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gregori [183]
4 years ago
13

A + 7b - 10ab + a =? Please explain: Is the answer a2 + 7b -10ab? Please let me know!

Mathematics
1 answer:
Viefleur [7K]4 years ago
4 0
Let's simplify step-by-step.<span><span><span>a+7b</span>−<span>10ab</span></span>+a</span><span>=<span><span><span><span>a+7b</span>+</span>−<span>10ab</span></span>+a</span></span>Combine Like Terms:<span>=<span><span><span>a+7b</span>+<span>−<span>10ab</span></span></span>+a</span></span><span>=<span><span><span>(<span>−<span>10ab</span></span>)</span>+<span>(a+a)</span></span>+<span>(7b)</span></span></span><span>=<span><span><span>−<span>10ab</span></span>+2a</span>+7b</span></span>Answer:<span>=<span><span><span>−<span>10ab</span></span>+2a</span>+7b</span></span> 
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Fran need to move $9 million out of the country. The dimensions of a US bill is 2.61 inches by 6.14 inches by 0.0043 inches.
Mice21 [21]

Answer:

  • 1728 in³ in a cubic ft
  • 3.6 cubic feet (rounded to tenths)
  • 2 suitcases

Step-by-step explanation:

For part 2, you have rounded to hundredths. The question asks for the answer rounded to tenths.

__

<u>Part 3</u>

  (3.6 ft³)×(1 suitcase)/(2.9 ft³) = 3.6/2.9 suitcases ≈ 1.24 suitcases

Suitcases only come in whole numbers. 1 is too few, so 2 suitcases are needed.

5 0
3 years ago
What is the total amount for an investment of $1600 invested at 4.25% for 20 years and compounded continuously?
galina1969 [7]

Answer:

  $3743.43

Step-by-step explanation:

The amount is given by the formula ...

  A = Pe^(rt)

where P is the principal, r is the annual rate compounded continuously, and t is the number of years. Filling in the values, we get ...

  A = $1600·e^(0.0425·20) = $1600·e^0.85

  ≈ $1600·2.33964685 ≈ $3743.43

The amount in the account will be $3743.43.

5 0
3 years ago
Jim can read 17 pages in 12 minutes. If he can maintain this pace, how many pages can he read in one hour?
Lostsunrise [7]
Answer: 85 pages
cross multiply 60 x 17 = 1020 / 12 = 85

17 85
— = —
12 60
7 0
3 years ago
Find the sum of the measures of the interior angles of the figure.
Free_Kalibri [48]

Answer:

\huge\boxed{\sf  900}

Step-by-step explanation:

Sides of the figure = n = 7

<h3><u>Formula for measuring the interior angles of a polygon:</u></h3>

(n - 2)×180

Where n is the number of sides in the polygon

So,

<h3><u>Measure of interior angles in the figure:</u></h3>

= (n - 2) × 180

= (7 - 2) × 180

= 5 × 180

= 900

\rule[225]{225}{2}

4 0
2 years ago
Read 2 more answers
Which choice is a correct equation for the graph shown below?
Doss [256]

Answer:

C

Step-by-step explanation:

y = mx +b  The b is where the graph crosses the y axis.  If you look a the graph it is crossing at 5.  The m is the slope.  It is the change in y over the change in x.  If you start at 5 and go up10 and over 1, you will be on the line.  So our slope is 10/1 which is just 10

5 0
2 years ago
Read 2 more answers
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