45]
I/44000=3100/38000

i=3100(44000)/38000

i=$3589.47  (to nearest cent)
5 0
3 years ago
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