40% of 800.,.,.,.,.,.,,.,.,.,.,.
Help!! I have exam in 10 minutes
Answer:
LHS=(1-sin60)/cos60
=(1-√3÷2)/1÷2
=2(1-√3÷2)
=2-√3
RHS=(1-tan30)/(1+tan30)
={1-(1÷√3)}/{1+(1÷√3)}
={(√3-1)/√3}/{(√3+1)/√3}
=(√3-1)/(√3+1)
={(√3-1)(√3-1)}/{(√3+1)(√3-1)}
=(3-√3-√3+1)/(3-1)
=(4-2√3)/2
=2-√3
Brainliest?
peter weighs 8kg heavier than Ailen.If 5/7 of Peter weight is 35kg,what is their total weight?
5/7 = 35 kg
1/7 = 7 kg
Peter weighs 49 kg
49 - 8 = 41 kg
Ailen weighs 41 kg
49 + 41 = 90kg
Their total weight is 90 kg
Which equation represents an ellipse?
2x2 – 4xy + 2y2 + x – 3y + 5 = 0
2x2 – 6xy + y2 + 8x – y + 2 = 0
3x2 + 7xy + 8y2 + 3x – 9y + 5 = 0
9x2 + 3x + 9y2 – 2y + 5 = 0
Answer:
C: 3x^2 + 7xy + 8y^2 + 3x – 9y + 5 = 0
The equation that represents an ellipse; 3x^2 + 7xy + 8y^2 + 3x – 9y + 5 = 0. so option C is correct.
What is the equation of ellipse if its major and minor axis and center are given?Suppose that the major axis is of the length 2a units, and that minor axis is of 2b units, and let the ellipse is centered on (h,k) with major ellipse parallel to x-axis,
then the equation of that ellipse would be:
[tex]\dfrac{(x-h)^2}{a^2} + \dfrac{(y-k)^2}{b^2} =1[/tex]
Coordinates of its foci would be: (h \pm c, k) where c^2 = a^2 - b^2
If its major axis is parallel to y-axis.
The equation that represents an ellipse;
3x^2 + 7xy + 8y^2 + 3x – 9y + 5 = 0
Learn more about ellipse here:
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-2 1/3 - (-5)=
A 3 1/3
B 3 2/3
C 2 2/3
D -7 1/3
Answer:
2 and 2/3 is the correct answer
-5(x-7)<15 solve for x
Answer: X>4
Step-by-step explanation: use distributive property. -5 times X times -7. Subtract -35 from both sides. +35-35 cancels out. Subtract 35 from 15. Divide -5 from both sides. Edit: omg I just realized I didn’t change the sign!
-5x+35<15
-35<15-35
-5x<15-35
-5x<-20
x>4
Solve the system by substitution.
y =
-4x
y = x - 5
Answer:
x=-1
Step-by-step explanation:
thanks I'm done pls
Answer: 1,-4
Step-by-step explanation: I noticed there are no steps for this one so I will go ahead and put them.
-4x+x=x-5+-x
combine:
-5x/5=-5/-5
x=1
Substitute:
y=-4x(1)
y=-4
so we get 1,-4
the image is the problem:
ty :P
Quadrilateral A'B'C'D'is a rotation of quadrilateral ABCD 180° about the origin.
What is the length of A'B'?
A. 6 units
B. 7 units
C. 3 units
D. 4 units
Answer:
Answer- B, 7 units
Step-by-step explanation:
I took the quiz
A.P.E.X
The length of side A'B' is 7 units, so the correct option is B.
What is the length of A'B'?We know that the side length is invariant under rotations, that means that the equivalent sides of the preimage and the image have equal length, then:
AB = A'B'.
We can see that AB= 7, then we can conclude that the correct option is B.
A'B' = 7 units.
Learn more about rotations at:
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PLz help I will give brainliest!!!!! and extra points
Hey there!
The answer to your question is [tex]95.55[/tex]
Formulas:
Area of semi-circle = [tex]\frac{1}{2}(\pi r^2)[/tex]
Area of rectangle = [tex]lw[/tex]
Area of triangle = [tex]\frac{bh}{2}[/tex]
Now solve:
semi-circle
[tex]\frac{1}{2}\pi3^2[/tex]
[tex]\frac{1}{2}\pi9[/tex]
[tex]4.5\pi[/tex]
(We will use 3.14 as approx. for pi)
[tex]4.5 * 3.14\\23.55[/tex]
rectangle
[tex]10(6)\\60[/tex]
triangle
[tex]\frac{4(6)}{2}[/tex]
[tex]\frac{24}{2} \\12[/tex]
Now add them all together:
[tex]23.55+60+12\\95.55[/tex]
Have a terrificly amazing day!
What is the value of 2/3 x - 3.5 when x = 30?
Answer:
16.5
Step-by-step explanation:
2/3x - 3.5 = 2/3 * 30 - 3.5 = 20 - 3.5 = 16.5
We have 6 face red cards (JQK x 2) and 16 black cards, so a total of 22 cards.The red face cards and the black cards numbered 2-9 are put into a bag. Four cardsare drawn at random without replacement. Find the following probabilities:
a) All 4 cards are red
b) 2 cards are red and two cards are black
c) At least one of the red cards is red.
d) All four cards are black
Answer:
I dont know
Step-by-step explanation:
only doing it for points
Bryce and two of his friends went to eat at Texas Roadhouse. They split the bill evenly between them. Bryce share was $14.85. Write and solve an equation to find the total,t, of the bill .( please help asap and show all your work please)
As there are three people in total, the number of total shares is 3.
Let 1 share = x = $14.85
t = 3x
t = 3 (14.85)
= $44.55
Hope this helps!
can you help me please
Answer:
0.07
Step-by-step explanation:
its gonna be sin 7/10 which is approx. 0.06569 rounded to the nearest tenth is 0.07
Answer:
So judging by the fact that this is a right triangle clearly we know that we have 90 degrees. X is less than this and doesn't seem equal to the top angle area which looks to be 50 or so degrees I believe side x is 30 or 35 degrees. Sorry if I'm wrong! -Your friend, Bill Cipher
Step-by-step explanation: Have a great V-day <3
If a cube has a volume of 1 cubic unit, how long is one of its edges?
Answer:
the formula of a cube is V+s3
Step-by-step explanation:
I bought 500 pieces of candy. If 42% of the candy was eaten. How many pieces
were ate?
Answer: 210
Step-by-step explanation:
42% is equal to the fraction 42/100.
We can multiply 42/100 by 500 to find how much candy was eaten.
42/100 x 500 = 210.
Therefore, 210 pieces of candy were eaten. Hope this helps and good luck!
Answer:
210
Step-by-step explanation:
500 - 42%= 290
500 - 290 = 210
210 = Answer
Can someone answer this for me
Answer:
angle a= 55
angle b= 125
Step-by-step explanation:
I kinda forgot ...lm.a0 help someone it’s not complicated
Answer:
u r right
Step-by-step explanation:
Answer:
x = 9
Step-by-step explanation:
2x + (2x + 12) + 112 = 180
4x + 124 = 180
4x = 36
x = 9
edit: ignore this answer I got it wrong sorry
Find the expression that represents the sum of 2i3+5i2-6i and 2i2-3i+8.
Dry-by-step explanation:
Kznyuszc kubysadnuailsdaieubvaeryulbvaulybeffn
Ioaer
Finding which number supports the idea that the rational numbers are dense in the real numbers?
Answer:
an integer between –11 and –10
a whole number between 1 and 2
a terminating decimal between –3.14 and –3.15
Step-by-step explanation:
If you highlight bob he is a skeleton
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Answer:
Nice picture of Bob (tho i dont know who he is)
Step-by-step explanation:
AMazing
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Bob is great
D Find two solutions to the equation 5 y = 8 Complete the statements below.
Step-by-step explanation:
(1,5/8), (2,5/4) those are the two solutions
Verizon charges $200 to start up a cell phone plan. Then there is a $50 charge each month. I there a proportional relationship between time and the cost of the cell phone plan ? Explain how you know
Answer:
200 x 50 = 10,000 + 365 = 10,365
Step-by-step explanation:
Just 200 times 50 then there is 365 days in 1 year so that would all add up to 10,365
Sorry if It didnt help , Ik this is prolly a dum ahh response , But there ya go !!
Brett needed to repair a window that sat 12 feet
high on a house. He has a 15 foot ladder. How far away
must he set the ladder from the base of the house for it
to reach the window exactly?
3 ft
65 ft
© 9 ft D 6 ft
You are offered a job that pays a different amount each day. The
first day, you are paid l¢. The second day you are paid 2¢. The
third day you are paid 4¢. Each day, your pay continues to
double. Write an equation that would describe the amount, in
cents, you would be paid on a particular day.
Answer:
Salary by day = .01 * 2^(n-1)
where n = # of days so
day 1 = .01 * 2^(1 -1) = .01 * 2^0 = .01
day 2 = .01 * 2^(2 -1) = .01 * 2^1 = .02
day 3 = .01 * 2^(3 -1) = .01 * 2^2 = .04
day 4 = .01 * 2^(4 -1) = .01 * 2^4 = .08
Step-by-step explanation:
I need help with this question
Answer:
it's 324
Step-by-step explanation:
divide 72 by 4 to get one side, then multiply the side by itself, 18 times 18
What is the circumference of the following circle?
diameter=9cm
Answer:
The circumference of the following circle is 9π (around 28.274)
Step-by-step explanation:
The circumference can be found by using the following formula, where d is the diameter of the circle...
dπ = 9π ≈ 28.274
PLEASE HELP THIS IS DUE TODAY!!
Answer:
254 in
Step-by-step explanation:
1 yard = 36 in
7 yards = 36 (7)
7 yards = 252
add 2
254 in
:)
Answer: 254 inches
Step-by-step explanation:
1 yard= 36 inches x 7 (yards) + 2 inches= 254 inches
Question:
Use to distributive property to simplify: 4(2m+g)
what is it?
Answer:
8m+4g
Step-by-step explanation:
Answer:
8m+4g is the correct answer
Step-by-step explanation:
The answer above is correct, but to get some points. There you go have a nice day
can someone help me please
9514 1404 393
Answer:
25.12 feet
Step-by-step explanation:
The circumference of a circle is given by ...
C = πd . . . . where d is the diameter
The circumference of the table is ...
C = (3.14)(8 ft) = 25.12 ft
Thomas needs to buy 25.12 feet of metal strip to edge his table.
Is this answer correct (see attachment)
Answer:
yes
Step-by-step explanation:
yeyess
nice
very nice
i like
yes
.