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3 years ago

How many times does 85 go into 221 Explain Thx!!

Mathematics

2 answers:

meriva3 years ago

7 0

Just divide 221 by 85. The answer was 2.6, or 2 3/5

Rama09 [41]3 years ago

7 0

2 because it's the closes to 221

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Question 1 of 5

melisa1 [442]

If one solution is -3-5i then the other solution will be -3+5i

So, Option A is correct.

Step-by-step explanation:

We need to find the other solution of the quadratic function, when one solution is -3-5i

The quadratic equation is of the form: $ax^2+bx+c$

The complex roots of the quadratic equation are of form: $a\pm bi$

So, if one solution is -3-5i then the other solution will be -3+5i

So, Option A is correct.

Keywords: Quadratic equations

Learn more about Quadratic equations at:

#learnwithBrainly

5 0

3 years ago

The mean salary of actuaries is LaTeX: \mu=\$100,000????=$100,000 and the standard deviation is LaTeX: \sigma=\$36,730????=$36,7

krek1111 [17]

Answer:

The lower limit of 95% confidence interval is 99002.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = $100,000

Sample mean, $\bar{x}$ = $111,000

Sample size, n = 36

Alpha, α = 0.05

Population standard deviation, σ = $36,730

First, we design the null and the alternate hypothesis

$H_{0}: \mu = \$100,000\\H_A: \mu \neq \$100,000$

We have to find the lower limit of the 95% confidence interval.

95% Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$111000 \pm 1.96(\dfrac{36730}{\sqrt{36}} )\\\\ = 111000 \pm 11998.4667 \\= (99001.5333,122998.4667)\\ \approx (99002,122999)$

The lower limit of 95% confidence interval is 99002.

6 0

4 years ago

Triangle ABC is reflected over the y-axis. The coordinates of

Ira Lisetskai [31]

I am Pretty sure it’s b but I wouldn’t be 100%

3 0

3 years ago

Find the common differece of the sequence: 2,9,16,23

riadik2000 [5.3K]

So if 2 is the first term then if n=1 then n+1=sequence so far but

second term is 9 so if n=2 then the 2nd term=9
you must use trial and error to find
so it is
7n-5 so if n=1 then
7(1)-5=7-5=2

if n=2 then
7(2)-5=14-5=9
sucess

the equation is 7n-5

4 0

3 years ago

Read 2 more answers

explain the pattern used to find an answer when you multiply or divide a whole number by a power of 10

scoray [572]

When you multiply or divide a whole number by a power of ten just add the zeros. 5 to the 100000 power is 500000. Five zeros. Hope this helps. Just a little trick and pattern I noticed which helps. :)

8 0

4 years ago