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geniusboy [140]
3 years ago
9

Calculate 58^2-42^2 ??

Mathematics
2 answers:
sladkih [1.3K]3 years ago
6 0

Answer:

1600

Step-by-step explanation:

As you can see, this is a difference of squares. We can plug it into our differences of squares formula to get the answer:

(a+b)(a-b)

(58+42)(58-42)

(100)(16)

= 1600

Hope you learned something!

Simora [160]3 years ago
4 0

Answer: 1600

Step-by-step explanation: 58x58 - 42x42 = 1600

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frutty [35]

Answer: 3.65

Step-by-step explanation:

This question is asking basically what is 50% or 1/2 of 7.3.

Let's expand the number 7.3

Then, we end up getting 7.30.

We have to find 1/2 of 7.30.

\frac{1}{2} of 7.30 = 3.65

Hope this helps you!

5 0
3 years ago
What is the y intercept of the following equation -5y-3x=10 <br> It has to look something like this
dybincka [34]

Answer:

-2

Step-by-step explanation:

First, let's put this in slope-intercept form:

-5y-3x=10

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3 0
3 years ago
U.S. postal regulations require that a package can have a maximum combined length and girth (distance around) of 108 in. A shipp
Eduardwww [97]

Answer: The maximum length that can be used is 56 inches.

Step-by-step explanation:

Since we have given that

Width of package = 14 inch

Height of package = 12 inch

Let the length of package be 'l'.

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So, According to question, we get that

l+2(w+h)=108\\\\l+2(14+12)=108\\\\l+2\times 26=108\\\\l+52=108\\\\l=108-52\\\\l=56\ inches

Hence, the maximum length that can be used is 56 inches.

4 0
4 years ago
Please help this is urgent. | 2.Here are four expressions that have the value -1/2 : -1/4 + (-1/4), 1/2 - 1, -2 x 1/4, -1 ➗ 2 .
Nesterboy [21]

Answer:

Step-by-step explanation:

1 - 2 + 10 o lw. First find a common denominator. 3 * 5. After cross reducing, multiply across ... Divide the fraction to get a decimal answer. 21 into a an. Jinit. 5 = 1.25 ... 3 = -x +8. -8 = -8. = -5 = -X. =-1(-5) = -x (-1). = 5 = x. Set up a ratio, and cross ... Combine like terms, and solve for x. Divide both sides by 2. = x= 20. = 5-1​">4.

5 0
3 years ago
Read 2 more answers
Multiply mentally.<br> 4.2 × 200<br> HELP
Pani-rosa [81]
4.2 times 200 equals 840. Hope this helps
4 0
3 years ago
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