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Basile [38]
2 years ago
10

Simplify 12x^2 + 4x – 3x^2 + 8 + 10x + 3 by combining like terms.

Mathematics
1 answer:
Cerrena [4.2K]2 years ago
3 0
<span>12x2 + 4x – 3x2 + 8 + 10x + 3
= 9x2+14x+11 </span>
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The sign on a clearance rack tells customers the price is 1/2 the lowest marked price. If an item is marked $9.98, how much will
Artyom0805 [142]

Answer:

4.99

Step-by-step explanation:

9.98 divide by 2

3 0
3 years ago
A 15 ft ladder makes a 52° angle with the ground. How far will the top of the ladder be above the ground.
levacccp [35]

Answer:

11.820 ft

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you that ...

Sin = Opposite/Hypotenuse

The length of the ladder is the hypotenuse of a right triangle with 52° as the base angle. The side opposite is the height up the building where the top of the ladder rests. So, you have the relation ...

sin(52°) = height/(15 ft)

Multiplying by the denominator gives you ...

height = (15 ft)·sin(52°) ≈ 11.820 ft

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You may need to round this number appropriately.

5 0
3 years ago
Help with both questions offering 10 points
Alexandra [31]

Answer:

\:\mathrm{First\: problem:\:}-2,\\\:\mathrm{Second\: problem:\: }-3

Step-by-step explanation:

The slope of a line passing through points (x_1, y_1) and (x_2, y_2) is:

m=\frac{\Delta y}{\Delta x}=\frac{y_2-y_1}{x_2-x_1}

Plugging in any two points in the table we have:

<u>First problem:</u>

<u />m=\frac{1-5}{2-0}=\frac{-4}{2}=\fbox{$-2$}<u />

<u>Second problem:</u>

<u />m=\frac{-1-5}{2-0}=\frac{-6}{2}=\fbox{$-3$}<u />

8 0
3 years ago
Read 2 more answers
4+b = -30<br> What is the value of X?<br><br> X= -34<br> X= 7.5 <br> X=120<br> X= -26
Firdavs [7]

Answer:

X= -34

Step-by-step explanation:

6 0
3 years ago
The cost of a council tax bill increased by 5%.
andreyandreev [35.5K]

The council tax bill before the increase is £1240

The equation that represents the percentage increase in council tax bill is :

percentage increase x t = £62

Where t represents the initial council tax bill - council tax bill before the 5% increase

5% x t = £62

0.05 x t = £62

Divide both sides of the equation by 0.05

t = £62 / 0.05 = £1240

To check if the answer derived is correct : 5% x 1240 = 62.

A similar question was answered here: brainly.com/question/12066598?referrer=searchResults

5 0
3 years ago
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