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3 years ago

Please answer I will make brainliest and it's worth lots of points

Mathematics

2 answers:

Molodets [167]3 years ago

4 0

Answer:

I hope this helps and please give me the brainliest because I gave you an explanation. Please!

a) $0.20

b) $0.80

c) $1.00

d) $0.40

e) $0.60

f) $0.40

g) $1.60

Step-by-step explanation:

a) It's 1/4 of $0.80.

b) It's the same as $0.80. but in a different shape.

c) It's a little bit bigger than the shape of $0.80.

d) It is half the size of $0.80.

e) It is not the same size as $0.80, but it is 3/4 of it.

f) It is half of $0.80.

g) It is twice the amount of $0.80.

I hope this helps and please give me the brainliest because I gave you an explanation. Please!

Stella [2.4K]3 years ago

3 0

Answer:

a) $0.20

b) $0.80

c) $1.00

d) $0.40

e) $0.60

f) $0.40

g) $1.60

Step-by-step explanation:

a) 1/4 out of the $0.80.

b) 4 of a's equal up to 1 b

c) its the same thing as the d and e together under it.

d) its is 2 a's

e) its a letter a and f together

f) It is half of $0.80.

g) It is double the amount of $0.80.

Someone deleted my first answer for no reason. So im redoing it a little differently.

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Find the median of the data in the dot plot below.

Scrat [10]

Answer:

The median is 6.

Step-by-step explanation:

To find the median, put the numbers in order then find the middle number. In this data set, there are 2 numbers, so you add those 2 and divide by 2.

5+7 equals 12. 12 divided by 2 is 6.

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3 years ago

An important problem encountered by personnel directors and others faced with the selection of the best in a finite set of eleme

SVETLANKA909090 [29]

Answer:

1.63% probability that the 10 selected include include all the best 5 engineers in the group of 20

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

The order in which the engineers are selected is not important, so the combinations formula is used to solve this question.

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

Desired outcomes:

10 engineers selected from a set of 20.

5 best, from a set of 5.

Other 5, from a set of 20-5 = 15.

$D = C_{5,5}*C_{15,5} = \frac{5!}{5!(5-5)!}*\frac{15!}{5!(15-5)!} = 3003$

Totao outcomes:

10 engineers selected from a set of 20.

$T = C_{20,10} = \frac{20!}{10!(20-10)!} = 184756$

Probability:

$p = \frac{D}{T} = \frac{3003}{184756} = 0.0163$

1.63% probability that the 10 selected include include all the best 5 engineers in the group of 20

5 0

3 years ago

Find the value of the term in the arithmetic sequence using an = a^1+ (n-1)d. 3,5,7,9,11, (8th term)

saveliy_v [14]

<h3>Answer: 17</h3>

=========================================================

Work Shown:

a1 = 3 = first term

d = 2 = common difference (since we add 2 to each term to get the next one)

Let's compute the nth term.

an = a1 + (n-1)*d

an = 3 + (n-1)*2

an = 3 + 2n-2

an = 2n+1

-----------------------

To check things so far, we can plug in something like n = 2

an = 2n+1

a2 = 2*2+1

a2 = 5

Showing that the 2nd term is 5, which matches with the sequence given to us

Let's check n = 3

an = 2n+1

a3 = 2*3+1

a3 = 7

That matches as well. I'll let you check the others.

-----------------------

Plug in n = 8 to find the 8th term

an = 2n+1

a8 = 2*8+1

a8 = 17

The eighth term is 17, which is the final answer.

-----------------------

You could extend out the given sequence by adding 2 each time until you reach the 8th term

3,5,7,9,11,13,15,17

Though this method is slow if you need to find say the 38th term

8 0

3 years ago

Read 2 more answers

Please help me really quick pleasee<br> answer choices:<br> a)2<br> b)11<br> c)20<br> d)29

mihalych1998 [28]

Answer:

C. $x=20^{\circ}$

Step-by-step explanation:

Angle 6 and angle with measure 45° are vertical angles (opposite angles whan two lines intersect). By Vertical Angles Theorem, vertical angles are congruent, so

$m\angle 6=45^{\circ}$

Angle 6 and angle with measure $5x+35^{\circ}$ are the same side interior angles when two parallel lines are cut by transversal. The same side interior angles add up to 180°, then

$m\angle 6+5x+35^{\circ}=180^{\circ}\\ \\45^{\circ}+5x+35^{\circ}=180^{\circ}\\ \\5x=180^{\circ}-45^{\circ}-35^{\circ}\\ \\5x=100^{\circ}\\ \\x=20^{\circ}$

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3 years ago

Find the difference in simplest form. <br> 2b/b^2-2b+1 - 2/b^2-2b+1

kolezko [41]

1) factor the denominators: 2b/(b-1)2 - 2/ (b-1)2
2) MAKE SURE YOU HAVE A COMMON DENOMINATOR
3) combine the numerators: 2b-2/(b-1)2
4) distribute 2 from numerator: 2(b-1)/(b-1)2
5) simplify; answer is 2/(b-1)

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3 years ago

Please answer I will make brainliest and it's worth lots of points​

Please answer I will make brainliest and it's worth lots of points