Mathematics High School

Helpppp.....................................................

Answers

Answer 1

Answer:

6 and 8 are yes

Step-by-step explanation:

-4 and -6 are no

Answer 2

Answer:

sorry for this answer

Step-by-step explanation:

Do you have PC ?

Related Questions

The value of a car decreases by 5% each year. Sophie bought a car two years ago for £10000. Work out the value now.

Answers

Given:

The value of car before two years = £10000

The value of the car decreases by 5% each year.

To find:

The present value of the car.

Solution:

The exponential decay model for present value is

[tex]y=a\left(1-\dfrac{r}{100}\right)^t[/tex]

Where, a is the initial value, r is the rate of decay and t is time in years.

Putting P=10000, r=5 and t 2, we get

[tex]y=10000\left(1-\dfrac{5}{100}\right)^2[/tex]

[tex]y=10000\left(1-0.05\right)^2[/tex]

[tex]y=10000\left(0.95\right)^2[/tex]

On further simplification, we get

[tex]y=10000(0.95)(0.95)[/tex]

[tex]y=9025[/tex]

Therefore, the present value of the car is £9025.

If something travels 4 meters in one second, what is its speed?

Answers

Answer:

1.8 speed

Step-by-step explanation:

Answer:

4 m/s

Step-by-step explanation:

speed = distance/ time

speed = 4/1

speed = 4m/s

Cristal had $157 in her checking account. She then made a deposit of $160. Find her new account balance.

Answers

Answer:

$317

deposit: add

157+160= 317

Adjust the number into correct standard form.
60 x 103

Answers

60x+103 if that’s right let me know

Jonathan drives 845 miles in 5 hours. What is his average rate of speed in miles per hour?

Answers

845 / 5 = 169
his average rate of speed is 169 mph.

Answer:

ok so it is 169

Step-by-step explanation:

ok i hope this is correct i used a calculator so sorry if its wrong all i did was divide some stuff

if its correct can u give me the crown

if u dont want to thats alright

i divided 845 and 5 and got 169

what is 2x + 7x + 8a + 9a

Answers

Answer: 9x + 17a

Step-by-step explanation:

2x + 7x + 8a + 9a

2x+7x= 9x

8a+9a= 17a

= 9x +17a

Answer:

9x + 17a

Step-by-step explanation:

9x + 17a. (A side note is that you can't add x and a together because they are different variables.)

I need help with this

Answers

A and C is the correct answers

A tree measured 12 1/2
feet tall. Over the next 5 1/2
years it grew to be 51 feet tall.

During the 5 1/2
years, what was the average yearly growth rate of the tree?

Answers

Answer:4.08 ft a year or 1 and 5/8 feet a year (approx)

Step-by-step explanation:

It's 12.5 feet the first year

51 feet 5 years later

If you do the math and divide 51 by 12.5, you get 4.08 which is around 1 and 5/8 ft

12.5x4.08 is 51 feet.

So the tree grows approximately 1 and 5/8 feet a year

x+3>70
Please helpp plzzzzzz

Answers

Answer:

x>67

So basically what you do is subtract 3 from each side :)

what is 8333333333/100000000000 simplified? It might be hard but I need help and it's for tonight. Thanks!

Answers

0.08 is the answer because it was easy to do and it was good

Given that f(x) = x/2 +5,
a) Find f(2)
b) Find f^-1(x)
c) Find f^-1(5)

Answers

Answer:

f(2)=6

f^-1(x)=2x-10

f^-1(5)=0

hope it helps

Find the geometric mean of 24 and 45.

Answers

Hi! It’s 10 to the square root of 6.

The geometric mean of 24 and 45 is equal to 32.86.

Given the following data:

Numbers = 24 and 45.

What is geometric mean?

Geometric mean is an average value that is used to indicate the central tendency of a data set containing a group of numbers, especially by determining the product of their values.

Mathematically, geometric mean is given by this formula:

[tex]G=\sqrt[n]{x_1x_2...x_n}[/tex]

Substituting the given parameters into the formula, we have;

[tex]G = \sqrt[2]{24 \times 45} \\\\G = \sqrt{1080}[/tex]

G = 32.86.

Read more on geometric mean here: https://brainly.com/question/2292573

help me please I need

Answers

Answer:

I think the answer is A=49

A music collection includes 19 ROCK CDs, 12 COUNTRY CDs, 6 CLASSICAL CDs, and 5 HIP HOP
CDs. What is the probability that a CD randomly selected from the collection IS a classical CD?

Answers

Answer:

The probability is 6/42. If you need it simplified it's 1/7.

Step-by-step explanation:

If it's wrong please let me know :)

Carlos and Lily want to know the combined amount of money they made last week. They both made $12 per hour, but Carlos also made a $35 bonus. Carlos says the combined amount is 12C + 35 + 120 where Cis the number of hours he worked, and L is the number of hours Lily worked. Lily says the combined amount is 12(C+ L) + 35. Who is right? Explain.

Answers

Answer:

Lily is right

Step-by-step explanation:

Carlos made:

12C + 35

Lily made:

12L

Together they made:

12C + 35 + 12L = 12(C + L) + 35

Lily is right. We don't know what 120 means in Carlos's equation, he should put 12L for Lily.

what is the answer to the question -6=n+5n

Answers

Answer:

-1=n I believe would be the answer.

how do you do this? its a 5 mark question

Answers

You multiply both the sides and the top and add them

Answer:

336

Step-by-step explanation:

12*28

GRADE 7 MATH URGENT

A class of 25 children is having a pizza party. Each child will eat 3/8 of a pizza. How many pizzas do they need to order?

Answers

A. 8 pizza pies at 10 pc. per pie = 80 available pieces

B. Let X be the number of children. Number of pieces eaten = 5 per child = 5X.

c. 22 pieces are left over.

D. Combine line A and line C. Total number of pieces eaten = 80 original minus 22 left over. Result 58 pieces were eaten by X children: 58 = 5X.

E. Solve the equation 58 = 5X by dividing both sides by 5.

WHOOPS! Is this a trick question? Solving the above results in the answer that there are 11.6 children at the party. Hmmm. That 0.6 child is a question mark for me.

Looks like someone miscounted the pizza slices. Or omitted some pertinent information. But, I’m sure there is a logical answer.

Answer:

10 pizzas

Step-by-step explanation:

To find the answer for this question you need to multiply 3/8 by 25.

3/8 * 25 = 9.375

You can't buy .375 of a pizza so you round it up and get 10.

Jeremy received a Bill with a balance due of 25.60

Answers

Answer:

6.40$

Step-by-step explanation:

HOPE THIS HELPS

PLZZ MARK BRAINLEIST

The markings on the number line are evenly spaced. Label the other markings on the number line.

Answers

Answer:

A= -75

B= -60

C= -45

D= -15

E= 15

F=30

Step-by-step explanation:

Each point is 15 away, so you just add or subtract 15 based off of if it's a negative or positive number on the number line.

Hope this helped!

Tom has a 4-sided spinner and the table below shows the probabilities
that when the spinner is spun it will land on 1, 3 and on 4
Number
1
2
3
4
Probability
0.1
0.2
0.4
The spinner is spun once.
a) What is the probability that the spinner will land on 2?
Il
(1)
b) Which number is the spinner least likely to land on?
(1)
c) If Tom spins the spinner 80 times, work out an
estimate for the number of times the spinner will land on 3
(2)

Answers

Answer:

0.3

Step-by-step explanation:

it's the only one not there

$420 is divided between A, B and C. B receives $20 less than A, and C receives half as much as A and B together. how much does each receive?

Also could you explain the answer?

Answers

Answer:

A = $150

B = $130

C = $140

Step-by-step explanation:

Let the amount received by a be $x

b receives $20 less than a;

we have that;

b = x - 20

c receives half of Sum A and B

c = (x + x-20)/2

c = (2x-20)/2

c = x - 10

Add all and it gives 420

x - 10 + x -20 + x = 420

3x -30 = 420

3x = 420 + 30

3x = 450

x = 450/3

x =$150

a = 150

b = x - 20; 150 - 20 = 130

c = x-10

c = 150-10

c = $140

Which fraction does point A show?
A.3/7
B.3/4
C.8/5
D.7/4

Answers

Answer:

d 7/4

Step-by-step explanation:

Write the following mixed number as an improper fraction.

1 1/5

Answers

Answer:

6/5

Step-by-step explanation:

1 would equal 5/5 so add another 1 to get 6/5

A cylinder cooler has a diameter of 30inches and a height of 24 inches.Runners on a Marathon can use cone shaped cups to get a drink from the cooler.if the cups have a diameter Of 3 inches and a height of 4 inches,about how many full cups would be able to be filled from the cooler?Estimate useing 3.14 for pi.

Answers

Answer:

600 cups

Step-by-step explanation:

600. Cups turrrrrrrrrr

(10x3 - 4x2 – 3x) + (x4 + 4x + 7x2 – x)

Answers

Answer:
x^4 + 36

Explanation:
Simplify by collecting like terms.

Please help me please

Answers

Answer:

Step-by-step explanation:

Use the GCF (Greatest common factor) to factor the expression 3.02
+ 8x

Answers

Answer:

Step-by-step explanation:

if we vibe for 3 hrs and become freinds how long will we be freinds?

Answers

Answer:

it depends

Step-by-step explanation:

I could be very committed,

im 15 in july my name is mercedes. and im bi, I skate and taken

How many radians is 252°?
Give the exact answer in simplest form

Answers

Radian is a more advanced degrees measurement that is easier to use in trigonometry physics etc.

A full circle 360 degrees is 2pi radian.

We just need to find the ratio of 252 degrees to 360 degrees and multiply that by 2pi.

252/360*2pi(rad)

=126/180*2pi(rad)

=63/90*2pi(rad)

=21/30*2pi(rad)

=7/10*2pi(rad)

=7/5*pi (Radian)

Hope it helps and sorry for my bad grammar.

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