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2 years ago

If f'(x) and g'(x) exist and

Mathematics

1 answer:

dem82 [27]2 years ago

7 0

not letting me add answer

Refer to the attachment

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Tim earns $12 per hour as head lifeguard at Sammy's Swim Park. As a first year lifeguard Jack earns 30% less than Tim, and as a

monitta

Tim = 12
Jack 1st = 12 - (12 x 0.30)

second year
Jim = 1 + x
Jack = x

12 - (12 x 0.30) =
12 - 3.6 = 8.4
Jack = $8.4 per hour

Tim = 8.4 + 1
Tim = $9.4 per hour

5 0

4 years ago

PLS HELP ILL GIVE BRAINLIEST

Alex17521 [72]

Answer:

1. 2 units

2. 1 unit

3. the center is (2,-2)

4. the center is (2,2)

Am also nnow stuck

3 0

3 years ago

Using compatible numbers What is 44.5 x 11 equal to?

emmainna [20.7K]

489.5 would be the answer :)

3 0

3 years ago

The following function is probability mass function. f left-parenthesis x right-parenthesis equals StartFraction 2x plus 1Over 2

lora16 [44]

Answer:

a) Mean = 2.6

B) Variance = 9.2

Step-by-step explanation:

We are given the following probability mass function in the question:

$F(x) = \dfrac{2x+1}{25}, x = 0,1,2,3,4$

a) Mean of random variable

$\mu = \displaystyle\sum x_iF(x_i)\\\\=0(\dfrac{1}{25}) + 1(\dfrac{2+1}{25}) + 2(\dfrac{4+1}{25}) + 3(\dfrac{6+1}{25}) + 4(\dfrac{8+1}{25})\\\\=\dfrac{3+10+21+36}{25} = \dfrac{70}{25} = 2.8$

b) Variance of the random variable

$\sigma^2 = \displaystyle\sum x_i^2F(x_i)\\\\=0^2(\dfrac{1}{25}) + 1^2(\dfrac{2+1}{25}) + 2^2(\dfrac{4+1}{25}) + 3^2(\dfrac{6+1}{25}) + 4^2(\dfrac{8+1}{25})\\\\=\dfrac{3+20+63+144}{25} = \dfrac{230}{25} = 9.2$

6 0

3 years ago

Write the inequality for the following: Five less than a<br> number is no less than 14.

bezimeni [28]

Answer:

X - 5 < or = 14

Step-by-step explanation:

The simplified way to write this is

X < or = 19

8 0

3 years ago