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Brrunno [24]
2 years ago
6

Help i dont have any check answer anymore

Mathematics
1 answer:
Sergio039 [100]2 years ago
6 0

Answer:

10 maybe

Step-by-step explanation:

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A construction crew has just finished building a road. The road is 8 2/5 kilometers long. If the crew worked for 6 days, how man
Misha Larkins [42]
Answer: 1.4 or 1 2/5

Reason: if you were to do 8.4÷6 you would get 1.4 and to check your work you can do 1.4×6 which is 8.4 or 8 2/5
7 0
3 years ago
. Write the quadratic equation in factored form. Be sure to write the entire equation. x^2 - 5x - 24 = 0
Viefleur [7K]

Answer:

(x+3)(x-8)=0

Step-by-step explanation:

First, write out the equation as it is given in the problem:

x^{2}-5x-24=0

Now, you have to split up the "-5x" to get to factored form.  The way to do this is to look for <em>the factors of "a" times "c" that sum to "b"</em>:

So, in this problem, a=1, b=-5, and c=-24.  So, find the factors of (1*-24) that sum to (-5). To clarify, (1*-24)=-24, so you have to find factorsof -24 that sum to -5.

Let's write out a list of factors.

1,-24---1+-24=-23no\\-1,24---1+24=23no\\2,-12---2+-12=-10no\\-2,12----2+12=10no\\3,-8---3+-8=-5yes

Therefore, our two factors will be 3x and -8x.

Now, let's rewrite our equation with these new factors in place of the -5x:

x^{2}-5x-24=0\\x^{2}+3x-8x-24=0

Next, find your factored expressions:

x^{2}+3x-8x-24=0\\(x^{2}+3x)(-8x-24)=0\\

Take the GCF from each set of parenthesis:

x(x+3)-8(x+3)=0

The GCFs that you took out will become your second in the set for factorde form.  It will be written as "x-8".

Therefore, your equation in factored form will be:

(x+3)(x-8)=0

3 0
3 years ago
Identify the domain and range of the function:
Allisa [31]
I think the domain is (0,2,4,8) and the range is (4,6 and 8) also your learning this in high school?
8 0
3 years ago
if something is on sale for 35% off the original price and the sale price is 2.73, what is the original price?
Troyanec [42]
$4.20, 2.73/65 >>> .042 x 100 >>> answer.

Bonus:
To check it you'd do 4.20/20, then multiply .21 by 13 (65% divided into 5% portions = 13 portions) and your answer will be $2.73.
5 0
4 years ago
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Express the perimeter perimeter p of a rectangle as a function of the width w if the length of the rectangle is twice its width.
Salsk061 [2.6K]
P=2w+2l
l=2*w
p=2w+2*2w
p=2w+4w
p=6*w
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3 years ago
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