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kow [346]
2 years ago
12

Help on this question

Mathematics
1 answer:
malfutka [58]2 years ago
6 0

Step-by-step explanation:

always write what you know

circumference

U = 2 x pi x r

r = d/2

U = 39.25

rearrange and solve for r

U / (2 x pi) = r

solve for diameter

2r = d

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HELPPPP PLS!! TY
Leya [2.2K]

Answer:

B at ordered pair 1, 2, hope this helped

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
What is the quotient in simplified form? State any restrictions on the variable. Show Work.
photoshop1234 [79]
    a+2           a +1
= -------  / ------------------
    a -5      (a - 3)(a - 5)

    a+2           (a - 3)(a - 5)
= -------  *  ------------------
    a -5              a +1

    (a+2)(a - 3)
= ----------------
        a +1

a NOT equal 5 and -1
5 0
3 years ago
Read 2 more answers
F(x) = x2+3x+2 x2+5x+4 Why is there no zero at x = –1?
dmitriy555 [2]
You could rewrite F(x) as

\dfrac{x^2+3x+2}{x^2+5x+4}=\dfrac{(x+1)(x+2)}{(x+1)(x+4)}

and be tempted to cancel out the factors of x+1. But this cancellation is only valid when x\neq-1.

When x=-1, you end up with the indeterminate form \dfrac00, which is why -1 is not a zero.
7 0
3 years ago
Can any one help me pls I'm not good at math:(<br>the graph of a function is shown on the grid​
melamori03 [73]

Answer:

D is the correct answer

Step-by-step explanation:

The coordinates of the x axis is always listed first.

On the x axis the line was less than one and more than zero leaving the fraction as the only option.

hope it helps

have a great day

:)

6 0
2 years ago
Makayla and Caroline go to the movie theater and purchase refreshments for their friends. Makayla spends a total of $49.00 on 9
gizmo_the_mogwai [7]

Answer:

Let the cost of each popcorn bag be x and cost of each  drink be y

Cost of 9 bags of Popcorn= 9 x

Cost of 8 drinks be = 8 y

Total money spent by Makayla = $ 49

According to Question

9 x + 8 y= 49..................... equation (1)

Similarly , cost of 3 popcorn = 3 x

Cost of 3 drinks= 3 y

Total money spent by Caroline= $ 17.25

According to Question

3 x+ 3 y= $ 17.25...................equation(2)

We can solve above equation by using elimination method

Multiply equation (2) by 3

9 x + 9 y =  51.75..................equation(3)

9 x + 8 y= 49..................... equation (1)

Subtraction equation (1 ) from equation(3)

y = 2.75

put value of y  in any equation (2)

we get

3 x + 3 × 2.75 = 17.25

3 x +   8.25 = 17.25

3 x = 17.25 - 8.25

3 x = 9

x = 3

Hence, cost of each popcorn bag $ 3 cost of each popcorn bag is also $ 3 (approx)

5 0
2 years ago
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