Answer:
y=2/3 x=-5/3
Step-by-step explanation:
one of the roots of the equation 27x^2 + bx + 8 =0 is known to be the square of the other. Find b
Answer: Your going to have to correct your placing of your numbers.
-12 is value of b for equation 27x²+bx+8=0
What is quadratic equation?A quadratic equation is a second-order polynomial equation in a single variable x , ax²+bx+c=0. with a ≠ 0 .
Given,
One of the roots of the equation 27x² + bx + 8 =0 is known to be the square of the other.
We need to find the value of b.
Let one root is a and the other root is a².
(x-a)(x-a²)=0
x²-xa²-ax+a³=0
x²-x(a²+a)+a³=0
Now multiply by 2
x²-2x(a²+a)+2a³=0
x² + bx + 16=0
2a³=16
Divide both sides by 2
a³=8
a=2
27x²-2x(a²+a)+2a³=0
27x²-2x(4+2)+16=0
27x²-2x(6)+16=0
27x²-12x+16=0
b=-12
Hence, -12 is value of b for equation 27x²+bx+8=0
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Help ASAP please. I’ll give you brainliest
Answer:
x= -83.4
830÷50= 16.6
17 coaches would be needed
£5,850
Answer:
x=1660
the value of 830÷50 is 16.6
it will take 5850 to hire 13 coaches
Lots of points please help
Answer:
hi
Step-by-step explanation:
I need help on this too
Answer:
first one
Step-by-step explanation:
do i really need an explanation like come on
Can someone please help me
In the triangle below, with right angle ZE, suppose that m ZD= (3x+38) and mZF=(4x+3)°.
Find the degree measure of each angle in the triangle.
HURRY PLSSS
Answer:
[tex]for \: a \: right \: angled \: triangle \\ (3x + 38) + (4x + 3) + 90 = 180 \\ (4 + 3)x = 180 - (90 + 38 + 3) \\ 7x = 49 \\ x = 7 \\ \\ mZD=(3x + 38) \\ = (3 \times 7) + 38\\ mZD = 59° \\ \\ mZF=(4x+3)° \\ = (4 \times 7) + 3 \\ mZF = 31°[/tex]
Which of the following polynomials have degree 5?
Answer:
lll
Step-by-step explanation:
*dab
it feels good to know the answer
Select the expression that is equivalent to 18 : 12 A) 6 (8+6) B 12 (4+1) C 4 (443) D 8(6+4)
Answer:
Step-by-step explanation:
D 8(6+4)
X= What does ×= 88, 89 or 90
What is the total amounted sap the tees produced that day
Answer:
5 gallons
Step-by-step explanation:
i have done this lesson before
What should be done to sove the equation?
X-17=11
Add 17 to both sides.
Add17 to the left side and subtract 11 from the right side.
Add 17 to the left side and subtract 17 from the right side.
Add 11 to both sides.
Express the following numbers as a ratio between an integer and a natural number:
1 and 2/5, 0.3, -3 and 1/4, -27, 0
9514 1404 393
Answer:
7/53/10-13/4-27/10/1Step-by-step explanation:
The mixed numbers can be expressed as improper fractions in the usual way. The integer portion can be expressed as a multiple of the fraction denominator divided by itself.
Integers can be expressed as a ratio with 1 as the denominator.
1 2/5 = (1×5/5) +2/5 = (5+2)/5 = 7/5
0.3 = three tenths = 3/10
-3 1/4 = -(3×4/4 +1/4) = -(12+1)/4 = -13/4
-27 = -27/1
0 = 0/1
So right how to do this so help me it hurts
Answer:
The answer is y=6x+2
Step-by-step explanation:
10 POINTS
Please help directions are at the top of the picture, please leave just a lil explanation also I’ll mark brainliest. :)
Answer:
C, F, D
Step-by-step explanation:
For each side of each triangle, think of the side as the hypotenuse of a right triangle. Then use the Pythagorean theorem to find the length of the hypotenuse, which is the side of the triangle.
Left problem:
From point C to point A, go 2 left and 7 up.
[tex] AC = \sqrt{2^2 + 7^2} = 7.3 [/tex]
From point A to point B, go 5 right and 1 down.
[tex] AB = \sqrt{5^2 + 1^2} = 5.1 [/tex]
From point B to point C, go 6 down and 3 left.
[tex] BC = \sqrt{6^2 + 3^2} = 6.7 [/tex]
Perimeter = 7.3 + 5.1 + 6.7 = 19.1
Do the same for the other triangles.
Middle problem:
From point F to point D, go 2 left and 7 up.
[tex] FD = \sqrt{2^2 + 7^2} = 7.3 [/tex]
From point D to point E, go 7 right and 2 down.
[tex] DE = \sqrt{7^2 + 2^2} = 7.3 [/tex]
From point E to point F, go 5 down and 5 left.
[tex] EF = \sqrt{5^2 + 5^2} = 7.1 [/tex]
Perimeter = 7.3 + 7.3 + 7.1 = 21.7
Right problem:
From point L to point J, go 7 left and 1 up.
[tex] LJ = \sqrt{7^2 + 1^2} = 7.1 [/tex]
From point J to point K, go 4 up and 5 right.
[tex] JK = \sqrt{4^2 + 5^2} = 6.4 [/tex]
From point K to point L, go 2 right and 5 down.
[tex] KL = \sqrt{2^2 + 5^2} = 5.4 [/tex]
Perimeter = 7.1 + 6.4 + 5.4 = 18.9
Answer please I need this quick !!!!
Answer:
f(0)=2
Step-by-step explanation:
Since x = 0, the function should look like this, f(0) = 2 - 3(0) by plugging in the x.
The next step is simply to get the solution, which should be 2.
The Hunters drove to visit some friends. The table below shows how long it 1 point
took the Hunters to drive certain distances. Which unit rate describes the
Hunters' speed? (6.RP.2c)
Miles
120
180
240
Hours
2.
3
4.
30 miles per 1/2 hour
O 55 miles per hour
0 60 miles per hour
O 120 miles per 2 hours
Answer:
Step-by-step explanation: 250 miles + 50 miles = 300 miles
300 miles / 5 hours = 60 miles per hour
The snowy slopes ski resort kept track
#7 There are 24.5 ounces of uncooked rice in a bulk container. A customer is removing rice from the container at a rate of 3.25 ounces per second. How many ounces of uncooked rice are in the container after 4 seconds? *
A. 11.5 ounces
B. 21.25 ounces
C. 27.75 ounces
D.37.5 ounces
Answer:
(A) 11.5 ounces
Step-by-step explanation:
Multiply 3.25 by 4
3.25 x 4 = 13
Subtract 13 from 24.5
24.5 - 13 = 11.5
= 11.5 ounces
The ratio using a colon is
82 and 23. Plzz. Help
If f(x) = 2x + 5x and g(x) = 3x - 5, find (f+ g)(x).
O A. 2X + 8x - 5
B. 2X + 2x + 5
C. 24 - 2x - 5
D. 10x - 5
Answer:
D. 10x - 5
General Formulas and Concepts:
Algebra I
Terms/Coefficients/DegreesStep-by-step explanation:
Step 1: Define
f(x) = 2x + 5x
g(x) = 3x - 5
(f + g)(x) is f(x) + g(x)
Step 2: Simplify
f(x) = 7x
g(x) = 3x - 5
Step 3: Find
Substitute: (f + g)(x) = 7x + (3x - 5)Combine like terms: (f + g)(x) = 10x - 5Lou buys 20 pounds of apples for $40. How many pounds can she buy for one dollar?
Answer:
She can buy 2 pounds per dollar.
Step-by-step explanation:
Very Short Answer Questions
3. The total surface area of a cube is 1,944 sq cm. Find its side.
35 points and will be mark as brainlist
[tex]\huge\bf\underline{Answer}[/tex]
Given :- Total surface area of a cube = 1944cm²To Find :- Side of the cubeFormula :-[tex]\boxed{\huge \sf{TSA = 6a²}}[/tex]
Where, TSA = Total surface area of a cubea = Side of a cubeSolution :-Let the Side of a cube be 'x'
By substituting values according to the formula,[tex]\sf{:⇒6(x) ^{2} } = 1944cm^{2} [/tex]
[tex]\sf{:⇒ {x}^{2} = \dfrac{1944}{6} }[/tex]
[tex]\sf{:⇒ {x}^{2} = 324}[/tex]
[tex]\sf{:⇒x = \sqrt{324} }[/tex]
[tex]\sf{:⇒x = 18cm}[/tex]
Hence, The Side of a cube is 18cmWrite an equation for the line that passes through the points (0,6) and (3,0).
y=-23-6
y=-22-3
y=- 4-6
y=-22-3
Answer:
y=-2x+6
Step-by-step explanation:
CAN ANYONE HELP ME PLEASE!!!!!!
Which of the following points is in the solution set of y < x²- 4x + 3?
A. (-3,0)
B. ( 1, 0)
C. (2,-1)
Help please, it’s due today
Answer:
X = 37
Step-by-step explanation:
A triangles angles add up to 180. You have two of the three. You can do
x + 45 + 98 = 180
then simplify
x + 143 = 180
subtract 143 from both sides
x = 37
Find the missing value in the percent statement using a proportion.
______ is 75% of 4.
Answer: 3
Step-by-step explanation: Hope I helped
7. Triangle FIP was dilated by a scale factor of centered at the origin to
create triangle F'I'P', which has coordinates F' (1,-),1'(2,-1),P'(1,2).
Write the coordinates of the vertices of triangle FIP in the spaces
provided below.
FC
16
IC
17
PC
18
Answer:
AB is parallel to A'B'.
DO,1/2 (1/2x, 1/2y) =
The distance from A' to the origin is half the distance from A to the origin.
Step-by-step explanation:
PLEASE ANSWER ASAP FOR BRANLEST!!!!!!!!!!!!!!!
Solve the equation
b/4 +2 = -1
what is b?
Does this graph show a function? Explain how you know. URGENT ANSWERR NOW PLEASE PLEASE!! Godbless
Answer:
D
Step-by-step explanation:
A function never has the same points twice. That's why it failed the vertical line test.
Of the 100 students that were surveyed 36 students say
they were on their phone less than one hour a day. Of the
55 females, 40 use their phone more than one hour a
day. How many males say they use their phone less than
one hour a day?
HELP
Answer:
15 females say they use their phone less than an hour a day
36 - 15 = 21 males that use their phone less than an hour a day
(equation above is the total number of students that use their phone less than an hour a day, with the 15 females that do being subtracted from it. that will leave the number of males that use their phone less than an hour a day, which is your answer.)
In the diagram below, what is the approximate length of the minor arc ?
X
O A. 5.7 cm
40"
9 cm
O B. 7.1 cm
N
O C. 6.3 cm
D. 3.1 cm
Answer: c. 6.3
Step-by-step explanation: