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sukhopar [10]
3 years ago
8

An equilateral triangle has a perimeter of 12 x + 18 units. Which expression can be used to show the length of one side of the t

riangle?
6 (2 x + 3): Each side length is 2 x + 3 units.
3 (4 x + 6): Each side length is 4 x + 6 units.
2 (6 x + 9): Each side length is 6 x + 9 units.
x (12 + 18): Each side length is 12 + 18 units.
Mathematics
1 answer:
vesna_86 [32]3 years ago
4 0
Kskdkdkkddkkdkdkdkdkdkkdd
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Please please answer this correctly
IRINA_888 [86]

Answer:

d= 71518 kilometers

Explanation:

A diameter is twice the radius. Here, we can use the formula d=2r (d=diameter r=radius)

If we substitute the formula, we have

d=2(35795)

After multiplying:

d=71518 kilometers

8 0
3 years ago
5+5 What is it........................................
Elza [17]

Answer:

I dont even want to answer this cause I know its a joke

Step-by-step explanation:

5+5=10

7 0
2 years ago
Solve the equation 4s2+32s=60 by completing the square
lord [1]

Answer:

s = -4 ± √31

Step-by-step explanation:

Given 4s^{2} + 32s = 60

divide by 4 throughout

s^{2}  + 8s = 15\\s^{2} + 8s + (\frac{8}{2}) ^{2}  = 15 + (\frac{8}{2}) ^{2}

 (s + 4)^{2}  = 31\\s + 4 = \sqrt{31}

s = -4 ± √31

7 0
3 years ago
Solve for x: 16^2x + 1 = 128<br><br> 38<br><br> 83<br><br> 4<br><br> 43
qaws [65]

Answer:

16^{2x}+1=128

x=4

5 0
3 years ago
A collection of quarters and dimes is worth $12.40. There are 67 coins in all.
padilas [110]
Let:
x= quarters
y= dimes


x+y=67
and
.25x+.10y=12.40

x=67-y

.25(67-y)+.10y=12.40
16.75-.25y+10y=12.40
16.75-.15y=12.40
Lets rearrange this:
-.15y+16.75=12.40
        -16.75    -16.75
-.15y=-4.35
the negatives cancel out
.<u>15y</u>=<u>4.35
</u>.15<em /><em>     <u /></em>.15
y=29

Back to the original x=67-y
x=67-29
x=38

So,
x=38
y=29
<em />
5 0
3 years ago
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