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Mathematics

1 answer:

sp2606 [1]3 years ago

6 0

A. Total of Rochelle's account is $100 so you subtract 100-25 and that will be $75 is change.
B. Total change in the amount of money in Denae's account is 200-5 and that will be $195.
C. So the Rochelle's is $75 and Denae's is $195 so Rochelle's is smallest.

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A.1 B. 2/3 C.5/6 D.1/3

RideAnS [48]

Answer:

Step-by-step explanation:

There are 6 values on the faces of a standard number cube, that is

1, 2, 3, 4, 5, 6

There are 4 values > 2, that is 3, 4, 5, 6

P( number > 2 ) = $\frac{4}{6}$ = $\frac{2}{3}$ → B

8 0

3 years ago

Read 2 more answers

In the figure, use similar triangles and the fact that corresponding sides are proportional to find the missing length.

Phoenix [80]

Answer:

The missing length, x, is equal to 7 m.

Explanation:

In the figure, the two triangles are similar because they show two pairs of congruent angles and one pair of different sides.

The two upper vertices are marked each with a line which indicates that they are congruent, i.e. they have the same measure.

Also, the small squares shown in each of the bases indicate that those two angles are right, i.e. they measure 90°.

Since the two sides adjacent to the right angles have different lengths, the triangles are not congruent but similar.

By similarity, you can state that the corresponding parts keep the same ratio. Thus:

x / 8m = 21m / 24m

x = 8m × 21 m / 24 m (muliply both sides by 8m)

x = 21 m / 3 (simplify dividing numerator and denominator by 8m)

x = 7 m (simplify dividing by 3)

Answer x = 7 m

5 0

4 years ago

PLEASE HELP!! IM ON THE LAST QUESTIONNNN ( 30 points!)

dusya [7]

$~~~~~\pi r^2 = 513\\\\ \implies r = \sqrt{\dfrac{513}{\pi}}\\\\ \implies r= \sqrt{\dfrac{513}{3.14}}\\\\\implies r=12.78~ \text cm.}\\\\\text{Hence the radius is 12.78 cm.}$