All categories

3 years ago

Can someone please answer. There is one problem. There's a picture. Thank you!!!!

Mathematics

2 answers:

nadya68 [22]3 years ago

8 0

Circumference of circle = πd, where d = diameter.

C = π*7.5 = 7.5π ≈ 23.56

C ≈ 23.56

vlabodo [156]3 years ago

3 0

Radius = diameter/2 = 7.5/2 = 3.75
circumference = 2 pi r
= 2 (3.14) (3.75)
= 23.56

You might be interested in

Find the value of n so that the line perpendicular to y=-3x - 6 passes through the points (n, - 12) and (4,8).

sergiy2304 [10]

Just use an online calculator! i promise you they work better than this.

3 0

4 years ago

Solve x2 + 2x = 4 for x by completing the square. x equals plus or minus square root of 5 plus 1 x equals plus or minus square r

steposvetlana [31]

Answer:

x equals plus or minus square root of 5 minus 1

Step-by-step explanation:

we have

$x^{2} +2x=4$

Divide by 2 the coefficient of the x-term

$2/2=1$

squared the number

$1^2=1$

Adds both sides

$x^{2} +2x+1=4+1$

$x^{2} +2x+1=5$

Rewrite as perfect squares

$(x+1)^{2}=5$

take the square root both sides

$x+1=(+/-)\sqrt{5}$

$x=(+/-)\sqrt{5}-1$

therefore

x equals plus or minus square root of 5 minus 1

4 0

3 years ago

13) What is the simple interest and total amount earned on $4345 with an interest rate of

Annette [7]

Answer:

173.80 interest, 4518.80 total

Step-by-step explanation:

4345 X .03(3%)=130.35/year

130.35/12=10.8625/month

10.8625 x 16 months = 173.80 interest over 16 months

4345+173.80=4518.80 total amount

6 0

3 years ago

The height of an airplane during a landing is given by 22,000+(−480t) where t is the time in minutes.

Elis [28]

Literally plugging in the time for each value, we can plug in 5 for t to get
22000+(-480*5)=22000+(-2400)=22000-2400=19800
Plugging in 10, we get 22000+(-480*10)=22000-4800=17200. We can turn 22000+(-480*10) into 22000-(480*10) using the distributive property, and adding a negative number to something essentially means to subtract that number.

I challenge you to do t=15 and 20 on your own!

5 0

4 years ago

Aircraft A has 108 more seats than aircraft B. If their total number of seats is 316, find the number of seats for each aircraf

ioda

Answer:

3x-x+2=4

Hope this helps!

6 0

4 years ago

Read 2 more answers