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2 years ago

Please help me! I need this due today!

Mathematics

2 answers:

Rashid [163]2 years ago

3 0

Answer:

21/8 or 2 5/8

(Edit: This is wrong)

Step-by-step explanation:

grigory [225]2 years ago

3 0

Answer:

13/24

hope it helped!!

tell me if you need an explanation

Edit:

Step 1 We can't subtract two fractions with different denominators. So you need to get a common denominator. To do this, you'll multiply the denominators times each other... but the numerators have to change, too. They get multiplied by the other term's denominator. So we multiply 7 by 3, and get 21. Then we multiply 1 by 8, and get 8. Next we give both terms new denominators 8 × 3 = 24. So now our fractions look like this: 21/24−8/24

Step 2 Since our denominators match, we can subtract the numerators. 21 − 8 = 13 So the answer is: 13/24

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Cos theta / sec theta -1 - sin theta / 1+cos theta = 2 cot theta

joja [24]

Step-by-step explanation:

<h3>Explanation is in the attachment </h3>

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3 0

2 years ago

The fee for a service call from a plumber can be modeled with the function C(h)= 75 + 20h, where C is the total cost of the serv

Lynna [10]

Answer:

20 ; $135 ; service charge for 3 hours spent is $135

Step-by-step explanation:

Given that :

Service fee equation model :

C(h)= 75 + 20h

C = total cost of the service call

h = number of hours the plumber spends working on the problem

The charge per hour is the gradient or slope of the linear equation. From the equation, the slope is of the equation is related to bx from. The general form of a linear equation where b = gradient or slope(charge per hour) and x = number of hours

bx = 20h

b = 20

Charge per hour = 20

C(3) = 75 + 20(3)

75 + 60 = 135

This means that total service call charge for a plumber who spends three hours fixing a problem is $135

6 0

3 years ago

What's the prime factor of 92 ?

mariarad [96]

Prime factors are multiplying numbers that cannot be divided into smaller numbers.
Let's break down 92.
Divide 92 by 2.
2 x 46.
We can still break this down.
Divide 46 by 2.
2 x 2 x 23.
This is your prime factorization of 92.
I hope this helps!

8 0

3 years ago

Read 2 more answers

If you want to buy an item in a store that costs $45.50 and is on sale for 10% off, then how much would the item actually cost y

dalvyx [7]

Answer:

$40.95

Step-by-step explanation:

Multiply 45.50 by 0.10 and get 4.55. 4.55 is the discount. Then subtract 4.55 from 45.50 and get 40.95

5 0

3 years ago

Read 2 more answers