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3 years ago

PLZ!!!!!!!! Help 99 points

Mathematics

2 answers:

inn [45]3 years ago

8 0

Beatrice is incorrect. All of these points are not on the same line because the slope between (-2 , -1) and (1, 0), which are coordinates from each of these pairs above are not equal to 1/2

Lesechka [4]3 years ago

3 0

Is incorrect you can't do do -(3, 2) and -(1,0)

Glad I could help. Have A Good day

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Simpson deposits $1,200 in a savings account that earns simple interest at the rate of 5% per year. What interest does he earn a

Verdich [7]

Answer:

$60

Step-by-step explanation:

1200*0.05 = $60

5 0

3 years ago

Help me with this please everyone

cupoosta [38]

First, let's simplify each expression by combining like terms:

A: 9x-3x-4 = 6x-4

B: 12x-4 = 12x-4 (Already Combined terms)

C: 5x+x-4 = 6x-4

When looking at the list of equations, it is clear that only Expression A and C are equivalent. Brianna failed to combine like terms and plug in more points than 0.

I Hope this Helps!
-Sinnamin

3 0

3 years ago

What is mine times nine

statuscvo [17]

If you are meaning Nine times Nine the answer is 81.

8 0

3 years ago

Allison is working two summer jobs, making $12 per hour lifeguarding and $8 per hour washing cars. Last week Allison worked 3 mo

timama [110]

Answer:

Allison worked 6 hours lifeguarding and 3 hours washing cars.

Step-by-step explanation:

Let

Number of hours Allison worked lifeguarding last week = x

Number of hours Allison worked washing cars last week = y

1. Last week Allison worked 3 more hours lifeguarding than hours washing cars hours, then

$x-y=3$

<u>Lifeguarding:</u>

$12 per hour

$12x in x hours.

<u>Washing cars:</u>

$8 pere hour

$8y in y hours.

2. Allison earned a total of $96, hence

$12x+8y=96$

You get the system of two equations:

$\left\{\begin{array}{l}x-y=3\\ \\12x+8y=96\end{array}\right.$

Plot the graphs of these two equations (see attached diagram). These line intersect at point (6,3), so Allison worked 6 hours lifeguarding and 3 hours washing cars.

3 0

3 years ago

If men having High Blood Sugar problems are diagnosed with Diabetes, with the mean blood sugar level to be at 150 and a standard

frutty [35]

Answer:

0.0062

Step-by-step explanation:

Let X be the diagnosed blood sugar level.

Probability of committing a Type II error = Probability of failing to detect the disease when the person has the disease = Probability that the diagnosed blood sugar level is less than or equal to 125 =

$P(X \le 125 |\mu = 150)$

$= P[Z\le (125 - 150)/10]$

$=P[Z \le -2.5]$

= 0.0062

8 0

3 years ago