1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zanzabum
3 years ago
8

A room has an area of 216 square feet. One dimension is 6 feet more than the other. Find the length of the longer side.

Mathematics
2 answers:
zlopas [31]3 years ago
3 0
The dimensions would be x and x+6. The area is 216.

x(x+6) = 216
x^2 + 6x - 216 = 0
(x-12)(x+18) = 0

x = 12---Yes---
x = -18---No, sides cannot be negative---

If one side is 12, the other side is 18. To check:

12 * 18 = 216
216 = 216

Correct
kicyunya [14]3 years ago
3 0
He correct cause I just did it. ;)
You might be interested in
Maggie drank 4 5 liter of water Monday before going jogging. She drank 2 3 liter of water after her jog. How much water did Magg
cluponka [151]
It would be 6 and 3/10 because 4.5 plus 2.3 equals 6.3 so then you just make it into a mixed number and get 6 and 3/10
8 0
3 years ago
Data for the estimated number of HIV cases worldwide between 1988 and 1996 suggests exponential growth in the number of cases ov
Eduardwww [97]

Answer:

d. 52.5 million cases

Step-by-step explanation:

from the data output in the question, we have the regression equation to be

log y = -151.281 + 0.076577x

y is the number of hiv cases which is in millions

x is the year of the hiv case

x = 1998

we put the value of x in the regression equation

log y = -151.281 + 0.076577(1998)

log y = -151.281 + 153.000846

log y  = 1.719846

since the result is in log form,

y=10^{1.791846}

y = 52.5 million cases

3 0
3 years ago
Write an algebraic expression for 10 less than the difference of 2 times a number and 7
notka56 [123]

Answer:

(2n - 7) - 10

Step-by-step explanation:

(2n - 7) represents "difference of 2 times a number and 7"

- 10 represents "10 less"

6 0
3 years ago
Read 2 more answers
Michmoo Computer Company sells computers and computer parts by mail. The company assures its customers that products are mailed
Anastaziya [24]

Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}} , where \overline{x} is the sample mean , \sigma is the population standard deviation , n is the sample size and z_c is the two-tailed test value for z.

Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

n= 62

sample mean : \overline{x}=65 hours

Population standard deviation : \sigma=18 hours

z-value for 93% confidence interval: z_c=1.8119  [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)

Thus , 93% confidence the mean time taken to mail products for all orders received at the office of this company : (60.858, 69.142)

8 0
3 years ago
COME ON PLSSSSSS HELP I'VE POSTED THIS BEFORE :(
mr Goodwill [35]

Here are your points (-9,-8), (-6,-2), (-2,-6)

5 0
3 years ago
Other questions:
  • larry and steve have 171 marbles in all. the number of marbles larry has is 39 fewer than 3/7 of the number of marbles steve has
    5·1 answer
  • Is 8.25 greater than 8.250
    11·2 answers
  • What numbers go evenly into 78
    11·1 answer
  • A nut mixture of walnuts and cashew nuts at a small fair is $1.00 per pound of walnuts and $3.10 per pound of cashew nuts. Over
    10·2 answers
  • Round 42.621 to the nearest one
    8·2 answers
  • Themba has 6.75 cups of yoguri and needs to make 5 bowls of fruit dip. Each bowl
    11·1 answer
  • When solving the equation 4(3x+2)-9=8x+7, Emily wrote 4(3x+2)=8x+16 as her first step. Which property justifies Emily's first st
    8·2 answers
  • a card is drawn from a standard 52-card deck. what is the probability that the card is a red jack, given that the card is a face
    11·1 answer
  • A bakery sells two types of cakes. cupcakes and cakes
    9·1 answer
  • Find radius of the circle whose center is (5,-2) and the circle passes through (0,-6)
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!