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stellarik [79]
3 years ago
11

Please help thank you.

Mathematics
1 answer:
tia_tia [17]3 years ago
5 0
Question 1:

The answer is the second choice.

Parallelograms that are not rectangles do not have congruent diagonals; however, all rectangles do have congruent diagonals.

A rhombus has perpendicular diagonals but is not a rectangle, so the first choice is wrong

A rhombus has all congruent sides but is not a rectangle, so the third choice is wrong.

The last choice only applies to certain quadrilaterals, none of which are rectangles.

Question 2:

The first choice is the answer.

A rectangle has congruent diagonals, but is not a square. We can eliminate the second choice.

A rhombus has all congruent sides, but it is not a square.

The last choice only applies to certain quadrilaterals, none of which are squares.

Have an awesome day! :)
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F(x)=3x+5 and g(x)=2x+1<br><br>value of x​
AlekseyPX

You can treat x and 2x+1 just as though they are real numbers.

So f(2x+1) = 3(2x+1) - 5 = 6x + 3 - 5 = 6x - 2

In the above, I made use of something called the distributive law which says that if a,b and c are real numbers, then a(b+c) = ab + ac.

7 0
3 years ago
lucia works at her family's italian restaurant . A 20% tip is included with each other. one customer wants to know the price bef
alina1380 [7]

Answer:

$26.88

Step-by-step explanation:

33.60x.20=6.72

33.60-6.72= 26.88

8 0
3 years ago
John runs a computer software store. Yesterday he counted 123 people who walked by the store, 56 of whom came into the store. Of
vaieri [72.5K]

Answer:

a) There is a 45.53% probability that a person who walks by the store will enter the store.

b) There is a 41.07% probability that a person who walks into the store will buy something.

c) There is a 18.70% probability that a person who walks by the store will come in and buy something.

d) There is a 58.93% probability that a person who comes into the store will buy nothing.

Step-by-step explanation:

This a probability problem.

The probability formula is given by:

P = \frac{D}{T}

In which P is the probability, D is the number of desired outcomes and T is the number of total outcomes.

The problem states that:

123 people walked by the store.

56 people came into the store.

23 bought something in the store.

(a) Estimate the probability that a person who walks by the store will enter the store.

123 people walked by the store and 56 entered the store, so T = 123, D = 56.

So

P = \frac{D}{T} = \frac{56}{123} = 0.4553

There is a 45.53% probability that a person who walks by the store will enter the store.

(b) Estimate the probability that a person who walks into the store will buy something.

56 people came into the store and 23 bought something, so T = 56, D = 23.

So

P = \frac{D}{T} = \frac{23}{56} = 0.4107

There is a 41.07% probability that a person who walks into the store will buy something.

(c) Estimate the probability that a person who walks by the store will come in and buy something.

123 people walked by the store and 23 came in and bought something, so T = 123, D = 23.

So

P = \frac{D}{T} = \frac{23}{123} = 0.1870

There is a 18.70% probability that a person who walks by the store will come in and buy something.

(d) Estimate the probability that a person who comes into the store will buy nothing.

Of the 56 people whom came into the store, 23 bought something. This means that 56-23 = 33 of them did not buy anything. So:

D = 33, T = 56

P = \frac{D}{T} = \frac{33}{56} = 0.5893

There is a 58.93% probability that a person who comes into the store will buy nothing.

8 0
3 years ago
What is 27 Divided by 15
lozanna [386]
27 divided by 15 is 1.8, so that should be the correct answer.
6 0
3 years ago
What is the Unit price of 20 tickets for $14.00 ?
chubhunter [2.5K]

Answer: 1 ticket = 70 cents.

Step-by-step explanation:

If you get 20 tickets for 14.00, then we have to divide 14 by 20.

14 ÷ 20 = 0.7, or 70 cents. Because of this, each ticket will cost 70 cents.

6 0
3 years ago
Read 2 more answers
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