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Aleks [24]
3 years ago
5

Two questions please help

Mathematics
1 answer:
3241004551 [841]3 years ago
3 0
Well just think 747 divided by 9
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What is the rate of change from x = 0 to x = pi over 2?
nikdorinn [45]
The answer is b hope it helps
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3 years ago
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duke and donna each have 10 coins. all coins are either dimes or quarters. duke has 5 quarters. donna has 60 c more than duke.ho
zepelin [54]
If duke has 5 quarters that means he has 5 dimes making a total of $1.75 
if donna has 60 cents more than him she has a total of $2.35 
to figure out the number of quarters she has just dived $2.35 by .25 cents 
she has 9 quarters and 1 dime.
5 0
3 years ago
PLEASE HELP
Neko [114]

Answer:

55.5 square feet

Step-by-step explanation:

so the dog house consists of 4 walls, two roof sections, and two triangle bits to make the roof pointy (I'm sure they have a name but I don't know what it is lol) Of the walls there would be 2 of the longer walls and 2 of the shorther ones. Knowing this we just have to add together the area of each part to find the total surface area.

So starting with the walls:

two of them are 4 feet by 2 feet.

The area of a rectangle is just length x width

so those two would have an area of 8 ft^2

and the other two are 3 feet by 2 feet so they would have an area of 6 ft^2

the roof sections are also rectangles with dimensions of 4 feet by 2.5 feet

4x2.5=10 so each side of the roof has a surface area of 10 ft^2

now the triangle parts have a base of 3 feet and a height of 2.5 feet

the formula for area of a triangle is base x height / 2

3x2.5=7.5

7.5/2= 3.75

now we add them together

8+8+6+6+10+10+3.75+3.75=55.5

so the total surface area is 55.5 square ft

8 0
2 years ago
What are the solutions of the equation x6 – 9x3 + 8 = 0? Use u substitution to solve.
Natalka [10]
X6 – 9x3 + 8 = 0
let u = x^3
u^2 - 9u + 8 = 0 
(u-8)(u-1) = 0
u = 1,8
back substitute 
1 = x^3
8 = x^3

<span>x = 1 , 2</span>
4 0
3 years ago
A recipe for bread calls for 4 1/4 cups of flour. Which expression gives the number of cups offlour needed if you want to make 3
stiv31 [10]
14 and 7/8 cups of flour
7 0
3 years ago
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