describe the effect of change on the area of the rectangle if the base and height are both multiplied by 1/2

Answer:

Step-by-step explanation:

1 and 2/5 and 2 and 2/5

A fraction represented with its quotient and remainder is a mixed fraction. 1 2/5 and 2 2/5 are two mixed numbers that have a sum of 3 4/5.

What is Mixed Fraction?

A fraction represented with its quotient and remainder is a mixed fraction.

We need to find the two mixed numbers whose sum is 3 4/5.

The sum of two mixed numbers is 3 4/5 which is also equal to 19/5.

1 2/5+2 2/5

=7/5+12/5

=19/5

Now 3 4/5=19/5

Therefore 1 2/5 and 2 2/5 are two mixed numbers whose sum is 3 4/5

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Answer:

Chris sells 5 tickets and Mary sells 16 tickets

Step-by-step explanation:

System of Equations

To solve the problem we call:

x = number of tickets sold by Chris

y = number of tickets sold by Mary

They sold a total of 21 tickets, thus:

x + y = 21            [1]

Mary sold adult tickets for $6.50 each and Chris sold student tickets for $4.00 each. The total income was:

4x + 6.5y = 124       [2]

Multiplying [1] by -4:

-4x - 4y = -84            [3]

Adding [2] and [3]:

2.5y = 40

Dividing by 2.5:

y = 40/2.5

y = 16

From [1]

x = 21 - 16 = 5

x = 5

Chris sells 5 tickets and Mary sells 16 tickets

Answer:

88.51

0.085343

67.39

Step-by-step explanation:

Given a normal distribution :

Mean (m) = 73

Standard deviation (s) = 11

Percentage A's = 7.93% = 0.0793

Minimum score needed to receive A :

Using the Z formula

Zscore corresponding to 0.0793 = 1.41

P(x ≥ x) :

Z = (x - m) / s

1.41 = (x - 73) / 11

11* 1.41 = x - 73

15.51 = x - 73

x = 15. 51 + 73

x = 88.51

B. Students who made 57.93 or lower on the exam failedthe course. What percent of students failed the course?

P(x ≤ 57.93)

Z = (x - m) / s

Z = (57.93 - 73) / 11

Z = - 15.07 / 11

Z = - 1.37

P( Z ≤ - 1.37) = 0.085343 ( Z probability calculator)

C.) If 69.5% of the students received grades of C or better, what is the minimum score of those who received C's?

Minimum score of those who received C

Zscore corresponding to 0.695 = -0.51 (Z probability calculator)

Z = (x - m) / s

-0.51 = (x - 73) / 11

11* - 0.51= x - 73

-5.61 = x - 73

x = - 5.61 + 73

x = 67.39

Answer:

- 8 + (- 10)

Step-by-step explanation:

- 8 + (- 10) [.°. (-) × (+) = (-)]

- 8 - 10

Answer:

C

Step-by-step explanation:

The other graphs do not pass the vertical line test (if you draw a vertical line through the line graphed, it should pass through once), but graph c does pass the test.

Answer:

40 girls

Step-by-step explanation:

Set up a proportion where x is the number of girls in band class:

[tex]\frac{3}{5}[/tex] = [tex]\frac{24}{x}[/tex]

Cross multiply and solve for x:

3x = 120

x = 40

So, there were 40 girls in band class.

Answer: There are 40 girls in band class.

____________________________________________________________

The ratio for this problem is:

[tex]\frac{3}{5} = \frac{24}{x}[/tex]

To get from 3 to 24, you would multiply by 8. You need to do the same thing to 5 to get x.

5 times 8 equals 40.

There are 40 girls in band class.

Answer:

A = 121π

General Formulas and Concepts:

Pre-Algebra

Geometry

Step-by-step explanation:

Step 1: Define

C = 22π

Step 2: Find radius r

Step 3: Find Area

And we have our final answer!

Answer:

I believe the answer is C. 0.75

Step-by-step explanation:

The  probability that at least one of the next five birds he sees is a robin is 0.75.

Based on the stimulation result shown on the table we can seen that other birds appeared at least 15 times.

Hence:

P(A)=15/20

P(A)=0.75

Therefore the  probability that at least one of the next five birds he sees is a robin is 0.75.

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Answer:

18.6390625

Step-by-step explanation:

Answer: $18.64

bcuz yes

Answer:

t=-4

Step-by-step explanation:

t+6=7/3.5

t+6=70/35 (I expanded 7/3.5 by multiplying both numerator and the denominator by 10)

t+6=2 (I divided 70 by 35 to get 2)

t=2-6

t=-4

Answer:

t=-4

Step-by-step explanation:

i took the test on k12

Answer:

0.4246

Step-by-step explanation:

Given data:

mean ( u ) = 15 inches

std ( б )= 6 inches

sample size( n ) = 46

ux = mean sample length

Determine the probability that x within 0.5 inch of the claimed population mean

ux = u = 15

бx = б/ √ 46 =  6 /√ 46 = 6 / 6.78 = 0.88

Hence the   P( 14.5 < x < 15.5 )

= P ( [14.5 - 15 / 0.88 ] < z < (15.5 - 15) / 0.88) )

= P ( -0.5682 < z <  0.5682 )

= P ( z < 0.5682 ) - P ( z < -0.5682 )

= 0.7123 - 0.2877  ( from Z table )

= 0.4246

Answer:

I think it is 12 but still not sure

Answer:

<ECF = 45 degrees

Step-by-step explanation:

If ABCD is a square, then the diagonal AC divides angle <C and angle <A  in two equal parts. Angles A and C are also 90 degrees each due to the act that the figure is a square. Therefore their bisection would render 90/2 = 45 degrees.

Notice as well that angle <ECF is opposite by the vertex to one of these 45 degree angles, and then it must measure the same amount (45 degrees).

So, <ECF = 45 degrees

Question:

Where are the equations?

Answer:

2622 cubic answers

Step-by-step explanation:

Triangle volume=1026 in

9*12=108

108/2=54

54*19=1026

Volume of Rectangle part

7*12=84

84*19=1596

1026+1596=2622

We are given the equation:

25 - b² = 4b

it can be simplified into the following:

b² + 4b - 25 = 0

In this simplified equation, we can see that it is very similar to the general form of a quadratic equation [ax² + bx + c = 0]

Therefore, we can say that the given equation is Quadratic

Answer:

He rented the bike for 6 hours.

Step-by-step explanation:

To solve this you would first subtract the initial amount which is $18 to $48. You would then divide 5 by $30 Since you have to pay $5 per hour, and you would end up with 6 which is the number of hours that willie rented the bike for.

Answer:

ok

Step-by-step explanation:

Answer:

The answer is in this image! Pls mark brainliest :)

Step-by-step explanation:

Answer

9x/5 - 3y

I hope I helped sorry if I didnt

Answer:

b. -2,-4,-8,-16,-32 thats the answer i think

The arithmetic sequences are:

B) -2, -4, -8, -16, -32, ...

C) 0, 6, 12, 18, 24, ...

The correct options are B and C.

A series of integers called an arithmetic progression or arithmetic sequence (AP) has a constant difference between the terms.

An arithmetic sequence is a sequence of numbers where each term is obtained by adding a fixed number, called the common difference, to the previous term. We can check which of the given sequences satisfy this definition:

A) 0, 5, 11, 18, 24, ...

The common difference between consecutive terms is not the same: the difference between the first two terms is 5, the difference between the second and third terms is 6, the difference between the third and fourth terms is 7, and so on. Therefore, this sequence is not an arithmetic sequence.

B) -2, -4, -8, -16, -32, ...

The common difference between consecutive terms is multiplied by -2: the difference between the first two terms is -2(-2) = 4, the difference between the second and third terms is -4(-2) = 8, the difference between the third and fourth terms is -8(-2) = 16, and so on. Therefore, this sequence is an arithmetic sequence with a common difference of -2.

C) 0, 6, 12, 18, 24, ...

The common difference between consecutive terms is 6. Therefore, this sequence is an arithmetic sequence with a common difference of 6.

D) 1, -3, 9, -27, 81,...

The common difference between consecutive terms is multiplied by -3: the difference between the first two terms is -3, the difference between the second and third terms is -3(-3) = 9, the difference between the third and fourth terms is -9(-3) = 27, and so on. Therefore, this sequence is not an arithmetic sequence.

Therefore, the arithmetic sequences are options B and C.

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Answer:-10

Step-by-step explanation:

F(-2) means substitute -2 in x

=3(-2)-4= -6-4

=-10

Answer:

x is 9

Step-by-step explanation:

6x+10=2x+26

-2x          -2x

4x+10=26

   +10  +10

4x=36

---   ---

4    4

x=9

Answer:

B. 3.710

Step-by-step explanation:

This number makes 7.706 smaller

Answer:

D) Triangle AEB and triangle DEC

Step-by-step explanation:

This was the correct answer shown one the test took and i can say i know for sure it wasnt A, B, or C.

Answer:

D) Triangle AEB and triangle DEC

Step-by-step explanation:

Answer:

25%

Step-by-step explanation:

Each quartile is 25% of a the whole box plot so it would have to be 25%

Answer:

x = 6

Step-by-step explanation:

Since the triangles are isosceles the two bottom angles are equal. So, 71 + 71 + 2 + 6x would help us find x. Now to solve it.

71 + 71 + 2 + 6x = 180

142 + 2 + 6x = 180

144 + 6x = 180

6x = 180 -144

6x/6 = 36/6

x = 6

Answer:

whats the question

Step-by-step explanation:

Answer:

she drops at 20 ft per second

Step-by-step explanation:

if she drops 200 ft per 10 seconds, then you would divide 200 by 10 to get 20 ft per second

Answer:

tijjiiowoowowowooq2o222222