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3 years ago

What is (3+x)(4+x) in standard form ?

Mathematics

1 answer:

Ray Of Light [21]3 years ago

5 0

Answer:

x^2+7x+12

Step-by-step explanation:

multiply the parenthesis 3 x 4 + 3x + 4x + x + x

12 + 3x + 4x + x^2

12 + 7x + x^2

then order them like the answer

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MR is the angle bisector of

gtnhenbr [62]

Answer:Angle Bisector Theorem. ... Now picture one of the triangle's angles being split into two equal smaller triangles. That line that was used to cut the angle in half is called the angle bisector. When you do this to a triangle, it actually divides the triangle's sides in a unique way.

Step-by-step explanation:

6 0

3 years ago

Roll dice and flip coin

scZoUnD [109]

Roll dice and flip coin:
Probability of rolling a cube and getting a 3 = 1/6 .
Probability of flipping a coin and getting HEADS = 1/2 .

Probability of both = (1/6) x (1/2) .
You do the multiplication.

4 blue, 2 green, 6 red
Probability of a blue on the first draw = 4 out of 12 marbles = 1/3 .
Without putting the blue back in ...
Probability of a red on the next draw = 6 out of 11 marbles = 6/11 .

Probability of both = (1/3) x (6/11) .
You do the multiplication.

8 0

3 years ago

a number is multiplied by 3 and then 7 is added.The result is doubled ,giving the answer 80.Using n to represent the original nu

Darina [25.2K]

Answer:

2(n*3 + 7) = 80

Step-by-step explanation:

2(n*3 + 7) = 80

n*3 + 7 = 40

n*3 = 33

n = 11

5 0

4 years ago

if the volume of an open box with a square base is 5 cubic feet, write the surface area, S, of the box as a function of x, the l

AleksandrR [38]

Check the picture below.

the box is an open box, meaning the top is open, so that is not taking up area, so is not part of the surface area.

so can just get the area of the bottom, and the sides and sum them up, keeping in mind that the bottom is just an area of x² and the sides are just 4 rectangles of area h*x.

$\bf SA=\stackrel{\textit{bottom}}{(x\cdot x)}~~+~~\stackrel{\textit{4 lateral sides}}{4(hx)}\implies 
SA=\stackrel{\textit{bottom}}{x^2}~~+~~\stackrel{\textit{4 lateral sides}}{4\left(\cfrac{5}{x^2}\cdot x \right)}
\\\\\\
SA=x^2~~+~~4\cdot \cfrac{5}{x}\implies SA=x^2+\cfrac{20}{x}$

8 0

3 years ago

If in August Bruiser weighed 84 pounds, how<br> could he get back to that weight in October?

Margaret [11]

Answer:

eating healthy

Step-by-step explanation:

eating healthy foods helps you maintain the weight you want

4 0

3 years ago