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Bad White [126]
3 years ago
8

9.1(3) + 8.7(4) = ?

Mathematics
1 answer:
Setler79 [48]3 years ago
5 0

Answer:

62.1

Step-by-step explanation:

PEMDAS!

9.1 * 3 = 27.3

8.7 * 4 = 34.8

27.3 + 34.8 = 62.1

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How many perfect square are there between 1,000,000 and 9,000,000?​
sp2606 [1]

Answer: 1999 perfect squares between 1,000,000 and 9,000,00

Step-by-step explanation:

Sq root of 1,000,000 is 1000 and square root of 9,000,000 is 3000

Hence there are squares of 1001 to 2999 I. e. 1999 perfect squares between 1,000,000 and 9,000,00

8 0
3 years ago
Read 2 more answers
Find the length of the segment that joins the points (-5, 4) and (6,-3).
Helen [10]

Answer:

\boxed {\boxed {\sf d=\sqrt{170} \ or \  d\approx 13.04}}}

Step-by-step explanation:

We are asked to find the length of a segment or the <em>distance</em> between the 2 points. The formula for distance is:

d= \sqrt{(x_2-x_1)^2+(y_2-y_1)^2

where (x₁ y₁) and (x₂, y₂) are the points. We are given the points ( -5, 4) and (6, -3). If we match the number and the corresponding variable, it is:

  • x₁= -5
  • y₁= 4
  • x₂= 6
  • y₂ = -3

Substitute the values into the formula.

d= \sqrt{(6--5)^2+(-3-4)^2

Solve inside the parentheses.

  • 6--5 (Back to back negative signs become a positive)= 6+5 =11
  • -3-4= -7

d= \sqrt{(11)^2+(-7)^2

Solve the exponents.

  • (11)²= 11*11= 121
  • (-7)²= -7*-7= 49

d= \sqrt {(121)+(49)

Add.

d= \sqrt {170}

d=13.0384048104

Even though it's not specified, we could round to the nearest hundredth to make the answer more concise. The 8 in the thousandth place tells us to round the 3 to a 4 in the hundredth place.

  • 13.03<u>8</u>4048104

d\approx 13.04

The length of the segment is <u>√170</u> or approximately <u>13.04. </u>

7 0
3 years ago
Target has a television on sale 20% off the regular price of $500.00. How much is the price after the markdown?
kolezko [41]

Answer:

What is 20 percent of 500.? = 100.

Step-by-step explanation:

7 0
3 years ago
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15x3 - 5x²y + 5xy, factorization<br>​
Dominik [7]
5•3•x•x•x-5•x•x•y+5•x•y=
5x(3x^2-xy+y)
Hope this explanation helps
7 0
3 years ago
Need help<br>No web link<br><br>Simplify <br><br>​
Damm [24]

x^( 2a - b ) + ( 2b + c ) + ( 2c + a ) =

x^2a + a + 2b - b + 2c + c =

x^3a - b + 3c

8 0
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