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4 years ago

3x² + 2x + 2 + 4x2 + 5 simplify

Mathematics

2 answers:

LuckyWell [14K]4 years ago

7 0

Answer:

smhhh

Step-by-step explanation:

Y_Kistochka [10]4 years ago

6 0

Answer:

3x^2+2x+15

Step-by-step explanation:

3x^2+2x+2+(4x2)+5

use pemdas

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a pipeline is laid at a rate of 1/8 mile per day.How many miles of line would be completed in 29 1/2 days

Setler [38]

Answer:

In 29 1/2 days, the total pipe laid is $(\frac{59}{16})$ mile.

Step-by-step explanation:

The length of pipe laid in 1 day = 1/8 mile

So, the length of pipe laid in half day = half of (1/8 mile)

= $\frac{1}{2} \times \frac{1}{8} = \frac{1}{16} \textrm{mile}$

Now, 29 1/2 days on simplification means 29 and half day.

So, length of pipe in 29 days = $29 \times \frac{1}{8} = \frac{29}{8}$ mile

Now adding the length laid in half day = $\frac{29}{8} + \frac{1}{16} = \frac{29 (2) + 1}{16} = \frac{59}{16} \textrm{mile}$

So, in 29 1/2 days, the total pipe laid is $(\frac{59}{16})$ mile.

8 0

4 years ago

Jill traveled to Canada and bought a new lamp for $460 Canadian dollars. In US dollars (to the nearest cent) this is equivalent

blsea [12.9K]

The Canadian dollar is .72 of a American dollar so the answer has to be B.

8 0

3 years ago

Y=2x-3 what is the slope and what is the y-intercept

Ipatiy [6.2K]

Answer: THe slope is 2 and y intercept is -3

Step-by-step explanation:

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3 years ago

Read 2 more answers

Help thanksSSSSSSSSSS

Setler79 [48]

Answer:

$\boxed{\sf{x=24}}$

Step-by-step explanation:

<u>GIVEN:
</u>

To find the missing number in the proportion, you have to isolate it the term of x from one side of the equation.

$\sf{\dfrac{8}{7}=\dfrac{x}{21} }$

First, thing you do is switch sides.

$\sf{\dfrac{x}{21}=\dfrac{8}{7} }$

Multiply by 21 from both sides.

$\Longrightarrow: \sf{\dfrac{21x}{21}=\dfrac{8*21}{7} }$

Solve.

Multiply the numbers from left to right.

Use the order of operations.

PEMDAS stands for:

Parentheses
Exponents
Multiply
Divide
Add
Subtract

$\Longrightarrow: \sf{\dfrac{8*21}{7}=\dfrac{168}{7}=24 }$

$\Longrightarrow: \boxed{\sf{x=24}}$

<u>Therefore, the final answer is x=24.</u>

I hope this helps. Let me know if you have any questions.

3 0

2 years ago

I don't know how to do this

AlladinOne [14]

2(6-7x) = -8(x+6)

multiply the numbers inside the parenthesis with the numbers outside of them:

12 -14x = -8x-48

add 12 to each side:

-14x =-8x -36

add 8x to both sides

-6x = -36

divide both sides by-6

x = 6

8 0

3 years ago

3x² + 2x + 2 + 4x2 + 5 simplify​

3x² + 2x + 2 + 4x2 + 5 simplify