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irinina [24]
3 years ago
13

What is the simplified expression for the expression below?

Mathematics
2 answers:
Nataly [62]3 years ago
6 0

Answer:

( D) -4x-1

Step-by-step explanation:

-1(2x+3) -2(x-1)

-2x-3-2(x-1)

Answer -4x-1

Alex_Xolod [135]3 years ago
3 0
We have the expression -1(2x + 3) - 2(x - 1).
Distribute the -1 across the 2x and 3.

-1(2x + 3) - 2(x - 1) = -2x - 3 - 2(x - 1)

Now distribute the 2 across the x and -1.

-2x - 3 - 2(x - 1) = -2x - 3 - 2x + 2

Combine like terms.

-2x - 3 - 2x + 2 = -4x - 1

So, D -4x - 1 is the answer.

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In the right triangle shown, <B=60° and AB=18. How long is AC?​
Naily [24]

Answer:

18√3

Step-by-step explanation:

tan Ф = opposite/adjacent

tanФ = AB/AC

tan 60 = AC/AB

Tan 60 =√3 AB=18

√3=AC/18

AC=18√3

6 0
3 years ago
The eighth grade math teachers decided to
Lubov Fominskaja [6]

Answer:

this would be your answer not sure if you need to round 4.085 so pretty much the answer would be 3 because you have enough for about 4 and a half

Step-by-step explanation:

4 0
3 years ago
Bill has saved $825 from his last 8 paychecks. He saved either $75 or $150 a paycheck. Formulate and solve a system of equations
11Alexandr11 [23.1K]

Answer: 5 times

Step-by-step explanation:

Let the number of times that he saved $75 be x.

Let the number of times that he saved $150 be y.

Therefore, based on the information given in the question, we can form an equation which will be:

x + y = 8 ...... i

75x + 150y = 825 ....... ii

From equation I,

x + y = 8

y = 8 - x....... iiii

Put equation iii into ii and this will be:

75x + 150y = 825

75x + 150(8 - x) = 825

75x + 1200 - 150x = 825

75x - 150x = 825 - 1200

-75x = -375

x = 375/75

x = 5

He saved $75 5times from his paycheck.

4 0
3 years ago
Which choice is equivalent to the expression below when y  0?
olasank [31]
y\sqrt{y}+\sqrt{9y^3}-3y\sqrt{y}=y\sqrt{y}+\sqrt9\cdot\sqrt{y^2\cdot y}-3y\sqrt{y}\\\\=y\sqrt{y}+3y\sqrt{y}-3y\sqrt{y}=y\sqrt{y}\\\\Answer:C.
6 0
3 years ago
Need Help On This<br> simplify:<br> 9a(-4a^3 b^5)(-2a^4 bc^6)
aalyn [17]

Answer:

72a^8b^6c^6

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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