4 years ago

(3/4)3 write as improper fraction and mixed number

Mathematics

1 answer:

matrenka [14]4 years ago

5 0

15/4, 3 3/4, and 3.75

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What’s the 2+2-7 pls I help thx

insens350 [35]

Answer:

-3

Step-by-step explanation:

2 + 2 - 7

\ /

4 - 7

\ /

-3

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3 years ago

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Which of these is NOT an attribute of a rhombus?

timofeeve [1]

Answer: B

Step-by-step explanation: because it is rhombus.

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3 years ago

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Find the unit rate. 21 3/4 meters in 2 1/2 hours

anyanavicka [17]

(21 3/4) / (2 1/2) =
(87/4) / (5/2) =
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4 years ago

Solve for x in the triangle<br> A 25.6<br> B 27.8<br> C 45.6<br> D 64.4

labwork [276]

Answer:

The measure of angle x is $64.4\°$

Step-by-step explanation:

To find the measure of angle X, apply the law of cosines

The law of cosines states that

$c^{2}=a^{2}+b^{2}-2(a)(b)cos(C)$

In this problem we have

$a=19\ cm$

$b=25\ cm$

$c=24\ cm$

$C=x\°$

substitute

$24^{2}=19^{2}+25^{2}-2(19)(25)cos(C)$

$576=986-950cos(C)$

$cos(C)=(986-576)/950$

$C=arccos[(986-576)/950]=64.4\°$

Therefore

The measure of angle x is $64.4\°$

7 0

4 years ago

Subtract -9x^2+2x+5from 8x^2+8x +8.

pav-90 [236]

So 8x^2+8x+8-(-9x^2+2x+5) is going to be
8x^2+9x^2+8x-2x+8-5
Giving you

17x^2+6x+3

8 0

4 years ago