Mathematics High School

a student is creating a model of a concave lens. The diagram show her incomplete model​

A Student Is Creating A Model Of A Concave Lens. The Diagram Show Her Incomplete Model

Answers

Answer 1

Answer:

D

Step-by-step explanation:

D is correct.

Related Questions

b) Factorise fully
8x + 12x

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Answer:

20x simplified

4x(2+3) factored

A bicycle wheel has a diameter of 46cm what is the radius

Answers

Answer:

The radius is 23cm

Hope this Helps

Step-by-step explanation:

Answer:

Radius equals to approximately 23

Step-by-step explanation:

46/2

Please help 3/4
Solve the binomial
(2ab-3c)(2ab+3c)

Answers

Answer:

I’m answering so the other peep can get brainliest she’s correct I think I’m pretty sure I think so thx for points have a great day byee

Step-by-step explanation:

how many yards
carpeting is needed to cover a 60 feet length room and 40 feet width ​

Answers

Answer:

[tex]266[/tex] [tex]\frac{2}{3}[/tex] [tex]yards[/tex]

Step-by-step explanation:

1. Approach

First, convert the dimensions of the room from feet to yards. Remember, the conversion rate between feet and yards is, [tex]3feet=1yard[/tex]. Next, find the area of the room by multiplying the length by the width.

2. Convert the unit of measurement

The measurement unit is given in feet, one must convert it into yards. The conversion rate between yards and feet is, [tex]3feet=1yard[/tex].

[tex]60feet=20yards\\\\40feet=13\frac{1}{3}yards[/tex]

3. Find the area of the room

Now multiply the length by the width to find the area of the room.

[tex]20yards*13\frac{1}{3}yrads\\\\= 20 * \frac{40}{3}\\\\=\frac{800}{3}\\\\= 266\frac{2}{3}_{.}yards^{2}[/tex]

Which expression is equivalent to 4(2x +3)?

a.4 + 2x + 4 +3

B.8x + 12

c.8x + 3

d.4 + 2x + 12

Answers

Answer:

it is b i expect

Step-by-step explanation:

right?

find the area of E?? i really need this done please and thank you

Answers

Answer: 24 square inches

Step-by-step explanation:

To get the whole area Multiply length x width

12 x 7 = 84

Now we get the area of the space in the rectangle

6 x 5 = 30 and multiply that by 2 since there are 2 spaces

in the rectangle.

30 x 2 = 60

84 - 60 = 24

A pie chart uses 360 degrees to represent 45 people. How many people are represented by an angle of 152 degrees

Answers

Answer:  19 people will be represented by an angle 152 degrees.

Step-by-step explanation:

Set up a  proportional relationship to solve for this

[tex]\frac{360}{152} = \frac{45}{y}[/tex]        Cross multiply

360y = 6840   Divide both sides by 360

y =  19

im horrible with triangles​

Answers

Answer:

6 a - 13 b - 21 c - 13 d - 29 e -29 f - 122

y=15 and x=3

Step-by-step explanation:

Find the measure of ABD for rectangle ABCD

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The angle measure is 90°

Anyone know how to do this?!!

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Answer:

slope is -1/4

Step-by-step explanation:

[tex]\frac{-4}{12}[/tex]=[tex]\frac{-1}{4}[/tex]

[tex]\frac{-2}{8}[/tex]= [tex]\frac{-1}{4}[/tex]

and so on...

formula: [tex]\frac{x}{y}[/tex]

hope this helps!!!

What is the greatest common factor of 48, 24, and 32?

Answers

Answer:

8

Step-by-step explanation:

Answer:

It is 2

Step-by-step explanation:

The greatest common factor is 2 because 2×16=32

also works for 24 because 2×24=48

then yes it works again for 2×12=24

division is also very helpful

Packages of ramen noodles are on sale at the grocery store for $.20 each. Lucy decides to stock up since she had a $3 off coupon. If she can spend no more than $8, how many packages of ramen could she buy?

Answers

Answer:

55

Step-by-step explanation:

.20*55=11-3=8

i really need help please it is math

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Answer:

congruent

Step-by-step explanation:

Congruent. Because the base is the congruent of the square

Please help I’m running out of time

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Answer:

Matulog ka nalang..

Step-by-step explanation:

Hope it helps

hope it helps ..

please mark me as brainliest .. if u found it helpful

Which expression is equivalent to x^2+5x-36

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(x-4)(x+9) is equivalent to x^2+5x-36

all you need to do is factor the equation

Help ASAP I need it by tonight

Answers

Answer:

D. r  ≤  − 1

good luck, i hope this helps :)

Answer:

Step-by-step explanation:

Hello,

1. Follow PEMDAS, for instance, which is Parentheses, Exponents, Mult., Div., and so on.

This will help you simplify on each side of the inequality sign.

2. Signs of inequalities will switch (> becomes <, and < becomes >) when dividing by a negative number on both sides of an inequality.

Try to work with this first. If you need more help, let me know.

Mark dug a 20 foot hole in 4 hours. Which rational number shows the average depth Mark dug each hour? Check all that apply.


(A) –5


(B) [tex]\frac{-20}{4}[/tex]


(C) −[tex]\frac{4}{20}[/tex]


(D) −[tex]\frac{20}{4}[/tex]


(E) [tex]\frac{-4}{20}[/tex]


(F) [tex]\frac{-20}{-4}[/tex]

Answers

Answer:

A,B,D

Step-by-step explanation:

it just has to equal -5 lol

Answer:

A,B,D

Step-by-step explanation:

what is 24 x 0.02 mmmmmmmmm

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Answer:

the answer is 0.48

Step-by-step explanation:

your welcome

Urgent please help..

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8.60 cm is the answer to your question and i used calculator.net for help
The person above is correct

What is the distance from zero called? (I’m doing coordinates)

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Answer:

Step-by-step explanation:

The absolute value, as "distance from zero", is used to define the absolute difference between arbitrary real numbers, the standard metric on the real numbers. Complex numbers [ edit ] The absolute value of a complex number z {displaystyle z} is the distance r {displaystyle r} of z {displaystyle z} from the origin.

Answer:

absolute number

Step-by-step explanation:

evaluate the function when x = 0

Answers

Answer:

7

Step-by-step explanation:

Plug it in.....

h(0) = 2.5 * 0 + 7 = 7

anything times 0 is 0. the Answer would be 7.

Simplify the ratio 18:24:42

Answers

Answer:

for simplifying these ratio

we have to first

find out GCF of all

which is 6

now divide each of them with 6

then we will get. 3:4:7

hope it will help

Answer:

3:4:7

Step-by-step explanation:

First find HCF

HCF:6

18/6=3

24/6=4

42/6=7

Therefore the simplified ratio of 18:24:42 is:

3:4:7

PLEASE HELP AND EXPLAIN YOUR THINKING!!!!A storekeeper increased the price of hats by 5%.
If the price of a hat (after the increase) is $33.60, what
is the original price?

Answers

Answer:

$32

if you do 33.60*100=3,360

then you do 3,360/105 it would be 32

(sorry this explanation is bad)

Step-by-step explanation:

Answer: I think it’s 32?

A pole that is 2.7 m tall casts a shadow that is 1.76 m long. At the same time, a nearby building casts a shadow that is 44.25 m long. How tall is the building? Round your answer to the nearest meter.​

Answers

Answer:

81

Step-by-step explanation:

9x9

2x2

Answer: 81

Step-by-step explanation:

pls solve #4. very important

Answers

Answer:

Q2ΔABC~ΔDEC

Ratios of corresponding sides are equal:

DE/AB = DC/ACDE/40 = 15/(15 +9)DE = 40*15/24DE = 25Q3ΔABD~ΔBCD

Ratios:

AD/BD = BD/DCAD*DC = BD²16*(20 - 16) = BD²64 = BD²8 = BDQ4

If ΔABC ~ ΔXYZ, the ratios below should be equal:

AC/XZ = BC/YZ10/15 = 18/242/3 = 3/4

Ratios are different so the triangles are not similar

Jane works 54 hours in a certain week. Her basic work week is 40 hours and her basic wage is $600. If she is paid overtime at double time, what is Jane's total wage for this week?​

Answers

Answer:

Step-by-step explanation:

600/40 = $15 an hour

double: $30 an hour

30 x 14 = 420

600 + 420= $1020 for the week

The price, p, of a game system is on 25% sale.​

​

Find the new price of the system after the sale discount.​

​

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P(.25)-P= new price. Explained: multiply the price it already is by .25(25% as a decimal) then subtract it from the original price and that should give you the discounted price

9 is 25% of what number​

Answers

The correct answer is 36

Sam has 3 bottles of water. Together, sam and Dave have at most 12 bottles of water

Answers

Answer:

Dave has 9 bottles of water

Step-by-step explanation:

12-3=9

Hannah & Sal share 24 sweets.
5
1
Hannah gets - of them. Sal gets - of them.
NO
How many sweets do they each get?
24​

Answers

Answer:

Hannah = 20, Sal = 4

Step-by-step explanation:

Total number of sweets = 24

Ratio in which the sweets was shared;

Hannah : Sal = 5 : 1

Hannah gets:

Hannah = 5 / ( 5+1)  * 24 = 5/6  * 24 = 5 * 4 = 20

Sal gets:

Sal = 1 / ( 5+1)  * 24 = 1/6  * 24 = 1 * 4 = 4

Other Questions
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