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hammer [34]
3 years ago
14

Solve for x 8x−6=15 Give your answer as an improper fraction in its simplest form

Mathematics
1 answer:
kramer3 years ago
5 0

Answer:

\boxed{x = \frac{21}{8} }

Step-by-step explanation:

=> 8x-6 = 15

Adding 6 to both sides

=> 8x = 15+6

=> 8x = 21

Dividing both sides by 8

=> x = 21/8 (In its simplest form)

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Use the quadratic expression 25x2−y2 to answer the questions.
vova2212 [387]

Answer:

Part A)

This quadratic expression can be factored by using the difference of squares pattern.

Part B) (5x+y) and (5x-y)

Step-by-step explanation:

Given:

25x^2-y^2

above polynomial can be factorize by using difference of squares formula

a2-b2=(a+b)(a-b)

25x^2-y^2= (5x-y)(5x+y)

so for part A)

correct option is  This quadratic expression can be factored by using the difference of squares pattern.

Part B)

As factored above in part A,

the factors of given polynomial 25x^2-y^2 are (5x+y)(5x-y)

so for part B) correct options are (5x+y) and (5x-y) !

8 0
4 years ago
Can you please show work please
-BARSIC- [3]

Answer:

1) y = 3x+5

2) y =  \frac{1}{2}x-4

3) y = -x + 0

4) y = -\frac{5}{3}x+8

5) y = \frac{3}{5} x - 7

Step-by-step explanation:

y = mx+b

In slope-intercept form, these are important to know:

- y and x should stay as variables

- m = slope of the line

- b = y intercept

Using the facts above⬆, we can solve these problems

Remember: Substitute m and b using the given information

1) y = 3x+5

2) y =  \frac{1}{2}x-4

3) y = -x + 0

4) y = -\frac{5}{3}x+8

5) y = \frac{3}{5} x - 7

Hope this helps :)

Have a great day!

3 0
3 years ago
Factor this trinomial.
Ahat [919]
x^2+2x-3=(x+3)(x-1)
4 0
4 years ago
Guy wants to swim 500 meters. After 75 meters, he takes a break. What percent of his goal has he already met?
babymother [125]

Answer:

15%

Step-by-step explanation:

75/500=0.15=15%

8 0
3 years ago
Easy question
Leviafan [203]
\dfrac{\mathrm dy}{\mathrm dt}=ky\iff\dfrac{\mathrm dy}y=k\,\mathrm dt

Integrating both sides, we get

\ln|y|=kt+C
\implies y=e^{kt+C}=e^{kt}e^C=Ce^{kt}

When t=0, we have y=10000, so that

10000=Ce^{0k}\implies C=10000

When t=4, we have y=8000, which means

8000=10000e^{4k}\implies k=\dfrac14\ln\dfrac{8000}{10000}\approx-0.0558
5 0
3 years ago
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