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2 years ago

Help pls

Mathematics

1 answer:

Umnica [9.8K]2 years ago

7 0

Answer:

Step-by-step explanation:

I think its C because its the only correct one htat has evidence to back it up

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You have a fishing line spool with an end that has an area of 20.0 cm2. How much fishing line do you need to wind around the spo

lana66690 [7]

<h3>Problem Solution</h3>

Assuming the spool is a cylinder and the circumference we're winding around is that of a circle with the given area, we can write the relation between circumference and area as

... C = 2√(πA)

10 times the circumference is then

... 10C = 20√(π·20 cm²) = 40√(5π) cm ≈ 159 cm

<h3>Formula Derivation</h3>

The usual formulas for circumference and area are

... C = 2πr

... A = πr²

If we multiply the area formula by π and take the square root, we get

... πA = (πr)²

... √(πA) = πr

Multiplying this by 2 gives circumference.

... C = 2√(πA) = 2πr

3 0

3 years ago

How are these two triangles related?

DerKrebs [107]

Answer: c

Step-by-step explanation:

they are similar but to be congruent they need to be the same and therefore can not touch like that

3 0

3 years ago

5. CD has an endpoint at (2, -1) and a midpoint at (8,3). Which measure is closest to the length of CD?

Alexus [3.1K]

Answer: C

Step-by-step explanation:

the equation for X is

$\frac{2+x}{2} =\frac{8}{1}$ use proportion to solve

2 + x = 16

x = 14

(14,y)

The equation for Y is

$\frac{-1+y}{2} =\frac{3}{1}$ use proportion to solve

-1 + y = 6

y = 7

(14,7)

now use the distance formula

(14,7) (2,-1)

which gets you 14.4 or C

8 0

1 year ago

Am solving this problem correct

cestrela7 [59]

A) The degree of the first term is... 1
$first \ term = 3t$
The degree of the second term is... 2
$second \ term = t^2$
The degree of the third term is... 4
$third \ term = t^4$

b) The leading term of the polynomial is... 7t⁴
The leading coefficient of the polynomial is... 7

c) The degree of the polynomial is... 4

6 0

2 years ago

Read 2 more answers

You receive a pay raise of 5%, then a cut of 5%. If your original salary is $45,000, what is your new salary after the raise and

Natali [406]

The salary after the raise is 47250 and the salary after the cut would just be the original salary

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3 years ago