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Schach [20]
3 years ago
11

ASAP please help me I need this quick The question and answers are in the picture

Mathematics
1 answer:
7nadin3 [17]3 years ago
5 0
Thé correct answer is the third one

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help finding the perimter of 78.4 inches whats the length of each side and show me how to work the promblem
LuckyWell [14K]
A square has four even sides and the perimeter is equal to the sum of all of the sides.
P=s+s+s+s=4s
So we can evaluate the equation for P and then solve for s.
78.4=4s \\  \frac{78.4}{4} =s \\ s=19.6in
6 0
3 years ago
7/13 + (-4/13) the answer has to be in simplest form.
Digiron [165]

Answer:

short form:0.23 Long Form:0.23076923076

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Plz help im cheeks at math
Vera_Pavlovna [14]

We have an exponential with a fractional base and a positive exponent, and a positive sign at front. Each time we multiply a fraction between zero and one by itself it gets smaller.  So as x increases we'll go to zero.   As x decreases it goes to positive infinity, as negative powers are the reciprocals of positive power.

The left end approaches positive infinity and the right end approaches zero.

6 0
3 years ago
One day a store sold 21 sweatshirts. white ones cost​ $9.95 and yellow ones cost $ 11.50. in​ all, ​$235.30 worth of sweatshirts
FromTheMoon [43]
For this problem you have yo set up two equations.

White shirts = w Yellow shirts = y

1st: w + y = 21
2nd: 9.95w + 11.50y = 235.30

Now we're going to do system of equations using substitution.

If w + y = 21, then y = 21 - w
If y = 21 - w, then you can substitute this in the second equation for y.

9.95w + 11.50(21 - w) = 235.30
9.95w + 241.5 - 11.50w = 235.30
-1.55w + 241.5 = 235.30
-1.55w = -6.2
w = 4, so 4 whites shirt were sold.

Now I'm finding out how many yellow shirts were sold using one of the two equations at the top.

w + y = 21
4 + y = 21
y = 17

So 17 yellow shirts were sold and 4 white shirts were sold.
5 0
3 years ago
Find the sum of 2x 2 + 3x - 4, 8 - 3x, and -5x 2 + 2
Sloan [31]
-3x²-2 .................
4 0
3 years ago
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