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2 years ago

13,14,15,16 please help me

Mathematics

1 answer:

shusha [124]2 years ago

6 0

Answer:

#14 (9+6)=(6+_)?

C.9 , becuase 9 plus 6 is 15, ANSWER C

answer A would be wrong becuase 15+6=21

answer B would be wrong becuase 8+6=14

answer D would be wrong because 7+6=13

Step-by-step explanation:

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If the distance between two objects is increased, the gravitational attraction between them will: increase decrease remain the s

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It decreases
The further two objects are, the gravitational attraction decreases and the closer two objects are, the gravitational attraction increases

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2 years ago

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Every day a kindergarten class chooses randomly one of the 50 state flags to hang on the wall, without regard to previous choice

Svet_ta [14]

Answer:

a.) P(x = X) = $\frac{1}{50}$

b.) $\frac{1}{50} \times\frac{1}{50} \times\frac{1}{50} = \frac{1}{125000}$

c.) 0.00118

Step-by-step explanation:

The sample space Ω = flags of all 50 states

a.) Any one of the flags is randomly chosen. Therefore we can write the

probability measure as P(x = X) = $\frac{1}{50}$ , for all the elements of the sample

space, that is for all x ∈ Ω.

b.) the probability that the class hangs Wisconsin's flag on Monday,

Michigan's flag on Tuesday, and California's flag on Wednesday

= $\frac{1}{50} \times\frac{1}{50} \times\frac{1}{50} = \frac{1}{125000}$

c.) the probability that Wisconsin's flag will be hung at least two of the three days

= Probability that Wisconsin's flag will be hung on two days + Probability that Wisconsin's flag will be hung on three days

= P(x = 2) + P(x = 3)

= $(\binom{3}{2}\times \frac{1}{50} \times \frac{1}{50}\times \frac{49}{50}) + (\binom{3}{3}\times \frac{1}{50} \times \frac{1}{50}\times \frac{1}{50})\\$

= $\frac{147}{125000} + \frac{1}{125000}$

= $\frac{148}{125000}$

= 0.00118

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2 years ago

Raina received a $90 gift card for a coffee store. She used it in buying some coffee that's cost $7.38 per pound. After buying t

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Answer:

5 lbs

Step-by-step explanation:

90 - 53.10 = 36.90

She spent $36.90 on coffee. Since it cost $7.38 per pound, we can divide the total cost by 7.38 to figure out how many pounds she bought:

36.90 / 7.38 = 5

Raina bought 5 pounds of coffee.

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2 years ago

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VMariaS [17]

Answer:

sales tax = $5.54

Step-by-step explanation:

sales tax = rate × original price

here rate = 8.8 %

original price = $ 63

sales tax = 8.8 % × 63

= $\frac{8.8}{100}$ × 63

= $\frac{88}{1000}$ × 63

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2 years ago

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Solve the following proportion: 8/r = 18/12

Rainbow [258]

Answer:

r=16/3 if u want me to explain i can

Step-by-step explanation:

Simplify 18/12 to 3/2

8/2=3/2

Multiply both sides by r.

18=3/2r

Simplify 3/2r to 3r/2

8=3/2r

Multiply both sides by 2.

8×2=3r

Simplify 8 x 2 to 16

16=3r

Divide both sides by 3

so the answer is r=16/3

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2 years ago