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Oxana [17]
3 years ago
10

A rectangular classroom has an area of 300 square feet. The length of the classroom is 5 feet longer than the width, w. Create a

n equation in terms of w to model this situation. Then, rewrite the equation in standard form and use the quadratic formula to solve for w.
Mathematics
1 answer:
weqwewe [10]3 years ago
6 0

Answer:

w^2 + 5w = 300

Step-by-step explanation:

A= length x width

A =300

Width = w

length = w + 5

Therefore

300 = (w) x (w + 5)

300 = w^2 + 5w

w^2 + 5w = 300

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Suppose that when your friend was born, your friend's parents deposited $7000 in an account paying 6.3% interest compounded quar
NNADVOKAT [17]

Step-by-step explanation:

okay I think you can solve this question now ☺️

7 0
3 years ago
An animal shelter has a 58% adoption rate for puppies. Of all puppies in the shelter, 80% live to be 7 years or older. Of the pu
dexar [7]

Answer:

P(A∩B) = 0.522

Step-by-step explanation:

Let's call A the event that a puppy is adopted and B the probability that a puppy live 7 or more years

So, the probability P(A∩B) that a randomly selected puppy in the shelter will get adopted and live 7 or more years is:

P(A∩B) = P(A)*P(B/A)

Because A and B are not independents.

Then, the probability P(A) that a puppy is adopted is 58% and the probability P(B/A) that a puppy live 7 or more years given that the puppy is adopted is 90%.

Finally, replacing the values, we get:

P(A∩B) = 0.58*0.9 = 0.522

It means that the 52.2% of the puppies are adopted and live 7 or more years.

7 0
3 years ago
What is the range of y = sinx in the interval - π ≤ x ≤ 0?
Kaylis [27]

Answer:

-1 \le y \le 1

Step-by-step explanation:

Let be y = \sin x, the range of the function corresponds to the set of values of y. The sine function is a bounded function between -1 and 1. Hence, the range of the function is:

-1 \le y \le 1

6 0
3 years ago
The cost of admission to the State Fair changed from $8.50 last year to $10.00 this year. Round to the nearest tenth. Show your
seropon [69]

Answer:

Percent increase is 17.6%

We still have to pay 7.50 with the coupon

Step-by-step explanation:

Percent increase = (new- original)/original *100%

                             = (10-8.5)/8.5 * 100%

                             = 1.5/8.5 * 100%

                             = 17.6470588%

Round to the nearest tenth

                                 17.6%

This is an increase since the cost went up.

If we have 25% off, we still have to pay (100%-25%) = 75%

10 *.75 = 7.50

We still have to pay 7.50 with the coupon

6 0
4 years ago
Help please with this question I will mark branliest
faltersainse [42]

Answer:The pictures not that clear

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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