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2 years ago

Solve and show all work: (−3)^2=

Mathematics

1 answer:

Pavlova-9 [17]2 years ago

7 0

(-3)^2 = (-3)(-3) = 9

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Teresa bought 3boxes of chocolate each box has 9 pieces of chocolate inside teresa gave away 15 pieces of chocolate how many pie

lora16 [44]

Hey There!

3×9=27
27-15=12
Teresa has 12 pieces of Chocolate left

Hope This Helps!!!!

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3 years ago

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Suppose Lin labels the books at a constant speed of s books per minute. There can be several equations written that represent th

Alla [95]

Answer:

$S = \frac{b}{m}$

Step-by-step explanation:

Given

$Speed = s$

Required

Determine the expression for s

The speed is calculated as:

$Speed = \frac{Number\ of\ books}{Time}$

Substitute S for speed

$S= \frac{Number\ of\ books}{Time}$

Let the number of books be b and the time be m.

The expression becomes

$S = \frac{b}{m}$

Hence, the expression for the scenario is:

$S = \frac{b}{m}$

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2 years ago

carmela cut a cake into 12 equal-sized pieces. She ate 2/12 of the cake and her brother ate 3/12 of the cake.What fraction of th

Rzqust [24]

1/12 of the cake is left for carmela to eat

6 0

2 years ago

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What is the diameter of 10 inches

wolverine [178]

Answer:

Step-by-step explanation:

C = π x 10cm = 31.42cm (to 2 decimal places).

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2 years ago

A bag contains eight yellow marbles, nine green marbles, three purple marbles, and five red marbles. Two marbles are chosen from

Kryger [21]

Answer:

The expression would give the probability that one marble is yellow and the other marble is red is,

$P(Y\cdot R\ And\ R\cdot Y)=P(Y)P(R)+P(R)P(Y)$

Step-by-step explanation:

A bag contains eight yellow marbles, nine green marbles, three purple marbles, and five red marbles. So in total there are 25 marbles.

Hence,

Probability of getting yellow ball = $P(Y)=\dfrac{8}{25}$

Probability of getting red ball = $P(R)=\dfrac{5}{25}$

Probability that one marble is yellow and the other marble is red is,

$P(Y\cdot R\ And\ R\cdot Y)=P(Y)P(R)+P(R)P(Y)=\dfrac{8}{25}\cdot \dfrac{5}{25}+\dfrac{5}{25}\cdot \dfrac{8}{25}=0.128$

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2 years ago

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