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Neko [114]
3 years ago
14

Someone please finish and explain this! i'm giving brainliest, tysm :)

Mathematics
1 answer:
posledela3 years ago
6 0

Answer:

Step-by-step explanation:

   Hours: 1      5         10      15      20         25

Minutes: 60   300   600   900   1,200     1,500

These show proportional relationship because they are all times hour by 60 minutes and the hours go by 5 hours, each.

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Hcf of 84 and 49 I'm so lazy
White raven [17]

Answer:

<h2>7</h2>

HCF of 49 and 84 is 7.

Step-by-step explanation:

mark me brainliest

3 0
2 years ago
All of the edges of a moving box are of equal length. If the surface area is 864 square inches, what is the length; in inches of
andreyandreev [35.5K]
Side makes 846 because side = area to the power of 2

6 0
3 years ago
Five cards (a hand) are dealt from a randomly shuffled deck of cards. For those of you that are not familiar with playing cards:
sp2606 [1]

Answer: 0.0004951

Step-by-step explanation:

Given

Five cards are from the deck

The total number of cards in the deck is 52

total spades card is 13

We have to choose 5 cards out of 13, this can be done in

\Rightarrow ^{13}C_5

The probability of choosing 5 spade cards is

\Rightarrow P=\dfrac{^{13}C_5}{^{52}C_5}\\\\\Rightarrow P=\dfrac{1287}{2598960}=0.0004951

4 0
3 years ago
1. Scientists randomly select ten groups from a population of men over 50 years old. They calculate the mean
Naya [18.7K]

Answer:

Step-by-step explanation:

Sampling Variability

Hope that helped! :)

5 0
3 years ago
Find the sum of -3x2 -4x+3 and 2x2-x+3
Alika [10]

Answer:

Assuming the 2 at the ends are the exponents,

the answer is -x^2-5x+6 (x^2+5x-6)

from here, it cannot be simplified more

Explanation --

Just add everything by putting the terms in parentheses and adding them.

Keep simplifying by putting the like terms together and adding/subtracting them.

At the end, you come up with -x^2-5x+6, so multiply -1 on the whole thing (by putting parentheses on its sides. This makes x positive. But they are the same thing, but this step is just for simplifying the end product a little more.

Hope this helps!! Have a nice day!

5 0
3 years ago
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