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2 years ago

Please answer this question

Mathematics

1 answer:

Anarel [89]2 years ago

8 0

The answer is C. 4.1¯6

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On one day a Plumber Joe earned $80 on a plumbing job. Out of his earnings he spent $6.85 on tea and snacks, $5.50 on food and $

In-s [12.5K]

Answer:

Joe saved 68.25

Step-by-step explanation:

Subtract 6.85 from 80, you get 73.15

Subtract 5.50 from 73.15 and you get 67.65.

Subtract 21.40 from 67.65 and you get 46.25.

Add 22 to that amount, you get 68.25.

P.S

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<em><u>~Faker/Tosrel</u></em>

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3 years ago

Find an equation that models the path of a satellite if its path is a hyperbola, a = 55,000 km, and c= 81,000 km. Assume the cen

elena-14-01-66 [18.8K]

Answer:

$\frac{x^2}{55000^2} - \frac{y^2}{59464^2} =1$

Step-by-step explanation:

the transverse axis is horizontal.

so its a horizontal hyperbola

Center is the origin so center is (0,0)

Equation of horizontal hyperbola is

$\frac{x^2}{a^2} - \frac{y^2}{b^2} =1$

Given a= 55000 and c= 81000

c^2 = a^2 + b^2

81000^2 = 55000^2 + b^2

subtract 55000^2 on both sides

b = sqrt(81000^2 - 55000^2)= 59464.27

now plug in the values

$\frac{x^2}{55000^2} - \frac{y^2}{59464^2} =1$

7 0

2 years ago

What is logo e' rewritten using the power property?

Vikki [24]

Answer: flog6e

Step-by-step explanation:
The power property of logarithm rule is :

Logamn = nlogaM

Applying the logarithm of power rule in the given expression we have:

Log6eF= flog6e

The second option that is flog6e is the right option among all the given options.

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2 years ago

(9x+4) what is the answer hurry taking a test

igor_vitrenko [27]

Answer:

9x+4

Step-by-step explanation:

remove the parentheses

8 0

3 years ago

Read 2 more answers

The value of which of these expressions is closest to e?

mars1129 [50]

Answer:

Step-by-step explanation:

Given: expressions

To find: the expression whose value is closest to e

Solution:

Value of e is 2.718

$\left ( 1+\frac{1}{19} \right )^{19}=\left ( \frac{20}{19} \right )^{19}=2.65\\\left ( 1+\frac{1}{22} \right )^{22}=\left ( \frac{23}{22} \right )^{22}=2.659\\\left ( 1+\frac{1}{20} \right )^{20}=\left ( \frac{21}{20} \right )^{20}=2.653\\\left ( 1+\frac{1}{21} \right )^{21}=\left ( \frac{22}{21} \right )^{21}=2.656$

Therefore, value 2.659 is closest to the value of e.

So, option B. is correct.

7 0

3 years ago