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BigorU [14]
2 years ago
10

What's the sum of (ab+4a-6)+(ab+6)

Mathematics
1 answer:
nadya68 [22]2 years ago
6 0
(ab+4a-6)+(ab+6)
= ab+4a-6+ab+6
= 2ab+4a
= 2a(b+2)
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Can someone pleaseeeee helpppppo
sergejj [24]

Answer:

The answer is the first one.

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3 years ago
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Write an equation of the line that passes through (-1,7) and is perpendicular to the line y=-1/8x -1
kirill115 [55]

Answer:

y = 8x + 15

Step-by-step explanation:

Step 1: Find slope of perpendicular line

<em>Take the negative reciprocal of the 1st equation</em>

m = 8

y = 8x + b

Step 2: Find <em>b</em>

7 = 8(-1) + b

7 = -8 + b

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Step 3: Rewrite perpendicular equation

y = 8x + 15

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How do I solve quadratic using the quadratic formula
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3 years ago
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.Natalie has $680 to spend at a bicycle store for some new gear and biking outfits.Assume all prices listed include tax.She buys
Vitek1552 [10]

Answer:

Writing the inequality, we have;

420.56+32.43x\leq680

the solution to the inequality is;

x\leq8

Explanation:

Given that Natalie has $680 to spend at a bicycle store for some new gear and biking outfits.

Total spending must not exceed $680

\text{total spending }\leq680

She buys a new bicycle for $383.33.

• She buys 2 bicycle reflectors for $7.61 each and a pair of bike gloves for $22.01.

She plans to spend some or all of the money she has left to buy new biking outfits

for $32.43 each.

let x represent the number of biking outfits she can buy.

Total spending is;

\begin{gathered} 383.33+2(7.61)+22.01+32.43(x) \\ 420.56+32.43x \end{gathered}

Writing the inequality, we have;

420.56+32.43x\leq680

we can now solve the inequality;

\begin{gathered} 420.56+32.43x\leq680 \\ \text{subtract 420.56 from both sides;} \\ 420.56-420.56+32.43x\leq680-420.56 \\ 32.43x\leq259.44 \\ \text{divide both sides by 32.43} \\ \frac{32.43x}{32.43}\leq\frac{259.44}{32.43} \\ x\leq8 \end{gathered}

Therefore, the solution to the inequality is;

x\leq8

6 0
1 year ago
3. Multiply (-7)(2)(-2). (5 points)<br> 1. -28<br> 2. -14<br> 3. 28<br> 4. 14
Rashid [163]

Answer:

28

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-7x2 is -14

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3 years ago
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