Answer:
=4x+y
Step-by-step explanation:
hope this helps :)
Solve the following equations by using the Quadratic formula and answer the subsequent questions:
x^2 - 6x + 9 = 0
a. Are the roots equal or unequal?
b. Are the roots rational or irrational?
c. Are the roots real or non-real?
(Please explain how you got the answers)
Answer:
Step-by-step explanation:
Note that x^2 - 6x + 9 = 0 can be rewritten as the square of a binomial:
(x - 3)^2
and the roots are found by setting this equal to zero and solving for x:
(x - 3)^2 = 0, or x - 3 = ±0, or x = 3 and x = 3
a) there are two equal roots: {3, 3}
b) the roots {3, 3} are rational
c) the roots {3, 3) are real
If you want to use the quadratic formula, proceed as follows:
1. Identify the coefficients of the quadratic: {1, -6, 9}
2. Find the discriminant b^2 - 4ac: It is (-6)^2 - 4(1)(9) = 36 = 36 = 0
As a general rule, if the discriminant is zero, the quadratic has two equal, real roots. These roots are rational: 3 can be rewritten as 3/1, which is a ratio.
What equation(s) could represent the volume of the cylindrical barrel when completely filled with
water?
Answer:
Volume of cylinder = 1,156.57 cm³
Step-by-step explanation:
Given:
Radius R = 4 cm
Height of cylinder = 23 cm
Find:
Volume of cylinder
Computation:
Volume of cylinder = πr²h
Volume of cylinder = (22/7)(4)²(23)
Volume of cylinder = (22/7)(16)(23)
Volume of cylinder = 1,156.57 cm³
A recipe calls for 13 cup of flour and 25 cup of cinnamon. How many cups of cinnamon are needed for each cup of flour?
Answer:
1.92
Step-by-step explanation:
Given :
Cups of flour = 13
Cups of cinnamon = 25
Number of cinnamon cups needed for each cup of flour :
Number of cinnamon cups / number of cups of flour
25 / 13
= 1.923
Hence, about 1.92 cups of cinnamon is needed per cup of flour
Which equation has a slope of -4 and a y-intercept of -2?
Answer:
y=-4x-2
Step-by-step explanation:
y=mx+b where m=slope and b=y-intercept.
What to say back if someone says shut up in a rude way?
Answer:
say ok bye and walk away
Step-by-step explanation:
Find the area of the shaded polygons
Answer:
40 Square Units
Step-by-step explanation:
Easy way to find area: Diagonal 1 * Diagonal 2 divide by 2 = your answer
Diagonal 1 (AC) = 5 + 5 = 10
Diagonal 2 (BD) = 4 + 4 = 8
10 + 8 = 80, 80/2 = 40
Answer: 40 square units
who want brainlist???
Answer:
its the 3rd one
Step-by-step explanation:
because x=4 and y=28 so 4 times 7 =28
Help please Anyone please help ill give brainlyest if u help with answers please help me anyone help please
Use pythogorean theorem xd
answer 1) sqrt((15.25)^2-(2.75)^2)
etc. and so on
Answer:
1. 15
2. 47.8
3. 5√185
4. 34
Step-by-step explanation:
2.3 lb ≈ __ kg
big ideas math
Answer:
1.043kg
Step-by-step explanation:
2.3lb = 1.043 kg
what function is equivalent to f(x)=-4(x+7) -6
Answer:
Step-by-step explanation:
PLEASE HELP ASAP!!!!
Answer: Im going to say C
Step-by-step explanation: Because the lines both look the same they could be even.
help plz/math will give brainlest
Answer:
area of parallelogram = 21
area of trapezoid = 32
Step-by-step explanation:
Hello There!
The first figure shown is a parallelogram and the following dimensions are given
base = 7mm
height = 3mm
The area of a parallelogram can simply be found by multiplying the base by the height
so Area = 7 * 3
7 * 3 =21 so the area of the parallelogram is 21 square millimeters
The second figure given is a trapezoid and the following dimensions are given
height = 4m
base 1 = 5m
base 2 = 11m
To find the area of a trapezoid we use this formula
[tex]A=\frac{a+b}{2} h[/tex]
where a and b are bases and h = height
given the dimensions all we have to do is plug in the values into the formula
[tex]A=\frac{5+11}{2} 4\\5+11=16\\\frac{16}{2} =8\\8*4=32\\A=32[/tex]
so we can conclude that the area of the trapezoid is 32 square meters
Find the area of each circle to the nearest tenth. Use 3.14 for pi.
Answer:
a=12.56 b=3.14 c=50.24 d=78.5 e=4.5216 f=63.585
Step-by-step explanation:
USE A CALCULATOR!
. A standard die is rolled twice, then a card is
chosen at random from a standard deck.
How many outcomes are possible?
Answer:
64??? take it with a grain of salt but i think its 64
Step-by-step explanation:
There are 6 sides to a die and if its rolled twice thats 12 possible answers and then a standard deck has 52 cards so thats 12+52=64
Answer:
100
Step-by-step explanation:
Can someone please help me with math.
Answer:
neither positive nor negative
Step-by-step explanation:
In order to identify a type of correlation the points have to form where we can draw a line through the points and most of the points will be near that line drawn.
Because most of the points graphed are scattered we cannot identify if it has a positive or negative correlation
I need help what is 19-4.25
The answer is 14.15 :)
Two trains, Train A and Train B, weigh a total of 510 tons. Train A is heavier than Train B. The difference of their weights is 484 tons. What is the weight of each train?
Answer:
Train A is 497 tons and Train B is 13 tons
Step-by-step explanation:
Let a represent the weight of Train A, and b represent the weight of Train B
Set up a system of equations:
a + b = 510
a - b = 484
Solve by elimination by multiplying the top equation by -1
-a - b = -510
a - b = 484
Add these together, and solve for b:
-2b = -26
b = 13
Find the weight of Train A by plugging in 13 as b into one of the equations, and solving for a
a + b = 510
a + 13 = 510
a = 497
So, Train A is 497 tons and Train B is 13 tons
Two Way Table 1
SUV Sedan Totals
Male
21
39
60
45
180
Female
Total 156
84
The two-way table represents the results of a random survey taken to determine the preferred vehicle for male and female drivers.
Given that the participant is a female, which choice is the conditional relative frequency that she prefers an SUV?
es )
A)
0.25
B)
0.55
C)
0.75
D)
0.87
Answer: 0.75
Step-by-step explanation: took the same question
Answer:
0.75
Step-by-step explanation:
I Honestly Don't Know The First Step To Solving This
Answer:
I can pop it into the calculator for you if you'd like.
Step-by-step explanation:
I can edit my answer to give the answer to you.
Suppose your friend says he can solve 3x = 15
by using the Multiplication Property of Equality. Is he correct?
Answer:
He is incorrect
Step-by-step explanation:
Although he can solve it, he would use Division Property or Equality not multiplication
hope this helps ;)
f(x) = x^2 + 16x + 60
Find the vertex
Answer:y
=
(
x
−
8
)
2
−
4
Step-by-step explanation:maybe
PLEASE HELP ME ON THIS.
9514 1404 393
Answer:
D) 8
Step-by-step explanation:
The similarity statement tells us ...
RS/ST = BC/CD
(11x -4)/70 = 60/50
11x -4 = 70(60/50) = 84 . . . multiply by 70
11x = 88 . . . . . . . . . . . . . . .add 4
x = 8 . . . . . . . . . . . . . . . divide by 11
1/2 + 2/3 + 3/4, as a fraction
Answer:
D
Step-by-step explanation:
6/12+8/12+9/12=23/12=1 11/12
Answer:
D. 1 11/12
Step-by-step explanation:
Let's set up our common denominator first. To do this we need to find a number divisible by 2, 3, and 4.
Multiply 3 by 4 and you'll come out with 12. 12 is divisible by 2.
Now, multiply your fractions by the numbers they need to get the denominator to 12.
1/2 x 6/6 = 6/12
2/3 x 4/4 = 8/12
3/4 x 3/3 = 9/12
Add your numerators.
6 + 8 + 9 = 23.
Your fraction should look like 23/12.
Subtract 12 from 23 and you should get 11. Because 12 equals a whole, we can go ahead and put one.
1 and 11/12.
Factor the expression: 14x + 21y – 7z
Answer:
7 ( 2x + 3y - z)
Step-by-step explanation:
To factor this expression, you need to find the GCF, which is 7.
7 ( 2x + 3y - z)
Answer:
7(2x+3y-z)
Step-by-step explanation:
You have to factor by graphing !
The diameter of a circle is 36 inches. What is the circle's area?
Use 3.14 as pi
Step-by-step explanation:
Given
diameter (d) = 36 inches
Radius (r) = d / 2 = 36 / 2 = 18 inches
Now
Area of the circle
= πr²
= 3.14 * 18²
= 1017.36 inches²
Hope it will help :)❤
Peter has 7 oranges sam as 5 and mary has 3 . What is the ratio of the oranges of peter mary and sam
Answer:
7:3:5
Peter:Mary:Sam
Which rule describes the translation below? On a coordinate plane, triangle S T U is shifted 3 units down and 5 units to the left to form triangle S prime T prime U prime.
Answer:
(x, y) ⇒ (x - 5, y - 3)
Step-by-step explanation:
Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.
Translation is the movement of a point up, down, left or right. If a point A(x, y) is translated a units left and b units down, the new point is at A(x - a, y - b), while If a point A(x, y) is translated a units right and b units up, the new point is at A(x + a, y + b).
Given that triangle S T U is shifted 3 units down and 5 units to the left to form triangle S prime T prime U prime. The rule that describes this translation is given as:
(x, y) ⇒ (x - 5, y - 3)
Consider the original parallelogram and the reduction.
A parallelogram with side lengths 18 centimeters and 45 centimeters. A second parallelogram with side lengths A and 5 centimeters.
Figures not drawn to scale.
What is the length of side A in the new parallelogram?
2 cm
9 cm
90 cm
162 cm
i believe it is a but someone pls confirm thx
I can confirm that it is A as I took the test and got 100%.
The length of side A in the new parallelogram will be [tex]2[/tex] cm.
What is Scale Factor ?Scale Factor is defined as the ratio of size of new image formed to the size of old image.
We have,
A parallelogram with side lengths [tex]18[/tex] centimeters and [tex]45[/tex] centimeters.
And,
A second parallelogram with side lengths [tex]A[/tex] and [tex]5[/tex] centimeters.
Now,
Scale Factor [tex]=\frac{size\ of\ new\ image}{size\ of\ old\ image}[/tex]
So,
Now, Comparing sides ,
We get,
Scale Factor [tex]=\frac{45}{5}=9[/tex]
i.e. the second parallelogram have Scale Factor of [tex]9[/tex].
So,
Other sides of both parallelograms will be of same Scale Factor.
i.e.
[tex]=\frac{18}{A} =9[/tex]
⇒
[tex]A=2[/tex] cm
Hence, we can say that the length of side A in the new parallelogram will be [tex]2[/tex] cm.
To learn more about scale factor click here
https://brainly.com/question/22312172
#SPJ2
what is the value of the expression 8-(2 cubed +48) /8
Answer:1.5
Step-by-step explanation:
3 5 of the first group are right-handed. 80% of the second group are right-handed. What fraction of the class is right-handed?
Answer:
7/10
Step-by-step explanation:
To make things simple, let's turn 80% into a fraction, 8/10. To get a common denominator let's turn 8/10 into 4/5. Since they are both of equal size, the first group would have 2/5 left-handed people and the second 1/5 left-handed people. Let's imagine that each group has 5 people in it. There would be 10 people in total. There is 1 person for each fifth so we can add now. 4 + 3 = 7 right handed people. To check, 2 + 1 = 3 and 3 + 7 = 10. so 7/10 of the class is right-handed.