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murzikaleks [220]
3 years ago
9

Which expression is equivalent to (x+2)(3x-3)?

Mathematics
1 answer:
trapecia [35]3 years ago
8 0

Answer:D

Step-by-step explanation:Multiply x and 3x to get 3x^2 which is the first part, then multiply x and -3 to get -3x then and that to 2 times 3x which get you 3x bc -3x + 6x is 3x, and for the last part, multiply 2 and -3 to get -6 so your answer will be 3x^2+3x-6

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Please Help! I will give you the brainiest and a lot of points!
posledela

Answer:

1. 23/20 miles, 2. 7/20 miles

Step-by-step explanation:

1. Total distance = 3/4 + 2/5

= (3*5)/(4*5) + (2*4)/(5*4)

= 15/20 + 8/20

= 23/20

= 1 3/20 miles

2. Difference between walked miles and jogged miles = 3/4 - 2/5

= 15/20 - 8/20

= 7/20 miles

4 0
3 years ago
What is the area of this triangle 8m and 6m
mr_godi [17]
Area for triangles is 1/2b * h.

If 8m were the height, then the area is 24 sq m.

If 6m were the height, then the area is still 24 sq m.

The area is 24 sq m.

Hope this helps! Have a great day :)




4 0
3 years ago
A country is planning to decrease government spending in order to reduce the national debt. If the outlined changes are put into
SOVA2 [1]

<u>Answer</u>

Graph D represents the national debt of the country over the next years.

<u>Solution-</u>

The country's debt will decrease exponentially by one-third each year.

Current debt is $60 billion.

This problem can be treated as an exponential decay problem.

The general exponential decay function is,

y=a(r)^{-x}

Where,

a = initial value,

r = rate of change,

-ve sign of x represents the decrease in value of y as x increases.

Here, the rate of change is 3 as each year the debt becomes on third, and initial value of debt is $60, so

y=60(3)^{-x}

Plotting a graph taking number of year on x-axis and debt on y-axis, we can generate a graph for this function.

Putting different values of x, we can get the values of y. So the graph must have (0, 60), (1, 20), (2, 6.66), (3, 2.22), (4, 0.74), (5, 0.24) points on it.

Option B and C are incorrect, as they do not start from 60. (they don't have (0,60) on their curve)

Between option A and D, curve in D has all the points on it. So D is the correct graph.

5 0
3 years ago
Read 2 more answers
.
LUCKY_DIMON [66]

Answer: 7/24

Step-by-step explanation:

11/8 - 5/8=

= 11/8 - 5/8

= 11/12 + -5/8

= 22/24 + -15/24

= 22 + -15/<u>/24</u>

= 7/24

decimal form = 0.291667.

7 0
3 years ago
PLEASE help me. Brainliest!
fredd [130]

Answer:

Step-by-step explanation:

Last option is correct

x+x+x =3x

Red colour shows value is negative

-1-1 = -2

7 0
3 years ago
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