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Butoxors [25]
3 years ago
5

Which answer choice would it be and why

Mathematics
2 answers:
Anastaziya [24]3 years ago
7 0
3.2a-4.3b-(1.4a-3.9b+1.2) multiply contents of brackets on a negative sign. So, 3.2a-4.3b-1.4a+3.9b-1.2=1.8a-0.4b-1.2. So the answer will be A.
Lena [83]3 years ago
6 0
The correct answer is choice C
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a rocket was launched into the air from a platform above the ground. The height, in feet, of the rocket above the ground t secon
vova2212 [387]
For this case we have the following expression:
 h (t) = -16t ^ 2 + 64t + 80
 For t = 0 we have:
 h (0) = -16 (0) ^ 2 + 64 (0) + 80
 h (0) = -0 + 0 + 80
 h (0) = 80 feet
 Therefore the number 80 represents the initial height of the rocket
 Answer:
 
the 80 in the expression represented:
 
the initial height of the rocket
5 0
2 years ago
9 A rectangle of perimeter 42 cm is
lianna [129]

Answer:

The correct answer is = p = 15 and q = 6.

Step-by-step explanation:

Given:

Perimeter of rectangle = 42 cm

p - q = 9 cm

length = p

width = q

we know:

Perimeter of rectangle= 2(l+w)

solution:

42 = 2(P+q)

21= p+q

Difference of p and q = 9 cm.

Then, P+q=21 .... 1

P-q=9 ....2

Adding both 1 and 2

2P = 30

P= 15cm and

q = 15-9

= 6cm

5 0
3 years ago
Please help me do this 2 assignments (:
amm1812
4)120
5) -24a¹⁰
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8 0
3 years ago
Which of the following equations could represebt the point in the table select all the following
r-ruslan [8.4K]

Answer:

what are the equations

Step-by-step explanation:

you didnt show the equations

6 0
2 years ago
10x+8=3(x-2) 10x+8=3x-6
d1i1m1o1n [39]

Answer:

x = -2

Step-by-step explanation:

10x+8=3x-6

subtract 10x-3x

7x+8= -6

subtract -6-8

7x=-14

divide 7 into -14

x = -2

Hope this helps!

4 0
2 years ago
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