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3 years ago

+ Extra points, and I will give BRAINLIEST to the first person to get this question right.

Mathematics

1 answer:

Scrat [10]3 years ago

3 0

X = -15

14(-15) + 6
-------------- = - 68
3

-8 + 4(-15) = - 68

So, -3(-15)² - 7 = -682

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Juanita has a bag of marbles. Without looking, she removes one marble, notes the color and replaces it. She repeats this process

Svetllana [295]

Given table:

color ----- Frequency

Red ------ 14

Green ----- 19

Blue -------- 21

Yellow ----- 16

Number of process repeated (trials) = 70 times

Probability (event) = number of times the event occurs / total number of trials

From the table we can see that the number of times she pick the blue marble is 21

Probability of picking a blue marble on next try = $\frac{21}{70}$ = $\frac{3}{10}$

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3 years ago

12-packs of skwunch Apple juice cost $3.00 after a 40% discount. Which equations would allow you to find the original price of t

exis [7]

0.4x=3
x=3/0.4
x=$7.50
7.5x.4=3

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3 years ago

Johnny can type 141 words in 2 minutes.at this rate,how many words can be typed in 10 minutes

Sergeu [11.5K]

Answer:

705

Step-by-step explanation:

141 words in 2 minutes means 70.5 words in a minute

70.5 × 10 = 705 words in 10 minutes

7 0

3 years ago

Read 2 more answers

Calculate the area of the quarter circle estimate using 3.14 for pi

mars1129 [50]

The area of the quarter circle with radius 3ft is $7.065 ft^2$

Area of a quarter circle is given by the formula:

$Area = \frac{\pi r^2}{4}$

Where r represents the radius of the circle

In the quarter circle shown, the radius, r = 3 feet

π = 3.14

Substitute π = 3.14 and r = 3 into the formula $Area = \frac{\pi r^2}{4}$

$Area = \frac{3.14 \times 3^2}{4}\\\\Area = \frac{3.14 \times 9}{4}\\\\Area = \frac{28.26}{4}\\\\Area = 7.065 ft^2$

The area of the quarter circle with radius 3ft is $7.065 ft^2$

Learn more here: brainly.com/question/25843249

6 0

2 years ago

The table shows values of of a function F(x). What is the average rate of change F(x) over the interval from X = 5 to x = 9? Sho

vitfil [10]

Answer: the average rate of change is 4.

Step-by-step explanation:

The average rate of change is the slope. Therefore, you must use the following formula for calculate the slope:

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

As you can see in the table, when x=5, y=-2 and when x=9, y=14. Then the points you must substitute into the formula are:

(5,-2) and (9,14)

Then, you obtain:

$m=\frac{14-(-2)}{9-5}=4$

8 0

2 years ago