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tigry1 [53]
3 years ago
6

Please i need help with number 7 it is hard and its DUE NEXT HOUR show WORK . NO link

Mathematics
1 answer:
velikii [3]3 years ago
8 0

Answer:

Equation: 3(x+5)=60

Solution: 15 inches

Step-by-step explanation:

Let x represent the original side length of the equilateral triangle. Then, the new length of each side is x+5. Because a triangle has three sides, the new perimeter is 3(x+5), which is 60 inches. Dividing both sides by 3, we get that x+5=20, so x=15.

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Lady bird [3.3K]

Answer:

C

Step-by-step explanation:

Charlene has 8 more dollars so you would have to add it all together to get 86.

8 0
3 years ago
What is the distance between the two points (-8,-6) and (-2,4)?
MAVERICK [17]

Answer:

\sqrt{136} = 11.66 units

Step-by-step explanation:

distance between 2 points (a,b) and (c,d) = \sqrt{(a^{2}-c^{2} ) +(b^{2}-d^{2} ) }

= \sqrt{((-8)^{2}-(-2)^{2} ) + ((-6)^{2}-4^{2})   }

=\sqrt{136}

= 11.66 units

6 0
3 years ago
What equation has a solution of 2/3 for x
Ahat [919]

Answer:

D

Step-by-step explanation:

Hope this helped! Please tell me if I'm wrong!

6 0
2 years ago
The height of josie’s dog 11 1/4 inches to the nearest quarter inch and 11 inches to the nearest half inch.which measurement is
Lisa [10]
Both measurements are correct if you're rounding the dogs height.

But the more precise measurement would be 11 1/4.

Mainly because its a smaller fraction so it has more meaning to it instead of just plain 11

It would get more precise as the fraction got larger
For example.

Not very precise 
11, 11 1/2, 11 1/4,   

Precise
11 1/8, 11 1/16 

Hope this helps!
Brainliest is always appreciated if you feel its deserved!<span />
3 0
3 years ago
Find the missing side. Round to the nearest tenth. <br>A.7.4<br>B.4.4<br>C.6.4<br>D.5.4​
Nutka1998 [239]

Answer:

option D

Step-by-step explanation:

take 39 degree as reference angle

using cos rule

cos 39 = adjacent / hypotenuse

0.77 = x / 7

x = 7*0.77

x = 5.39

x = 5.4

4 0
3 years ago
Read 2 more answers
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