can you help me with something ​

Step-by-step explanation:

The area of a circle is given by :

A = πr²

r is the radius of the circle

(4) Diameter = 22 cm

Since, radius = diameter/2

r = 11 cm

Now, area of the circle,

[tex]A=\pi \times (11)^2\\\\A=380.13\ cm^2[/tex]

(5) Diameter = 30 cm

Since, radius = diameter/2

r = 15 cm

Now, area of the circle,

[tex]A=\pi \times (15)^2\\\\A=706.85\ cm^2[/tex]

(6) Diameter = 4cm

Since, radius = diameter/2

r = 2 cm

Now, area of the circle,

[tex]A=\pi \times (2)^2\\\\A=12.56\ cm^2[/tex]

So, the area of circles 4,5 and 6 are 380.13², 706.85² and 12.56² respectively.

Answer:

The correct answers are A and E

Step-by-step explanation:

Answer:

f(x) = x + 3y = x + 3x = y - 3Inverse is h(x) = x - 3

Answer:

f^-1(x) = x - 3

Answer:

Step-by-step explanation:

here you go mate

step 1

x-6 = 5(x + 2)  equation/Question

step 2

x-6 = 5(x + 2)  simplify

x+(-)6=5x+10

x-6=5x+10

step 3

x-6=5x+10  subtract 5x

-4x-6=10

step 4

-4x-6=10  add 6

-4x=16

step 5

[tex]\frac{-4x}{-4}=\frac{16}{-4} \\[/tex]

answer

x=-4

Answer:

$3.2775

Step-by-step explanation:

0.95 x 3.45 = 3.2775

Answer:

$3.27

Step-by-step explanation:

Answer:

+18,000

Step-by-step explanation:

Answer:

population of a certain city is increased by 10,000 people. write

a signed number to represent this population change.

a car corporation produced 920 fewer cars this month than last. write a signed number to represent this months change in production

Step-by-step explanation:

Answer:

Danny charges $45 for 5 hours of swimming lessons

Answer: Danny

Step-by-step explanation:

45/5=9 and 24/2=12 Danny charges 4.5 an hour and Martin charges 6 an hour so Danny is better.

Answer: 3/4

Step-by-step explanation:

Answer:

35 = x +4 (subtract 4 from both sides to isolate x)

x = 31

Step-by-step explanation:

I hope this helps :)

Answer:

Step-by-step explanation:

Answer:

11t-8

Step-by-step explanation:

19t-9+(-8t)+1

19t-9-8t+1

11t-8

Answer:

50 was the bill thanks so much for improving my knowledge

Answer:

[tex] -2.5f + 0.3f - 16 - 9 = -2.2f - 25 [/tex]

Step-by-step explanation:

Given:

[tex] -2.5f + 0.3f - 16 - 9 [/tex]

Required:

Simplify

SOLUTION:

[tex] -2.5f + 0.3f - 16 - 9 [/tex]

Add like terms together

-2.5f and 0.3f are like terms. If you add them together you'd get -2.5f + 0.3f = -2.2f

-16 and -9 are like terms. Adding toghter, you'd get -16 +(-9) = -25

So we would have:

[tex] -2.2f - 25 [/tex]

Answer:

a

Step-by-step explanation:

Answer:

31

Step-by-step explanation:

3x + 25 + 2x = 180

  3x + 2x = 180 - 25

  5x = 155

  x = 31

Answer:

The Jar of peanut butter

Step-by-step explanation:

The easiest way to do this is to calculate price per ounce of each unit.

We'll assign the 12 ounce jar to the variable s and the bulk to the variable b.

First create an equation to find the values of each product per ounce.

Since the 12 ounce jar(s) sells for 3.96 we can say it is 3.96 for every 12 ounces, or s = 3.96/12oz.

Simplify this equation and you get s = 0.33 per ounce.

For b we need to convert pounds to ounces.

There are 16 ounces per pound so the equation we get is:

b = 5.50/16oz

Simplified we get:

b =  about 0.34/oz

The smaller jar has a rate of $0.33/oz

The bulk has a rate of $0.34/oz

This means the answer is b. The jar of peanut butter has a cheaper unit rate.

Answer:

jar of peanut butter

Step-by-step explanation:

Answer:

I think the answer would be r=-9

Step-by-step explanation:

12+r=3

-12     -12

-------------

r=-9

y= -1 pretty sure that is correct

Answer:

2/3

Step-by-step explanation:

k = y/x

k = 2/3

Answer:

a

Step-by-step explanation:

edg 2020

For every minute that passes, the airplane descends 1 kilometer. then option a is correct.

Suppose that the considered linear equation is of the form

y=mx+c

Then, when we change x by 1 unit, then:

The rate of change is the slope. The formula for slope is

m = y2 - y1 / x2 - x1

Using the first two points, (0, 12) and (2, 10), we have

m = (10-12)/(2-0)

m  = -2/2

m = -1

This means the plane descends 1 km per minute which means in 3 minutes' time, the plane descends 3 km.

Therefore, option a. For every minute that passes, the airplane descends 1 kilometer.

Learn more about the rate of change of a linear equation here:

https://brainly.com/question/12786410

#SPJ5

Answer: HERE IS THE GRAPH AND PLS CORRECT ME IF I"M WRONG :)

Step-by-step explanation:

You're assuming that this data set represents all of Mrs. Hassaan's pupils. Certain students could be missing from the histogram - for instance, there could be one or two students who missed the test, but for certain reasons will be taking a make-up exam. Their grade would not be recording in this data set, but they still contribute to the class size, and so would be unaccounted for here.

Answer:

Q and w are similar BUT NOT CONGRUENT

Step-by-step explanation:

I TOOK THE QUIZ lol

Answer:

a

Step-by-step explanation:

Answer:

$28.00

Step-by-step explanation:

You start with 35.00.

Now 10% of this is 3.5.

Multiply by 2 because it's 20%.

You get 7, so 7 is 20% of 35.00.

35.00 minus 7 is 28.00.

The pair of pants will be 28.00 dollars!

Answer:

25

Step-by-step explanation:

90-65=25

Answer : The number of bottles should the pharmacy  technician prepare to provide the required dose are 4 bottles.

Step-by-step explanation :

As we are given that a patient needs a total dose of 50 grams of albumin and the pharmacy has 50 mL bottles of 25% Albumin in stock.

Now we have to determine the number of bottles should the pharmacy  technician prepare to provide the required dose.

As,

The pharmacy  has stock albumin = [tex]50mL\times \frac{25}{100}[/tex]

The pharmacy  has stock albumin = 12.5 mL

So,

Number of bottles should the pharmacy  technician prepare to provide the required dose = [tex]\frac{50}{12.5}[/tex]

Number of bottles should the pharmacy  technician prepare to provide the required dose = 4

Therefore, the number of bottles should the pharmacy  technician prepare to provide the required dose are 4 bottles.

Step-by-step explanation:

Movie pricing per person is $7.75

hockey pricing per person is $7.90

The Movie pricing is less per person because 7.90<7.75

I hope it answers

Answer:

movies

Step-by-step explanation:

im adding a picture of the explination because i worked it out

Answer:

100 miles

Step-by-step explanation:

20/60 = 1/3

1/3 x 300 = 100

Answer:

free ponts for me

Step-by-step explanation:

Answer:

Just cut the tree down and stick it to the teachers.

Step-by-step explanation: