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dem82 [27]
3 years ago
13

Whats 407 divided by 47..​

Mathematics
2 answers:
vovangra [49]3 years ago
6 0

Answer:

8.65957446809

Step-by-step explanation:

8\frac{31 }{47}   8.7

Flauer [41]3 years ago
4 0

Answer: 8.65 but 8.7 rounded to the nearest tenth

Step-by-step explanation:

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Jake's test scores are 86, 70, 72, 100, 96, and 80. What must Jake earn of his last test to earn a mean grade of exactly 85%?
kompoz [17]

Answer:

91

Step-by-step explanation:

Mean is calculated as

mean = \frac{sum}{count}

let x be his test score of his last test , then

\frac{86+70+72+100+96+80+x}{7} = 85 ( multiply both sides by 7 )

504 + x = 595 ( subtract 504 from both sides )

x = 91

4 0
2 years ago
At 9 AM you have run 2 miles. At 9:24 AM you have run 5 miles. What is your running rate in minutes per mile
rosijanka [135]
I think it's 8 b/c 24 minutes divided by 3 miles is 8 minutes per mile.
4 0
3 years ago
1. Find the domain and range of the function<br> f(x)=√1-4x².
slamgirl [31]

f(x) =  \sqrt{1 - 4{ x}^{2} }

1 - 4x {}^{2}  \geqslant 0

-  \infty  \:  \:  \:  \:  \:  \:  \:  \:  - 0.5 \:  \:  \:  \:  \:  \:  \:  \:  \: 0.5 \:  \:  \:  \:  \:  \:  \: \:   \infty  \\   -  \:  \:  \:  \:  \:  \:  \:  \: \:  \:  \:  \:  \: \:0  \:  \: \:  \:  \:   +  \:  \:  \:  \:0 \:  \:  \:  \:  \:   -

domain \\ [ \: -0.5 \: , \: 0.5 \: ]

g(x) = 1 - 4x {}^{2}  \\ g'(x) =  - 8x \\ g'(x) = 0 \\ x = 0 \\ g(0) = 1 - 4(0) = 1 \\ maximum \:  = 1

range  \\ [ \: 0 \:  ,  \: 1 \: ]

5 0
2 years ago
Read 2 more answers
PLEASE LOOK AT PHOTO! WHOEVER ANSWERS CORRECTLY I WILL MARK BRAINIEST!!
pantera1 [17]

Answer:

N= -4

Step-by-step explanation:

Since mid-point of -13 and 3 is -4.

4 0
3 years ago
It takes Zack 15 minutes to walk 7 1/2 blocks to the swimming pool. At this rate, how many blocks can he walk in one minute?
Vinil7 [7]

Answer:

I think its 1/2 hope this helps

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
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