Mathematics College

can you help me pls it's only 3 question's

Can You Help Me Pls It's Only 3 Question's

Answers

Answer 1

Answer:

1. 0.8 2. 1.25 3. 27.5

Step-by-step explanation:

Number 1 is 4/5

Number 2 is just 5/4

And I think number 3 is 22/4 which is 5.5 then times 5 which is 27.5.

Related Questions

x/4−1=3

What is the value of x?

Answers

Answer:

x = 16

Step-by-step explanation:

x/4 - 1 = 3

x/4 = 3+1

x/4 = 4

x = 4*4

x = 16

Answer:

x=16

Step-by-step explanation:

always multiply denominator by whatever it is to the number behind the equl sign after subtracting that one it would be whatever that number is *4

What is the length of side BC of the triangle?

Answers

Answer: -9

Step-by-step explanation: it is -9 because 3x-3 equals -9. I hope this will help!

How much interest is earned in 5 years on $8400 deposited in an account paying 6% interest, compounded semiannually? (Round your answer to two decimal places.)

Answers

Answer:

£11241.09

Step-by-step explanation:

100+6 = 106%

106% = 1.06

8400 x 1.06^5= £11241.09485

Round to 2 d.p = £11241.09

Hope this helps

3x = -12 what is the answer to that?

SHOW UR WORK

Answers

You would divide -12 by 3 and get -4

Answer:

-4

Step-by-step explanation:

x=−  3 /12

x=-4

​  

 

Clare has 5 fewer books than Mai. If Mai has 17 books, how many books does Clare have? Find the solution.

Answers

Answer:

12 books

Step-by-step explanation:

17 books - 5 books = 12

Answer:

c-12

Step-by-step explanation:

17-5=12

simplify 3 - 5 (-3n + 5)​

Answers

Answer:

I think it's 15n-22

Step-by-step explanation:

I hope this is correct!

-3(4x - 2) = 42

A x=3
B x=-3
C x=3.67
D x=7

Answers

Answer:

B) x=-3

Step-by-step explanation:

-3(4x-2)=42

4x-2=42/-3

4x-2=-14

4x=-14+2

4x=-12

x=-12/4

x=-3

what is the scale factor of the small triangle to the large triangle?

Answers

Answer:

I'm pretty sure it's 4.3?

Step-by-step explanation:

Because you divide the larger triangles side first because you are figuring out the scale factor of the small triangle to the larger triangle, not the other way around.

Sorry if i'm wrong

Answer:

first, find the area of the small triangle: 3 times 3 equals 9 divided by 2 equals 4.5.

second, find the area of the big triangle: 13 times 13 equals 169 divided by 2 equals 84.5.

Find difference: 84.5 minus 4.5 equals 80

Find the following
(u•w)(2)=
(w•u)(2)=

Answers

Answer:

[tex](u \circ w)(2) = -34[/tex]

[tex](w \circ u) = -49[/tex]

Step-by-step explanation:

We are given these following functions:

[tex]u(x) = 4x + 2[/tex]

[tex]w(x) = -5x + 1[/tex]

The first step to solve this question is finding the composite functions. So

[tex](u \circ w)(x) = u(w(x)) = u(-5x+1) = 4(-5x + 1) + 2 = -20x + 6[/tex]

[tex](w \circ u)(x) = w(u(x)) = w(4x + 2) = -5(4x+2) + 1 = -20x - 9[/tex]

At x = 2

Now we replace x by 2 in each of the functions. So

[tex](u \circ w)(2) = -20(2) + 6 = -40 + 6 = -34[/tex]

[tex](w \circ u)(2) = -20(2) - 9 = -40 - 9 = -49[/tex]

The graph shows two lines, A and B. How many solutions are there for a pair of equations for lines A and B? Explain your answer. If I get it right I’ll give brainliest!!!

Answers

Answer:

There is only 1 solution

[tex](x,y) = (1,4)[/tex]

Step-by-step explanation:

Given

Lines A and B

Required

The number of solution for a pair of A and B

From the graph, lines A and B have only one point of intersection.

This point of intersection represents the solution

Since, there is only 1 point, there is only one solution.

And the solution is:

[tex](x,y) = (1,4)[/tex]

PLEASE PLEASE HELP


Wyatt built a new dog house and needs to paint it.

44"

42

22.5

44.5"

28"

28

42

38.6"

In order to paint the house, Wyatt multiplies the area of the base times the height then adds half the area of the base times the height.

Explain whether or not Wyatt correctly calculated the surface area of the house.

Answers

9514 1404 393

Answer:

  Wyatt is incorrect in his calculations

Step-by-step explanation:

The units of base area are square inches. When Wyatt multiplies that by height, he gets a number with units of cubic inches. This is a volume, not an area. If Wyatt is trying to compute an area, he is doing it incorrectly.

_____

Additional comment

I find units analysis to be very helpful in keeping calculations of speed, distance, area, volume, acceleration, velocity, and other physical phenomena straight. If the units come out right, chances are much better that the numbers are being combined appropriately.

Wyatt may need to be using the perimeter of the base, rather than the area of the base. Without the diagram it is tough to tell what the calculation should be.

What is the perimeter and area of the composite figure?

Answers

Answer:

P = 33

A = 3900

Step-by-step explanation:

PLEASE ANSWER!!!!!!!!!!!!!!!!!!!!!!!!

Answers

I am pretty sure the answer is letter C

I can say it’s C
Explanation: just try it

An object with a mass of 66.5 kg accelerates 22.3 m/s when
an unknown force is applied to it. What is the amount of the
force?

Answers

Answer:

Step-by-step explanation:

F=ma

F=66.5kg(22.3m/s)

F=1482.95N

B
280
D
C
What is the measure of angle ADB?
A. 17°

Answers

Answer:

C. 62

Step-by-step explanation:

ADC is 90 degrees. 90 - 28 = 62

50% of 90 change to decimal

Answers

Answer:

0.5 or 0.45

Step-by-step explanation:

this needs to be 20 characters long

Can anyone help me with this answer please

Answers

Answer:

Step-by-step explanation:

What is the slope of the line m?

Answers

Answer:

I think the answer us-1/2

A grab-bag contains 30 packages worth $.65 each, 10 packages $.60 cents each, and 15 packages worth $.30 each. How much should the game owner charge to make it a fair game?

Answers

Answer:

$0.40

I had the same question and it was $0.40

Answer:

$0.55

Got it on the test, hope this helps :)

Amy is 4 years older than April. Together, their age is 24. How old is April and how old is Amy?

Answers

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-12 is less than or equal to 44 + x

Answers

Less then



Step by step:
Dude where is the whole question? 44+x, x can be anything...

giving brainliest !!!

Answers

Answer:

156.6 meters squared

Step-by-step explanation:

There are 3 triangles for the sides. The area for a triangle is one half base times height. So we are doing one half of 9 times 9. This is 40.5. Since there are 3 of them we can just multiply 40.5 times 3 to get 121.5. And now to solve for the base triangle, it is one half of 9 times 7.8. We get 35.1. Now add together 121.5 and 35.1. We get 156.6. Now since this is surface area it is meters squared.

What is the area of this face? 12ft 6ft 6ft 6ft
​

Answers

Answer:

I don't know. I think I need the picture that is associated with it.

Step-by-step explanation:

If you are looking for an i-Ready answer, It is 180 ft squared

simplify the following expression 3 x 6 + 5 x 2 diveded by 7
I needed the answer in one second please

Answers

Answer:

4

Step-by-step explanation:

3x6+5x2
-------------
7
18+10
--------
7

28
----
7

4

The graph of a function is shown below. Which value is not a domain of the function ?
A.)-8
B.)-7
C.)3
D.) 8

Answers

C to get a new phone and then I’m going to

7 (4 1/3) using distributive property

Answers

Answer:

so 7*4 is 28 and 7*1/3 is 2 an 1/3 so it would be 30 and 1/3

Step-by-step explanation:

What is the solution to the expression

Answers

19 because 5x5 =25 and 3x2=6 and the subtract

Evaluate the expression when x = 4
8x + 6

Answers

Answer:

38

Step-by-step explanation:

could be wrong

The price of an item has been reduced by
45%
. The original price was
$15​

Answers

Answer:

8.25

Step-by-step explanation:

15*.45=6.75

15-6.75=8.25

Answer:

Step-by-step explanation:

15x45%= $6.75

Let F be the set of fractions in simplest form between 0 and 1 that can be written with a single-digit denominator. Find F and |F|​

Answers

Answer:

|F| is 27, the whole F is "listed" below.

Step-by-step explanation:

The set of possible denominators is the numbers from 2 to 9. Each of them produces a single fraction for each numerator that's coprime to it.

Let's list those for each:

2: 1

3: 1 2

4: 1 3 (2 is not coprime)

5: 1 2 3 4

6: 1 5 (2 3 and 4 are not coprime)

7: 1 2 3 4 5 6

8: 1 3 5 7

9: 1 2 4 5 7 8 (3 and 6 are not coprime)

To make any number from F, just take the denominator from the rows and the numerator from the list. The size of F is 1 + 2 + 2 + 4 + 2 + 6 + 4 + 6 = 27

The set/number of fractions F for each denominator are ; ( 1, 2, 2, 4, 2, 6, 4, 6 ) .while the value | F | = 27

Given that the set of fractions are between 0 and 10. the possible single digit denominators will be ( 2 through 9 ). also the single digit denominators will have to produce a single fraction where its numerator is coprime to the denominator.

note : coprime numbers are a set of numbers whose HCF (highest common factor ) equals 1

denominators                co-prime numerators

    2                                             1

     3                                           1,  2

     4                                           1,  3  

     5                                           1, 2, 3, 4

     6                                           1, 5  

     7                                           1, 2, 3, 4, 5, 6

     8                                           1, 3, 5, 7

     9                                           1, 2, 4, 5, 7, 8

next : Determine the size of F i.e. | F |

The size of F = ∑ number of coprime numerators for each denominator

                     =  1 + 2 + 2 + 4 + 2 + 6 + 4 + 6 = 27

set of fractions F for each single digit denominator  = ( 1, 2, 2, 4, 2, 6, 4, 6 )

Learn more : https://brainly.com/question/4656499

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