solve for x using the quadratic formula -2x^2+2x+9=0
Answers
Related Questions
The sum of two numbers is -64. Their difference is -10. Find the numbers.
The smaller number is:
The larger number is:
Answers
Answer:
smaller: -37, larger: -27
Step-by-step explanation:
say one number is x the other one is y
x+y = -64
x-y = -10
subtract the two equations to get
2y = -54
y = -27
x = -37
-27 is larger, -37 is smaller
What's the length of side AB in ∆ABC shown?
A. 5
B. √313
C. 6
D. √15
Answers
Answer:
The value of x = 5 units.
Step-by-step explanation:
Given the right-angled triangle ∆ABC with the following dimensions
AC = a = 12
BC = c = hypotenuse = 13
AB = b = x
Pythagorean Theorem
For a right-angled triangle with the sides, a and b the hypotenuse c is defined as:
[tex]c=\sqrt{a^2+b^2}[/tex]
Thus, using the Pythagorean Theorem to determine the value 'x',
[tex]b=\sqrt{c^2-a^2}[/tex]
as b = x, so
[tex]x=\sqrt{c^2-a^2}[/tex]
a = 12c = 13so
[tex]x=\sqrt{13^2-12^2}[/tex]
[tex]x=5[/tex]
Therefore, the value of x = 5 units.
Jesse's lemon cookie recipe calls for 2 1/2 of a cup of sugar. How much sugar would Jesse use to triple the recipe?
Answers
Answer:
She would need 7 1/2 half cups to triple the recipe.
Step-by-step explanation:
Answer:
7 1/2 or 7.5 cups of sugar
Step-by-step explanation:
multiply 2.5 times 3 = 7.5 or 7 1/2
I need help with this
Answers
Answer:
A
Step-by-step explanation:
There are 8 triangles and 12 circles. What is the simplest ratio of triangles to circles?
Answers
Answer:
8:12
Step-by-step explanation:
Answer:
8/12=2/3
Step-by-step explanation:
simplest ratio of triangles to circles=8/12
=2/3
help meh match the following.
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Answer:
1. 2rs = the 4th blank
2. 18rst = the 1st blank
3. 25ab = the last blank
4. 30abc = the second blank
5. 45abr = the 3rd blank
Step-by-step explanation:
Please mark brainliest.
Answer:
See below.
Step-by-step explanation:
Multiply out the numbers on each line to the right and see which line on hte left they correspond to.
1. 2rs = 2 * r * s
2. 18rst = 2 * 3 * 3 * r * s * t
3. 25ab = 5 * 5 * a * b
4. 30abc = 2 * 3 * 5 * a * b * c
5. 45abr = 3 * 3 * 5 * a * b * r
The Ratio of green house to White House’s on Winthrop street is equal to 2 to 3.There are 60 White House’s on Winthrop Street.How many green houses are there?
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Answer:20
Step-by-step explanation:
IF M
PLEASE EXPLAIN ??
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Evaluate the expression 6LaTeX: xx - LaTeX: x^2x 2 for x = 0, 1, 2, 3, 4, 5, and 6. Use your results to fill in the table
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Answer:
I don't know maybe ask the person that gave you this problem
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
what is m and b in 3y-6x=-12
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And b as in y axis is -4
the is the quotient of 1 2/3 ÷ 1/9?
Answers
Answer: 5/27 0r 0.185185
Step-by-step explanation:
Hopes this helps!
A farm stand sells oranges in 3-lb bags for $3.75. What equation represents
the cost, c, for p pounds of oranges?
Answers
Answer:
.
Step-by-step explanation:
If ƒ (x ) = 3x2 - x, find ƒ (-2).
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Answer:
answer is 4.......
Step-by-step explanation:
....
Ms. Erickson is going to see the hot air balloons in Albuquerque, New Mexico.
She found out that for every 5 balloons in the sky, 2 of them will be rainbow colored.
If there are 150 balloons in the sky, how many will be rainbow colored?
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Answer:
60
Step-by-step explanation:
You have to multiply the top and bottom of the fraction (2/5) by 30 so the denominator will be 150. You also have to multiply the top by 30 (2 times 30). The answer is 60 will be rainbow colored!
2 x 30 = 60
5 x 30 = 150
Determine if A^-1 C=C A^-1 Given:
A^-1 C=
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CA ⁻¹ is undefined because there are more columns in A ⁻¹ than there are rows in C.
Answer:
The answer is C!
The next one is UNDEFINED
Step-by-step explanation:
HELP THIS IS TIMED I WILL GIVE YOU LOTS OF POINTS! Which expression is equivalent to -6(-2/3 +2x)
A. -4 -12x
B. -4 +2x
C. 4 - 12x
D.4 + 12x
Answers
Answer:
c
Step-by-step explanation:
4 - 12x
Help me with this pleaseeee
Answers
Craig likes to collect vinyl records. Last year he had 10 records in his collection. Now he has 12 records. What is the percent increase of his collection?
Answers
Answer:
2%
Step-by-step explanation:
2% of 10 is 2. 10 + 2= 12 therefore it is a 2% increase
191 Oa 1 Ob.(-9) Oc. 9 Od 9
Answers
Answer:
OD
hope this help thank me if did
Step-by-step explanation:
Galaxy Comics has a special deal this month. When a customer buys 3 comic books, they
receive 2 action figures with their purchase. Juan bought all 9 comic books from his favorite
series, The Mighty Master.
How many action figures did Juan receive with his purchase?
Answers
Answer:
6 action figures
Step-by-step explanation:
I checked it on IXL
Answer:
The answer is 6
Step-by-step explanation:
15pts. Please Answer, Im Checking If I Am Correct Is It 8.40? A box of 100 sanitizing wipes costs $12 . How much does one wipe cost?
Answers
Answer:
Each wipe costs .12¢
Step-by-step explanation:
I think you would have to divide $12 by 100 because the are 100 wipes and that equals 0.12
Answer:
$0.12
Step-by-step explanation:
One box of wipes contains 100, which costs 12 dollars.
The price for one wipe would be the total price, $12, divided by the 100 wipes. Therefore,
12 / 100 = $0.12 each
Help me with this question pleaseeee
Answers
Answer:
a=69
Step-by-step explanation:
121-52 is equal to 69
Hope this help
2 5/8 divided by 1/2
Answers
Answer 5 1/4
Step-by-step explanation:
simplify --- 2 5/8 = 21/8
flip 1/2 = 2/1
multiply 21/8 x 1/2
answer = 5 1/4
21/8 divided by 1/2 is 21/8×2/1 which is equal to [tex]5\frac{1}{3}[/tex].
What is a fraction?A fraction is written in the form of p/q, where q ≠ 0.
Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.
Given, are two fractions [tex]2\frac{5}{8} and \frac{1}{2}[/tex] which is,
21/8 divided by 1/2.
Now we can flip the divisor and make it a multiplier.
∴ (21/8×2/1).
= 42/8.
= [tex]5\frac{1}{3}[/tex].
learn more about fractions here :
https://brainly.com/question/10354322
#SPJ2
1. The cost of fair tickets and admission is shown in
the table below.
Number of
Tickets
Total Cost
(dollars)
5
25
10
45
15
65
Which equation best represents x in relation to y?
Ay - 4x + 5
B. y = 5x + 4
c. y = 5x + 20
D. y = 0.25x + 5
Answers
Answer:
Step-by-step explanation:
D
Answer:
D
Step-by-step explanation:
1. If a Grey Whale has a MASS of 34,000 kg and a Swimming SPEED
(VELOCITY) of 8.25 m/s, what is the Whale's MOMENTUM?
2. A Cheetah can run at top speed for about 8 seconds and run about 225 meters
during this time. Calculate their SPEED (VELOCITY):
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Answer:
[tex] \: \: \: \: 1. \\ - - - - - - - - - \\ momemtum \: = mass \times velocity \\ = 34000 \times 8.25 \\ = 280500 \\ \\ 2. \\ - - - - - - - - - - \\ velocity \: = \frac{distance}{time} \\ = \frac{225}{8} \\ = 28.125 \: m {s}^{-1} [/tex]plsss mar it as a brilliant answerand like it ❤a line passes through the points ( 1, 4 ) and ( 3, -4 ) . what is the equation of the line
Answers
Answer:
y = -4x + 8
Step-by-step explanation:
y=-4x+8
PLEASE HELP ITS FOR A GRADE!!!
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hello I need help on Number 9
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what 198/28 as a mixed number?
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Answer:
7 1/14
Step-by-step explanation:
198÷28 = 7.blablabla
Therefore, 7 is the integer
so you take 7 and multiply it by 28 = 196
198 - 196 = 2
Therefore, 2 is the remainder
The format for mixed numbers is Integer (remainder/denominator)
so the mixed fraction is 7 2/28
2/28 can be reduced to 1/14
Therefore the final answer is 7 1/14
Please help me please
Answers
Answer:
The answer would be "j"
Step-by-step explanation:
First, you would want to find the value of the original equation:
5(y + 2) + 4
Use order of operations and distribute the five.
5y + 10 + 4
5y +14
This is the value of the original equation
Now we can work through the other options, but because we already know the answer, lets see about that one.
5 x y + 5 x 2 + 4
Again, use order of operations.
Multiply first
5y + 10 + 4
and complete the equation
5y + 14, which equals our original equation.