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Setler79 [48]
3 years ago
9

Evaluate 9y^1 - y^0 if y = -8

Mathematics
1 answer:
Xelga [282]3 years ago
4 0

Answer:

9y^2-1 i think

Step-by-step explanation:

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Five workers are hired to seed a field by hand. Each is given a plot which is 6x12 feet in size. What is the total area of the f
Lorico [155]

Answer:

360 feet

Step-by-step explanation:

multiple 6 by 12 to get the area of the individual plot of land given to a single worker.

Then multiply by 5 for all 5 workers getting the same plot of land.

3 0
3 years ago
The speed of a stream is 2 mph. A boat travels 4 miles upstream in the same time it takes to travel 8 miles downstream. What is
Amanda [17]
4 = (r-2) t

8 = (r+2) t

4 = (r-2) * [8/(r+2)]

4 = (8r-16)/ (r+2)  . . .multiply by 2


4r + 8 = 8r - 16

4r = 24

r = 6

hope this helps
7 0
3 years ago
Help if your good at math please!
TiliK225 [7]

Answer:

40% apples

train going 80 miles per hour

5 0
3 years ago
In a study of pain relievers, 50 people were given product A, and all but 11 experienced relief. In the same study, 100 people w
Nataly_w [17]

Answer:

Product B performed worse in the study because 86% failed to get relief with this product, whereas only 78% failed to get relief with Product A

Step-by-step explanation:

We are given the following in the question:

Product A:

Number of people,

n_1 = 50

Number of people who received relief,

x_1 = 11

Proportion of people who received relief from product A =

p_A = \dfrac{x_1}{n_1} = \dfrac{11}{50} = 0.22 = 22\%

Proportion of people who did not received relief from product A =

1 = p_A = 1 - 0.22 = 0.78 =78\%

Product B:

Number of people,

n_2 = 100

Number of people who received relief,

x_2 = 14

Proportion of people who received relief from product B =

p_B = \dfrac{x_2}{n_2} = \dfrac{14}{100} = 0.14 =14\%

Proportion of people who did not received relief from product B =

1 = p_B = 1 - 0.14 = 0.86=86\%

Product B performed worse in the study because 86% failed to get relief with this product, whereas only 78% failed to get relief with Product A

3 0
3 years ago
Which of the following is an even function?
MaRussiya [10]
Even means g(-x)=g(x)
replace x with -x and see if it simplifies to original functin


g(-x)=(-x-1)²+1
g(-x)=((-1)(x+1))²+1
g(-x)=(x+1)²+1
nope

g(x)=2x²+1
g(-x)=2(-x)²+1
g(-x)=2x²+1
yep

we are done


answer is 2nd one
8 0
3 years ago
Read 2 more answers
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