3 years ago

ILL BRAINLIEST YOU PLEASE HELP ME

Mathematics

1 answer:

snow_tiger [21]3 years ago

5 0

Answer:

blank 2 is answer c. sorry that is all I remember from geometry!

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Which expression has a value of 8, using only four 4s and any of the following: + , – , • , ÷, exponents, and/or parentheses?

nekit [7.7K]

PEMDAS
A. 4*4-4-4=16-4-4=12-4=8 true
B. 4*4*4-4=16*4-4=64-4=60, not 8 false
C. 4*4+4-4=16+0=16, not 8, incorect
D. 4(4+4)-4=4(8)-4=32-4=28, not 8 incorrect

A

4 0

3 years ago

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You are competing in a race. The table shows the times from last year's race you want your time to be last year's median time wi

aleksandr82 [10.1K]

Answer:

$27\leq x \leq37$

Step-by-step explanation:

Let's arrange the numbers from least to greatest:

20, 25, 27, 28, 31, 32, 32, 38, 40, 40, 42, 48

The median is the "middle" number when arranged from least to greatest.

There are 12 numbers, so the middle number would be "average" of 6th and 7th terms.

6th term = 32

7th term = 32

Average = (32+32)/2 = 32

Hence, median = 32

Absolute deviation of 5 minutes means 5 minutes less or greater than the median, 32.

So, 32 - 5 = 27 & 32 + 5 = 37

Hence $27\leq x \leq37$

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3 years ago

All the edges of cube add to a total length of 48 cm. What is the area of one face of the cube?

raketka [301]

Answer:

Step-by-step explanation:

A cube has 12 edges.

Therefore, length of each edge

= 48/12

= 4 cm

Area of face = edge x edge

= 4 x 4

= <u>16 cm²</u>

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2 years ago

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Two-thirds a number plus 4 is 7

julsineya [31]

The answer is 2/3n+4=7

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4 years ago

100 POINTS!!!!!!! PLZ HELP!!!

Marysya12 [62]

Answer:

A) I agree

B)SSS because all three sides would be congruent to the sides from the other triangle

Step-by-step explanation:

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3 years ago