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2 years ago

Which statement is correct?

Mathematics

1 answer:

iragen [17]2 years ago

4 0

Answer:

I think its OB but I'm not sure

Step-by-step explanation:

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Points (0,0) and (3,3) lie on line k. What is the slope of the line perpendicular to k?

mixas84 [53]

Answer:

-1

Step-by-step explanation:

(0, 0) and (3, 3)

To find slope:

3-0/3-0 = 3/3 = 1

Since it's looking for the perpendicular slope, you just do the opposite of 1.

Which is -1.

6 0

3 years ago

Please answer,it has to be done in the next 20 minutes its my homework and i forgot to do it.

Bingel [31]

Answer:

g = -2/3

Step-by-step explanation:

-g + 6 +2g = -4g - (-4)

g + 6 = -4g + 4

3g =-2

g = -2/3

3 0

3 years ago

What is -3x^2-4x-4=0

ss7ja [257]

Answer:

<h2>no real solution</h2>

Step-by-step explanation:

$-3x^2-4x-4=0\qquad\text{change the signs}\\\\3x^2+4x+4=0\\\\\text{use the quadratic formula:}\\\\\text{for}\ ax^2+bx+c=0\\\\\text{if}\ b^2-4ac0,\ \text{then an equation has two solutions:}\ x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}$

$\text{We have}\ a=3,\ b=4,\ c=4.\\\\\text{Substitute:}\\\\b^2-4ac=4^2-4(3)(4)=16-48=-32$

8 0

3 years ago

PLEASE ANSWER I WILL MARK THE BRAINIEST ANSWER :)<br><br>factorise: X^2 + 10x + 16

Damm [24]

Answer:

(x+2)(x+8)

Step-by-step explanation:

1.)find factors of the third expression(16)that will add up to give the second expression(10)

16=2×8. 10=2+8

2.)substitute those factors inplace of 10

${x}^{2} + 10x + 16$

$x {}^{2} + 2x + 8x + 16$

3.)factorise using grouping method

$( {x}^{2} + 2x) + (8x + 16)$

$x(x + 2) + 8(x + 2)$

$= (x + 2)(x + 8)$

3 0

2 years ago

Question Help

Daniel [21]

$\frac{2400}{400} = 6$

each shirt costs $6

$\frac{10 - 6}{6} \times 100 = 66.6666....$

The percent markup is about 66.7%

3 0

2 years ago