PLEASE HELP 30 POINTS!!!!!
Is this an enlargement or a reduction? How do you know?
(One point for stating if it is an enlargement or reduction. Two points for explaining how you know that.)

Answer:

78.5

Step-by-step explanation:

The formula for area of a circle is pir^2

So we have 5 for r, so r^2 would be 25.

Using 3.14 for pi, we get the answer is 78.5

Answer:

78.5

Step-by-step explanation:

sry forgot a step

Answer:

how many marbles are in the jar on the teacher's desk

Step-by-step explanation:

a statistical question which can be answered by collecting data and in that data there will be variability in that data . This type of question is different from other type of questions .

Answer:

-13 - [tex]\frac{7}{4}[/tex]b

Answer:

3x<5+4

=3x<9

=x<9

3

x<3

-8x-19<21

-8x<21+19

-8x<40

x<40

-8

x<-5

Answer:

-3a+5b+7   -2x+7y+13   -3m-4   24+7a   5a+10   3m+3   6s+4

Step-by-step explanation:

Answer:

-3a+5b+7   -2x+7y+13   -3m-4   24+7a   5a+10   3m+3   6s+4

Step-by-step explanation:

Combine like terms and use distributive property.

Answer:

Step-by-step explanation:

−5ab+4a−2

Answer:

-5ab+4a-2

Step-by-step explanation:

(-2ab+4a-1) - (3ab+1)

-2ab+4a-1 -3ab-1 (you put them out of the brackets by following the procedures. )

-2ab-3ab+4a-1-1 (then you collect like terms)

-5ab+4a-2

Answer:

The cost of 1 apple is a third of the price of 3 apples

Step-by-step explanation:

google says that apples are $1.49 a pound

1=$1.49

3=$4.47

Answer:

Option B.

Step-by-step explanation:

If the cost of the house (y) is in thousands and area of the house is x ft².

Cost of the house is modeled by the equation given,

y = 0.06x + 60.5

By substituting the values in the line of best fit,

235 = 0.06x + 60.5

0.06x = 235 - 60.5

0.06x = 174.5

x = [tex]\frac{174.5}{0.06}[/tex]

x = 2908.33 ft²

x ≈ 2900 ft²

Therefore, Option B will be the correct answer.

Answer:

Step-by-step explanation:

12x12=144

19x12/2=228/2=114

114+144=258

Answer:

3:10 30%

Step-by-step explanation:

6:20 is the same as 3:10

Answer:

it is 3 / 10 or  30%

(take 6 / 20 and simplify)

Step-by-step explanation:

Since after I saw that after three different 6 shaded portions left 2 squares i reliezed that it wasn't exactly 33%, so the closest would be 30%.

Answer:

Step-by-step explanation:9/5 is the answer

(-5)^2 + (-9)^2 =c^2

25 + 81 = c^2

106= c^2

Sqr rt 106 = c

By using trigonometric relations, we will see that:

cot(θ) = 9/5.

We know that if an angle's terminal side passes through the point (x, y), then we can write the tangent as:

tan(θ) = y/x

In this case, we know that the terminal side passes through (-9, -5), then the tangent is:

tan(θ) = -5/-9 = 5/9

And the cotangent is the inverse of the tangent, then:

cot(θ) = 1/tan(θ) = 9/5.

If you want to learn more about trigonometric relations, you can read:

https://brainly.com/question/8120556

Answer:

C and D

Step-by-step explanation:

the answers are C and D.

Answer:

The Answer is Y. PLeASE GIVE ME BRAInLIEST

Step-by-step explanation:

Answer:

Y

Step-by-step explanation:

Nah, you can give the brainliest mark to me thanks

Answer:

-11

Step-by-step explanation:

(a+b) +(c+d)

plug in

(-5+15)+(-9-12)

type in calculator

you will get your answer (-11)

Answer:

-11 (b)

Well basically plug the numbers into the equation. Than solve.

Step-by-step explanation:

So (-5 + 15) + (-9 + -12) is what you get when you plug in the values. Than do the math. 10 + -21 = -11

There you go. Hope this helped.

Answer:

the answer is f.

Step-by-step explanation:

it is the only sensible answer. every 5 years it increases by ~40%.

Answer:

I agree

Step-by-step explanation:

1>m just states that 1 is greater than the variable

m<1 States that the variable is less than 1

They both say that the variable is less than 1 so that basically mean they're the same

Answer:

The line equation is y = 1.5x + 3

Fill the first space with '1.5' and the second with '3'

Step-by-step explanation:

The generic model for a line equation is:

y = ax + b

To find the parameters 'a' and 'b', we can use two points of the graph in the equation.

Using the point (0, 3), we have:

3 = 0*a + b

b = 3

Using the point (-2, 0) and the value of b above, we have:

0 = -2*a + b

2a = 3

a = 1.5

So the line equation is y = 1.5x + 3

Answer:

C

Step-by-step explanation:

If  The probability of spinning a “1” is 0.25, then the probability of spinning 4 ones is:

0.25*0.25*0.25*0.25 = 0.25^4 ≈ 0.004

(the four events are independent)

The pointer landed on 1 each time, which probability is very low. So, we can conclude that the spinner is not fair.

Answer:

B: 2 + √3

Step-by-step explanation:

None

Answer:

66°

Step-by-step explanation:

Complementary angles are those that add up to 90 degrees. Since a and b are complementary, we can write:

∠a + ∠b = 90

We already know that ∠a = 24°, so we can plug this in:

24 + ∠b = 90

∠b = 90 - 24 = 66°

Thus, the answer is 66°.

Answer:

b and c are the only correct answers.

Step-by-step explanation:

15 is not a prime factor as it is divided by 1,3,5 and 15.

Additional information:

Prime numbers are those numbers which can only be divided by itself .for instance:1,2,3,5,7 ,11,13 etc.

Composite number s are those numbers which can be also divided by other numbers,For instance: 4,6,8,10 etc

Hope it helps....

Answer:

common difference=-3

Step-by-step explanation:

[tex] - 13 - ( - 16) = - 13 + 16 = - 3[/tex]

Answer:

C

Step-by-step explanation:

The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.

Gradient=

[tex] \frac{y1 - y2}{x1 - x2} [/tex]

[tex]m = \frac{ - 12 - ( - 15)}{ - 5 - ( - 1)} \\ m = \frac{15 - 12}{1 - 5} \\ m = - \frac{3}{4} [/tex]

y= -¾x +c

To find c, substitute a coordinate.

When x= -1, y= -15

[tex] - 15 = - \frac{3}{4} ( - 1) + c \\ c = - 15 - \frac{3}{4} \\ c = - 15\frac{3}{4} [/tex]

Thus the equation of the graph is

[tex]y = - \frac{3}{4} x - 15 \frac{3}{4} [/tex]

Therefore the answer is C.

Answer:

There are 3 modes

Step-by-step explanation:

There are two 3s, two 6s, and three 7s

Answer:

142.4 cubic units is the correct answer

Step-by-step explanation:

right on edge

The volume of oblique cone, to the nearest tenth is,

⇒ 142.3 units³

The area that any three-dimensional solid occupies is known as its volume. These solids can take the form of a cube, cuboid, cone, cylinder, or sphere.

Since, WE know that,

Volume of oblique cone = (1/3) x π x r² x h

Given that,

Radius (r) = 4 units

Height (h) = 8.5 units

Thus:

Volume of oblique cone = (1/3) x π x 4² x 8.5

Volume of oblique cone = 1/3 × 3.14 × 16 × 8.5

Volume of oblique cone = 142.3 units³

Learn more about volume of oblique cone on:

brainly.com/question/26524753

#SPJ5

Step-by-step explanation:

im not sure but I think the answer is -4

Answer:

4

Step-by-step explanation:

Take away the negative signs:

-80/-20

80/20

Now, divide normally.

80 ÷ 20 = 4

Since a negative number divided by another negative number is positive, the quotient is still 4.

Therefore, the simplified fraction is 4.

Answer:

25

Step-by-step explanation:

4.6 + 1.2g = 54.6 -.8g

1.2g + .8g = 54.6 - 4.6

2g = 50

g = 25

Answer:

Hideki is draining a 45-gallon aquarium at a rate of 15 gallons per minute. Let's solve for the initial value of the linear function that represents thissituation. => 45 gallon aquarium at rate of 15 gallons per minute.

=> 45 gallon / 15 gallon = 3 minutes. Therefore with the rate of 15 gallons per minutes, Hideki will be able to finish the 45 gallon aquarium in 3 minutes.

Step-by-step explanation:

Hello hello!

Solving this is simple, just remember the vertical angles theorem. Due to this theorem, you are able to conclude that x+40 and 60 are equal in terms of their angle measure. This means that to solve this, we need to set both sides equal to each other and solve for x, and plug it in!

STEP ONE: 60 = x + 40

DO: Subtract 40 from both sides.

STEP TWO: 20 = x

DO: You've answered the question!