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Nina [5.8K]
3 years ago
8

Idk which one it is can someone tell me :(

Mathematics
2 answers:
aliya0001 [1]3 years ago
8 0

Answer:

A

A would be the best answer since it asking how much did it change.

GenaCL600 [577]3 years ago
7 0
I believe it’s B or C
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Keith earns $42.00 in 3 hours. How much would he earn in 10 hours? A. $135.00 B. $140.00 C. $84.00 D. $112.00
xeze [42]
The answer is B. $140
7 0
2 years ago
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If tge angle at the center is 62° and the radius is 12 cm.. find the length of arc​
insens350 [35]

Answer:

Step-by-step explanation:

r = 12 cm

Theta = 62

Length of arc = \frac{theta}{360}*(2\pi r)

                      =\frac{62}{360}*2*3.14*12

                      = 12.98 cm

6 0
3 years ago
Which of the following expressions is the conjugate of a complex number with −5 as the real part and 4i as the imaginary part? 5
ladessa [460]
The mathematical expression of the given complex number above is -5 + 4i. The conjugate of this complex number is that which has an opposite operation. The given is an addition operation. That is -5 - 4i. Therefore, the answer is the third among the choices. 
4 0
3 years ago
Emmy throws a doggy toy up in the air. The path of the toy is modeled by the function f(x)=−x^2+4x+5, where x is the number of f
Molodets [167]

Answer:

9feet

Step-by-step explanation:

Given the path of the toy modeled by the function f(x)=−x^2+4x+5, where x is the number of feet the toy is from Emmy and f(x) is the height of the toy.

AT maximum height, the velocity of the toy will be zero. Hence;

df(x)/dx = 0

-2x + 4 = 0

-2x = -4

x = -4/-2

x = 2

Get the maximum height;

Substitute x = 2 into the given function;

f(x)=−x^2+4x+5

f(2)=−2^2+4(2)+5

f(2) = -4+8+5

f(2) = 9feet

Hence the maximum height of the toy is 9feet

4 0
3 years ago
Which expressions have a quotient of 4/5​
goblinko [34]

Answer:

  • b and e

Step-by-step explanation:

a. 5/2 ÷ 1/2  =

  • 5/2*2 =
  • 5

b. 6/9 ÷ 5/6

  • 2/3*6/5 =
  • 2*2/5 =
  • 4/5

c. 3/6 ÷ 2/5

  • 1/2 * 5/2 =
  • 5/4

d. 7 1/2 ÷ 6 =

  • 15/2*1/6 =
  • 5/(2*3) =
  • 5/6

e. 1 1/3 ÷ 1 2/3=

  • 4/3 ÷ 5/3 =
  • 4/3 * 3/5 =
  • 4/5
5 0
2 years ago
Read 2 more answers
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