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Alex73 [517]
3 years ago
14

What is 9m-28=2m explain

Mathematics
2 answers:
Ludmilka [50]3 years ago
6 0
Subtract 2m on both sides, which leaves you with 7m=-28, divde -28 with 7 and equals to -4
-4=M
loris [4]3 years ago
5 0
9m-28=2m
9m-28-2m=2m-2m
(9m-2m)-28=0
7m-28=0
7m-28+28=0+28
7m=28
(7m)/7 = 28/7
m=4
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Stephen biked 75% of 2 miles fred biked 2.5 miles how much farther did Fred bike than Stephen
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The answer is:

2.5 - (.75 • 2)
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3 years ago
Given sin theta = 2/5 and 0 theta 90 find sin 2 theta
Liono4ka [1.6K]

Given:  sin theta = 2/5.  This tells us that the lengths of the opp side and the hyp are 2 and 5 respectively.  The adj side is found using the Pyth. Thm.:  5^2-2^2= 25-4 = 21, so that the adj side is sqrt(21).

The double angle formula for the sine is sin 2theta = 2 sin theta *cos theta.

In this particular problem, the sine of 2theta is 2*(2/5)*[sqrt(21) / 5], or:

                                                                              (4/25)*sqrt(21).

6 0
3 years ago
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A + 3 + 2a = -1 + 3a + 4
Verdich [7]

Answer:The answer is Equal.

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8 0
3 years ago
Needed help for my math please
vesna_86 [32]

Answer:

see explanation

Step-by-step explanation:

(a)

\frac{a}{a} = 1 ( any value divided by itself = 1 )

(b)

\frac{a}{1} = a ( any value divide by 1 is the value itself )

(c)

\frac{a}{b} × \frac{c}{d} = \frac{ac}{bd}

The product of 2 fractions is the product of the numerators divided by the product of the denominators

(d)

\frac{a}{b} ÷ \frac{c}{d} = \frac{ad}{bc}

To divide 2 fractions, leave the first fraction, change division to multiplication and turn the second fraction upside down, that is

\frac{a}{b} ÷ \frac{c}{d} = \frac{a}{b} × \frac{d}{c} = \frac{ad}{bc}

(e)

\frac{a}{d} + \frac{b}{d} = \frac{a+b}{d}

Since the fractions have a like denominator, add the numerators leaving the denominator. This applies to subtraction also

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\frac{a}{d} - \frac{b}{d} = \frac{a-b}{d}

See explanation for part (e)




6 0
3 years ago
Which of these statements describe properties of parallelograms ? check all that apply
Stella [2.4K]

Answer:

Step-by-step explanation:

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If a parallelogram has 1 right angle, then it has 4 right angles.

The diagonals of a parallelogram bisect each other.

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