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lukranit [14]
3 years ago
14

Which expression is equivalent to 5 ( 3x + 3 ) − 7x

Mathematics
2 answers:
Hitman42 [59]3 years ago
7 0

the answer is letter A bro

Murljashka [212]3 years ago
3 0

Answer:

The first Option is equivalent to the equation.

Step-by-step explanation:

1) Expand by distributing term.

15x + 15 - 7x

2) Collect like terms.

(15x - 7x) + 15

3) Simplify.

8x + 15

<u>H</u><u>e</u><u>n</u><u>c</u><u>e</u><u>,</u><u> </u><u>8x</u><u> </u><u>+</u><u> </u><u>15</u><u> </u><u>is</u><u> </u><u>equivalent</u><u> </u><u>to</u><u> </u><u>this</u><u> </u><u>equation</u><u>. </u>

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Evaluate ab for a =2 3/4 and b = 4/5
Oduvanchick [21]

Answer:

11/5

Step-by-step explanation:

2 3/4 = 11/4 as a mixed number

a x b = 11             4

          -----   x     -----

            4             5

fours cancel out

11/5 is your final answer :D

4 0
4 years ago
Read 2 more answers
The difference of two numbers is 1. What is the smallest possible value for the sum of their squares?​
Stella [2.4K]
X= 1 number
Y= a number that is 1 less than x
Y= x-1

The sum of squares=

X^2 + (x-1)^2 = x^2 + x^2 - 2x + 1
X^2 + x^2 - 2x + 1 = 2x^2 - 2x + 1

Assuming that integers = numbers. We could try some values

When x = 0, the sum of squares = 1
When x = -1, the sum of squares = 4
When x = 1, the sum of squares = 1

If you put this into a graph, it is a parabola and we see that the minimum value hits at x = 1/2.

To check this value:

2x^2 - 2x + 1 = 2·(1/4) - 2·(1/2) + 1
2·(1/4) - 2·(1/2) + 1 = 1/2 - 1 + 1
1/2 - 1 + 1 = 1/2

When you look back at the question, it asks for 2 answers

X= 1/2
X-1 = -1/2

What is the sum of their squares?

1/4 + 1/4 = 1/2

That fits with graph too.

Answers: 1/2 and -1/2

Hope this helps!!
5 0
4 years ago
Brady tosses a coin three times. Each toss could be heads or tails. Which
Step2247 [10]

Answer:

Option B

Step-by-step explanation:

HHH → All heads

HHT → Two heads + one tail

HTH → Two heads + one tail

HTT → Two tails + one head

THH → One tail + two heads

THT → Two tails + one head

TTH → Two tails + one head

TTT → All tails

Therefore, At least two tails means → Sample space outcome with two tails Or all tails

Therefore, from the given options HTT is having two tails.

Option B is the correct option.

7 0
3 years ago
Read 2 more answers
Volume= 250ft diameter is 8ft what is the height
jek_recluse [69]

Answer:

49.9348634

Step-by-step explanation:

pi r squared is area of a circle

4ft squared = 16ft

16 pi is area of circle face

250 / 16pi = 49.9348634 (round to whatever you need)

7 0
3 years ago
Elizabeth is mowing lawns in her neighborhood to earn spending money. She can mow about 1/3 of a lawn in 20 minutes. What is her
Savatey [412]
What i think the answer is 6.66 because u multiply 1/3 by 20 

8 0
4 years ago
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