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Travka [436]
3 years ago
9

Please help, I’m confused.,

Mathematics
1 answer:
Ann [662]3 years ago
6 0
From what it sounds like your suppose to substitute 7 for all x's with in the equation :
2(7)^3-9(7)^2-32(7)-21
USE PEMDAS to solve hopefully this helps and anyone else feel free to add the correct answers if my way is incorrect.
You might be interested in
It takes 4 hours to drive 240 miles. Select all the other trips that are traveling at the same rate.
kogti [31]

Answer:

60 mph

Step-by-step explanation:

Time:miles

4:240

1:x

To get x divide 240 by 4 because that's what we divided 4 by to get 1

The rate is 60

select all times with the rate of 60 mph

6 0
3 years ago
16. Devon answered 23 out of 25 problems on a math test correctly. What percent of the problems did Devon answer correctly?​
timofeeve [1]

Answer:

92%

Step-by-step explanation:

100/25= 4

4 x 23 = 92

6 0
3 years ago
Vera ordered a soup, salad, and sandwich to share with her friends. The probabilities of each item being ready
Mkey [24]

Answer:

its

Soup ready first

Sandwich ready first

Salad ready first

Step-by-step explanation:

7 0
4 years ago
Factor out the coefficient of the variable term The expression 1/10k-7/10 factored is
Goshia [24]

Answer:

The answer: 1/10x (k-7)

Step-by-step explanation:

6 0
3 years ago
In a genetics experiment on peas, one sample of offspring contained green peas and yellow peas. Based on those results, estimate
dem82 [27]

Complete Question

In a genetic experiment on peas, one sample of offspring contained 436 green peas and 171 yellow peas. Based on those results, estimate the probability of getting an offspring pea that is green. Is the result reasonably close to the value of 3/4 that was expected? The probability of getting a green pea is approximately: Is the probability reasonably close to 3/4?

Answer:

The  probability is  P(g) =0.72

Yes the result is reasonably close

Step-by-step explanation:

From the question we are told that

   The  number of  of  green peas is  g =  436

     The number of yellow peas is  y  = 171

   The sample size is  n  =  171 +  436 =  607

The probability of getting an offspring pea that is green is mathematically represented as

       P(g) = \frac{g}{n}

        P(g) = \frac{436}{607}

        P(g) =0.72

Comparing  P(g) =0.72  to   \frac{3}{4}  =  0.75 we see that the result is reasonably close

7 0
4 years ago
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