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3 years ago

If 40% of the 25 students in mr.greggs class are boys how amny boys are in class

Mathematics

1 answer:

LiRa [457]3 years ago

4 0

Answer:

10 boys

Step-by-step explanation:

0.4x25= 10

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For ten school days the numbers of bikes parked at a school bike rack are 10,12,8,11,13,9,2,1,9, and 12

kumpel [21]

Step-by-step explanation:

for this question is not even possible

6 0

3 years ago

Let f(x)=cos(arctanx). What is the range of f?

Alenkasestr [34]

-π/2 < arctan(x) < π/2

So cos(π/2) < cos(arctan(x)) < cos(0)

0 < cos(arctan(x)) < 1

4 0

3 years ago

Numbered disks are placed in a box and one disk is selected at random. If there are 6 red disks numbered 1 through 6, and 2 yell

Tatiana [17]

Answer:

$\frac{3}{4}$

Step-by-step explanation:

Total number of red disk=6

Total number of yellow disk=2

Total disk=6+2=8

Odd number=1,3,5,7=4

Odd number on red disk=1,3,5=3

Probability, $P(E)=\frac{favorable\;cases}{total\;number\;of\;cases}$

Using the formula

The probability of getting odd number disk= $\frac{4}{8}=\frac{1}{2}$

The probability of getting odd numbered red disk= $\frac{3}{8}$

The probability of selecting a red disk,given that an odd numbered disk is selected= $\frac{\frac{3}{8}}{\frac{1}{2}}=\frac{3}{8}\times 2=\frac{3}{4}$

Using conditional probability

$P(A/B)=\frac{P(A\cap B)}{P(B)}$

6 0

3 years ago

Find the domain and the range of the relation shown in the given graph. Also, determine whether the relation is a function.

Ivahew [28]

Answer:

yes, it is a function

D: {-4, -3, 0, 4}

R: {2, 4}

Step-by-step explanation:

7 0

3 years ago

FREE POINTS!!!!!!!!!! 10 POINTS Len's recipe for blueberry muffins calls for 110.25 grams of brown sugar for the muffin batter a

RSB [31]

Wow.... My brother Said that it took him a while to figure it out... but

add 110.25 and 55.45

you would get 165.70

multiply 165.70 by 4.5

then you would get 745.65

745.65 is your answer

7 0

4 years ago

Read 2 more answers