Mathematics High School

8. Jackson bought three CDs. A week later half of all his CDs were
destroyed in a fire. There are now only 24 CDs left. How many did
he start?

Answers

Answer 1
24+24 is 48
If he started with 48 then half of 48 is 24
Answer 2
48? It says 3 cds in the beginning but is asking how many there were in the beginning but if I ignore that then I get 48

Related Questions

Simplify the following:
A) 4^9 x 4^3

B) 6^5x 6^2

C) 8^6 divide by 8

d) 7^8 divide by 7^6

Answers

Answer:

A. 4^12

B.6^7

C.8^7

D.7^2

A) 4^12 (because when u multiply two same numbers with different power, powers are added to each other and number is staying the same— a^b•a^c=a^b+c)

B) 6^7

C) 8^5 (because a^b:a^c=a^b-c, and since 8 is the same as 8^1, 8^6:8=8^5)

D) 7^2

How would you solve x^2 -4x +2=0?!

Answers

Answer:

non liner

Step-by-step explanation:

Answer:

i completed the square and found x

Step-by-step explanation:

x = ±√2+2

x= 2 + √2, 2 - √2

Find the angle represented by x. (rounded to the nearest tenth of a degree)

Answers

X=.5 digressed bsquare +.2= 11.23987

5x 2 - 8+ 4SOMEONE HELP PLS AND THANK U:)!!

Answers

5x2-8+4

10-8+4
10-12
-2

If x and y vary directly, and x 60 when
y= 5, what is the value of y when x =36?

Answers

Answer:

-19

Step-by-step explanation:

36 is 24 less than 60 so that means they subtracted to get 36 so subtract 24 from five and boom -19

prove the two triangles congruent.

sas
sss
asa
aas
hl
not congruent

Answers

Answer:

SAS because there congruent and each side has the same degree

Step-by-step explanation:

The numbers 20 through 30 are written on cards and placed in a box. Explain whether the events of choosing a number that is a multiple of 3 or choosing a number that is a multiple of 4 are mutually exclusive.

A. Mutually Exclusive
B. Not Mutually Exclusive

Answers

Answer:

A. Mutually Exclusive is the correct answer

The events of choosing a number that is a multiple of [tex]3[/tex] or choosing a number that is a multiple of [tex]4[/tex] are not mutually exclusive.

What is Mutually Exclusive ?

Mutually Exclusive means when two sets have no common elements.

What is Not Mutually Exclusive ?

Not Mutually Exclusive means when two sets share common elements.

We have,

Cards numbered [tex]20[/tex] to [tex]30[/tex].

Let's

Set [tex]A =[/tex] Multiple of [tex]3[/tex]

i.e. Set [tex]A = \ \{ 21, 24,27,30\}[/tex]  

Set [tex]B =[/tex] Multiple of [tex]4[/tex]

i.e. Set [tex]B = \{20,24,28\}[/tex]

So, Set [tex]A[/tex] and Set [tex]B[/tex] have common element [tex]24[/tex], so we call them Not Mutually Exclusive, from the mentioned definition we find out this.

Hence, we can say that the events of choosing a number that is a multiple of [tex]3[/tex] or choosing a number that is a multiple of [tex]4[/tex] are not mutually exclusive.

To know more about Not Mutually Exclusive click here

https://brainly.com/question/12947901

#SPJ2

Use the figure and find LN, if LM=6x and MN=2x+12

Answers

Answer:

LN

= LM + MN

= 6x + 2x + 12

= 8x + 12

is this a function? pls help

Answers

Answer:

It would be no

Find the area of these shapes AND explain your method
Can some one help me :((

Answers

Answer:

Triangle - 21 units

Trapezoid - 65 units

Step-by-step explanation:

Because this triangle and trapezoid are reflections of each other when split in half, remove the highlighted parts to make them a rectangle. When made into a rectangle, you can use the formula length * width to find the area of either shape (trapezoid or triangle).Note you won't be able to do this when solving for the area of ALL trapezoids and triangles.

6x7=42cm squared
Base x height = triangle area
10+18=28/2=14
14x5=70cm squared
Add the parallel line together and divide that number by 2 then times that number by the height.

What is the distance between points P (-3, 5) and S (6, 9) ?

Answers

The distance would be (9,4) ur welcome
Im pretty sure it would be (9,4)


4 in.
5 in.
6 in.
I

Answers

What is the exact question? It seems like you are asking for the Pythagorean theorem. Ok, I’ll try to help if that’s the case.

a^2 + b^2 = c^2
4^2 + 5^2 = c^2
16 + 25 = c^2
41 =c^2
6.403124237432849 = c

So now since we have the answer, we need to figure out if this result and 6 are equal.

6^2 = 36

25 + 16 = 41

41 and 36 are not equivalent so if the case is that u want me to find the Pythagorean theorem, then the answer is that they aren’t equal. And the real answer is that c equals 6.403124237432849. Which means that 4in, 5in, 6in is not the correct order. And that 16in, 25, 41 is the correct order.

I hope this helped!

Determine the circumference of a circle with a radius of 4 in. Use 3 as a estimate for \PiΠ

Answers

Answer:

24

Step-by-step explanation:

im not sure why 3 is estimat efor pi, usually 3.14

2pi*r

2*4*3 = 24

Write an equation to find x by substituting.
3. What does it mean to substitute here?
5x - 2 = 3x +4

Answers

Answer:

3

Step-by-step explanation:

5x-2=3x+4

5x-3x=4+2

2x=6

x=3

An object has a mass of 235 g and a volume of 655 cm? What is its density?

Answers

Answer:

the answer is 235/655= 0.358778

In AGHI, h = 300 inches, ZG=30° and ZH=29º. Find the length of i, to
the nearest inch.

Answers

The answer is Stan twice ZG=30

Evaluate 3/8 with an exponent of 2

Answers

Answer:

9/64

Step-by-step explanation:

i need help someone help pls and thx

Answers

Answer: there are no x intercepts

Step-by-step explanation: this graph will continue on both ends away from the x axis, and it never crosses it

Answer: b think

Step-by-step explanation: b

Use the diagram below to solve for x and y. Please help! Fast if possible.

Answers

Answer:

x = 27

y = 29

Step-by-step explanation:

n is an integer.
Write the values of n such that -15 < 3n < 6

Answers

Answer:

-5<n<2Thus ans(-4,-3,-2,-1,0,1)

Step-by-step explanation:

Divide all by 3 so that we can make n and find the value using sign

Does this problem have a solution yes or no?

Answers

No that is the answer

Answer:

Yes.

Step-by-step explanation:

what is what what is the unit rate of what is the unit rate if armon by 6 shirts for $74.70

​

Answers

Answer:

7.8

Step-by-step explanation:

(HELP) What is the domain and range of this parabola?

Answers

Answer:

D: [0,8]

R: [0,3]

Step-by-step explanation:

The domain is the x-values covered by the graph, while the range is the y-values. So to find each, find the lowest and highest x and y value; since this graph is continuous the domain and range will include all values between these points. In this case, the lowest x is 0 and the highest is 8; the lowest y is 0 and the highest is 3. Then to write the answer write is from least to greatest, finally, surround the point by a parenthesis or bracket. The difference is that parenthesis means the value is not included while a bracket means it is. On this graph all points are included, therefore brackets should be used.

What expression below is equivalent to 3a + 12?
3(a + 12)
В.
3(a + 4)
C.
15 + a
D.
15a

Answers

Answer:

B. 3(a + 4)

Step-by-step explanation:

Divide by a factor of 3:

3a/3 = a

12/3 = 4

Therefore, 3(a + 4) is equivalent to 3a + 12.

You can paint 75 square feet of a surface every 45 minutes. Determine how long it takes you to paint a wall with the given dimensions. 8 ft $\times$ 5 ft

Answers

Answer:

24 minutes

Step-by-step explanation:

The Dimensions of the wall are given as:

8ft × 5ft = 40ft² or 40 square feet

We are told that: You can paint 75 square feet of a surface every 45 minutes.

Hence:

75 ft² = 45 minutes

40 ft² = x minutes

Cross Multiply

75 ft² × x = 40 ft² × 45 minutes

x = 40 ft² × 45 minutes/75 ft²

x = 24 minutes

Therefore, It will takes you 24 minutes to paint a wall with dimensions 8ft × 5 ft

A function rule takes an input(x) and coverts into an output(y), by increasing 4 times the inpuy by 36. Write an equation for the rule and determine the output for this rule when the input is 3

Answers

Answer:

[tex]y = 4x + 36[/tex]

[tex]y = 48[/tex] when [tex]x = 3[/tex]

Step-by-step explanation:

Given

x = input

y = output

Required

Determine the equation of y

The process to get y is as follows:

Multiply x by 4: x * 4

Increase the result by 36: x * 4 + 36

Hence:

[tex]y = x * 4 + 36[/tex]

[tex]y = 4x + 36[/tex]

Solving y when x = 3

Substitute 3 for x in [tex]y = 4x + 36[/tex]

[tex]y = 4 * 3 + 36[/tex]

[tex]y = 12 + 36[/tex]

[tex]y = 48[/tex]

The Mallards pay their two quarterbacks $7.2 million and $1.4 million. If the team salary is $33 million a year and their budget for quarterbacks is 25% of total salaries. Are they over budget? a) Yes b) No

Answers

Answer:

a) Yes

Step-by-step explanation:

The computation is shown below:

Given that

Their two quarterbacks is $7.2 million and $1.4 million

Its total is

= $7.2 million + $1.4 million

= $8.6 million

Now if the team salary is $33 million

And their budget is 25% of total salaries

i.e.

= $33 million × 25%

= $8.25 million

So as we can see that it it overbudget as the target is $8.25 million but it is $8.6 million

SO, the correct option is a.

Answer:

Yes

Step-by-step explanation:

Emelina loaded 96 trucks in 8 hours. At that rate, how many trucks
would she load in 15 minutes?

Answers

Answer:

3

Step-by-step explanation:

60 × 8 = 480 (mins)

96 (trucks) = 480 (mins)

÷32 (I got this number by dividing 480 by the desired amount of mins which was 15)

3 = 15

So 3 trucks would have been loaded in 15 mins

Work out the value of (6.8 x 10^2) x (1.3 x 10^-3)

Answers

Answer:

worked it out.

Step-by-step explanation:

0.884

8×84×10-1

Use the figure at the right to answer questions 9-12.

Answers

Answer:

9.) 5x - 18 = 4x + 7 10.) x = 25 11.) m∠MNQ = 107° 12.) m∠MNR = 73°

Step-by-step explanation:

9. & 10.)

∠MNQ and ∠RNP are vertical angles meaning they are equivalent to each other. Knowing that, we can set their values equal to each other and solve for x.

5x - 18 = 4x + 7 (Given)

x - 18 = 7 (Subtract 4x on both sides)

x = 25 (Add 18 on both sides)

Therefore, we know the equation is 5x - 18 = 4x + 7 and we know that x = 25.

Now we can solve for the angles.

11.)

5(25) - 18

125 - 18 = 107

Therefore, m∠MNQ = 107°.

12.)

∠MNR and ∠MNQ are supplementary angles meaning their angles will add up to 180°

∠MNR + 107 = 180

∠MNR = 73

Therefore, m∠MNR = 73°.

Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.
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