SOMEBODY PLEASE HELP ME. ANSWER THIS QUESTION RIGHT.Use the quadratic equation x^2+10x+38=4 to complete the following statement drag and drop an answer choice into the empty box below.

Answers

Answer 1

Answer:

Answer:

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Step-by-step explanation: true story

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If y=7.5 when x=0.5, find y when x=-0.3

Answers

Y= -4.5

7.5/0.5=15

15*(-0.3)= -4.5

-4.5/-0.3=15

Final answer:

To find the value of y when x = -0.3, substitute x = -0.3 into the equation and solve for y. The value of y is 3200.

Explanation:

To find the value of y when x = -0.3, we can use the given equation:

Y = 400+ 0.85(Y-0.25Y) + 300 + 200 +500 -0.1(Y-0.25Y)

Substituting x = -0.3 into the equation, we can solve for y.

Y = 400+ 0.85(Y-0.25Y) + 300 + 200 +500 -0.1(Y-0.25Y)
Y = 1400+ 0.6375Y - 0.075Y
0.4375Y = 1400
Y = 3200

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Factor the expression 15x-^2-10x-5

Answers

$15x^2-10x-5=0\n \n a=15, \ \ b=-10 \ \ c=-5\n \n \Delta = b^(2)-4ac = (-10)^(2)-4* 15* (-5)= 100+300=400\n \nx_(1)=(-b-√(\Delta ))/(2a) =(10- √(400))/(2*15)=(10-20)/(30)= (-10)/(30)=-(1)/(3)\n \nx_(2)=(-b+√(\Delta ))/(2a) =(10+ √(400))/(2*15)=(10+20)/(30)= (30)/(30)=1 \n \n \ 15x^2-10x-5=15(x+ (1)/(3))(x-1)= (15x+ (1)/(3)*15)(x-1)=(15x+5)(x-1)\n \n Answer :15x^2-10x-5 =(15x+5)(x-1)$

15x^2 - 10x - 5
(3x + 1) (5x - 5)

If it tells you to solve it, set each part in parentheses and solve. What you end up will be your 2 final answers.

Write the number21,989.098 in expanded form and word form

Answers

21,989.098 in expanded form would be...

20,000+1,000+900+80+9+0.09+0.008

21,989.098 in word form would be...

Twenty-one thousand nine hundred eighty-nine and ninety-eight thousandths

Which shows one way to determine the factors of x3 – 12x2 – 2x + 24 by grouping? plzzzzz answerr x(x2 – 12) + 2(x2 – 12) x(x2 – 12) – 2(x2 – 12) x2(x – 12) + 2(x – 12) x2(x – 12) – 2(x – 12)

Answers

Answer:

Step-by-step explanation:

The idea of factoring by grouping is that you don't move anything around. You leave the polynomial in descending order of powers of x and group them together in groups of 2.

$(x^3-12x^2)-(2x+24)=0$

Then you factor out what is common in each set of parenthesis.

$x^2(x-12)-2(x-12)$

You know if factoring by grouping "works" if what's inside both sets of parenthesis is exactly the same. Both of ours are (x - 12), so grouping "worked". Match the factoring above to one of your answers.

Answer:

For anyone else viewing this, the answer is option D.

Step-by-step explanation:

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The area of a bathroom floor measures 2 yards by 3 yards and each custom tile that makes up the flooring is 1 1/2 square feet. How many tiles are needed to cover the floor?

Answers

The dimensions of the bathroom floor is given as 2 yards by 3 yards.
Then
The area of the bathroom floor in question = (2 * 3) square yards
   = 6 square yards
We already know that
1 square yard = 9 square feet
So
The area of the bathroom floor in question = (6 * 9) square feet
   = 54 square feet
Area covered by each custom tiles = 11/2 square feet
Then
Number of tiles required to cover the bathroom floor = 54/(11/2)
   = (54 * 2)/11
   = 108/11
   = 9.81
So the number of tiles required to cover the bathroom flooring is 10. Since fraction of tiles cannot be bought, so 10 tiles are required.

What is the value of x if 2x+5=10

Answers

Check the attachment below. Answer: 5/2

We need to rearrange to solve this
2x+5=10
2x=5
X=2.5

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