The correct answer gets brainliest.
In the diagram below, what are AC and BC?
Answers
Answer:
AC = 5 +5√3 ≈ 13.66
BC = 5√2 ≈ 7.07
Step-by-step explanation:
You want the measures of sides AC and BC in ∆ABC with AB=10, A=30°, C=45°.
Special trianglesDrawing altitude BD divides the given triangle into two "special" right triangles:
∆ABD with side lengths BD : AD : AB = 1 : √3 : 2∆CBD with side lengths BD : CD : BC = 1 : 1 : √2Using these ratios, we find ...
BD = AB/2 = 10/2 = 5
AD = BD√3 = 5√3
CD = BD = 5
BC = BD√2 = 5√2
Then ...
AC = AD +CD = 5√3 +5
The side measures are AC = 5+5√3 ≈ 13.66, and BC = 5√2 ≈ 7.07.
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Related Questions
Combine like terms to simplify the expression.
−4y−4+(−3)
Answers
Answer:
- 4y - 7
Step-by-step explanation:
We know that,
( - ) × ( - ) = ( + )
( - ) × ( + ) = ( - )
( + ) × ( + ) = ( + )
Accordingly, let us solve the above expression.
- 4y - 4 + ( - 3 )
Solve the brackets.
- 4y - 4 - 3
Combine like terms.
- 4y - 7
Answer:
[tex] \sf \: -4y - 7 [/tex]
Step-by-step explanation:
Now we have to,
→ Simplify the given expression.
The expression is,
→ -4y - 4 + (-3)
Let's simplify the expression,
→ -4y - 4 + (-3)
→ -4y - 4 - 3
→ -4y - (4 + 3)
→ -4y - (7)
→ -4y - 7
Hence, the answer is -4y - 7.
Using the distributive property, write an equivalent expression to 16 + 42. please...
Answers
Answer:
Step-by-step explanation:
2(8+21)
Step By Step Explanation:
draw a 55 degree angle
Answers
Answer:
Step-by-step explanation: use a protractor and make a dot in the hole in the center of the line in the protractor. then find 55 on the protractor and draw a straight line from the dot you made to the number 55. if there are no numbers on the protractor, then draw a right angle (90 degrees) and draw a line through it. (45 degrees). Then draw a line through the middle of it, but make it closer to 45 degrees. (You can draw more placement lines if it helps you)
Answer:
Step-by-step explanation:
As 55 is not divisible by 15, we cannot construct 55 degree angle with the help of a compass or a ruler.
So, we need to use the protractor.
Here's how:
Step 1: Draw a random line.
Step 2: Place Protractor on the line as shown.
Step 3: Point the 55 degrees
Step 4: Draw a line towards it.
Hope it helped. Pls mark me the BRAINLIEST!
Tickets for a concert cost $35 for balcony seats and $75 for floor seats. Tickets at the same venue for a theatrical production cost $25 for balcony seats and $60 for floor seats. If tickets for all the seats are sold, the venue generates $27,750 in revenue for a concert and $21,750 for a theatrical production. Which system of equations can be used to find the number of floor seats and balcony seats in the theater?
A.35 x + 75 y = 21,750. 25 x + 60 y = 27,750.
B.35 x + 75 y = 27,750. 25 x + 60 y = 21,750.
C.75 x + 35 y = 27,750. 25 x + 60 y = 21,750.
D.75 x + 35 y = 21,750. 25 x + 60 y = 27,750.
Answers
Answer:
B. 35 x + 75 y = 27,750. 25 x + 60 y = 21,750
Step-by-step explanation:
Concert:
- Total: $27,750
- Balcony seats: $35
- Floor seats: $75
Theatrical production:
- Total: $21,750
- Balcony seats: $25
- Floor seats: $60
Jean completely filled a box with 12-inch
cubes. The box was a rectangular prism measuring 412
inches long, 312
inches wide, and 112
inches high. How many cubes did Jean use to fill the box?
Answers
Answer:
i think its 35
Step-by-step explanation:
but im not really sure
PLEASE ANSWER THIS BEFORE 2/2!!!
Mrs. Hines is making dinner for herself, her husband, and their 3 kids. She bought 2 bags of carrots that had the same amount of carrots in each bag. She cut each carrot into eighths to make small carrots. She put 9 small carrots on each person's plate for dinner. Then she put 12 small carrots into a salad for dinner. She put the remaining carrots in a plastic bag so she could eat them at work tomorrow. If she had 23 carrots to take to work, how many carrots came in each bag?
Answers
Answer: 40
Step-by-step explanation:
9 carrots in 5 plates is 45. 12 carrots in salad and 23 in the plastic bag. Add 45, 12 and 23 and get 80. Divide 80 by 2 and get 40.
Jamie has a table top that he wants to cover in contact paper. The table top has the following dimensions.
Length: 3.5 ft.
Width: 3.5 ft.
Height: 0.25 ft.
How many square feet of contact paper does he need to cover the entire tabletop?
Answers
Answer: I do believe that the answer is 7.25 ft squared i hope that im right and this helps you
Step-by-step explanation:
add 3.5+3.5=7
add 7+0.25=7.25ft sqaured
Answer:
Step-by-step explanation:
3.5 as a fraction is 7/2 or 35/10 which equals 3 1/2 3.5 again is 3 1/2 0.25 is 1/4 because 0.25 is in the hundredths place which is 25/100 25 times 4 is 100 so that's why it equals 1/4 so we have to add 3 1/2 + 3 1/2 + 1/4 3+3 is 6 1/2 plus 1/2 is 1 6+1 is 7+ 1/4 is 7 1/4 If you do 25 times 4 its 100 25, 50, 75, 100 1/4 is equal to 25/100 because that's 1 timenatalia earns $24 an hour at her part-time job. she wants to earn at least $204 this weekend. what are the possible numbers of hours, n, she must work this weekend to earn at least $204
Answers
Answer:
8.5
Step-by-step explanation:
1 hour = $24
x hour = $204
= 204/24
= 8.5
Hope this helps
help me with this pleaseeeee
Answers
Answer:
the value of z is 89
valu of x is 3
hope it helps
PLEASE HELP!!! 7(2/3q + 9) Find the product.
Answers
Answer:
7(2/3q+9)
14/3q+63
Step-by-step explanation:
7 • 2/3q = 14/3q
7 • 9 = 63
The answer is 14/3q + 63
Hope this helps :)
Which of the following statements are true about the right triangle? Select all that apply.
Answers
Answer: C and D.
Step-by-step explanation:
Is the answer
(JUST FOR FUN IM OFFERING POINTS) 8 ÷ 5460
Answers
Answer:
[tex] \frac{2}{1365} [/tex]
or
[tex]1.47[/tex]
Answer:
[tex]\frac{8}{5460} =\frac{2}{1365}=0.00146520147[/tex]
Step-by-step explanation:
8/4 = 2
5460/4 = 1365
[tex]\frac{8}{5460} =\frac{2}{1365}=0.00146520147[/tex]
Which expression can you use to find the probability that the spinner lands on 1 or 4
Answers
Answer: 2/5 + 1/10
the probability of the spinner landing in 1 or 4 is 5/10 = 1/2.
2/5 + 1/10 = 1/2.
Which set of ordered pairs represents the points on this graph?
A. {(-2, -3), (-1, 5), (1, 3), (2, 5), (3, -2)}
B. {(-3, -2), (-1, 4), (1, 3), (2, 5), (3, -2)}
C. {(-2, -3), (-1, 4), (3, 1), (2, 5), (-2, 3)}
D. {(-2, -3), (-1, 4), (1, 3), (2, 5), (3, -2)}
Answers
Answer: D
Step-by-step explanation:
remember look for the 'x' then you look for the 'y'
left and right first (x) then up and down (y)
(x,y)
Answer:
The answer is D!
Step-by-step explanation:
a bus has a maximum capacity of 70 passengers. There are 28 riders on the bus. What are all the possible numbers of riders, r, who canget on the bus if no riders get off
Answers
Answer: 42 passengers can still get on.
At the school festival,Heather can buy 25 game tickets for $10,or she can. Pay $ 0.50 Per game ticket. Which option has the lesser price per ticket
Answers
Answer:25 game tickets for $10
Step-by-step explanation:
0.50 * 25 = $12.5
so the second option is more expensive so the first one is correct.
Divid $10 by 25 and it breakdown to 0.40 cents
That is a better deal than 0.50 per game.
25 for $10 is the better deal
please help
have to be done with it today
Answers
Answer:V
Step-by-step explanation:
because
Please help! I need to show work
9 yards to meters
4 ounces to grams
12 fluid ounces to milliliters
3 miles to kilograms
24 pounds to kilograms
7 gallons to liters
Answers
Answer:
1. 8.2296 m
2. 113.398 g
3. 354.882 ml
4. 4.828032 km
5. 10.8862 kg
6. 26.4979 g
Step-by-step explanation: If you have a textbook there will be a way to change something into something. There is also one on the internet.
113.4 grams
354.888 milliliters
4.827 kilometers
10.896 kilograms
26.495 liters
Question 7(Multiple Choice Worth 2 points)
(Graphing Linear Equations MC)
A party planner organized a dinner party. The party planner recorded the height of the candlesticks over time and graphed the relationship.
graph with the x axis labeled time in hours and the y axis labeled height of candlestick in inches and a line going from the point 0 comma 9 through the point 3 comma 7
Find and interpret the slope and y-intercept in this real-world situation.
The slope is negative two thirds, and the y-intercept is 9. The candle starts at a height of 9 inches and decreases two thirds of an inch every hour.
The slope is negative three halves, and the y-intercept is 9. The candle starts at a height of 9 inches and decreases three halves of an inch every hour.
The slope is 9, and the y-intercept is negative two thirds. The candle starts at a height of two thirds of an inch and decreases 9 inches every hour.
The slope is 9, and the y-intercept is negative three halves. The candle starts at a height of three halves of an inch and decreases 9 inches every hour.
Answers
Answer:
c
Step-by-step explanation:
a florist was asked to make a flower arrangement that contains at most 36 roses. the florist has already used 17 roses in the arrangement.
Which inequality represents all the possible numbers of roses, r, that the florist can still add to the arrangement
A. r>19
B. r>53
C. <19
D. <53
Answers
Answer:
D. r < 53
Step-by-step explanation:
I'm really confused with all three of these questions.
Examples to help you out: Pb(NO3)2
(multiply the number after the parentheses. The elements values are 1. If the element (letter) has a number (O3) you'll multiply it and it's value will change. Ox3=3.
Pb=1
N=2
O=3
I need help with these problems
Answers
Answer:
Step-by-step explanation:
yes mutiply 3x3
What is the vertex of the graph of $y = 3x^2 - 6x + 7$?
Answers
Answer:
The vertex of the graph of the equation $y = 3x^2 - 6x + 7$ is the point $(1, 4)$.
Step-by-step explanation:
The vertex of the graph of a parabolic function $y = ax^2 + bx + c$ is given by the formula:
$x = \frac{-b}{2a}$
where a, b, and c are constants and x is the x-coordinate of the vertex.
For the given equation $y = 3x^2 - 6x + 7$, we have a = 3, b = -6, and c = 7. So, we can use the formula to find the x-coordinate of the vertex:
$x = \frac{-b}{2a} = \frac{-(-6)}{2(3)} = \frac{6}{6} = 1$
So, the x-coordinate of the vertex is 1. To find the y-coordinate, we substitute the value of x back into the original equation:
$y = 3(1)^2 - 6(1) + 7 = 3 - 6 + 7 = 4$
So, the vertex of the graph of the equation $y = 3x^2 - 6x + 7$ is the point $(1, 4)$.
Can someone help me with this?
Answers
Answer:
Step-by-step explanation:
Something to those numbers equals 90 degrees so I think plug in 36 divided by 90 and then you will get your answer I did this before but it has been a while if you get it wrong my apologies.
explanation:
you would use supplementary and linear pair relationships to solve
once you have 2 angle measures, you can find the third by subtracting it from 180 bc the sum of a triangle = 180 degrees
HELPPPP PLSSSS
Stop & Shop is having a sale on paper towels: 5 rolls for $3. How much will 1 roll(s) cost?
Answers
Answer:
Step-by-step explanation:
1 roll for $1
2 rolls for $1.5
3 rolls for $2
4 rolls for $2.5
5 rolls for $3
Answer: hope this helps ♡
1 roll(s) will cost $0.6.
Step-by-step explanation:
Unitary method: Diving the number that u want to find out over the number that's already known. (idunno if ur gonna understand this) :)
5 rolls = $3
1 roll = $?
⅗ = 0.6
1 roll = $0.6
(double check: 0.6×5=3)
please just help and show the work
Answers
1.[tex]184 cm^{3}[/tex] 2. [tex]187cm^{3}[/tex] 3.[tex]235 ft ^{3}[/tex]
In the first question firstly, We will find the volume of the hemisphere with a diameter of 8 cm.
We will find the volume of the hemisphere by using the formula that is,[tex]2\pi r ^{3}/3[/tex].
Which gives us, [tex]134.09 cm^{3}[/tex].
Now we will find the volume of the inverted cone with the formula,[tex]\pi r^{2}h/3[/tex].
Which gives [tex]50.28 cm^{3}[/tex].
Adding both give [tex]184.57 cm^{3}[/tex].
Rounding [tex]184 cm^{3}[/tex]
In the second question firstly, We will find the volume of the hemisphere with a radius of 3cm.
we will find the volume of the hemisphere by using the formula that is, [tex]2\pi r^{3} /3[/tex].
Which gives us, [tex]56.57 cm^{3}[/tex].
Now we will find the volume of the cylinder with the formula, [tex]\pi r^{2}h[/tex].
Which gives [tex]132 cm^{3}[/tex].
Adding both give [tex]188.57 cm^{3}[/tex].
Rounding [tex]187 cm^{3}[/tex].
In the last question, we will find the volume of the cone with a radius and height of 7ft.
We will find the volume of the cone by using the formula that is, [tex]\pi r^{2}h/3[/tex].
Which gives us, [tex]102.66ft^{3}[/tex].
Now we will find the volume of the cylinder with the formula, [tex]\pi r^{2}h[/tex].
Which gives [tex]132ft^{3}[/tex].
Adding both give [tex]234.66ft^{3}[/tex].
Rounding [tex]235ft^{3}[/tex] .
Read more about the volume of 3D shapes: https://brainly.com/question/12105152
help me please, thank youu!
Answers
Answer:
1. Cannot be side lengths
2. Can be side lengths
3. Can be side lengths
4. Cannot be side
Step-by-step explanation:
it can be side lengths when the largest side is equal to the sum of the two other
Need help
Please explain the steps and what I have to do and include answers
(For both)
Answers
each task is solved with 2 different methods.. since i dont know what your teacher expects from you
evaluate the expression xy - 4x when x = 2 and y = 7 .
please help im trying to finish my pretest questions .
Answers
the anwer is x=3
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
[tex]xy - 4x [/tex]
[tex](x \times y) - (4 \times x)[/tex]
You replace where x to 2 and where y is to 7
[tex](2 \times 7) - (4 \times 2)[/tex]
[tex]14 - 8 = 6[/tex]
HELPPP 20 B POINTS AND BRAINLIEST
Alicia needs to purchase carpet to cover a triangular space.
The space has a base length of 10 ft. and a height of 6.4 ft.
How many square feet of carpet does Alicia need to cover the space?
Answers
Answer:
[tex]\huge\boxed{\sf Area = 32 \ ft.^2}[/tex]
Step-by-step explanation:
Given that, the space is triangular.
So,
[tex]\displaystyle Area \ of \ triangle = \frac{1}{2} (Base)(Height)[/tex]
Here,
Base = b = 10 ft.
Height = h = 6.4 ft.
So,
[tex]\displaystyle Area = \frac{1}{2} (10)(6.4)\\\\Area = (5)(6.4)\\\\Area = 32 \ ft.^2\\\\So, she \ needs \ a \ carpet \ of \ 32 \ ft.^2\ to \ cover \ the \ area.\\\\\rule[225]{225}{2}[/tex]
…………………….
HOW CAN YOU USE THE DISTRIBUTIVE PROPERTY TO FACTOR THE EXPRESSION .. .. .
[tex]\frac{3}{4}x + \frac{9}{4}[/tex]
Answers
Answer:
4
Step-by-step explanation: