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12345 [234]
3 years ago
8

Help me, please! I will mark the brainiest! ANY OFF TOPIC ANSWER WILL BE DELETED!

Mathematics
1 answer:
Lynna [10]3 years ago
4 0
The anwser is 3x-5 yuhhhhhhhhhhhhhhhhh
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A rectangle’s base is 6 cm longer than its height. The rectangle’s area is 135 cm2. Find this rectangle’s dimensions. You must i
il63 [147K]

Area of a rectangle  =  length x height

Area = 135

Height = X

Lenght = x +6

135 = x * x+6

Simplify:

135 = x^2 +6x

Subtract 135 from both sides:

x^2 + 6x - 135 = 0

Solve:

2 numbers when added need to equal 6 and when multiplied equal -135

x = 9 and x = -15

The height can't be a negative number so the height is 9

Length =  9 +6 = 15

Height = 9cm, Length = 15 cm

6 0
3 years ago
Write an equation of the line that passes through the point(-6,-9) with slope -5
LUCKY_DIMON [66]

Answer:

  y = -5(x +6) -9

Step-by-step explanation:

The point-slope form of the equation for a line can be written as ...

  y = m(x -h) +k

for a line with slope m through point (h, k).

You have m=-5 and (h, k) = (-6, -9). Filling in these values gives ...

  y = -5(x -(-6)) -9

Simplifying a bit, you get ...

  y = -5(x +6) -9

4 0
3 years ago
If you roll two four-sided dice numbered 1, 2, 3, and 4), what is the probability that the sum of the dice is 7? Enter a fractio
Anna [14]
The probability that the sum of the dice is 7 is 1/2 because there are only three combinations that result in the sum of 7: (1,6)(2,5) and (3,4). But there are 6 possible outcomes( this is if you don’t add reverse combinations such as 1,6 and 6,1) so the probability would be 3/6 or 1/2
8 0
3 years ago
How many pieces of gum are in 4 packages of gum?<br> 60<br> 75<br> 90<br> 180
soldi70 [24.7K]

Answer:

well that depends on how many pieces of gum are in one pack, once you have that info multiply it by 4.

Step-by-step explanation:

7 0
2 years ago
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Floats in a parade travel down the 5.5 mile long street at a rate of 2.5 miles per hour. How long will it take the floats to com
Rina8888 [55]
It should take 2.2 hours, since 5.5 / 2.5 = 2.2.
6 0
3 years ago
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