NEED THIS SOLVED ASAP PLS HELP ME!!!
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]
I’m once again asking for your Mathematical support!
Answer:
Step-by-step explanation:
let x= hamburger
let y= hot dogs
Jalen: 5x+3y=28.50
Victoria: 2x+6y=21
is second choice
Please help me with geometry :(
Answer:
I think it's C is true but make sure
Help!
JH is a mid-segment of KLM. Find the value of x.
JH = mid-segment of triangle KLM.
ML = 22
(1/2)(ML) = 11
JH = (1/2)(ML) = x
So, x = 11.
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?
help pls pls pls pls pls pls pls pls
Answer:
b=60 c=70 a=50 d=70 e=60 f=50
Step-by-step explanation:
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?
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
The square pyramid below represents a tent that Wayne is making.
The sides of the tent will be covered in blue fabric, and the base of the tent will be covered in brown fabric.
Find the surface area that will be covered in each color of fabric.
Enter your answers in the boxes.
Answer:
79
Step-by-step explanation:
The answer is 27 m² and 9 m² of blue and brown fabric will be used respectively.
What is a square pyramid structureA square pyramid is a three-dimensional shape that has a total of four triangular faces.
A most famous example of such a pyramid in real life is the Great Pyramid of Giza.
The sides are triangular faces are 3 m and 4.5m
Height of the prism is 4.5m and the side of the square base is 3m
The surface area for triangular face is (1/2) * base * height
= (1/2) * 3 * 4.5
= 6.75 m²
For four faces the surface area of the blue fabric required is side * side
= 4 * 6.75
= 27 m²
For the base , brown fabric is being used and the surface area of the base is
= 3 * 3
= 9 m²
Therefore 27 m² and 9 m² of blue and brown fabric will be used respectively.
To know more about square pyramid structure
https://brainly.com/question/10676249
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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?
Find the distance between the points −9, 7 and −9, −5. A) 12 B) 14 C) 16 Eliminate D) 18
Answer:
its 14
Step-by-step explanation:
Look at the ratio table below. Fill in the missing information.
3
12
4.
12
20
Answer:
its suppose to be 3, 6, 9, 12, 15
and 4, 8, 12, 16, 20
I NEEED TO DO THIS ASSIGHMEN T HELP PLS
angle B=90
now
A+B+C=180
90+A+C=180
A+C=90
What is the slope between the points (1,5) and (3, 15)
Someone plz help me!!! I will give brainliest
Answer:
Step-by-step explanation:
the 2nd one
that's easy, the last choice
a=1/2b*h
In QRS, the measure of S=90, the measure of Q=64, and RS=16
Answer:17.8 feet
Step-by-step explanation:
please help me with this problem
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
What is the value of the expression?
Answer:
6s2
= 6(2)2
= 12 × 12
= 144
: The value of the expression is equal to 144
5x + 5(x - 18) = 0 what is x
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
Write 3-5 sentences about the process of the Sums and differences of cubes Factoring Method
Answer:
nah nah mane 12
Step-by-step explanation:
Answer:
Step one: Decide if the two terms have anything in common, called the greatest common factor or GCF. If so, factor out the GCF. Do not forget to include the GCF as part of your final answer. In this case, the two terms only have a 1 in common which is of no help.
Step 2: Rewrite the original problem as a difference of two perfect cubes.
Step 3a: “Write What You See” If you disregard the parenthesis and the cubes in step 2, you should see:
Step 3b: “Square-Multiply-Square” If you square the first term, x, you get x2. If you multiply the two terms, x and 4, you get 4x. Finally, if you square the second term, 4, you get 16.
Step 3c: “Same, Different. End on a Positive” This will determine the signs of the problem. The first sign should be the same as the original question, the next sign should be different then the first, and the last sign should always be positive.
Step 4: Write the final answer.
Step-by-step explanation:
someone pls help i’m failing this class
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.
Can anyone help me with where to put the arrows ?
Can u answer my question please?
200(1-0.80)^2
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
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?
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
Find the distance between the pair of points.
(2, 2) and (6,5)
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
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%
Please help quarter ends tomorrow and I don’t know what to do I’m failing all my classes
Answer:
The answer is: x-y-10=0
Pls help me with it!!!!!!
Answer:
I dont really know but I can tell you for sure its one of the first 2
Step-by-step explanation:
Solve for x.
-2x-3=-7
-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
Answer:
The answer is 28y + 63
Step-by-step explanation:
7(4y+9)
=28y+63
What is the area of this figure
Answer:
64
Step-by-step explanation:
Answer:
on the red ? is 32 and on the blue ?is16