Which of the following constants can be added to x^2- 3x to form a perfect square trinomlal?
A. 2 1/4
B. 1 1/2
C. 4 1/2
Answer:
A 21/4
Step-by-step explanation:
When forming a perfect square trinomial you need to "complete the square".
All of the steps to completing the square when solving an equation:
1. The leading coefficient must be 1.
2. Divide b by 2.
3. Square (b/2)
4. Add (b/2)^2 to both sides to keep the polynomial balanced.
5. You can now write the perfect square trinomial and solve.
x^2 - 3x
-3/2
(-3/2)^2 = 9/4 = 2 1/4
Jeremy ran 16 miles less than Kacie last week. Jeremey ran 8 miles. How many miles did Kacie run?
Answer:
24 miles
Step-by-step explanation:
if J (Jeremy) ran 16 less than K(Kacie) and J ran 8 miles add 8 and 16 together which is 24 to get the answer.
hope this helped
Answer:
24 miles
Step-by-step explanation:
let what Kacie ran be x miles
x-16=8, 16 being the difference of what they ran, 8 being how many miles jeremey ran
that makes x=24 because 16+8=24
Explain how you know that x^2-8x+20 is always positive.
Please help.
Answer:
if you rearrange to complete the square, you get (x^2-4)^2 +4
and seeing as anything squared will always be positive or zero, the lowest possible value for (x^2-4)^2 is 0, when x = 4
and 0 + 4 = 4, which is greater than 0, so positive
Step-by-step explanation:
We have x^2-8x+20 is always positive.
What is equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign. In its simplest form in algebra, the definition of an equation is a mathematical statement that shows that two mathematical expressions are equal. For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an 'equal' sign.
here, we have,
x^2-8x+20
=x^2-2.x.4+16+4
if you rearrange to complete the square,
you get (x^2-4)^2 +4
and seeing as anything squared will always be positive or zero,
the lowest possible value for (x^2-4)^2 is 0, when x = 4
and 0 + 4 = 4, which is greater than 0,
so, positive.
To learn more on equation click:
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how do find the √27 between? How can you solve without a calculator?
Please solve the equation for this missing angle. Please Help ASAP!!!
Answer: D
Step-by-step explanation:
5x + 4x = 180°
Angles on a straight line add to 180°
find the length of a using the pythagorean theorem. SOMEONE PLZ HELPPP:)
Answer:
Step-by-step explanation:
Answer:
a=6
Step-by-step explanation:
edge21
What is the remainder when x2 + 5 is divided by x +1?
Answer: the answer is 6
Step-by-step explanation: You can use polynomial long division or synthetic division.
Ava's watering can holds 2 liters of
water. She uses 200 milliliters to
water each of her plants. How many
plants can she water if she use the
entire watering can? (uh i’m about to get 0 )
Answer:
2,000 m (2 Liters) = 100 plants
Step-by-step explanation:
2,000 milliliters make up 2 liters.
200 liters are being poured.
2,000/200 = 10
10 plants are being watered each time.
200 m = 10 plants
400 m = 20 plants
600 m = 30 plants
800 m = 40 plants
1,000 m = 50 plants
1,200 m = 60 plants
1,400 m = 70 plants
1,600 m = 80 plants
1,800 m = 90 plants
2,000 m = 100 plants
Let me know if this helps!
3. Suppose the radius of the larger circle is r. What is its diameter?
d2 =
R2
Answer:
2r
Step-by-step explanation:
You suppose that the radius of a larger circle = r
so diameter = r*2 = 2r
aint really sure tho
Answer:
2R
Step-by-step explanation:
The formula to find the diameter states the relationship between the diameter and the radius. The diameter is made up of two segments that are each a radius. Therefore, the formula is: Diameter = 2 * the measurement of the radius. You can abbreviate this formula as d=2r.
IF YOU COULD HELP OUT THAT WOULD BE GREAT :)
Given the sequence 9,6,3,0,..., at what nth term will the number become -24?
Answer:
12
Step-by-step explanation:
A sequence is given and we need to find the term when it will become -24 . The given sequence is,
9 , 6 , 3 ,0 , . . . . .
Here Common Difference can be calculated by subtracting consecutive terms . So the Common Difference is 6-9 = -3 . Here the nth term is (-24) .Now using the formula to find nth term .
⇒ T_n = a + (n-1)d
⇒ (-24) = 9 + (n-1)(-3)
⇒ -24-9 = (n-1)(-3)
⇒ (n-1) = -33/-3
⇒ n-1 = 11
⇒ n = 11 + 1
⇒ n = 12
Hence the required number of term is 12.Grade 2
Odd or Even
1. 66
2. 19
3. 42
4. 37
5. 91
6. 76
7. 61
8. 93
9. 26
10. 72
1. Even
2. Odd
3. Even
4. Odd
5. Odd
6. Even
7. Odd
8. Odd
9. Even
10. Even
1) (-2,5)
2) (2,-5)
3) (-2,-5)
4) (2,5)
Answer:
(2,5)
Step-by-step explanation:
help pleaseee ill give u brainliest
Answer:
3.84 in³
Step-by-step explanation:
V=l*w*h
[tex]5.97*1.34*.48\\=3.839904[/tex]
≈3.84
Answer:3.84 in³
Step-by-step explanation:
2x=8(x^2)
What is the solution of this maths equation?
Answer:
x=0,x=1/4
Step-by-step explanation:
2x=8(x^2)
Subtract 8(x^2) from both sides
2x-8x^2=8x^2-8x^2
Simplify
2x-8x^2=0
Factor 2x-8x^2;
2x-8x^2
=-8xx+2x
Rewrite 8 as 2*4
=-2*4xx+2x
Factor out common term -2x
=-2x(4x-1)
-2x(4x-1)=0
x=0 or 4x-1=0
Solve 4x-1=0;x=1/4
4x-1=0
Add 1 to both sides
4x-1+1=0+1
Simplify
4x=1
Divide both sides by 4
4x/4=1/4
Simplify
x=1/4
The solutions to the quadratic equation are;
x=0,x=1/4
Hope this helped!!!!
44 is r% of 16 what is r
Answer:
r= 275
Step-by-step explanation:
Let's write an equation with the given information.
44= r% ×16
Rewrite the percentage as a fraction:
[tex]44 = \frac{r}{100} \times 16[/tex]
Divide both sides by 16:
[tex] \frac{r}{100} = 44 \div 16[/tex]
[tex] \frac{r}{100} = 2.75[/tex]
Multiply both sides by 100:
r= 2.75(100)
r= 275
The product of 7 and b is less than -35.
HELP ASAP
hugo has a cylindrical container that holds marbles. The container has a height of 10 inches and a radius of 5 inches.
Answer is in a photo. I can only upload it to a file hosting service. link below!
bit.[tex]^{}[/tex]ly/3a8Nt8n
The difference of two numbers is 4. Their sum is 24.what are the numbers?
Write equation
Answer:
x = 14 and y = 10
Step-by-step explanation:
TRANSLATING WORDS INTO EQUATIONS:
Let the two numbers be x and y
"The sum of two numbers is 24" translate as x + y = 24
"Their difference is 4" translates as x-y=4
Those two equations make up the system of linear equations
SOLVING BY ELIMINATION:
Adding the two equations, we get
x + y + x - y = 24 + 4
2x = 28
x = 28 / 2
x = 14
substituting that into x + y = 24 we get
14 + y = 24
y = 24 - 14
y = 10
hope it helps :)
(I’ll give brainliest) The scale on Bobby's map is 2 in. = 50 mi. His final destination is 6 in. away
from his current location. How many miles does Bobby have to go before he
reaches his destination?
A.50 mi.
B.100 mi.
C.150 mi.
D200 mi.
Answer:
C. 150 miles.
Step-by-step explanation:
By multiplying the scale by 3 to get the value for 6 inches, you can find that 6 inches on the map is equal to 150 miles.
ASAP please :))) will greatly appreciate
2 * m + n =
2 *(-2) + 3 = Sustituyendo el valor de cada letra.
-4 + 3 = -1
me ayudan porfa
Answer:
2xm+3=34
Step-by-step explanation:
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A.none
B.Supplementary
C.Complementary
D.Vertical
The solids are similar. Find the volume V of the red solid.
Answer:
13,564.8
Step-by-step explanation:
The ratio of the volumes of similar solids is the cube of the scale factor.
Scale factor:
red solid : blue solid = 12/10 = 6/5
Ratio of volumes:
volume red solid : volume blue solid = (6/5)^3
volume of red solid = 7850 ft^3 * (6/5)^3 = 13,564.8 ft^3
Answer: V = 13,564.8 ft^3
Cookies cost $3.50 per package. How many packages of cookies can Gail buy if she has \$42 .00? Write an equation and solve.
Answer:
Solve: 12 packagesEquation: n = $42.00¢Step-by-step explanation:
Given
1 package = $3.50¢
∴, ? package = 42.00¢
Equation
Identify the variable. Let n be the variables, then, the equation is: n=$42.00¢
Solve
Since 1 is 3.50
To find 42.00
Divide 42.00 by 3.50
42.00 ÷ 3.50 = 12
Therefore, Gail can buy 12 packages with $42.00¢
Root 24 multiplied by root 6
Answer:
12
Step-by-step explanation:
hello :
√24 ×√6 = √(24×6) =√144 = √12² = 12
Answer:
root 144 or 12
Step-by-step explanation:
24 by 6 is 144 so root 144 becomes 12
Help please
WILL MARK YOU BRAINLIEST!!!!!
Plzz help me plzz no links i really need help. will mark braiiniest
Answer:
B
Step-by-step explanation:
I hope this helps you :)
Answer:
thx for the points
Step-by-step explanation:
help ASAP!!!
I'll give you points
G I DID THIS ON KHAN!!!
need help with this will give more points if you want