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solong [7]
3 years ago
9

I'm doing daily spiral review 4-1 A building has 8 same- sized apartments. The area of 1 apartment is 725 square feet .Let t be

the total area of the 8 apartments. They want me to draw a picture to describe t. And they want me to write an equation that you could use to find it. And they want to know What is the value of it
Mathematics
1 answer:
Oksana_A [137]3 years ago
7 0
What is your question? that made no sense sweet heart.
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Please show me how to solve for Xsquared - 21.75X = -15.75. I have the solution but do not know how to solve it.
Andreas93 [3]
x^2-21.75x=-15.75 \\
x^2-21.75x+15.75=0

Use the quadratic formula:
x^2-21.75x+15.75=0 \\ \\
a=1 \\ b=-21.75 \\ c=15.75 \\ b^2-4ac=(-21.75)^2-4 \times 1 \times 15.75=473.0625-63=410.0625 \\ \\
x=\frac{-b \pm \sqrt{b^2-4ac}}{2a}=\frac{-(-21.75) \pm \sqrt{410.0625}}{2 \times 1}=\frac{21.75 \pm 20.25}{2} \\
x=\frac{21.75-20.25}{2} \ \lor \ x=\frac{21.75+20.25}{2} \\
x=\frac{1.5}{2} \ \lor \ x=\frac{42}{2} \\
x=\frac{15}{20} \ \lor \ x=21 \\
x=\frac{3}{4} \ \lor \ x=21 \\
\boxed{x=\frac{3}{4} \hbox{ or } x=21}
3 0
3 years ago
Add. Be sure to simplify and have your answer in CORRECT scientific notation. (1.63 x 107) + (2.4 x 107) Question 1 options: 1.8
Andreyy89

Answer:

I am 100% sure its 4.03 x 10^7

Step-by-step explanation:

3 0
3 years ago
Please help i just wanna see if it is D as the answer
3241004551 [841]

Answer:

yes

Step-by-step explanation:

4 0
2 years ago
According to the table below, what is the probability that a student chosen at random will be 16 or older?
galben [10]

Answer:

probability: 0.44

8 0
2 years ago
Read 2 more answers
Write an equation, and solve. Round your answer to the nearest cent.
VashaNatasha [74]

Answer:

The cost of 16 oz of granola should be $16.16

Step-by-step explanation:

Given that,

The cost of 3 oz of granola is $3.03

We need to find the cost of 16 oz of granola..

As 3 oz = $3.03

1 oz = (3.03/3) = $1.01

The cost of 16 oz will be :

16 oz = 16×1.01

= $16.16

Hence, the cost of 16 oz of granola should be $16.16.

3 0
3 years ago
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