How do you do ratios and proportion?

Answer:

The center of dilation is a fixed point in the plane. If the scale factor is greater than 1, the image is an enlargement (a stretch). If the scale factor is between 0 and 1, the image is a reduction (a shrink). If the scale factor is 1, the figure and the image are congruent.

Step-by-step explanation:

Answer:

The surface area of the pyramid is 340.2 cm²

Step-by-step explanation:

We can find the surface area of this pyramid by adding up the area of its square base and the four side triangles.

We're told that the base has a side length of 9.0 cm, so we know that its area is (9.0cm)², or 81cm²

We are told that the height of the side triangles is 14.4 cm.  To find the area of a triangle, simply multiply its width times its height, and divide by two:

(14.4cm × 9cm) ÷ 2

= 129.6cm² ÷ 2

= 64.8 cm²

Now we can multiply that by 4, and add it to the base area to get the total surface area of the pyramid:

4 × 64.8cm² + 81cm²

= 259.2cm² + 81cm²

= 340.2cm²

Answer:

(x, y) --> (x, -y)

Step-by-step explanation:

Sorry for not explaining it :/  Good Luck!

Answer: I just took the test so the answer would be J. (x,y) --> (-x,y)

Step-by-step explanation: hope this helped thx for the points :D

Answer:

ucg

Step-by-step explanation:

Answer:

2x+1=86

Step-by-step explanation:

I think thats the answer, Im not sure though

Answer:

obtuse

Step-by-step explanation:

hope this helps

and can you tell me if I was right or wrong?

Answer:

The answer is 3(100) + 3(20) + 3(3)

Step-by-step explanation:

Answer:

x=2

Step-by-step explanation:

Given: 3ln2 +ln8=2ln(4x)

          ⇒ln [tex]2^{3}[/tex]+ln8=2ln(4x)            ( m ln (n)= ln([tex]n^{m}[/tex]))

             ⇒ ln8+ln8= 2ln(4x)

            ⇒ 2ln8= 2ln(4x)

   comparing both sides, we get

  8=4x

  ⇒x=2

Answer:it’s either 2 or 16

Step-by-step explanation:

Answer:

Multiple 5 time 8 times 11 which is 440

Step-by-step explanation:

I took the same test

Answer:

440

Step-by-step explanation:

I took the test.

Step-by-step explanation:

of course the answer is linear

Answer:

I did this in my head so I'm not sure but I think it's -1/5=p

Answer:

Question 3: 93    Question 4: -18

Step-by-step explanation:

Use Order of Operations (BEDMAS - Brackets Exponents Division Multiplication Addition and Subtraction).

Question 3:

Start with the numbers inside the brackets.

3^2 (4+6) + 3

= 3^2 (10) + 3

Then, solve the exponents.

= 9 (10) + 3

Multiply 9 and 10.

= 90 + 3

Add the numbers.

= 93

Question 4:

Again, start with the brackets.

3 (4+2) - 6^2

= 3 (6) - 6^2

Then, solve the exponent.

= 3 (6) - 36

Multiply 3 and 6.

= 18 - 36

Subtract the numbers.

= -18 (You can do 36 - 18 which is 18, then add the negative sign)

Answer:

The 8th term of the geometric sequence 5, -15, 45, ... is:

[tex]a_8=-10935[/tex]

Step-by-step explanation:

Given the geometric sequence

5, -15, 45, ...

The first element of the geometric sequence is

[tex]a_1=5[/tex]

A geometric sequence has a constant ratio 'r' and is defined by  

[tex]a_n=a_1\cdot r^{n-1}[/tex]

computing the ratios of all the adjacent terms

[tex]\frac{-15}{5}=-3,\:\quad \frac{45}{-15}=-3[/tex]

The ratio between all the adjacent terms is the same and equal to

[tex]r=-3[/tex]

substituting [tex]a_1=5[/tex], and [tex]r=-3[/tex] in the nth term

[tex]a_n=a_1\cdot r^{n-1}[/tex]

[tex]a_n=5\left(-3\right)^{n-1}[/tex]

Determining the 8th term:

We have already got the nth term

[tex]a_n=5\left(-3\right)^{n-1}[/tex]

substituting n = 8 to determine the 8th term

[tex]a_n=5\left(-3\right)^{n-1}[/tex]

[tex]a_8=5\left(-3\right)^{8-1}[/tex]

[tex]a_8=5\left(-3^7\right)[/tex]

[tex]a_8=-5\cdot \:3^7[/tex]

[tex]a_8=-5\cdot \:2187[/tex]

[tex]a_8=-10935[/tex]

Therefore, the 8th term of the geometric sequence 5, -15, 45, ... is:

[tex]a_8=-10935[/tex]

Answer:

p=15

Step-by-step explanation:

24/8=3

3x5=15

Answer:

bratdth = 8 m

perimeter = 12 m

we know

perimeter of rectangle = 2(l+b)

24=2(l+8)

24=2l+16

24-16=2l

8=2l

8/2=l

l=4m

for second picture

breadth = 5m

length =4 m

p =?

we know

p= 2(l+b)

p=2(4+5)

p=2×9

p=18m

Answer:

4/25 as a decimal is 0.16

Hope this helps!!!

Answer:

5.36/20

0.268 dollars per oz

plz brainliest :)

do you want an explanation?

Answer:

y = 4x - 2

Step-by-step explanation:

Y-intercepts cross the y-axis at x = 0. So, we can plug (0 , -2) into an equation with m = 4.

-2 = 4(0) + b

-2 = b

y = 4x - 2

Answer:

You would've gotten 2 questions wrong to score a 90%.

Step-by-step explanation:

   </3 PureBeauty

Answer:

18

Step-by-step explanation:

20×90/100

here u go fffffcv

Answer:

-20

Step-by-step explanation:

as you can see you can still see the 6s, whats the difference between 40 and 20? its 20, its like skip counting but negative, the answer couldve been "20" if it made the number go potitive but its negative so the answer is -20

Answer: Displacement=12 m north

Step-by-step explanation:

12 m north

Let’s assume

north= positive

south=negative

12+(-16)+22+(-6)=12

Answer:

30 points

Step-by-step explanation:

The slope is 0

Because its not going up, the slope isn’t negative or positive so its moving but it isn’t rising so its 0. If it were going up but not side there would be no slope, but for this its 0

Answer:

Area of the square tile is 49 square inches.

Length of the one side of the square tile is :---

Length=√Area=√49=√7²=7 inches

Force = mass × acceleration

acc= force / mass

84N/89kg

= 0.94m/s

The acceleration of the runner is 0.9 m/[tex]s^{2}[/tex].

We have a runner has a mass of 89 kg he produces a force of 84 Newtons between the ground and his running shoes.

We have to determine the acceleration of the runner.

The force on a body is the product of mass and acceleration. Mathematically -

F = ma

According to the question, we have -

Force = 84 N

Mass = 89 Kg

Therefore -

F = ma

84 = 89 x a

a = 84/89 = 0.9 m/[tex]s^{2}[/tex]

Hence, the acceleration of the runner is 0.9 m/[tex]s^{2}[/tex].

To solve more questions on Force, visit the link below-

https://brainly.com/question/20841272

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Answer:

x8

Step-by-step explanation: bacause if you see and look really close

The translations of the graph of the parent function [tex]f(x) = x^2[/tex]  that result in the graph of [tex]g(x) = (x + 2)^2 + 6[/tex] will be that the parabola moved  [tex]2[/tex]  units to the left and  [tex]6[/tex] units up.

Translation is the act or process of changing completely. In this also the graph changes or transform. i.e. in the graph values of the expression are changing and forming new shape.

We have,

Parent Quadratic equation   [tex]f(x) = x^2[/tex]

And,

Translation of graph  [tex]g(x) = (x + 2)^2 + 6[/tex]

So,

Parent quadratic function works in the form of  [tex]f(x) = a(x-h)^2 + k[/tex]

Here,

"h" tells if the vertex of the parabola is going left or right.

"k" determines if the vertex of the parabola is going up or down.

So, According to the question;

We have,

Translation of graph  [tex]g(x) = (x + 2)^2 + 6[/tex]

So,

From equation we find out that the vertex of the parabola moved  [tex]2[/tex]  units to the left and  [tex]6[/tex] units up.

(Always remember if moving left means  sign would be of plus because in parent quadratic function is in the form of  [tex]f(x) = a(x-h)^2 + k[/tex]  we have minus sign in it.)

Hence, we can say that the Translation of the graph of the parent function [tex]f(x) = x^2[/tex]  that result in the graph of [tex]g(x) = (x + 2)^2 + 6[/tex] will be that the parabola moved  [tex]2[/tex]  units to the left and  [tex]6[/tex] units up.

To know more about Translation click here

https://brainly.com/question/3099136

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Answer:

Ariana has 7 dimes and 14 nickels

Step-by-step explanation:

Nickel = 0.05

Dime = 0.10

1.40 ÷ 2 = 0.70

7 x 2 = 14

because Adriana has twice the nickels as dimes and half of the 1.40 is dimes so the other half is nickels.

nickels x 2 = 14

Answer:

hi

Step-by-step explanation: