Malorie can work 10 math problems in 3 minutes. At this rate, how many problems can she work in one hour?

A.
30

B.
60

C.
120

D.
200

Answers

Answer 1

Answer: I think The answer is D. Hope This Helps You!

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TRUE OR FALSE: Every diameter of a circle is a chord. Justify your answer using what you know about diameters and chords.

Answers

True.
A diameter is a line that goes across the whole circle and passes by the center.
A chord is any line segment that connects two points on the circumference.
Since the diameter is a line from one opposite end of the circle to the other, it is connect two points on the circumference, thus it is a chord.

3. The value of a professional basketball player's autograph rose 20% in the last year. It is now worth $300.00. What was it worth a year ago?

Answers

300.00*.2=60

300-60=240

final answer is $240.00

im not sure if this is right...but I believe the answer is A

PLEASE HELP ME I BEG YOU I REALLY NEED!!!!

Answers

polynomial that represents a difference in cubes.

x³ - 64 = 0
x³ = 64
∛x³ = ∛64
x = 4

Correct Steps for factoring the polynomial 5x³ - 40
5(x³ - 8)
5((x)³ - (2)³)
5(x - 2)(x² + 2x + 4)

To check:
5(x - 2)(x² + 2x + 4)
(5x - 10) (x² + 2x + 4)
5x(x² + 2x + 4) - 10(x² + 2x + 4)
5x³ + 10x² + 20x - 10x² - 20x - 40
5x³ + 10x² - 10x² + 20x - 20x - 40
5x³ - 40

Difference of cubes: a³ - b³

A) x³ - 64 = x³ - 4³

In B, 4 is not a cube number.

In C, this is the sum of a cubes. 8x³ + 27 = (2x)³ = 3³

In D, 4 is not a cube number.

Your answer is A.

Question #6

5x³ - 40
5[x³ - 8]
5[x³ - 2³]

Note: x³ - y³ = (x-y)(x² + xy + b²)

5[(x-2)(x² + 2x + 2²)]
5[(x-2)(x² + 2x + 4)]

Your answer is B.

Cam you look at this picture. I really need help for #2, #5, #8, #9, #10

Answers

# 2 is true
# 5 is 0.375
#8 is 8 solutions
#9 is %25
#10 is %37.5

hope this helps

for number 2: 4 times 4 equals 16 is that's why its the square root of 16.
for number 8: with red there are 3 options plus the red option so that's 4 plus the same thing with blue so that's 8.
for number 9: there is a 2/8 chance of getting that. 2/8= 25%
for number 10: there is a 3/8 chance of landing on it. 3/8= 37.5%

What is the name of the period that has the digits 486 in the number 751,486.

Answers

the period is the tenths, hundreds and thousands because the are behind the decimal or the comma

the areas of the two watch faces have a ratio of 16:25. what is the ratio of the radius of the smaller watch face to the radius of the larger watch face?

Answers

The ratio of the radius of the smaller watch face to the radius of the larger watch face is 4:5.

What is the area of the circle?

The area of the circle is given by the formula,

$\text{Area of the Circle} = \pi r^2$

As we know that the ratio of the area of the two watches is 16:25. And we also know that the area of a circle is given by the formula,

$\text{Area of the Circle} = \pi r^2$

Now, as we know that the ratio of the area of the watches can be written as,

$\frac{\text{Area of the small watch face}}{\text{Area of the Large watch face}} = (16)/(25)\n\n(\pi r^2)/(\pi R^2) =(16)/(25)\n\n(r^2)/(R^2) = (16)/(25)\n\n(r)/(R) = \sqrt{(16)/(25)}\n(r)/(R) = (4)/(5)$