Mathematics High School

I need help with geometry

I Need Help With Geometry

Answers

Answer 1

Answer:

It 12

Step-by-step explanation:

This is because the scale factor between the triangles is 1.75, so I divide 21 by 1.75 and got 12

Hope this helped

Answer 2

We first have to find 2 pairs of sides that proportional.

35/20=42/24=7/4

and 21/b should be 7/4 as well because if we want the triangles to be similar the sides should be in proportion.

21/b=7/4

84=7b

b=12

Done!

Hope this helped, any questions about this just ask in the comments and I will answer.

Related Questions

If n + 7 = 10, evaluate 2n - 2
O 3
0 17
4
6

Answers

Answer:

The value of 2n - 2 is 4.

Step-by-step explanation:

Given the equation

[tex]n + 7 = 10[/tex]

Subtract  7 from both sides of the equation

[tex]n+7-7=10-7[/tex]

Simplify

[tex]n=3[/tex]

Now substituting n = 3 in the equation

2n - 2 = 2(3) - 2

          = 6 - 2

          = 4

Therefore, the value of 2n - 2 is 4.

If Lin runs21 laps at the same rate will it take her how many minutes

Answers

Answer:

25.2

Step-by-step explanation:

isabels class has collected 90 cans in a food drive they plan to sort the cans into n bags, with an equal number of cans in each bag. write an expression to show how many cans there will be in each bag.​

Answers

Answer:

cn=90, so long as c and n are whole numbers

Step-by-step explanation:

There are two variables in this equation you have here. One, n the number of bags, has already been given to you, because there can be any number of bags. The other, weĺl call it c, is the number of cans in each bag. Because there could be any number of bags, and the number of cans needed in each one is also a variable, you are left with more than one option. Any solution will work so long as the number of cans, c, per bag, n, is equal to the total, 90. There could be 9 cans in 10 bags, or 10 cans in 9 bags, or 15 cans in 6 bags or vice versa. The only way to define it for one answer is to have a set number of bags or cans per bag. Hope this helps!

hellpppppppppppppp pleaseeee

Answers

Answer:

x=3+√2 or x=3−√2

Step-by-step explanation:

For this equation: a=1, b=-6, c=7

1x2+−6x+7=0

Step 1: Use quadratic formula with a=1, b=-6, c=7.

x=

−b±√b2−4ac

2a

x=

−(−6)±√(−6)2−4(1)(7)

2(1)

x=

6±√8

2

x=3+√2 or x=3−√2

help please!! solve for x

Answers

im kinda bad at explaining, but basically what you have to do is find the angle to the right of the 50° angle. since theres an equilateral triangle, 180-50-90= 40. since the triangle x is in has 2 equal sides, 2 of the angles are 40. so, 180-40-40=100. sorry if that's off

Plz help The table shows the linear relationship between the
amount of chocolate chips in ounces and the amount
of oats in cups used in a dessert recipe.
What is the rate of change of the amount of
chocolate chips with respect to the amount of oats
used in this recipe?
Dessert Recipe
oz per cup
Oats
(cups)
Chocolate Chips
(oz)
3 oz per cup
100
3
6
2
oz per cup
A
12
D
2 oz per cup
18

Answers

Answer:

Step-by-step explanation:

2 2/3

Find the 10th term 1.2.4.8.

Answers

Answer:

512

Step-by-step explanation:

1+1 = 2

2+2 = 4

4+4 = 8

8+8 = 16

16+16 = 32

32+32 = 64

64+64 = 128

128+128 = 256

256+256 = 512

they add the answer by itself. hope this helps

solve the following for x 4(x+2) = 6x

Answers

Answer:

x = 4

Step-by-step explanation:

Answer:

x=4

Step-by-step explanation:

4(x+2)=6x

distribute 4:

4x+8=6x

Subtract 4x from each side:

8=2x

Divide both sides by 2:

x=4

40 liters increased by 25%

Answers

Answer:

%50 liters

Step-by-step explanation:

40 Increased By 25% Is 50.00


m : _____
b : _____
Equation : ______

PLEASE HELP ME !!!

Answers

Answer:are you saying mx+b

Step-by-step explanation: hopefully that helps you mark me brainlest please

and like

Consider the rectangular prism.



What is the surface area of the rectangular prism?

Answers

240 in 2 hope this helps

Answer:The answer would be 240in 2

Step-by-step explanation:10 times 6 is 60 times 4 is 240 I hope this helps.

What's the square root of 7

Answers

Answer:

2.645

Step-by-step explanation:

Answer:

[tex] \sqrt{7} = 2.65[/tex]

If two line segments have the same length, which of the following must be
true?
A. They form a right angle.
O B. They are equal.
C. They are congruent.
D. They share an endpoint.

Answers

Answer:

They are congruent

Step-by-step explanation:

find the missing side length lol help

Answers

the missing side length is 45.5
The answer is whatever someone said above me

| How do you write 1.4 x 102 in standard form?

Answers

Answer:

1.4279999999999999 x 10²

Step-by-step explanation:

The ratio of Sam's money to Buffy's is 1.2. If Sam has $3, how much money does Buffy have? Show your work please

Answers

if the ratio is 1:2,

sam has three dollars.
buffy has six dollars.

we know this because the ratio is 1;2, so we can multiply sam’s amount by two, because buffy’s amount is twice sam’s amount.

ANSWER: buffy has 6 dollars!!


if you need the new ratio: 3:6

Solve for x. (round to the nearest WHOLE NUMBER)
x
12.
14

Answers

x = 8
using the pythagorus theorem which states a^2+ b^2 = c^2
10^2 - 6^2 = 64
root of 64 = 8
hope this helps :)

Determine the similarity ratio (large to small) of the similar figures. A) 1:2 B)2.1 C) 3:1 D 3.2.​

Answers

Answer:

1:2

Step-by-step explanation:

Steve cycled 35 miles in 2 1/2 hours. What is the average speed that Steve traveled? miles per hour

Answers

Answer:

14 miles per hour

Step-by-step explanation:

The average speed would be the total distance divided by the total time = 35 miles divided by 2.5 hours is 14 miles per hour

PLEASE HELP ASAP WILL GIVE BRAINLEAST!!!!!!!

If the triangles are similar, what is the value of x?
A-x=16
B-x=38
C-x=42
D-x=55

Answers

Answer:

C- 42

Step-by-step explanation:

Answer:

C. x=42

Step-by-step explanation:

16 + 3x + y = 180

126 + 16 + y = 180

y = 38

16 + 3x + 38 = 180

54 + 3x = 180

3x = 126

x=42

A town has a population of 12,000 and grows at 5% every year what will the population after 12 years be to the nearest whole number

Answers

Your answer will be 21,550 because of 12,000*1.7958563=21,550

Lauren invests money in an account paying simple interest. She invests $50 and no money is added or removed from the investment. After one year, she has $50.50. What is the simple percent interest per year?

Answers

Based on the amount invested and the amount it grew to, the simple interest rate is 1%.

Lauren invested $50 and got $50.50 after a year.

What is the Simple Interest rate?

This rate can be found by the formula:

= (Difference in investment in year 1) / Amount invested x 100%

Solving gives:

= (50.50 - 50) / 50 x 100%

= 1%

In conclusion, the rate is 1%.

Find out more about simple interest at https://brainly.com/question/2294792.

Combine Like Terms:

5x – 2y + 12 z + 6y

SHOW WORK
will give brainliest

Answers

Answer:

5x+4y+12z

Step-by-step explanation:

i hope this help

Mary got a sales job at her father's company. She was paid $9 per hour plus a 5%commission on her sales. Last week sheworked 40 hours with sales of $5560. How much was she paid?

Answers

Answer:

Mary was paid $638

Step-by-step explanation:

Mary was paid 360 $ for working alone because

$40 * 9 = $360

Mary was paid $278

5 % * $5560 = $278

360 + 278 = 638 $

can someone pls help me with this before I fail

Answers

Answer:

Answer is C

Step-by-step explanat

The sum of two integers is 23 and the positive difference of the same two integers is 13. What is the product of these two integers?​

Answers

Answer:

jjrbhss3

Step-by-step explanation:

Answer:

90

Step-by-step explanation:

x+y=23

x-y=13

2x=23+13

2x=36

x=18

18+y=36

90

Kelly met Jesse and Liza at the max for breakfast. The graph shows Kelly’s speed during her 12 minute drive

Answers

Answer:

D. [tex]-360\,\frac{km}{h}[/tex]

Step-by-step explanation:

Physically speaking, average acceleration ([tex]\bar a[/tex]), measured in kilometers per square hour, is defined by following formula:

[tex]\bar a = \frac{v_{f}-v_{o}}{t_{f}-t_{o}}[/tex] (1)

Where:

[tex]v_{o}[/tex], [tex]v_{f}[/tex] - Initial and final speed, measured in kilometers per hour.

[tex]t_{o}[/tex], [tex]t_{f}[/tex] - Initial and final instant, measured in hours.

The initial and final instants are, respectively:

[tex]t_{o} = 5\,min\times \frac{1\,h}{60\,min}[/tex]

[tex]t_{o} = 0.083\,h[/tex]

[tex]t_{f} = 9\,min \times \frac{1\,h}{60\,min}[/tex]

[tex]t_{f} = 0.15\,h[/tex]

If we know that [tex]t_{o} = 0.083\,h[/tex], [tex]v_{o} = 60\,\frac{km}{h}[/tex], [tex]t_{f} = 0.15\,h[/tex] and [tex]v_{f} = 36\,\frac{km}{h}[/tex], then the average acceleration of Kelly is:

[tex]\bar a = \frac{36\,\frac{km}{h}-60\,\frac{km}{h}}{0.15\,h-0.083\,h}[/tex]

[tex]\bar a = -358.209\,\frac{km}{h^{2}}[/tex]

The correct answer is D.

Answer:

Step-by-step explanation:

What is the answer to this word problem??

Answers

Answer:

200

Step-by-step explanation:

40 x 5 = 200

3(x+3) as an equivalent expressions without parentheses

Answers

Answer:

3x + 9

Step-by-step explanation:

multiply 3 and x and 3 and 4

Answer:

3x+9

Step-by-step explanation:

HELP I NEED HELP ASAP

Answers

Answer:

D

Step-by-step explanation:

6x^2 + 10x^2 = 16x^2

2x-x = x

-8 + 14 = 6

16x^2 + x + 6

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