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3 years ago

Which two values of x are roots of the polynomial below? x2 + 3x - 5

Mathematics

1 answer:

lesya692 [45]3 years ago

3 0

Answer:

Step-by-step explanation:

The roots are the values of x for which x² + 3x - 5 = 0.

Quadratic formula:

x = [-3±√(3²-4(1)(-5))]/(2·1) = [-3±√29]/2

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Lucy has block letters that are in the shape of cubes with sides 2 3 foot long. She has a box which is 1 1 3 foot long, 2 3 foot

MrMuchimi

Complete question :

Lucy has block letters that are in the shape of cubes with sides 2 3 foot long. She has a box which is 1 1 3 foot long, 2 3 foot wide, and 2 3 foot tall. Find the number of block letters that will fit in the box.

Answer:

1/2

Step-by-step explanation:

Number of block letters that will fit in :

Volume of box ÷ volume of each letter cube

Volume of each letter cube = (side length)³ = (2/3)³ = 8/27 ft³

Volume of box = length * width * height

Volume of box = 1 1/3 * 2/3 * 2/3

Volume of box = 4/3 * 2/3 * 2/3 = 16 / 27 ft³

Therefore ;

8/27 ÷ 16/27

8/27 * 27/16

= 8/16

= 1/2

7 0

3 years ago

What is -11/4 plus -11/8

Valentin [98]

Answer:

-4.125

Step-by-step explanation:

4 0

3 years ago

Find the contrapositive for the following statement if you are in college, then you graduated from high school

Colt1911 [192]

Answer:

If you didn't graduate from High school ,Then you are not in college

Step-by-step explanation:

statement :

if you are in college, then you graduated from high school

In the given statement we have :

The Hypothesis is : you are in college

The conclusion is : you graduated from high school

in order to get the contrapositive ,

• first we switch the hypothesis and the conclusion

( H ⇒ C becomes C ⇒ H )

• Second, we negate the hypothesis and the conclusion.

Then

• first ,if you graduated from high school , then you are in college

• second , If you didn't graduate from High school ,Then you are not in college

4 0

2 years ago

Cassie has a box that is a cube with a side length of

Rus_ich [418]

Answer:

second box must be 192in^3

Step-by-step explanation:

its a cube so length width height is all the same therefore,

4×4×4= 64

now u need a 2nd box 3 times volume of 1st all u need to do is multiply

64×3= 192

7 0

3 years ago

Read 2 more answers

Solve the problems involving slope.

serg [7]

The slope is m = 2
“M” means slope
When you see a number in front of “x” that’s the slope in that case.

8 0

2 years ago