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tangare [24]
3 years ago
6

Evaluate 5^2 + 3 x 7 + 12 Help me plz

Mathematics
1 answer:
jenyasd209 [6]3 years ago
6 0

Answer:

58

Step-by-step explanation:

5^2 = 5 x 5 = 25

3 x 7 = 21

25 + 21 + 12

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Lin's sister has a checking account. If the account balance ever falls below zero, the bank charges her a fee of $5.95 per day.
VladimirAG [237]

Answer: No, the bank will not keep charging her the $5.95 after the deposit is made.

Step-by-step explanation:

Today, Lin's sister's balance is -$2.67

She gets charged $5.95 per day.

There are 14 days until she can charge some money in the bank account, so the bank will charge $5.92 14 times

So her balance after 14 days will be:

Balance = -$2.67 - $5.95*14 = -$85.97

When she charges the $430 in the account, her balance will be:

Balance = -$85.97 + $430 = $344.03

So now she has a positive balance, which means that the bank does not charge her anymore.

5 0
3 years ago
the interest on an investment is $125.08. if the principal was invested at 6% for years, what was the principa
Usimov [2.4K]

Answer:

Option C is correct.

Step-by-step explanation:

Interest = $ 125.08

Rate = 6 %

We know that interest is given by

S.I. = \frac{P R T}{100}

125.08 = \frac{P (6)(1)}{100}

P = $ 2084.67

This is the value of interest. Thus option C is correct.

7 0
3 years ago
To test whether an integer, $n$, is prime, it is enough to be sure that none of the primes less than or equal to the square root
IrinaK [193]

Answer:

the largest divisor is less than the square root of that number

Step-by-step explanation:

Pick any number between 900 and 950 . For example I choose 937 . Now taking the square root of 937 would give 30.61

So divide 937 with all the primes less  than 30.61

937/2, 937/3, 937/5,...................937/29

29 would be the largest divisor which is less than the square root of 937 .

29< 30.61

But if you check 937 does not divide wholly with any of the primes hence it is a prime number itself.

If any number such 925 is chosen and it gets divided wholly by another prime like 5

925 /5= 185  so it is not a prime number

5 0
3 years ago
# - A circle has an area of approximately
daser333 [38]

Answer:

The area of the new circle is 804.57 cm^2

Step-by-step explanation:

In this question, we are interested in calculating the area of the new circle of the radius of the old circle was doubled.

Let’s calculate the former radius first;

Mathematically;

Area of a circle = π * r^2

Thus;

201.06 = π * r^2

r^2 = 201.06/π

r^2 = 63.999

r = √63.99

r = 8 approximately

Now let’s double this radius and it becomes 2 * 8 = 16 cm

The new area will be ;

22/7 * 16 * 16 = 804.57 cm^2

3 0
3 years ago
A television set that retails for $600 is markdown by 20%. at checkout, an additional 20% is marked off the price of the tv. Fin
Ivahew [28]

Answer:

$360

Step-by-step explanation:

i added 20%+20%=40% so you turn 40% into.40 then you multiply 600×.40 to get 240 since it is discounted you have to subtract so you subtract 600-240 to get 360 which is your final product

8 0
4 years ago
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