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3 years ago

Which expression is equivalent to( 9x^2+2x-7)(-4)

Mathematics

2 answers:

Xelga [282]3 years ago

8 0

Answer: Option 'b' is correct.

Step-by-step explanation:

Since we have given that

$(9x^2+2x-7)(x-4)$

We need to find the equivalent form:

We will apply "Distributive law":

$a\times b+a\times c\\\\=a\times (b+c)$

So, it becomes,

$x(9x^2+2x-7)-4(9x^2+2x-7)$

Hence, Option 'b' is correct.

Masteriza [31]3 years ago

7 0

Answer:

I'm pretty sure its B. (9x2+2x-7)(x)+(9x2+2x-7)(-4)

Because its just splitting up the (x-4) and if you add the answers together then you get the same answer as the original

Step-by-step explanation:

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Which list contains values that are all part of the solution set of the graphed inequality? 2, 1, 3. 9, 4 2001. 3, 4, 0, 2. 6 1.

olya-2409 [2.1K]

The inequality is,

$0\leq x\leq 2001.3$

we have given that the solution set

2, 1, 3. 9, 4 2001. 3, 4, 0, 2. 6 1. 1, 1. 5, 19. 7, 8. 2 11, 1, 48. 5, 7.

here we have given that all the values of x are positive and

Which is the smallest point in above set?

and

Which is the highest point in the above set?

2001.3

Therefore,

we have a=0 and b=2001.2

Our equality lie in a and b

Therefore,

$a\leq x\leq b$

Plug the value of a and b we get

$0\leq x\leq 2001.3$

Therefore we get the inequality is,

$0\leq x\leq 2001.3$

To learn more about the inequality visit:

brainly.com/question/24372553

8 0

2 years ago

Joan works on commission for a furniture store. She gets a base pay of $85 a day plus 6 percent of the

podryga [215]

Answer:

Correct expression: 85 + 0.06(t - 400)

Correct earnings: $91

Step-by-step explanation:

The expression Joan wrote is incorrect because instead, $85, she put $400 as her base salary. The correct expression would be 85 + 0.06(t - 400), where 85 is her base pay in dollars, and t - 400 represents her sales in dollars exceeding $400.

If Joan's sales were $500, she would not make $424.90, but

85 + 0.06(t - 400)

85 + 0.06(500 - 400)

85 + 0.06(100)

85 + 6

$91

Hope this helps.

Cheers,

Andy

7 0

3 years ago

What is 1/4 - [-3/8] =

WINSTONCH [101]

$\frac{1}{4} - \frac{ - 3}{8} = \frac{5}{8}$
5/8 cross multiply on the top then multiply the denominator you get 20/32 reduce that it's 5/8

6 0

3 years ago

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F(x) = 2x3 + 7x2 – 4x – 5

qaws [65]

Answer:

Its 3

Step-by-step explanation:

7 0

3 years ago

Can someone help me with this pls

Oksi-84 [34.3K]

Answer:

x = 1/3 or x = -2/3

Step-by-step explanation:

Let's solve your equation step-by-step.

9x2+3x−2=0

For this equation: a=9, b=3, c=-2

9x2+3x+−2=0

Step 1: Use quadratic formula with a=9, b=3, c=-2.

$x=\frac{-b\pm\sqrt{b^2-4ac} }{2a}$

$x=\frac{-(3)\pm\sqrt{(3)^2-4(9)(-2)} }{2(9)}$

$x=\frac{-3\pm\sqrt{81} }{18}$

x = 1/3 or x = -2/3

4 0

2 years ago

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