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ehidna [41]
3 years ago
7

Suppose x = 7 is a solution to the equation 4x − 2(x + a) = 8. Find the value of a that makes the equation true. A: 2 B: 3 C: -2

5 D: 6
Mathematics
1 answer:
notsponge [240]3 years ago
7 0

if x =7 then plug in 7 for x

4(7) - 2((7)+a) = 8

28 - 14 -2a = 8

14 - 2a = 8

-2a = -6

a = 3

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2x^5-3x^4-5x^3-15x^2-207x+108<br>zeros: 3i<br>find the remaing zeros
Veseljchak [2.6K]
The real solutions are {x=-3, x= \frac{1}{2} , x=4}.

The imaginary solutions are {x=-3i, x=3i}.
4 0
3 years ago
45% of the load is 27 tonnes. Find the full load.
VashaNatasha [74]

the full load is 60 tonnes

5 0
3 years ago
Hey guys I need some help with #7 so if anyone could help that would be great THANK YOU!!
iVinArrow [24]

The average rate of change obtained from the ratio of change in y to the change in x is 27

The average rate of change can be obtained using the relation :

Rate of change = (y2 - y1) ÷ (x2 - x1)

at; x1 = -3

y1 can be calculated from the function ;

y1= 3(-3³)-1

y1=-82

At ; x2 = 3

y2 can be calculated from the function ;

y2 = 3(3³)-1

y2=80

The rate of change can be calculated thus : (y2 - y1) ÷ (x2 - x1)

[80-(-82)]/[3-(-6])

162/6

27

Learn more about the average rate of change here:

brainly.com/question/18550782

#SPJ1

8 0
1 year ago
How to find HCF of 16 24 and 36 by long division method​
oee [108]

Answer:

GCF=4

Step-by-step explanation:

16/4=4

24/4=6

36/4=9

7 0
3 years ago
Please help quick I will give brainliest :(
Flura [38]

Answer:

r=4 d=8 a = 16π c = 8π

d=6 r=3 a=9π c=6π

a=36π r=6 d=12 c=12π

c=18π r=9 d=18 a=81π

Step-by-step explanation:

hope this helps (:

6 0
3 years ago
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