A square has a side of 6.25 feet. What is the area in square feet? Round to the correct significant digits.

Answers

Answer 1

Answer:

The solution to this question is 39.0625.

This is because you will need to multiply the width by height. As this is in square feet it will be irrespective of which two sides we choose.

The calculation that will need to be done is the following :

6.25ft X 6.25ft which will equal 39.0625.

6.25 has three significant digits so rounding 39.0625 off to three significant digits is 39.1 square feet

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Enter the equation of the circle described below.

Center (5, 2), radius = 3

Answers

Equation of the circle;
$(x-a)^(2) + (y-b)^(2) = r^(2)$
a=5, b=2 and r= 3
$(x-5)^(2) + (y-2)^(2) = 3^(2)$

for a circle with center (h,k) and radius, r
the equaiton is
$(x-h)^2+(y-k)^2=r^2$

so

center=(5,2), radius=3

$(x-5)^2+(y-2)^2=3^2$
$(x-5)^2+(y-2)^2=9$

Determine the smallest integer value of x in the solution of the following inequality.4x – 1 > 18

Answers

Answer:

x = 5

Step-by-step explanation:

You need to find de value of x.

4x - 1 = 18

4x = 18 + 1

4x = 19

x = 19/4

x = 4,75 but, the questions says: smallest integer value, so, the smallest is the integer number more near of 4,75, which is 5.

testing:

x = 5

4*5 - 1 > 18

20 -1 > 18

19 > 18 TRUE

x = 4

4*4 - 1 > 18

16 - 1 > 18

15 > 18 FALSE

Two equations are given below:a − 3b = 4
a = b − 2

What is the solution to the set of equations in the form (a, b)?

(−2, −2)

(−3, −1)

(−9, −7)

(−5, −3)

Answers

Hello,

a-3b=4 (1)
a-b=-2 (2)

(1)-(2)==> -2b=6
=>b=-3 and a=-2+(-3)=-5

Answer D

Proof
-5+3=-2
-5-3(-3)=4

How many real solutions does the equation below have?3x^2 − x + 5 = 0

PLEASE HELP ME ASAP