2 years ago

What is the value of b in the equation 45 x -b

Mathematics

1 answer:

UNO [17]2 years ago

6 0

Answer:

Step-by-step explanation:

if 45x-b is an equation then b value is the y coordinate of y-intercept (where graph touches the y axis)

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A pile of earth removed from an excavation is a cone measuring 6ft high and 30ft across its base. How many trips will it take to

nignag [31]

Answer: 14

Step-by-step explanation:

Given

Excavation cone measures

height $h=6\ ft$

Diameter $d=30\ ft$

Truck can dump $125\ ft^3$ at a time

The volume of a cone is

$V=\dfrac{1}{3}\pi r^2h$

Putting values

$\Rightarrow V=\dfrac{1}{3}\times \pi\times 15^2\times 6\\\Rightarrow V=1413.9\approx 1414\ ft^3$

No of trips(N) required to accumulate this much volume is given by

$\Rightarrow N=\dfrac{1414}{125}=13.3\approx 14$

Therefore, 14 trips are necessary to accumulate a cone of volume $1414\ ft^3$

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2 years ago

Katie it making necklaces. She has 1/3 of blue ribbon 3/4 yard of pink ribbon & 7/8 yard of green ribbon. write the ribbon l

german

In order from greatest to least, the ribbons go

7/8 (Green)
3/4 (Pink)
1/3 (Blue)

This because 7 out of 8 is a larger number than 3 out of 4, and 3 out of 4 is greater than 1 out of 3.

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3 years ago

Which expressions are equivalent to 7x – 14? Check all that apply.

makvit [3.9K]

Answer:

Answer is 3x – 14 + 4x

3x – 14 + 4x = 7x - 14

Step-by-step explanation:

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2 years ago

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faust18 [17]

The answer is (-4, 5).

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3 years ago

PLEASE HELP ME I CANT FAIL I WILL GIVE YOU SO MUCH POINTS IF YOU HELP! What is the product of -2 2/5 and -3 5/6?

olga55 [171]

Answer:

The answer should be 9 1/5 i am sorry if i am incorrect, im praying for u rn lol

Step-by-step explanation:

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2 years ago

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