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Mandarinka [93]
3 years ago
10

Can somebody help me

Mathematics
1 answer:
nata0808 [166]3 years ago
8 0

Answer:

AB ≈ 3.14 ft

Step-by-step explanation:

The arc AB is calculated as

AB = circumference of circle × fraction of circle

    = πd × \frac{45}{360} ( where d is the diameter )

    = 8π × \frac{1}{8}

   = π

   ≈ 3.14 ft ( to 2 dec. places )

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Help pleaseee I need some assistance right now
Brilliant_brown [7]

Answer:

69°

Step-by-step explanation:

if CA and AT are congruentsides, this means that the angle of C and T must also be the same.

In order for a triangle to be a triangle, they must meet the angle of 180 degrees.

We know CAT is = to 42

So we subtract 42 from 180 = 138 degrees

we then divide 138 by 2 and we get 69

angles c + t are both 69 degrees

8 0
3 years ago
Read 2 more answers
Dave also starts a new job, but his hourly pay starts at $7.25. Suppose that he gets a 40¢-per-hour raise each year.
pshichka [43]

Answer:

$8.5

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.

<em>Dave also starts a new job, but his hourly pay starts at $7.25. Suppose that he gets a 40¢-per-hour raise each year. What will Vicky’s hourly pay be in 3 years</em>

My answer:

Given:

  • Rate per hour: $7.25.
  • Hour raise each year: 40¢-

=> the percentage of rate increasing:

(40¢ / $7.25)*100%

= (40¢ / 7.25*100¢)*100%

= 5.5%

What will Vicky’s hourly pay be in 3 years

This is a compound growth problem.  The formula is:

F=P(1+r)^t

<=> F = =7.25(1+0.055)^3

<=> F = $8.5

So the rate after three years is $8.5

Hope it will find you well.

4 0
3 years ago
A 25 gram sample of a sample that's used for drug research has a k value of 0.1205
ra1l [238]
N=12.5(at time t=t) Here half life
No=25
K=12.05
Simple exponential equation where you need to calculate
Your answer should be 5.75225876
4 0
3 years ago
What are the x-intercepts of the graphs of the function shown below y=x^2+4x-32?
stellarik [79]
They are  x = 8 and x = -4
5 0
4 years ago
Is this table proportional or non-proportional?
Jlenok [28]

Answer:

Proportional

Step-by-step explanation:

Proportional functions can be written as y=kx, where k is some constant of proportionality. Plugging in (x,y) pair into this function will yield a constant of proportionally of k=\frac{3}{2} and since this constant is maintained through all the coordinate pairs in the table, the table is proportional.

3 0
3 years ago
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