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sleet_krkn [62]
3 years ago
8

(15x2-3x+9)-(2 x 2+x-3)=

Mathematics
1 answer:
ivann1987 [24]3 years ago
7 0

Answer:

12

Step-by-step explanation:

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Shaq invested $900 into a savings account that pays annual simple interest. At the end of 9 years, he earned $461.70 in interest
Nastasia [14]

Answer:

0.051

Step-by-step explanation:

8 0
3 years ago
Simplify the expression. What classification describes the resulting polynomial? (3x^2-11x-4)-(2x^2-x-6)
Gnoma [55]

The expression can be simplified to a polynomial of degree 2.

x^2 - 10x + 2

<h3>How to simplify the expression?</h3>

Here we have the expression:

(3x^2 -11x - 4) - (2x^2 - x - 6)

We can directly simplify this by taking the variable as common factor:

(3 - 2)*x^2 + (-11 + 1)*x + (-4 + 6)\\\\x^2 - 10x + 2

This is a polynomial, as you can see, the maximum exponent is 2, so the degree of the polynomial is 2.

If you want to learn more about polynomials:

brainly.com/question/4142886

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8 0
2 years ago
Write the slope-intercept from of the equation of the line described. Through (-2, -1) perpendicular to y = 1/4x
Feliz [49]

Step-by-step explanation:

Slope Intercept Form is "y = mx + b"

What it means?

"m" - slope

"b" - y intercept (0,b)

So, we are given the slope, but not the y intercept..

For now, lets fill in the slope.

y = 1/4x +  b

We are given a coordinate pair (-2,-1)

Fill it into the equation and solve for b.

-1 = 0.25(-2) + b

-1 = -0.50 + b

- 0.50 = b

We now have the value of "B"

Fill in the rest of the equation:

y = 1/4x + -.50

^ I think that is correct, sorry if it's wrong.

5 0
3 years ago
Pls help! What is 53,010,000 in scientific notation :3
velikii [3]
To find a, take the number and move a decimal place to the right one position. 
Original Number : 53,010,000
New Number: 5.3010000

6 0
4 years ago
Read 2 more answers
One number is 5 times a first number. A third number is 100 more than the first number. If the sum of the three numbers is 779,
Harrizon [31]

Answer:

97, 485, 197

Step-by-step explanation:

<u>Given</u>:

  • First number = a
  • Second number = b
  • Third number = c

<u>Then we have:</u>

  • b = 5a
  • c = 100+a
  • a + b + c = 779

<u>Substituting b and c in the third equation:</u>

  • a + 5a + 100+a = 779
  • 100 + 7a = 779
  • 7a = 779- 100
  • 7a=679
  • a= 679/7
  • a = 97
  • b= 5*97 = 485
  • c = 100+ 97 = 197
8 0
3 years ago
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