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Gnoma [55]
4 years ago
13

What is the product (2x-1) (x+4)

Mathematics
2 answers:
max2010maxim [7]4 years ago
6 0

2x^2+7x-4

you need distribute all the numbers in parenthesis.


Liula [17]4 years ago
4 0
You need to factor it out you would get 2x^2+7x-4 this would be your answer 
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A cylinder has volume 45 pie and radius 3. What is its height?
liraira [26]

Answer:

5 units

Step-by-step explanation:

The <u>volume of the cylinder</u> is the area of the circle multiplied by it's height. Therefore, the volume of the cylinder is πr² × h, which when simplified, gives us πr²h. Let's substitute the volume and the radius in the formula to find the height.

⇒ πr²h = Volume of cylinder

⇒ (π)(3²)(h) = 45π

Now, simplify the equation to evaluate the area of the cylinder.

⇒ (π)(3²)(h)/(3²)(π) = 45π/(3²)(π)

⇒ (h) = 45π/(9)(π) = 45/(9) = 5 units

7 0
3 years ago
The function f(x) = 2x + 210 represents the number of calories burned when exercising, where x is the number of hours spent exer
Alex787 [66]

This means 339 calories burned while combining diet with 1 hour of exercise

Step-by-step explanation:

Given the functions as:

f(x)=2x+210  

g(x)=2x+125 then

(f+g)(x) = 2x+210 +2x+125 = 4x +335

(f+g)(1) = 4(1)+335

           =339

This means 339 calories burned while combining diet with 1 hour of exercise

Learn More

Functions :brainly.com/question/3122826

Keywords : function, calories,exercising, deficit

#LearnwithBrainly

3 0
4 years ago
Read 2 more answers
3. Write and solve an equation to
Anna71 [15]

Answer:

x = 27

Step-by-step explanation:

Given

The attached figure

Required

Solve for x

3x and 45 are supplementary angles

So:

3x + 45 = 180

3x =- 45 + 180

3x =135

Solve for x

x = 135/5

x = 27

8 0
3 years ago
Given a circle with a diameter of 4, which equation expresses π as the ratio of the circumference of a circle to its diameter?
sashaice [31]
4*pi=C
is the formula (d*pi=C)
4 0
3 years ago
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Help me out please !!!!!!!!!!!!!
rodikova [14]
Answer
1. 87.96
2. 1130.97
5 0
3 years ago
Read 2 more answers
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