8a+3b-10+c the power of 2 when a=2,b=5 and c=4

Answers

Answer 1

Answer: (16 + 15 -10 +4) = 25
25 squared is 625

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Multipule choiceWhich numbers belong to the range of the relation {(1, 0), (4, –3), (–3, 2), (5, 0)}?

Choose all answers that are correct.

A.
5

B.
2

C.
0

D.
–3

Answers

0,-3,2 ⇒ B,C,D
............................

You drive 15 miles in one-fourth hour. What is your average speed?

Answers

you have to multiply 15 by 4 to get 60. The speed per hour is 60.

Are some integers whole numbers?

Answers

Yes, all whole numbers are integers, no matter negative or positive.

yes weather it be negative or positive they're both whole numbers.

Find the exact circumference. D=19.7 cm

Answers

The exact circumference is 19.7 pi. It can't be completely written with numbers, because pi can't.

C= D * $\pi$
D= 19.7cm

Of 130 patients in a hospital, 70% of them are checked in for the flu. How many patients are not checked in for the flu?

Answers

First let's find the number of patients checked in:
$x = (130)0.70 \n x = 91$
we know that 91 patients were checked in, so we can find how many were not:
$z = 130 - 91 \n z = 39$
39 patients were not checked in for the flu.

39!

Explanation:

70% of 130 is 91

70 x 130/

100

= 91 you do 70 time 130 divided by 100 which gets you to 91 so that means 91 patience have the flu to find how many don't have the flu you subtract 130-91 that gives you 39!

The total weight of 30 bags of flour and 4 bags of sugar is 42.6 kg. If each bag of sugar weighs 0.75 kg, what is the weight of each bag of flour?

Answers

The answer is: Each bag of flour weighs 1,32 kg.

If we the total weight of the bags is given, and we know both the number of bags of flour and sugar, and we also know the weight of each bag of sugar, then we have to find the unknown, which is X. 30 times X plus 4 times the weight of a bag of sugar would equal 42.6kg. Next step is to put the unknown on one side and the known values on the other side. We have 30 times X equals 42.6 minus 4 times 0.75.
To find X we need to divide the value with 30, or to sum up

30X + 4*0.75 = 42.6
30X + 3 = 42.6
X = (42.6 - 3) / 30
X = 1.32 kg

The weight of each bag of flour = 1.32 kg

Further explanation

The division operation is one of the basic arithmetic operations

Common signs used are $\large{\boxed{:}}}$ or $\large{\boxed{\slash}}$

The division is written by placing the numerator above the denominator with a horizontal line between them or use a slash with the numerator's position and the denominator is parallel

The division is actually an iterative subtraction operation (as many as the number of divisors)

Division is the opposite of multiplying

The general form of division can be stated by:

$\large{\boxed{\bold{divident:divisor=quotient+remainder}}$