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nalin [4]
3 years ago
10

Please help!!! I've been trying to figure this out all day!

Mathematics
1 answer:
MrRa [10]3 years ago
3 0

Answer:

.55(220-a) + .90(220-a)

Step-by-step explanation:

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Hi i need help on this
Allushta [10]
Answer
X=125
Solution
25x 4/25>25x5
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3 years ago
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You are helping your dad build a rectangular dog park. The length of the dog park in feet can be represented by 8 + 2 and the wi
Goryan [66]

Answer:

74 feet and 6 feet

Step-by-step explanation:

Mentioned that

The  Length of the dog park is = (8x + 2)............(i)

And,

The Width of the park is = (2x -12)..................(ii)

Perimeter = 160 feet

Now here we use the perimeter formula which is

Perimeter is

= 2 (length + width)

160 = 2 (8x + 2 + 2x - 12)

160 = 2 (10x - 10)

160 = 20x - 20

180 = 20x

x = 9

Now put the x value into the equation 1 and equaton 2

For the equaton 1, the length us

= 8x + 2

= 8(9) + 2

= 74 feet

And, the width is

= 2x - 12

= 2(9) - 12

= 18 - 12

= 6 feet

5 0
3 years ago
Select<br> 22/15<br><br> as a decimal.<br> A.1.45<br><br> B.22.13<br> C.3.53<br><br> D.3.26
astra-53 [7]

Answer:

A. 1.45

Step-by-step explanation:

To get a decimal from a fraction, divide the numerator by the denominator.

22 divided by 15 ->    1.45

4 0
3 years ago
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X^3-3x^2-10x+24 rational zero theorem
kvasek [131]
The rational zero theorem looks at the number of sign changes in the equation's terms when x is evaluated with a positive or negative number. In your problem, if we insert a positive value for x:
1st term stays +, 2nd term stays  -, 3rd term stays -, last term stays +.
Read from left to right and determine the number of sign changes:
+ - - + [there is a change from + to -, no change from - to -, and a change from - to +] Therefore 2 sign changes. There can be two positive rational zeros, or zero rational zeros [It's always the number of sign changes, and then every other number less than the number of sign changes, and zero]

Let's now do it for a negative x:
1st term becomes -, 2nd term stays -, 3rd term becomes +, last term stays +
- - + + [there is no sign change from - to -, one change from - to +, no change from + to +] Therefore one sign change. There can be one negative rational zero, or zero rational zeros.
This is a difficult concept to type out in a screen box. Please post me a comment if you need additional clarification!
4 0
3 years ago
Can you help me on my homework
marshall27 [118]
The answer is #1. The mean of Team A is less than the mean of Team B, and the standard deviation of Team A is greater than the standard deviation of Team B.
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3 years ago
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