MATHEMATICS MIDDLE SCHOOL

What values are solutions of 0 =2xexponent of 2 -6x-8

Answers

Answer 1
Answer:

Answer:

x = -1 and x = 4

Step-by-step explanation:

Firstly solve the quadratic expression of

2x^2-6x-8 = 0....it gives you the two brackets of.....(2x-8)(x+1)=0

then...you equate the two brackets to 0.separately

2x-8 = 0....which gives you...x = 4...as the first solution..then..;

x+1 = 0....which gives you...x = -1...as the second solution

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Letter a I need help plz and thank you

Answers

7/3 would be 5, 5.1 would be 13.3 and 5/6 would be .5

M<9= 6x and m<11=120. Find the value of x so that line c is parallel to line d.

Answers

Answer:

The value of x is 20°

Step-by-step explanation:

we know that

m∠ 9 and m∠ 11 are corresponding angles

If line c is parallel to line d

then

m∠ 9 = m∠ 11

Substitute

6x=120°

x=20°

Answer:

20

Step-by-step explanation:

:))

which of the given expressions are equivalent?select all that apply.3z+2z and 5z, {8x-8x}-y and 0,9.1 +4.5a-2.5a and 11.1a,-7y[3]-3and0, y-6[3]and y-18

Answers

3z+2z and 5z     9.1+4.5a-2.5a and 11.1a       and y-6(3) and y-18

Answer:

120,15

Step-by-step explanation:

Sasha has a triangle with vertices A,B and C. The triangle has three congruent angles. She wants to show that triangle ABC has three congruent sides,but she does not have a ruler to measure the lengths of the sides. How can she show that the triangle has three congruent sides?

Answers

She can draw a triangle and then write the lenghts of the triangles with the same numbers

Three sections of fence need to be painted each section is made up of four equal sized boards Alexs paints 1/6 of the fence bobby pins twice as much as Alex Charles paints only one board David paints the rest who paints the largest part of the fence

Answers

If you would like to know who paints the largest part of the fence, you can calculate this using the following steps:

three sections of the fence ... 3 sections
four equal sized boards ... 4 boards
3 * 4 = 12 boards

Alex: 1/6 of 12 boards = 1/6 * 12 = 2 boards
Bobby: twice as much as Alex = 2 * 2 boards = 4 boards
Charles: 1 board
David: 12 - 2 - 4 - 1 = 5 boards

Result: The largest part of the fence paints David (5 boards).

You borrowed 90 dollars from your grandmother. You pay back 15 dollars each week. Write in standard form an equation in which y is the amount of money owed after x weeks.

Answers

y = -15x + 90 

But that's not in standard form (it's in slope-intercept form). So, to change the equation into standard form, add 15x to each side.

y = -15x + 90
y + 15x = -15x + 90 + 15x
15x + y = 90

Hope this helped :)
y= money borrowed  minus  money paid times number of weeks

x = weeks
Ans:  y = $90 - $15x
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