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Step2247 [10]
3 years ago
14

Simplify the expression below: 7 a2 + 10a - 3a – 2a2

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
6 0

Answer: ax(5a+7)

Step-by-step explanation:

I just know trust me

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Two turtles race. The speed of the first is 4 1/ 2 inches per minute and the speed of the other is 5 inches per minute How far a
RSB [31]

Answer:

(a) 1.5 inches

(b) 2.5 inches

(c) 5 inches

Step-by-step explanation:

speed of first turtle = 4 1/2 inches per  minute = 9/2 inches per minute

speed of the second turtle = 5inches per minute

distance = speed x time

(a) Distance traveled by first turtle in 3 minutes

s = 9/2 x 3 = 13.5 inches

distance traveled by second turtle in 3 minutes

s' = 5 x 3 = 15 inches

So, the gap is

s'- s = 15 - 13.5 = 1.5 inches

(b) Distance traveled by first turtle in 5 minutes

s = 9/2 x 5 = 22.5 inches

distance traveled by second turtle in 5 minutes

s' = 5 x 5 = 25 inches

So, the gap is

s'- s = 25 - 22.5 = 2.5 inches

(c) Distance traveled by first turtle in 10 minutes

s = 9/2 x 10 = 45 inches

distance traveled by second turtle in 10 minutes

s' = 5 x 10 = 50 inches

So, the gap is

s'- s = 50 - 45 = 5 inches

6 0
3 years ago
PLS HELP NEED ANSWERS QUICK WILL GIVE BRAINLIEST
yawa3891 [41]

Answer:

a- 10x^2 - 4x + 12

b- no, the first equation is −1/4⋅(5x^2+6x−24) and the second is -1/4⋅(10x^2+7x-24)

Step-by-step explanation:

m6th w6y

BRAINLIEST??

7 0
2 years ago
The total area of the figure below is (blank) units look at picture to solve
Tpy6a [65]
9x4=36 squared units
3 0
3 years ago
Here’s another one.. so sorry if this confused you.. <br><br> (Also I got this question wrong..)
Marat540 [252]

Answer:

hmmm did you try 14?

6 0
3 years ago
Read 2 more answers
Can anyone tell me how to solve this with step by step and show work
dlinn [17]
Answer is A and C
Imagine your square has an area of 64,
That means it’s sides are 8 x 8
So only rectangles that are 8inches x 8 inches or less will fit. A and C have these dimensions, they will fit. The other two will not. See my attachment, the green rectangle must fit inside the 8 x 8 square.

7 0
2 years ago
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