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2 years ago

What is 4x2 - x + 17 when x = -7?

Mathematics

1 answer:

SSSSS [86.1K]2 years ago

3 0

Answer:

Step-by-step explanation:

4 times 2 is 8, - -7 is 15 plus 17 is 32

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What is the solution to this inequality?

Evgen [1.6K]

Answer:

Answer: x<7.1

Step-by-step explanation:

${ \tt{4.7 > x - 2 \frac{2}{5} }} \\ \\ { \tt{4.7 > x - \frac{12}{5} }} \\ \\ { \tt{x < 4.7 + \frac{12}{5} }} \\ \\ { \boxed{ \tt{x < 7.1}}}$

6 0

2 years ago

Please help this is so difficult

White raven [17]

Answer:

Step-by-step explanation:

For a line to be parallel it must have the same slope

6x-2y=-5

+5 +5

6x-2y+5 = 0

+2y +2y

6x+5 =2y

/2 /2

3x+5/2=y So the slope is 3 and we know it can only be either B or D

Now we need to find which line passes through (7,-2) and we find this by plugging 7 into B and D

B. -2= 21-23 TRUE

D. -2 = 21+ 23 FALSE

So the answer is B

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2 years ago

Nathaniel bought headphones online for $22. He used a coupon code to get a 40% discount. The website also applied a 10% processi

Tatiana [17]

Answer:

8.80 if it's the 40°/.

2.20 if it's the 10°/. processing fee

13.20 for how much he paid

8 0

1 year ago

12.33 to the nearest tenth

ivann1987 [24]

12.3 is the answer i think

7 0

3 years ago

Read 2 more answers

Find the slope of the line passing through the pairs of points and describe the line as rising, falling, horizontal or vertical.

Anna [14]

Answer:

$a.\ m=2,\ \text{the line is rising}\\\\b.\ m=-\dfrac{5}{4},\ \text{the line is falling}\\\\c.\ m=0,\ \text{the line is horizontal}\\\\d.\ m\ is\ unde fined,\ \text{the line is vertical}$

Step-by-step explanation:

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

m > 0, then a line is rising

m < 0, then a line is falling

m = 0, then a line is horizontal

m is undefined, then a line is vertical

(2, 1) and (4, 5)

$m=\dfrac{5-1}{4-2}=\dfrac{4}{2}=2>0\to\text{rising}$

(-1, 0) and (3, -5)

$m=\dfrac{-5-0}{3-(-1)}=\dfrac{-5}{4}=-\dfrac{5}{4}$

(2, 1) and (-3, 1)

$m=\dfrac{1-1}{-3-2}=\dfrac{0}{-5}=0\to\text{horizontal}$

(-1, 2) and (-1, -5)

$m=\dfrac{-5-2}{-1-(-1))}=\dfrac{-7}{0}\ \text{UNDEFINED}\to\text{vertical}$

7 0

2 years ago

What is 4x2 - x + 17 when x = -7?​

What is 4x2 - x + 17 when x = -7?