Please help me understand

Answers

Answer 1

Answer:

Step-by-step explanation:

The scaled factor has to be 2 because 4*2=8. You can check 2 is the correct answer by doing 8/2, which is 4. The scaled factor has to be proportional so if one side of ABC was 2 but the same side on ABC prime or A’B’C’ was 10 it would not be proportional, not a scaled factor. Because 2*10 is 5, not 8. But it does not give any other side lengths so it is 4.

Related Questions

Which expression is equivalent to (24m+36)+(12m+18)?
A
6(4m+9)+3(4m+9)
B
4(6m+9)+3(6m+9)
C
12 (2m+6)+3(2m+6)
D
12(2m+3)+6(2m+3)

Answers

The answer is D because if you multiply the number on the outside by the numbers inside they should equal the problem in the question. If they don’t then it’s incorrect, but the correct answer is D.

Hope this helps:)

The equivalent expression will be;

⇒ 12 (2m + 3) + 6 (2m + 3)

Option D is true.

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The expression is,

⇒ (24m + 36) + (12m + 18)

Now,

Since, The expression is,

⇒ (24m + 36) + (12m + 18)

it can be written as;

⇒ (24m + 36) + (12m + 18) = 12 (2m + 3) + 6 (2m + 3)

Thus, The equivalent expression after solving,

⇒ 12 (2m + 3) + 6 (2m + 3)

Learn more about the mathematical expression visit:

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Help ASAP please!!!!!!

Answers

The answer is B
B = 30

Hope this helped!

A total of $8000 is invested: part at 5% and the remainder at 13%. How much is invested at each rate if the annual interest is $730?

Answers

Answer:

$3875 at 5%

$4125 at 13%

Step-by-step explanation:

Let x = amount invested at 5%.

Let y = amount invested at 13%.

x + y = 8000

0.05x + 0.13y = 730

Solve the first equation for x and sustitute into the second one to solve by the substitution method.

x = 8000 - y

0.05(8000 - y) + 0.13y = 730

400 - 0.05y + 0.13y = 730

0.08y = 330

y = 4125

x = 8000 - 4125

x = 3875

Answer:

$3875 at 5%

$4125 at 13%

The tape diagram represents the ratio of the time you spend tutoring to the time your friend spends tutoring. You tutor for 3 hours. How many hours does your friend spend tutoring?
You
Friend

Answers

Answer:

15 Hours

Step-by-step explanation:

So you have one block, and your friend has two.

We know that you work for 3 hours, this means that your only block must represent 3 hours.

And all the blocks represent the same amount of time, then each one of the two blocks of your friend also represents 3 hours.

Then in total, he tutored for 3 hours + 3 hours = 6 hours.

Therefore, you still have only one block, but now your friend has 5.

Using the same reasoning as above, we can conclude that each block represents 3 hours, and your friend has 5 of them, this means that he tutored for:

5*3 hours = 15 hours

Proof Hexagon:
Hey, I'm a German 11th grader and we currently have a tough geometry question: The centers A, B, C of three congruent circles that have no common points do not lie on the same straight line. From points A, B, C, the six tangents shown in the figure are placed on the circles that enclose a convex hexagon.Prove: The sums of the lengths of three pairs of not immediately adjacent sides of this hexagon are equal, i.e. | PQ | + | RS | + | TU | = | QR | + | ST | + | UP |
How can I prove this? I already found out that the triangles on the sides of the hexagon are not pairwisely congruent, as i first thought. I think my other idea that the red and orange triangles (attachment) are congruent, so the sum of the areas of the triangles on the above mentioned sides is equal, but the congruency of red and orange must be proven too. Any help is appreciated!

Answers

If I'm not wrong, then the answer will be:-

Given

• centers A, B, C

• three congruent sides

• have no common points

So, the result is:-

| PQ | + | RS | + | TU | = | QR | + | ST | + | UP |

Proved

I hope this answer is correct and helps you.

✍️ By Benjemin ☺️

4x + 16 ≤ 74 solve the inequality and show your work

Answers

Answer:

x ≤14.5

Step-by-step explanation:

4x+16≤74

Subtract 16 from the 74 and that gives you 58

Then divide each side by 4. 58/4=14.5

Hope this helps! sry if I get it wrong! :(

Answer: x ≤ 29/2

Explanation:

Subtract 16 from both sides

4x + 16 - 16 ≤ 74 -16

Simplify

4x ≤ 58

Divide both sides by 4

4x/4 ≤ 58/4

Simplify

x ≤ 29/2

Need some help on this question please provide evidence on how you came up with the answer aswell.

Answers

Answer:

No and No

Step-by-step explanation:

Squaring a odd, whole, number results in a even number 99% of the time with the only exception being 1 (1^2 equals 1). If m is 3 and n is 5, mn would be 15, so if both m and n are odd they don't always equal a even number.

Answer:

Step-by-step explanation:

If we are dealing with whole real numbers.

Both answers are based on the same idea.

The product of two numbers is even only if at least one of the two multiplicands is even.

The square of an odd number can only result in an odd number. The reverse is true as well. The square root of an odd number can only be an odd number.

This comes from number theory where multiplication is the repeated addition of one number a certain number of times.

If the first number is even, then every time you add itself again results in an even number, It does not matter if you add an even or odd number of times.

If the first multiplicand is odd, the sum of two odd numbers is always even, adding a third odd multiplicand again results in an odd number, the fourth is even, the fifth is odd, the pattern continues forever. The summation of an even number of odd multiplicands results in an even number. The summation of an odd number of odd multiplicands results in an odd number.

Cody buys a baseball bat for $164.50 and a baseball glove for $37.25. He estimates the total cost of the bat and glove by rounding each cost to the nearest $10. Drag numbers to the boxes to show how Cody rounds the costs.

Answers

164.50+37.50= 201.75

gtu

Convert 60 Litres to gallons

Answers

Answer:

15.18

Step-by-step explanation:

Carry on learning:)))

At birthday Party girls ate 7 3/4
pizzas and the boys ate 2 1/2 pizzas. How many pizzas were eaten at my party?

Answers

Answer:

10 1/4

Step-by-step explanation:

2 1/2 = 5/2

5/2 (2/2)= 10/4

7 3/4 = 31/4

10/4+31/4=41/4

41/4 = 10 1/4

Use the hundredths grid to answer the question.

A 10 by 10 grid is shown. 3 columns and 6 squares are red. 2 columns and 7 squares are blue.

Which of the equations is shown by the shaded area of the model?

A.
0
.
29

+

0
.
37
=
0
.
63
B.
0
.
34
+
0
.
23
=
0
.
57
C.
0
.
36
+
0
.
27
=
0
.
63
D.
0
.
24
+
0
.
33
=
0
.
57

Answers

9514 1404 393

Answer:

C. 0.36 +0.27 = 0.63

Step-by-step explanation:

3 columns and 6 squares of a hundredths grid is a representation of ...

0.30 +0.06 = 0.36

2 columns and 7 square is a representation of ...

0.20 +0.07 = 0.27

The total shaded area is the sum of these:

0.36 +0.27 = 0.63

The table represents a proportional
relationship between x and y. Find the value
of y when x = 38.
20
22
24
26
28
5
5.5
6
6.5
7

Answers

if you divide the x value by the y value you get 4. so 38/4 is 9.5

The value of y when x = 38 would be 9.5

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

The relations between variables, either direct or inverse proportional, can be built to find the desired measures in the problem.

Given that table represents a proportional relationship between x and y.

we just need to solve for the slope

Therefore,

k = x/y

k = 20/5

k = 4

when x = 38

y = 1.5x

y =(1.5) 38

y = 9.5

The value of y when x = 38 would be 9.5

More can be learned about proportions at;

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Can anyone please help me

Answers

9514 1404 393

Answer:

(a) f(3) < g(3)

Step-by-step explanation:

Put the number where the variable is and do the arithmetic.

f(3) = 4·3³ = 4·27 = 108

g(3) = 3·4³ = 3·64 = 192

108 < 192

f(3) < g(3)

Ross sold b boxes of cookies, and gabby sold 35 boxes of cookies. Together they sold a total of 69 boxes of cookies

Answers

69-35 = 34
the answer is b=34

I got 445.1 as the answer because it says round to the nearest tenth so 446 is wrong. is 445.1 right ?

Answers

Answer:

yes your correct

Step-by-step explanation:

Help please fast the format is Y-____=_____(x - ____) and i need the actual answer

Answers

9514 1404 393

Answer:

y -195 = 15(x -9)$60

Step-by-step explanation:

The form of the equation you are given is called "point-slope" form. The "slope" in this case is the per-hour fee. The point is (9 h, $195). Point-slope form generally looks like this:

y -k = m(x -h) . . . . . line with slope m through point (h, k)

Here, you have m=15, (h, k) = (9, 195), so the equation looks like ...

y -195 = 15(x -9)

The "one-time fee" is the cost when hours are zero.

y -195 = 15(0 -9)

y = 195 -9(15) = 60 . . . . add 195 to both sides, and evaluate

The one-time fee is $60.

PLEASE HELP ME AND HURRY TOO NO LIBKS PLEASE I WILL GIVE BRAINLIEST

Answers

Answer:

[tex] {(5 - ( - 2))}^{2} = {(5 + 2)}^{2} = 7 \times 7 = 49 \\ 49 \times ( - 3) = - 147[/tex]

using PEMDAS, the first thing you do is plug the numbers in for the variables. it should look like: -3(5-(-2))^2. next, solve for everything inside the parenthesis. 5-(-2) = 7, because two negatives equal a positive. next, solve for the exponent. 7x7= 49. finally, multiply 49 by -3 to get -147

Determine the unknown angle measures in the figure

Answers

Answer:

angle 3- 131

angle 2- 112

angle 5- 37

angle 1- 80

angle 4- 80

hope this helps :)- please crown me brainliest!!!

Step-by-step explanation:

<2 ( exterior angle ) , and exterior angle is the sum of two opposite interior angle;

<2=63°+49°= 112°.

<5= 180°-31°-112°= 37°<1+<5+63°= 180° = <1=180°-63°-37°= 80°<1=<4(vertically opposite angle) = 80°.<3+49°=180°(linear pair) = <3= 180°-49°= 131°.

hope this helps you.

Lauren invest $8000

Answers

Answer:

what are you wanting

Step-by-step explanation:

What’s the question?

What is the graph of y <= 5x + 2?

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪ {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The graph for the given inequality will be A

[tex]y \leqslant 5x + 2[/tex]

I think it’s b not really sure

PLZ HELP ASAP! Solve the following equation for x: 4x + 12y = -24

Answers

Answer:

This is impossible

Step-by-step explanation:

Answer: x= -6 - 3y

Step-by-step explanation:

You start at (5, 7). You move down 1 unit and left 5 units. Where do you end?

Answers

Answer:

(0, 6)

Step-by-step explanation:

5, 7

x, y

5, 7

-5 -1

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

0,6

If the temperature is 30, what is the temperature in Fahrenheit?

Answers

Answer: 86

Step-by-step explanation:

Answer:

It will be 86.0 Fahrenheit

Step-by-step explanation:

Macario is making 12 pounds of nut mixture with macadamia nuts and almonds. Macadamia nuts cost $9 per pound, and
almonds cost $5.25 per pound. How many pounds of macadamia nuts and how many pounds of almonds should Macario
use for the mixture to cost $6.50 per pound to make?

Answers

Answer:

Marcario should use 4 pounds of macadamia nuts and 8 pounds of almonds.

Step-by-step explanation:

Marcario should use 4 pounds of macadamia nuts and 8 pounds of almonds. Explanation given cost of macadamia nuts per pound=$9

cost of almond nuts per pound=$5.25

cost of the mixture per pound=$6.5

total pounds of the mixture to be made=12

let the pounds of macadamia nuts=x

pounds of almond nuts=y

total pounds of nuts=x+y= 12

x + y = 12(1)

9x +5,25y = 6.5(x+y)

9x+5.25y=6.5*12

9x+5.25y=78(2)

solving (1) and (2)

x=4 y=8

PLS STOP DELITING FOR NO REASON I NEED HELP.

Answers

Answer:

They both go to equivalent

Step-by-step explanation:

Translate the sentence into an equation.
Two times the sum of a number and 4 equals 9.
Use the variable y for the unknown number.

Answers

Answer:

The equation for this sentence is: 9 = 2(4y)

Answer:

2(y + 4) = 9

Step-by-step explanation:

Two times the sum of a number and 4 equals 9:

2(y + 4) = 9

Solve for the height of the building when the distance between the building and a person is 27
meters and the angle of elevation from the person is 49º. Construct a diagram to help you
solve. Round your answer to the nearest meter.

Answers

9514 1404 393

Answer:

31 m

Step-by-step explanation:

The relevant trig relation is ...

Tan = Opposite/Adjacent

With reference to the attached diagram, we have ...

tan(49°) = BG/GP

BG = GP×tan(49°) = (27 m)×tan(49°) ≈ 31.0599 m

The height of the building is about 31 meters.

At my birthday party, the girls ate 3 1/2 pizzas and the boys at 5 1/4 pizzas. How much more pizza did the boys eat than the girls?

Answers

1 3/4 more than the girls

Answer:

2 1/4 pizzas

Step-by-step explanation: 5 - 3 =2 so put 2 then 1/2-1/4= 1/4 so 2 1/4

What is 39,800,000 in scientific notation?

Answers

Answer:

3.98 x 10 to the power of 5

Step-by-step explanation:

Mark me brainleist if this is correct!

escribe los cinco primeros. multiplos de cada numero multiplos de 7 multiplos de 10

Answers

Answer:7 · 0 = 0 7 · 1 = 7 7 · 2 = 14

7 · 5 = 35 7 · 6 = 42 7 · 7 = 49

10 · 0 = 0 10 · 1 = 10 10 · 2 = 20

10 · 5 = 50 10 · 6 = 60 10 · 7 = 70

Step-by-step explanation:

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