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nata0808 [166]
3 years ago
11

For one Geometry test, Nancy correctly answered 18 questions. These correct answers gave her a percent score of 72%. In total, h

ow many questions were on this Geometry test?
Mathematics
1 answer:
Brrunno [24]3 years ago
4 0

Answer:

25 questions.

Step-by-step explanation:

Correct answer = 18

The percent score of the correct answers is 72%.

Let there are x questions in the test. So,

According to the given condition,

72\%\ of\ x=18\\\\\dfrac{72}{100}x=18\\\\x=\dfrac{18\times 100}{72}\\\\x=25

Hence, there were 25 questions in the geometry test.

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Find the area of triangle ABC and the area of XYZ. AABC - AXYZ.
beks73 [17]

Answer:

ABC= 60 XYZ=540

Step-by-step explanation:

The area of a triangle is 1/2*base*height so for ABC we need to find the height first. To do this we use pythag theorem, and create the equation 13^2=5^2+height^2 rearranging this we can figure out that sqrt(height)=13^2-5^2. For the base we do 2*5 since there are two congruent line segments both equal to 5. Using this we can do 1/2*12*10=area of ABC

For XYZ we can do 1/2*30*36=area of XYZ, we can do 2*15 since there are 2 congruent 15 length line segments at the base.

8 0
2 years ago
SOMEBODY PLEASE HELP ME PICTURE INCLUDED
Maslowich
To find the value of y for the given value of x, just replace the x in the equation with 9, which is the given value of x.

y = 1 - 2x

Replace x with 9

y = 1 - 2(9)

2 times 9 is 18

y = 1 - 18

Simplify

y = - 17

That's your answer.

Have an awesome day! :)
8 0
3 years ago
The temperature today will be at most 50 °F
Vitek1552 [10]

Answer:

oh ok , cold as usual.

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
Help please..<br>I really need it​
jarptica [38.1K]

Answer:

256

Step-by-step explanation:

V=1/3*π*4^2*7,46=124.993

32000/124.99=~256

4 0
3 years ago
Evaluate the expression (3-2i)(3-2i) and write the result in the form a+bi ,where a is the real part of your answer and bis the
Maslowich

Answer:

a = 5, b = -12

Step-by-step explanation:

By basic factoring, you get 9 - 12i + 4i^2. Since i^2 is simply -1, the expression evaluates to 9 - 12i - 4, which is 5 - 12i.

4 0
2 years ago
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