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Related Questions
NEED THIS SOLVED ASAP PLS HELP ME!!!
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Answer:
x= 1 ±√21/3
x= 2.52753
x= - 0.527525
Step-by-step explanation:
-(-6) ±√-6² - 4 (3) (-4) / 2(3)
6±√36 -(-48) / 6
6±√84/6
6±2√21/6
6/6 ±2√21/6
1±√21/3
1+ √21/3 = 2.52753
1-√21/3= - 0.527525
Step-by-step explanation:
[tex]3x ^{2} - 6x - 4 = 0[/tex]
[tex]by \: quadratic \: formula[/tex]
[tex](-b±√(b²-4ac))/(2a) [/tex]
[tex] - ( - 6)±√( - 6²-4(3)( - 4) /(2 \times 3) [/tex]
[tex](6±√(36 + 48)/(6) [/tex]
[tex](6±√(84)/(6) [/tex]
[tex](6±2√21)/6[/tex]
[tex]2(3±√21)/6 [/tex]
[tex]3±√21/3[/tex]
[tex]let \: \alpha \: and \: \beta \: be \: two \: roots \: .[/tex]
[tex]3 + \sqrt{21} /3[/tex]
[tex]3 + 4.58/3[/tex]
[tex]7.48/3[/tex]
[tex]2.52[/tex]
[tex]and \: second \: root \: = 3 - \sqrt{21} /3[/tex]
[tex]3 - 4.58/3[/tex]
[tex] - 1.58/3[/tex]
[tex] - 0.52[/tex]
[tex]so \ \: alpha = 2.52 \: and \: \beta = - 0.52[/tex]
help pls pls pls pls pls pls pls pls
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Answer:
b=60 c=70 a=50 d=70 e=60 f=50
Step-by-step explanation:
Please help quarter ends tomorrow and I don’t know what to do I’m failing all my classes
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Answer:
The answer is: x-y-10=0
Una garrafa de aceite equivale a 5 botellas y 3 garrafas es igual a 7, las cuales suman 11 litros, ¿Cuál es las capacidad de una botella y una garrafa?
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Respuesta:
Botella, B = 0.5
Jarra, C = 2,5
Explicación paso a paso:
Dejar :
Garrafa = C
Botella = B
C = 5B - - - - 1)
3 garrafas más 7 botellas = 11 litros
3C + 7B = 11
C = 5B
3 (5B) + 7B = 11
15B + 7B = 11
22B = 11
B = 11/22
B = 1/2 = 0,5
Sustituyendo B = 0.5 en 1)
C = 5B
C = 5 (0,5)
C = 2,5
5x + 5(x - 18) = 0 what is x
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Hope this helps!
Answer:
x = 9
Step-by-step explanation:
5x + 5x - 90 = 0
5x + 5x = 90 + 0
5x + 5x = 90
10x = 90
x = 9
Hope that helps!
-Sabrina
N a typical 2-pound bag of M&Ms contains 500 individual pieces, of which... 120 are blue, 70 are brown, 80 are green, 100 are orange, 60 are red, and 70 are yellow. If I randomly select one M&M candy from the bag, what is the probability that candy will be red?
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Answer:
0.12
Step-by-step explanation:
Number of red candies = 60
Total number of candies = 500
Recall :
Probability of event A = number of occurrences of A / total number of occurences
= required outcome / Total possible outcomes
The probability of randomly selecting a red candy is :
= number of red candies / total number of candies
= 60 / 500
= 0.12
What is the value of the expression?
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Answer:
6s2
= 6(2)2
= 12 × 12
= 144
: The value of the expression is equal to 144
What is the area of this figure
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Answer:
64
Step-by-step explanation:
Answer:
on the red ? is 32 and on the blue ?is16
Find the distance between the points −9, 7 and −9, −5. A) 12 B) 14 C) 16 Eliminate D) 18
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Answer:
its 14
Step-by-step explanation:
Help!
JH is a mid-segment of KLM. Find the value of x.
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JH = mid-segment of triangle KLM.
ML = 22
(1/2)(ML) = 11
JH = (1/2)(ML) = x
So, x = 11.
Tamika makes $ 378.00 on the sale of a home theater system that costs $9.000.00. Express her rate of commission as a percent rounded to the nearest whole number
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Answer:
4%
Step-by-step explanation:
commission rate = (amount earned on sales / total cost of items sold) x 100
[tex]\frac{378}{9000}[/tex] × 100 = 4.2%
To convert to the nearest whole number, look at the first number after the decimal,
if it is equal to or greater than 5, add 1 to the number before the decimalif it is less than five, add 0 to the number before the decimaltwo is less than 5, thus we would add zero to 4.
4.2% becomes 4%
Find the distance between the pair of points.
(2, 2) and (6,5)
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please help me with this problem
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Answer
Equation Simplified = 35 +0.05 x 35 = 36.75
Step by step
5% = 0.05
35 in this equation represents the principle
0.05 represents the rate
35 + 0.05 x 35 = 36.75
Simplified Equation: 35 +0.05 x 35
Price After Markup = 36.75
Round 188,206 to the nearest thousand
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Answer:
188,000
Step-by-step explanation:
Please help me with geometry :(
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Answer:
I think it's C is true but make sure
1. 15
2. 60
3. 30
someone pls help i’m failing this class
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Answer:
Step-by-step explanation:
so if the cubic length is now shorter you have to make the object bigger. So now the rectangle would have a length of 6 squares and a height of 10 squares
Answer:
3 by 3
Step-by-step explanation:
make it go 3 squares to the right and 3 squares upwards for a total or 9 squares.
Pls help me with it!!!!!!
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Answer:
I dont really know but I can tell you for sure its one of the first 2
Step-by-step explanation:
Please help I was on this for a while
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Answer:
Radius R = 9 ft
Step-by-step explanation:
Given:
Volume of sphere = 972π ft³
Find:
Radius R
Computation:
Volume of sphere = (4/3)πr³
972π = (4/3)πr³
729 = r³
Radius R = 9 ft
In QRS, the measure of S=90, the measure of Q=64, and RS=16
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Answer:17.8 feet
Step-by-step explanation:
A store pays $42.00 for a pair of shoes and marks the price up by 50%. What is the selling price? A $63.00 b $76.00 c $84.00 d $37.00
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Answer:
63.00
Step-by-step explanation:
Increasing a price by 50% is like adding half of the original price to get an updated price. 42 times 50% or divided by 2 (Since it produces the same result) is 21 and 21 plus 42 is 63. 63 dollars is the correct answer which means the correct option is option A.
Answer: 84
Step-by-step explanation: do 42 dived by 50% gets you 84
Can u answer my question please?
200(1-0.80)^2
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Answer:
the answer is 8 hope it helped <3
Step-by-step explanation:
Answer: 8,
I apologize if I'm wrong. Good luck!
Step-by-step explanation:
First, you need to do parenthesis, 1-0.80=0.2
Then, you do exponents, 0.2^2=0.04
Last, you do 200x0.04=8
Look at the ratio table below. Fill in the missing information.
3
12
4.
12
20
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Answer:
its suppose to be 3, 6, 9, 12, 15
and 4, 8, 12, 16, 20
8. Duane packed some books in a box shaped like a rectangular prism. The volume of
the box is 168 cubic inches. Which model could represent Duane's box?
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What is the slope between the points (1,5) and (3, 15)
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Steps:
3 - 1 = 2 run
15 - 5 = 10 rise
Fran bought 4 shirts that were each $13 each. She also bought a pair of socks for 4.29. What was the total amount Fran pair for the shirts and socks?
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I NEEED TO DO THIS ASSIGHMEN T HELP PLS
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angle B=90
now
A+B+C=180
90+A+C=180
A+C=90
How do you graph this (real answers only)
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Answer:
Yes in a mathematical way I was correct with the answer I first displayed here but my answers weren't to your satisfaction so If I may....
Step-by-step explanation:
heres a graph
Solve for x.
-2x-3=-7
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-2x-3=-7
add 3 to both sides
-2x=-4
isolate x by diving both sides by -2
Answer: x=2
Hope that helps!
Please mark brainliest
Answer:
x = 2
Step-by-step explanation:
The whole goal when solving problems like this is to get the x alone. So the first step would be to get the -3 over to the other side. To do this, you would add 3 to each side of the equation, so that the -3 on the left side cancels out.
-2x - 3 = -7
+3 +3
-2x = -4
The next thing you need to do is divide each side by -2. You would do this because right now, the equation reads "negative two times x equals negative four". When you divide a multiplication problem, it cancels out, so you are left with just the x.
-2x = -4
÷ -2 ÷ -2
x = 2
You now have the value of x.
Please let me know if you need any more help. I hope this explanation helps you understand a bit better. Have a great day! :)
hi please help i’ll give brainliest
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Answer:
The answer is 28y + 63
Step-by-step explanation:
7(4y+9)
=28y+63
Someone plz help me!!! I will give brainliest
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Answer:
Step-by-step explanation:
the 2nd one
that's easy, the last choice
a=1/2b*h