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lisabon 2012 [21]
3 years ago
6

Reduce -2+b2 by 7+b2

Mathematics
1 answer:
svlad2 [7]3 years ago
4 0
I think the answer is -9.
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I am confused on this question.....please help!
asambeis [7]

Answer:

Todd.

Step-by-step explanation:

The equation has no solutions because negative 2 ≠ 4

3 0
3 years ago
Chenelle has a savings account that earns 5% simple interest each year. She can only deposit small amounts into her account each
SVEN [57.7K]

Answer:

Yes, she should.

Step-by-step explanation:

5% may not seem like a lot. Lets say she deposits $20 per month. That's $240 a year. Lets also say you keep this for 6 years, you'll have $72 from interest. The more amount she puts in the more she'll gain.

First, converting R percent to r a decimal

r = R/100 = 5%/100 = 0.05 per year,

then, solving our equation

I = 240 × 0.05 × 6 = 72

I = $ 72.00

The simple interest accumulated

on a principal of $ 240.00

at a rate of 5% per year

for 6 years is $ 72.00.

3 0
3 years ago
What is 6 times the square root of 2 to the power of 2
Stolb23 [73]

Answer:

5.65685425

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
CAN YOU HELP ME PLEASEEEE ITS GEOMETRY!!! THANK YOUUU
valentinak56 [21]

Answer:

CE= 32

QS= 14

Step-by-step explanation:

Since the C=R and the E=Q, and the RQ is 16, the CE is 2x that value. (Since the CDE is 2x bigger than RSQ)

You also want to flip the triangles until they are in the same positions as each other so you can analyze it easier

6 0
2 years ago
The shape of the distribution of the time required to get an oil change at a 10 minute oil change facility is unknown. However,
lyudmila [28]

Answer:

The answer is below

Step-by-step explanation:

a) For a normal model the sample size has to be equal or greater than 30 so that it can be a normal distribution.

b) Given that:

μ = 11.2 minutes, σ = 4.8 minutes, n = 45

The z score determines how many standard deviations the raw score is above or below the mean. It is given by:

z=\frac{x-\mu}{\sigma} \\For\ a\ sample\ size(n)\\z=\frac{x-\mu}{\sigma/\sqrt{n} }

For x < 10 minutes

z=\frac{x-\mu}{\sigma/\sqrt{n} }\\\\ z=\frac{10-11.2}{4.8/\sqrt{45} }= -1.68

Therefore from the normal distribution table, P(x < 10) = P(z < -1.68) =  0.0465

7 0
3 years ago
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