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nordsb [41]
4 years ago
10

Plz plz plz plz plz plz plz help help help me plz help me I’m begging you plz help me plz

Mathematics
2 answers:
RUDIKE [14]4 years ago
6 0

C.

A doesn't work because x + x + x = 3x, not x^3.

B doesn't work because 14x + 10 - 2x has like terms, 14x and -2x can be combined, bit when you do so you get 14x - 2x, or 12x + 10. (So not 16x + 10)

D doesn't work because 12x^2 + 5x + 10 doesn't simplify; it can only be factored, and you cannot combine 12x^2 and 5x because their variables have different powers.

C, however, works fine. All they did is factor out a 3; if you distribute that 3 again, you get 12x + 16x back, so the two are equal.

ipn [44]4 years ago
5 0

Answer:

<u><em>Explanation</em></u><em>:</em> This question is most likely a guess and check question!

<u><em>GUESS AND CHECK:</em></u>

A) x+x+x and x³

Exponents are usually multiplication put the operation here is addition so it's not A.

B) 14x+10-2x and 16x+10

For 14x+10-2x, 14x and 2x can be combined so when they are it would be 12x. Then you add 10 which is 12x+10 which is not equivalent to 16x+10

C) 12x+16x and 4(3x+4x)

12x+16x is 28x. For 4(3x+4x) , you have to distribute which would become 12x+16x which is also 28x. Therefore, 12x+16x and 4(3x+4x) are equivalent.

<u><em>Answer:</em></u><em> </em><em>C</em>

<em />

<u><em>PLZ:</em></u><em> </em>Rate this 5 stars and I hope this was helpful

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Construct a right angled triangle XYZ with 90 at angle Y, YZ=7.5cm and XY =6cm​
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Answer:

1 draw a line of 7.5 cm YZ by scale

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4 join X and Z by scale

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3 years ago
With a short time remaining in the​ day, a delivery driver has time to make deliveries at 4 locations among the 7 locations rema
omeli [17]

Answer:

35 different routes

Step-by-step explanation:

The problem of how many different routes are possible if a driver wants to make deliveries at 4 locations among 7 locations is a combination problem.

Combination problems are usually selection problems, of all or part of a set of options, without considering the order in which options are selected.

The number of combinations of n objects taken r at a time is: ⁿCᵣ

So, the number of ways the driver can make deliveries at 4 locations out of 7 locations of given by

⁷C₄ = 35 different ways.

Hence, 35 different routes are possible to make deliveries at 4 locations out of 7 locations.

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3 0
4 years ago
In one popular game, five number cubes are rolled at the same time. if the number cubes are kept separate, what is the total pos
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3 0
3 years ago
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4 years ago
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Suppose you are testing the null hypothesis that a population mean is less than or equal to 46, against the alternative hypothes
PolarNik [594]

Answer:

Option A) 2.5

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 46

Sample mean, \bar{x} = 50

Sample size, n = 25

Alpha, α = 0.05

Population standard deviation, σ = 8

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Putting all the values, we have

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Option A) 2.5

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4 years ago
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