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3 years ago

Which of the following functions is graphed below?

Mathematics

1 answer:

Ghella [55]3 years ago

6 0

Selection A is appropriate.

_____
The black dot on the graph means that one of the regions of interest will be
x ≤ 1

The y-intercept for the left branch of the graph is -4, so we khow that
y = x³ -4, x ≤ 1
will be part of the function definition.

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What is the answer to K/2+1-1k=-2k

Mazyrski [523]

$\dfrac{k}{2}+1-1k=-2k\\\\\dfrac{1}{2}k+1-k=-2k\\\\\left(\dfrac{1}{2}k-k\right)+1=-2k\\\\-\dfrac{1}{2}k+1=-2k\qquad\text{subtract 1 from both sides}\\\\-\dfrac{1}{2}k=-2k-1\qquad\text{add 2k to both sides}\\\\1\dfrac{1}{2}k=-1\qquad\text{convert the mixed number to improper fraction}\\\\\dfrac{1\cdot2+1}{2}k=-1\\\\\dfrac{3}{2}k=-1\qqua\text{multiply both sides by}\ \dfrac{2}{3}\\\\\boxed{k=-\dfrac{2}{3}}$

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3 years ago

Solve each equation. Showing your reasoning. X^2-6x-20=7

scoundrel [369]

Answer:

x=-3,x=9

Step-by-step explanation:

x^2-6x-20-7=0

x^2-6x-27=0

x^2-(9-3)x-27=0

x^2-9x+3x-27=0

x(x-9)+3(x-9)=0

(x+3)(x-9)=0

x=-3,x=9

4 0

3 years ago

5. Rebecca is 6 years older than three times Andrew's age. The sum of their ages is 18. How old is Rebecca?

anygoal [31]

Answer:

Rebecca is 18

Step-by-step explanation:

18/6-3=0

5 0

3 years ago

A circle has what type of symmetry? point point and line point, line and plane line

sleet_krkn [62]

A circle in a plane is symmetrical around a single point in the plane.

4 0

3 years ago

Read 2 more answers

A discount voucher offering 15% off is sued to pay a bill

mel-nik [20]

Answer:244.8

Step-by-step explanation:

15% of y=36.72

15/100 x y=36.72

15y/100=36.72

Cross multiply

15y=36.72 x100

15y=3672

Divide both sides by 15

15y/15=3672/15

y=244.8

6 0

3 years ago