In triangle ABC, AB= 10cm, AC=9cm and angle B=60 degrees. Let BC=x cm. Use cosine rule to show that x is a solution of x^2-10x+19=0
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Answer:
Step-by-step explanation:
Related Questions
Evaluate y(5- (6-z) )
if y= 4 z= -6
Answers
Answer: -27
Step-by-step explanation:
4(5-(6-(-6))
4( 5-12) = 4(-7) = -28
The lengths of adjacent sides of a rectangle are 572 units and 8,2
units. The perimeter is 5/2+8/2 +5,2 +8/2.
What is the simplified perimeter, in units, of the rectangle?
Answers
Answer:
13 units
Step-by-step explanation:
Giveb that :
Perimeter = 5/2 + 8/2 + 5/2 + 8/2
Hence, sum of the perimeter will be ;
The L. C. M of the denominator = 2
(5 + 8 + 5 + 8) / 2
= 26 / 2
= 13 units
Hence, the perimeter of the rectangle is 13 units
Anyone know this?need help ASAP
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Answer:
45
Step-by-step explanation:
I used Toa to figure it out. First I did Tan(32) times 13 and got 45.
Estimate the volume
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Answer:
Step-by-step explanation:
Well depends the shape
volume of a rectangular solid : V = length * width * height, or V = lwh.
volume of a triangular pyramid: V=13Ah
Volume of a cone: V=πr^2 h /3
etc..
Which ordered pair is in the solution set of y≥13x+4 ?
(-6,1)
(-1,6)
(6,-1)
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Answer:
first one
Step-by-step explanation:
2x+4y=8 find the slope
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4y = -2x + 8
Divide by 4
Y = -1/2x + 8
The slope is -1/2
What is the length of x in the diagram below?
A triangle with vertical bisector forms 2 triangles with a right angle. One triangle has a side length of 5 and another angle with a measure 45 degrees. Another triangle has a hypotenuse with length x and another angle with measure 30 degrees.
StartFraction 5 Over StartRoot 3 EndRoot
StartFraction 10 Over StartRoot 3 EndRoot EndFraction
5 StartRoot 3 EndRoot
10
Answers
Answer:
That is a 45-45-90 triangle next to a 30-60-90 triangle.
So, the height of the left triangle equals 5.
That makes the short side of the 30-60-90 triangle also equal to 5.
In a 30-60-90 triangle, the hypotenuse (or "x") is exactly twice the length of the shortest side.
Therefore, the hypotenuse (or "x") equals 10.
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
edge 2020
Viral Marketing
An organization is trying to decide between three sets of assumptions for their viral
marketing campaign:
• Send the message to 20 people, and assume that each person will take 1 day to share
the message with 3 other, new people (and each of them will share with 3 new
people, and so on).
• Send the message to 5 people, and assume that each person will take 1 day to share
the message with 6 other, new people and each of them will share with 6 new
people, and so on),
• Broadcast the message by paying for a television commercial that reaches 100,000
people, but can't be shared easily.
For which scenario would the most people see the message by the 6th day that the
organization sent it?
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Answer:
...
Step-by-step explanation:
Choose the correct solution for this equation X/2-12 = 24
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Answer:
[tex]x=72[/tex]
Step-by-step explanation:
[tex]\frac{x}{2} -12=24[/tex]
[tex]x-24=48[/tex] (multiply [tex]2[/tex] on both sides)
[tex]x=72[/tex]
Hope this helps :)
Hakim Ellison wants to buy a 4 door sport utility vehicle 4 wheel drive hybrid. There is an 8% sales tax on the purchase price of the SUV in his state. If he pays the full sticker price for the SUV, how much is the total?
Answers
Answer: $60401.16
Step-by-step explanation:
From the attached image, the total price for the vehicle = $55,927.
If he were to pay the full sticker price for the SUV, the total would sum up to
= $55,927 + 8% sales tax
= $55,927 + 8/100( $55,927)
= $55,927 + 0.08($55,927)
= $55,927 + $4474.16
= $60401.16
The total would sum up to $60401.16
the smallest number that divides by 8 10 and 12( please answer fast i have exams in 1 hr
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Answer:
120
Step-by-step explanation:
For a craft project, Jackie spent 45 minutes beading, 10 minutes painting, and 25
minutes sewing.
How much time did she spend working on her project?
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Answer:
1 hour and 20 minutes
Step-by-step explanation:
45+25+10=80 minutes which equal 1 hour and 20 minutes
There were 43 cars in the race. They all finished the 265 miles of the race and they each used about 1 gallon of gas to go 5 miles. About how many gallons og gas did the cars use altogether to finish the race?
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Answer:
2,279 gallons of gas.
Step-by-step explanation:
Given;
total number of cars in the race, t = 43 cars
total distance traveled by each car, d = 265 miles
5 miles ---------------- 1 gallon of gas
265 miles ------------ x gallon of gas
x = 265 / 5
x = 53 gallons
Total gallons of gas used by the 43 cars in the race is given as;
Total gallons of gas = 53 gallons x 43 cars
Total gallons of gas = 2,279 gallons of gas.
Therefore, the toal gallons of gas the cars used altogether to finish the race is 2,279 gallons.
Calculate the area
a.25.12 cm2
b.12.56 cm2
c.50.24 cm2
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Answer:
a. 25.12 cm^2
Step-by-step explanation:
Area = π * r^2
a = π * 4^2
a = π * 8
a = 25.12
4x+3−2x=15
what is x?
Answers
Answer:
2
Step-by-step explanation:
4x+3-2x = 15
6x = 15-3
6x = 12
x = 12/6
X = 2
hope it helpful ✌️✌️
fond the measure of x for this triangle
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Answer:
180° - (90° + 30°) = 180° - 120° = 60°
Step-by-step explanation:
there are 180° inside of a triangle
the square means that the angle is 90°
how many times does 50 go into 102?
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Answer: 2 times with a remainder of 2. Remainder basically means whats left over and in this case, it's 2
Step-by-step explanation: 2 times 50= 100
m−2 over 4 =5 over 20
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Plug it in and it should work
3-2 =1 over 4 which is the same as 5 over 20 because both as a percentage equal 25% or 1/4 or 0.25 if you put it in a calculator as calculators provide decimal answers
A car is traveling at a steady speed. It travels 2 1/2 miles in 3 1/3 minutes. How far will it travel in 45 minutes ?
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Answer: The car will travel 30 2/3 miles in 45 minutes.
Answer:
Please Mark as Brainliest!!
Step-by-step explanation:
The car will travel 30 2/3 miles in 45 minutes.
The car will travel 40 miles in 1 hour
Need help
Hurry!!!!!!!!
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Answer:
sorry
Step-by-step explanation:
Answer: thats soo ez just do it
Step-by-step explanation:
what is 1 times 3 divided by 3 + 25 minus 3 times 100 minus 93 + 4
Answers
Answer:
2211
Step-by-step explanation:
1*3 = 3
3/3 = 1
1+25 = 26
26-3 = 23
23*100 = 2300
2300-93 = 2207
2207+4 = 2211
I could use some help on this one! Thanks!
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the answer is the last one
Answer:
A.) 458 R2
4 5 8
9 | 4 1 2 4
3 6
5 2
4 5
7 4
7 2
2
458 with a remainder of 2
Time (econds)
8. The table shows a person's annual
salary y (in thousands of dollars) after x
years of education beyond high school.
What is the annual salary,
Years of
of the person after Education Salas
8 years of education
beyond high school?
Annual
Answers
Answer:
76 the pattern goes in 12s every two years
Step-by-step explanation:
64 plus 12 is 76
A miniature portrait of Frosty the Snowman is square and has an area of 100 square
centimeters. How long is each side of the portrait?
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Answer:
25 centimeters
Step-by-step explanation:
Well a square has 4 sides, and 100 divided by 4 is 25.
What are the angle measurements in the triangle?
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Answer:
c
Step-by-step explanation:
CAN ANYBODY HELP ME WITH THIS JUST WITH 7 TO 12 PLEASE IT IS FOR AN GRADE!!
Answers
Answer: I think there is a mistake for the first one because I did the math and I got 200 added but then there are more answers to this one, I added all the others by 200 and got the next number but then when I got to 6,300 I can't get the 6,700. I get something else, I add 6,000 with 200, and then I get 6,200 instead of getting 6,300. Then I added that 6,200 and 200 and got 6,400. I am confused with the second one, can you please help me understand that one. The third one is also confusing, The one is 12 nuggets eaten per minute. The fifth I am not sure if that is a solvable question, The sixth one I am not sure but I think that it is 0.066667. The seventh one doesn't even make any sense to me.
Explanation: I am sorry this was so long, I was trying to make sense of these questions. Also if this is ALL wrong sorry for even trying.
Anybody know the answer to this?
Answers
12g = 8g - 12 + 11
12g = 8g - 1
4g = -1
Divide by 4
g = -1/4
Zoey is going to invest in an account paying an interest rate of 3.4% compounded
quarterly. How much would Zoey need to invest, to the nearest ten dollars, for the
value of the account to reach $81,000 in 8 years??
Answers
Answer:
61780
Step-by-step explanation:
need help btw i am in middle school
Answers
Answer:2
Step-by-step explanation:HEY PLS DON'T JOIN THE ZOOM CALL OF A PERSON WHO'S ID IS 825 338 1513 (I'M NOT SAYING THE PASSWORD) HE IS A CHILD PREDATOR AND A PERV. HE HAS LOTS OF ACCOUNTS ON BRAINLY BUT HIS ZOOM NAME IS MYSTERIOUS MEN. HE ASKS FOR GIRLS TO SHOW THEIR BODIES AND -------- PLEASE REPORT HIM IF YOU SEE A QUESTION LIKE THAT. WE NEED TO TAKE HIM DOWN!!! PLS COPY AND PASTE THIS TO OTHER COMMENT SECTIONS!! YOU CAN ALSO PUT IT AS A QUESTION< THIS IS NOT A JOKE THIS IS SOMETHING VERY SEROUIS AND DANGEROUS AND SHOULD BE TAKEN VERY SEROUISLY
15PTS PLEASE HELP ASAP!
(dont write random answers pls)
look at the pic attached:
Answers
Answer:
b) 1000m
Step-by-step explanation:
the law of sines.
you know all the angles and the length of the side a