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2 years ago

Determine how many real square root of 49 has.explain. please help me for explain

Mathematics

2 answers:

CaHeK987 [17]2 years ago

7 0

49 only has one square root, which is 7. There is no other number that you can multiply by itself to get 49

REY [17]2 years ago

3 0

49 has one square root. 7 is the square root of 49. 7 times 7 is 49. 7 squared is 49. That is why 49 has one root.

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Diana invested $3000 in a savings account for 3 years. She earned $450 in interest over that time period. What interest rate did

In-s [12.5K]

$\bf \qquad \textit{Simple Interest Earned}\\\\
I = Prt\qquad 
\begin{cases}
I=\textit{interest earned}\to &\$450\\
P=\textit{original amount deposited}\to& \$3000\\
r=rate\to r\%\to \frac{r}{100}\\
t=years\to &3
\end{cases}
\\\\\\
450=3000\cdot r\cdot 3\implies \cfrac{450}{3\cdot 3000}=r\implies \cfrac{1}{20}=r
\\\\\\
r\%\implies \cfrac{1}{20}\cdot 100\implies r=\stackrel{\%}{5}$

5 0

3 years ago

Read 2 more answers

Replace with <,>, or = to make a true statement: 2^5 4^2

Crank

Answer:

2^5>4^2

Step-by-step explanation:

${2}^{5} > {4}^{2} \\ 32 > 16$

hopefully this makes sense

3 0

2 years ago

16 POINTS!

posledela

Answer:

The mean is: 85

Step-by-step explanation:

First you need to add everything up :

1 * 2 = 2

2 * 1 = 2

3 * 3 = 9

4 * 5 = 20

5 * 4 = 20

6 * 3 = 18

7 * 2 = 14

(I multiplyed them all first because i was fast than doing 4+4+4+4+4 because its the same as 4 * 5)

then add them all up 2+2+9+20+20+18+14=85

Answer:

The median is: 4

Step-by-step explanation:

Get the data in NUMERICAL ORDER (smallest to largest), then eliminate the extremes until we're at the middle. (basically chopping off the end till you get to the middle) Therfore The answer would be 4.

Answer:

The mode would be: 4

Step-by-step explanation:

The mode is Get the data in NUMERICAL ORDER, and see which value is the most frequent (we can have more than one mode).

Answer:

25%

Step-by-step explanation:

firs you do 5 divided by 20 because there are 20 x's. this will = 0.25

0.25 = 25%

I hope I get brainiest. Sorry for taking forever. Have a nice day!

4 0

2 years ago

Express -23 in the form bi where b is a real number TIME SENSITIVE

balu736 [363]

Answer:

Step-by-step explanation:

i stands for square root of negative 1. If you multiple i and square root of 23 you will end up with the original

4 0

2 years ago

An inspector samples four PC’s from a steady stream of computers that is known to be 12% nonconforming. What is the probability

yarga [219]

Answer: 0.067

Step-by-step explanation:

Binomial distribution formula :-

$P(X)=^nC_xp^x(1-p)^{n-x}$ , here P(x) is the probability of getting success in x trials , n is total number of trials and p is the probability of getting success in each trial.

Given : n = 4 , p = 12 % = 0.12 and x =2

Then , $P(2)=^4C_2(0.12)^2(1-0.12)^{4-2}$

$\Rightarrow\ P(2)=\dfrac{4!}{2!2!}(0.12)^2(0.88)^2=0.06690816\approx0.067$

∴ The probability of selecting two nonconforming units in the sample = 0.067

3 0

3 years ago