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3 years ago

Help me you you oyu ouy ou yo

Mathematics

2 answers:

WARRIOR [948]3 years ago

6 0

Answer:

(x-7) (x+1)

Step-by-step explanation:

x^2 - 6x - 7

What two numbers multiply to -7 and add to -6

-7*1 = -7

-7+1 = -6

(x-7) (x+1)

Len [333]3 years ago

5 0

Answer:

D. (x - 7) (x + 1)

Step-by-step explanation:

= x^2 - 6x - 7

= x^2 - 7x + x - 7

= x(x - 7) + 1(x - 7)

= (x + 1)(x - 7)

= (x - 7) (x + 1)

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1. Let C be between D and E. Use the Segment addition Postulate to solve for v.

AURORKA [14]

By applying the segment addition postulate, the value of v = 7

According to the Segment Addition Postulate, it holds that if point C is between points D and E, therefore:

DC + CE = DE

Given that:

$DC = 2v-15\\\\CE = 3v-8\\\\DE = 27$

Therefore, by substitution, we will have the following equation:

$(2v-15) + (3v-8) = 27$

Open the bracket and solve for the value of v.

$2v-15 + 3v-8 = 27$

Add like terms

$5v - 23 = 27$

Add 23 to both sides

$5v - 23+ 23 = 27 + 23\\\\5v = 50$

Divide both sides by 5

v = 10

Therefore, using the segment addition postulate, the value of v = 10

Learn more about the segment addition postulate here:

brainly.com/question/1721582

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2 years ago

Evaluate 14+ (- 2) A) 12 B)- 12 C) 16 D)- 16

11111nata11111 [884]

The answer would be A.12

6 0

3 years ago

HELP ASAP TIMED !!!! What is the exact value of cos(c + d), given Sine c = StartFraction 24 Over 25 EndFraction for c in Quadran

Keith_Richards [23]

9514 1404 393

Answer:

Step-by-step explanation:

In the second quadrant, ...

c = 180° -arcsin(24/25) ≈ 106.26°

In the third quadrant, ...

d = 360° -arccos(-3/4) ≈ 221.41°

Then cos(c+d) = cos(327.67°) ≈ 0.84498

This is a positive irrational number, greater than 21/100, so the only reasonable choice is the last one:

$\dfrac{21+24\sqrt{7}}{100}\approx 0.84498$

_____

Perhaps you want to work this out using the trig identities.

cos(c) = -√(1 -sin(c)²) = -7/25

sin(d) = -√(1 -cos(d)²) = -(√7)/4

Then the desired cosine is ...

cos(c+d) = cos(c)cos(d) -sin(c)sin(d)

cos(c+d) = (-7/25)(-3/4) -(24/25)(-√7/4)

cos(c+d) = (21 +24√7)/100 . . . . matches choice D

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2 years ago

You decide to put $100 in a saving account to save for a $3000 down payment on a new car. if the account has an interest rate of

valkas [14]

Hi there
The formula is
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R interest rate 0.02
K compounded monthly 12
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So it's a
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3 years ago

The points ( - 3, - 9) and ( - 7, - 4) fall on a particular line. what is its equation in point-slope form?

34kurt

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8 0

2 years ago