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3 years ago

X/4 - 3 = -7 what is x equal to?

Mathematics

1 answer:

yaroslaw [1]3 years ago

5 0

Answer:

x=-16

Step-by-step explanation:

x/4-3=-7

x/4=-4

x=-16

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Write the three numbers less then 40 that have 2 and 5 as factors

ozzi

No. which have factors 2 & 5 have 2 & 5 as their prime factor
therefore, No. are :
2*5 = 10
2*5*2 = 20
2*5*3 = 30

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3 years ago

Factor completely: 3x2 + 2x - 1

Alex777 [14]

$3x^{2}+2x-1=3x^{2}+3x-x-1= \\ \\ 3x(x+1)-(x+1)=(3x-1)(x+1)$

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"Associate with people who are likely to improve you."

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3 years ago

Read 2 more answers

Under his cell phone plan, Elijah pays a flat cost of $64.50 per month and $5 per gigabyte. He wants to keep his bill at $87.50

photoshop1234 [79]

Gotta go stingy by adding 64.5 us 87.5

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3 years ago

Please ASAP help please !!! Help me anyone

worty [1.4K]

difference of squares means that both the terms are square terms. (also there must be a - symbol)

for example

y^2 - 4

square root of y^2 is y

square root of 4 is +2 as well as -2

so you would factorise it like this:

(y+2)(y-2)

1. y^4 has a square root of y^2 as y^2 × y^2 is y^4.

however, -2 doesnt have a whole number square root so it is not a difference of squares.

2. 25 has a square root of 5. m^2 has a square root of m. n^4 has a square root of n^2. so this 25m^2n^4 is a square term.

1 has a square root of +1 and -1.

therefore, this one is a difference of squares. (5mn^2 +1) (5mn^2 -1)

3. p^8 has a square root of p^4. q^4 has a square root of +q^2 and -q^2)

so it is a difference of squares. (p^4+q^2)(p^4 -q^2)

4. 16x^2 is a square term as irs square root is 4x.

however, 24 is not a square term.

therefore, it is not a difference of squares.

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3 years ago

Suppose you have 34 bread slices and 24 cheese slices. how many cheese sandwiches can you make

Brums [2.3K]

17 if you maintain the ratio of 2:1 for bread and cheese, but you would get a remainder of 7 cheese slices. You could, however, cut up the extra pieces of cheese and add ~0.41 slices of cheese to each sandwich, which would melt into the rest of the cheese if you are grilling the sandwich. Otherwise, it's just an extra chunck, which is perfectly fine.

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3 years ago