PLEASE HELP ME ON THESE QUESTIONS!!!

Mathematics

1 answer:

jasenka [17]3 years ago

5 0

For Question 1 the answer is the last choice.

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Nella and Hugh work at a plastics factory. Nella

Vikki [24]

Answer:

Hugh spent 2.25 more hours then Nella at the injection factory.

Step-by-step explanation:

First, I took eight and a quarter hours and subtracted six hours from it and got 2.25 or two and a quarter hours.

3 0

4 years ago

Help!!!! I need help

Eva8 [605]

The surface area is 803.84ft<span> ². and formula A is the correct formula for finding the surface area of a sphere.</span>

7 0

3 years ago

15 more than half a number is 9

avanturin [10]

1/2n + 15 = 9 <== ur equation
1/2n = 9 - 15
1/2n = - 6
n = -6 * 2
n = - 12 <== ur solution

4 0

3 years ago

What is the equation of the line?

Oksi-84 [34.3K]

First find the slope of the line. Slope is defined as the change in y over the change in x.

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

Find two ordered pairs and plug them into the slope formula.

After looking at the graph, I found two points: (0, 1) and (4, 4)

$\frac{4 - 1}{4 - 0} = \frac{3}{4}$

Now find where the line intersects the y-axis.

After looking at the graph, I found out that the line intercepts the y-axis at
(0, 1)

Now build the slope-intercept equation.

General form: y = mx + b
Where m is the slope and b the y-intercept

So, the answer is y = 3/4m + 1

8 0

3 years ago

Sammy's Sandwich Shop has a mean delivery time of 25 minutes with a standard deviation of 2 minutes. Determine the z-score for t

fiasKO [112]

Answer:

-1

Step-by-step explanation:

Given: Mean= 25 minutes.

Standard deviation= 2 minutes

x= 23 minutes.

Lets find the z-score for the number of sandwiches delivered in less than 23 mins.

Formula: Z-score= $\frac{x-mean}{standard\ deviation}$