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MariettaO [177]
3 years ago
8

EASY FAST MATH!!! HURRY! RATING BRAINLIEST!!!!

Mathematics
1 answer:
Mariana [72]3 years ago
4 0

Answer:

quadratic

Step-by-step explanation:

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In the regular nonagon shown, what is the measure of angle x?<br>A.36<br>B.40<br>C.45<br>D.60
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The answer is 45 i took the test i got it correct
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Pumps A, B, and C operate at their respective constant rates. Pumps A and B, operating simultaneously, can fill a certain tank i
shepuryov [24]

Answer:D) 1 hr

Step-by-step explanation:

Given

Pump A and B can fill tank in \frac{6}{5} hr

Pump A and C can fill tank in \frac{3}{2} hr

Pump B and C can fill tank in 2 hr

Let A be the total hr taken A therefore rate of A=\frac{1}{A} /hr

Let B be the total hr taken B therefore rate of B=\frac{1}{B} /hr

Let C be the total hr taken C therefore rate of C=\frac{1}{C} /hr

\frac{1}{A}+\frac{1}{B}=\frac{5}{6}-----1

\frac{1}{B}+\frac{1}{C}=\frac{1}{2}-----2

\frac{1}{A}+\frac{1}{C}=\frac{2}{3}-----3

Adding 1,2 & 3

2(\frac{1}{A}+\frac{1}{B}+\frac{1}{C})=\frac{5}{6}+\frac{1}{2}+\frac{2}{3}

\frac{1}{A}+\frac{1}{B}+\frac{1}{C}=\frac{2}{2}

\frac{1}{A}+\frac{1}{B}+\frac{1}{C}=1

thus time taken by A,B and C combined is 1 hr

7 0
3 years ago
A quadratic function is defined by g(x) = (x + 4)2 +7.
Travka [436]

Step-by-step explanation:

The vertex is the point (-4, 7).

4 0
2 years ago
I will give you brainliest &lt;3
mamaluj [8]

Answer:

Triangle AEC can be proved congruent to triangle BED by St= 8x2 .

Step-by-step explanation:

6 0
2 years ago
How to solve the equation
denpristay [2]
We can use substitution to solve this equation in here y=6 and x=0 .
Hope this help you !

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