Find the area of triangle ABC.
A. 24 cm
B. 32 cm2
C. 48 cm2
D. 64 cm
E. 128 cm2
I don’t need an explanation just the answer thank you c:
Answer:
24 centimetre
hope it is helpful
Can someone plz help me
Answer:
i think its c
Step-by-step explanation:
Answer:
The answer is C. 5a² - 4a + 1
Step- by- Step:First you want to Distribute the Negative Sign:
= 10a² + 3 − 5a + −1 (2 + 5a² − a)
= 10a² + 3 + −5a + (−1) (2) + −1 (5a²) + −1 (−a)
= 10a² + 3 + −5a + −2 + −5a² + a
Add Like Terms:
= 10a² + 3 + −5a + −2 + −5a² + a
= (10a² + −5a²) + (−5a + a )+( 3+ −2)
= 5a² + −4a + 1
Happy To Help! :)
Please help!
Eric has $4,610 in a savings account that earns 4% interest, compounded annually.
To the nearest cent, how much will he have in 2 years?
Use the formula B = p(1 + r)t, where B is the balance (final amount), p is the principal (starting amount), r is the interest rate expressed as a decimal, and t is the time in years.
$ ___
Answer:
$ 4,986.18
Step-by-step explanation:
A = $ 4,986.18
A = P + I where
P (principal) = $ 4,610.00
I (interest) = $ 376.18
please help me with math
Answer:
592 sq. ft.
Step-by-step explanation
area of front and back=2[12×6]+2[1/2×12×8]=144+96=240 ft²
side area=2[(6+10)×11]=2×176=352 ft²
Total surface area=240+352=592 square feet.
Triangle CDE is translated down into the right forming triangle C’D’E’. Which congruency statement is correct?
Answer:
B: DCE=D'C'E'
I hoped this helped you!
The required Triangle DCE is congruent to triangle D'C'E'. Option B is correct.
What is congruent geometry?In geometry, two figures are congruent if they have the same shape and size, and all their corresponding parts (sides, angles, and vertices) are congruent. Congruent figures can be moved, rotated, or reflected without changing their shape or size.
Here,
Triangle DCE is congruent to triangle D'C'E'.
This is because a translation is a type of transformation that preserves the shape and size of the original figure, so the two triangles are congruent with each other.
Thus, the required Triangle DCE is congruent to triangle D'C'E'. Option B is correct.
Learn more about congruent geometry here. https://brainly.com/question/12413243
#SPJ7
Which represents the reflection of f(x) = StartRoot x EndRoot over the x-axis?
Step-by-step explanation: For edge2020 it is C graph.
There are 25 students in a science class. Twenty percent of the students are randomly selected to participate in a teacher evaluation. How many combinations of students are possible?
Answer: 53,130 possible combinations
Step-by-step explanation:
First, we want to find how much is the 20% of 25.
This is:
N = (20%/100%)*25 = 5.
So 5 students out of 25 are selected.
When we want to calculate the number of combinations of N elements it a group of K elements, we have:
[tex]C = \frac{N!}{(N - K)!*K!}[/tex]
Here N = 25, and K = 5
[tex]C = \frac{25!}{20!*5!} = \frac{25*24*23*22*21}{5*4*3*2*1} = 53,130[/tex]
so we have 53,130 combinations.
Find a unit rate: Joel ran 1500 meters in 5 minutes, 5 seconds.
Answer:
minutes
Step-by-step explanation:
Jordan prepares 200 name tags to use at a
meeting. The number for each color of the
name tag is described below.
• 35% of the name tags are blue
•
3
8
of the name tags are yellow
• all of the remaining name tags are red
How many of Jordan’s name tags are red?
Answer:
number of red tags = 200 - 70 - 38 = 92
Step-by-step explanation:
Jordan has a total of 200 name tag and the tags have different varieties of colors. The tags have blue, yellow and red color . Let us find the number of blue tags
number of blue tags = 35% of 200
number of blue tags = 35/100 × 200
number of blue tags = 70
The number of yellow tags = 38
The remaining number of tags are red color. Therefore the number of red tag will be the total number of tag minus the number of blue tags and the number of yellow tags.
number of red tags = 200 - 70 - 38 = 92
The volume of this rectangular prism is 70 cubic units. If the area of the base is 28 square units, what is the height of the prism.
Answer:
height = 2.5 units
Step-by-step explanation:
The volume of a rectangular prism is given by the product of its base area and its height. If the area of the base is 28 square units and the volume is 70 cubic units, we can find the height as follows:
Volume = base area * height
70 = 28 * height
height = 70 / 28
height = 2.5 units
The height of the rectangular prism is 2.5 units.
please answer quick!!
Answer: B
Step-by-step explanation:
[tex]\frac{2}{7k}(k-7)[/tex]
[tex]\frac{2k-14}{7k}[/tex]
[tex]\frac{2k}{7k}-\frac{14}{7k}[/tex]
[tex]\frac{2}{7}-\frac{2}{k}[/tex]
PLEASE HELP LAST QUESTION
Answer:green area- triangle area = 72-9 = 63
Step-by-step explanation:
The following points for a function are graphed in the coordinate plane: (0, 4), (1, 5), (2, 6), and (3, 7).
What function is being graphed?
y = 4x
y = 2x + 3
y = x + 4
3x + 4
Answer:
y = x + 4
Step-by-step explanation:
I have attached the work to your problem below.
Please see the attachment.
I hope this helps.
Answer:
y = x + 4
Step-by-step explanation:
I took the lesson and got it correct
A bag contains 3 red marbles, 5 blue marbles, and 4 green marbles if three marbles are drawn out of the bag what is the exact probability that all three marbles drawn will be blue?
Answer:
3 + 5 +4 = 12
3/12
= 1/4
Step-by-step explanation:
1. add the marbles together
2. divide the number of marbles drawn out by the total number of marbles.
A flag pole broke in a storm it was originally 81 feet tall 28 feet are still sticking straight out of the ground where it snapped but the remaining piece has changed over and touches the ground some distance away how far away is the end of the pool from the base of the pool along the ground
Answer:
Step-by-step explanation:first u need to buy then break it into half with ur friend then ur friend will get all and u will only get one but u will be lonely if u don’t tell ur friend to give u
On a certain standardized test used for college entrance purposes, the mean score was 21 and the standard deviation was 5. The distribution was approximately normal. Carlos scored 31, two standard deviations above the mean. A total of 1.5 million people across the country took the test at the same time as Carlos. How many people had scores lower than Carlos?
a. 1,465,500 people
b. 977,000 people
c. 204,000 people
Answer:
A
Step-by-step explanation:
Carlos' score was 2 standard deviations from the mean, so his z-score was 2.0. You can either use the empirical 68-95-98.5 rule, or you can plug it into your calculator as normalcdf(-999, 2) = .977
So 97.7% of people had a score lower than Carlos!
.977 * 1.5 million = 1,465,500 people
Awaste management company is designing a rectangular construction dumpster that will be twice as long as it is wide and must hold 19y * d ^ 3 of debris. Find the dimensions of the dumpster that will minimize its surface area.
Answer:
1.92 yd x 3.83 yd x 2.58 yd
Step-by-step explanation:
We have given a rectangular base, that its twice as long as it is wide.
It must hold 19 yd³ of debris.
Lets minimize the surface area, subject to the restriction of volume (19 yd³)
The surface is given by:
[tex]S=2(w*h+w*2w+2wh)=2(3wh+2w^2)[/tex]
The volume restriction is:
[tex]V=w*2w*h=2w^2h=19\\\\h=\frac{9.5}{w^2}[/tex]
replacing h in the surface equation, we have:
[tex]S=2(3wh+2w^2)=6w(\frac{9.5}{w^2})+4w^2=57w^{-1}+4w^2[/tex]
Derivate the above equation and set it to zero
[tex]dS/dw=57(-1)w^{-2} + 8w=0\\\\57w^{-2}=8w\\\\w^3=57/8=7.125\\\\w=\sqrt[3]{7.124} =1.92[/tex]
The height will be:
[tex]h=9.5/w^2=9.5/(1.92^2)=9.5/2.69=2.58[/tex]
Therefore,The dimensions that minimize the surface are:
Wide: 1.92 yd
Long: 3.83 yd
Height: 2.58 yd
What's the x for
-2(x+3)=-10
Answer:
[tex]x=2[/tex]
Step-by-step explanation:
[tex]-2(x+3)=-10\\\mathrm{Divide\:both\:sides\:by\:}-2\\\frac{-2\left(x+3\right)}{-2}=\frac{-10}{-2}\\Simplify\\\frac{-2\left(x+3\right)}{-2}=\frac{-10}{-2}\\\frac{-2\left(x+3\right)}{-2}\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{-b}=\frac{a}{b}\\=\frac{2\left(x+3\right)}{2}\\\mathrm{Divide\:the\:numbers:}\:\frac{2}{2}=1\\=x+3[/tex]
[tex]\mathrm{Simplify\:}\frac{-10}{-2}:\quad 5\\\frac{-10}{-2}\\\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{-a}{-b}=\frac{a}{b}\\=\frac{10}{2}\\\mathrm{Divide\:the\:numbers:}\:\frac{10}{2}=5\\=5\\x+3=5\\\mathrm{Subtract\:}3\mathrm{\:from\:both\:sides}\\x+3-3=5-3\\\mathrm{Simplify}\\x=2[/tex]
Answer:
x+3=-10/-2=5
x=5-3=2
Sylvia read that the height of the Empire State Building is 443.2 m and wants to build a scale model of the building in her room. She knows that the height of the ceiling in her room is 8 ft. Write a scale that would allow a scale model of the Empire State Building in Sylvia's bedroom so that the top of the building would just touch her ceiling.
Answer:
Scale of 181: 1
Step-by-step explanation:
The first thing to do is to pass the feet by the meter, to work in the same units and thus create a consistent scale:
We know that one foot equals 0.3048 meters, therefore:
8 feet * 0.3048 meters / 1 foot = 2.4384 meters
So the scale would be:
443.2 / 2.4384 = 181.75
Which means that it is best to make a scale of 181: 1
Where 181 meters from the Empire State Building would equal 1 meter at home 0 181 inches would equal 1 inch at home
PLEASE HELP MATH!!!!!! MULTIPLE CHOICE!!
Choose 1 answer:
(Choice A)
sin(30°)
(Choice B)
cos(30°)
(Choice C)
sin(300°)
(Choice D)
cos(300°)
(Choice E)
sin(330°)
(Choice F)
cos(330°)
Answer:
B should be the correct answer
Step-by-step explanation:
don't quote me on that
2) A player took 12 shots and
made 9. What percent did
he make?
Answer: 9/12 equals 0.75 so 75 percent is the answer.
Step-by-step explanation:
Can anyone help me out on this, please? I'll mark you brilliant. :)
try 22
Step-by-step explanation: Maybe it could work, hope it. helps,
Khan?
What’s the median of this set of data 71,37,22,81,65,54,52,41,48,71
Answer:
I'm glad you asked!
Step-by-step explanation:
Step 1:Order the numbers from least to greatest.
[tex]22,37,41,48,52,54,65,71,71,81[/tex]
Step 2:Now find the middle number.
[tex]22,37,41,48[/tex],52,54[tex],65,71,71,81[/tex]
Step 3:Since there are two numbers,we add them together then divide by 2.
[tex]52+54 =106[/tex]
[tex]106/2=53[/tex]
The median is 53.
Answer:
53
Step-by-step explanation:
How to round three decimal places
Answer:
go FORWARD 3 places
Step-by-step explanation:
To measure the height of a mountain, a surveyor took two sightings, one 1000 feet farther from the mountain of the other. The first angle of elevation was 85° and the second was 83°.
What is the mountain’s height?
Answer:
Height of the mountain was 28331.8 feet.
Step-by-step explanation:
An observer took the measurements from two sights C and D.
Point D was 1000 ft away from the earlier sight point C.
Angle of elevations from points C and D were 85° and 83° respectively.
From ΔABC,
tan85 = [tex]\frac{h}{x}[/tex]
x = [tex]\frac{h}{tan85}[/tex] -----(1)
Similarly, from ΔABD,
tan83 = [tex]\frac{h}{(x+1000)}[/tex]
x + 1000 = [tex]\frac{h}{tan83}[/tex]
x = [tex]\frac{h}{tan83}-1000[/tex] -----(2)
Now we substitute the value of x from equation (1) in the equation (2)
[tex]\frac{h}{tan85}=\frac{h}{tan83}-1000[/tex]
0.122785h - 0.087488h = 1000
0.035296h = 1000
h = 28331.822 ft
h ≈ 28331.8 ft
Therefore, height of the mountain was 28331.8 feet.
Simplify square root of five times the quantity six minus four square root of three.
6√5 - 4√3-
i took the test but sorry if its wrong
Bryan bought 10 daisies and 5 sunflowers. Each daisy cost $2 and each sunflower cost $5. Bryan had $12 left after he made his purchase.
How much money did Bryan spend on the flowers? Which info isnt needed to answer this question?
Answer:
Bryan spent $45 on flowers. The last sentence isn't needed to answer this question.
Step-by-step explanation:
If you multiply 10 by 2, then 5 by 5, and add it at the end you get 45.
PLEASE HELP THIS IS SUPER URGENT
Answer:
-1
Step-by-step explanation:
x+4/4 = 9/12
If you plug in -1, then 3/4=9/12.
This is a true proportion.
Hope this helps!!! PLZ MARK BRAINLIEST!!!
What is the difference between -4 and 6?
O -10
0 -2
2
10
Answer:
10
Step-by-step explanation:
Subtract -4 from 6
6 - -4
Subtracting a negative is like adding
6 +4
10
Answer:
-10
Step-by-step explanation:
If you subtract 6-(-4) it gives you -10
Hope this helps
How many solutions does the following equation have?
5x+8-7x=-4x+15x+8−7x=−4x+1
Answer:
This has one solution
Step-by-step explanation:
5x+8-7x=-4x+1
Combine like terms
-2x+8 = -4x+1
Add 4x to each side
-2x+4x+8 = -4x+4x+1
2x+8 = 1
Subtract 8 from each side
2x+8-8=1-8
2x = -7
Divide by 2
2x/2 = -7/2
x = -7/2
Answer:
One solution
Step-by-step explanation:
did it on khan:)