Answer:
9a2-2b2=9 times 4 times 2 - 2 times 7 times 2=72-28=44
The answer is 44, hoped I helped :P
Plsss help me I have a limited amount of time!!!
I will give brainliest!!!
Answer: (5x² +3) (5x² - 9)
Plz mark brainliest:)
Answer:
[tex](5x^2+3)(5x^2-9)[/tex]
Step-by-step explanation:
NEED HELP NOW One solution to a quadratic equation is x=-5/3 What is true about any remaining solutions? There are no complex solutions. There are no other real solutions. There are two or more complex solutions. There is exactly one complex solution. There is exactly one more real solution. There are at least two more real solutions.
Given:
One solution to a quadratic equation is [tex]x=-\dfrac{5}{3}[/tex].
To find:
The true statement about remaining solutions.
Solution:
We know that, number of solution to a quadratic equation is 2.
According to the complex conjugate root theorem, if a complex number x+iy is a root of an equation then its conjugate x-iy is also a root of that equation.
It means, the complex roots are in the pair of two.
Using complex conjugate root theorem, a quadratic equation has either 0 complex roots or 2 complex roots.
One solution to a quadratic equation is [tex]x=-\dfrac{5}{3}[/tex], which is real.
There are no complex solutions and there is exactly one more real solution.
Therefore, the correct options are A and E.
Someone pls help and write the equation pls and the answer
Answer:[tex](-7-2)=-3(-3-0)[/tex]
Step-by-step explanation:
First use slope intercept form to find the value of b (the y intercept). The slope intercept formula is
[tex]y=mx+b[/tex]
Since we are given the point (-3,2), we can say that y=2 and x=-3. m=-3. Then we get
[tex]2=-3(-3)+b[/tex]
[tex]2=9+b[/tex]
[tex]b=-7[/tex]
Since we now have the y intercept, we can convert it to a point: (0,-7). Plug this into the point slope equation:
[tex](y_{1}-y_{2})=m(x_{1}-x_{2})[/tex]
Our first point is (-3,2). Our second point is (0,-7). Therefore:
[tex]x_{1}=-3\\y_{1}=2\\x_{2}=0\\y_{2}=-7\\m=-3[/tex]
Plugging into the equation, we get
[tex](-7-2)=-3(-3-0)[/tex]
I don’t get this please help me if your smart u get 10 points
Answer:
112
Step-by-step explanation:
Supplementary angles means that angle A and angle B added together equal 180˚. This mean we can re-write the angle measures into an algebra problem
A(3x+16) + B(2x + 4 ) = 180
Or
5x + 20 = 180
5x + 20 - 20 = 180 - 20
5x = 160
5x/5 = 160/5
x = 32
Now that we know that X = 32, we can plug 32 into the measure of angle A.
A(3x+16)
A(3(32)+16)
A(96+16)
A(112)
Angle A equals 112˚ and Angle B equals 68˚.
Solve the equation.
54k = 0
A 27
B 1
C 54
D 0
Answer:
D
Step-by-step explanation:
ANY THING X 0 IS 0
Answer:
0
Step-by-step explanation:
zero divide any number is zero
A bag contains:
4 blue marbles
2 green marbles
1 red marble
A marble is chosen at random from the bag and not replaced. Then, a second marble is chosen from the bag. What is the probability that the first marble was red and the second marble was green?
Which values from the set {−8, −5, −1, 0, 2, 4, 9} satisfy this inequality?
−12x + 6 ≥ 8
a. -8 -5 -1 0 2 4 9
b. -8 and -5 only
c. 4 and 9 only
D.-8 -5 and -1 only
Answer:
the answer that i got was D
Step-by-step explanation:
i did -12x+6
the X is the numbers that they give you so
you would do -12*-8+6 = 102 which is bigger than 8
then you would do -12*-5+6= 66 which is bigger than 8
and last but not least you do -12*-1+6=18 which is bigger than 8
2x+ 1 = 19
This is supposed to be two step equations.
Answer:
x=0.1
Step-by-step explanation:
2x+1+=19
19-1=18
2x=18
2/18=0.1
x=0.1
Answer:
x= 9
Step-by-step explanation:
First I would subtract the 1 from 19 which leaves me with 18 then divide both sides by 2 so 2x/2 = 18/2 which gives me 9 now to check. 2 multiplied by 9 =18 plus 1 =1 9. and thats how I get the answ.r
Please help!
Translations and dilation
Answer:
It looks to me to be a dilation of the old figure
Step-by-step explanation:
The old figure is bigger than the new one. in order for this to happen you need to make it smaller. These to are also similar triangles
P.s.
I hope it is right and it helps you
Solve the inequality and graph the solution on the line provided.
14 + 8x > 30
I bad at math so can someone help me hehe
Answer:
The inequality notation is x >= 2 (put the line underneath >)
Number line should have a filled in dot on the 2, with an arrow pointing to the right infinitely.
Explanation:
14 + 8x >= 30
8x >= 16
x >= 2
>= is just this symbol (>) with a line underneath it.
Hope this helps!
Can you please help me with this?
Answer:
[tex]m=\frac{6}{5}[/tex]
Step-by-step explanation:
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Simply plug in the 2 coordinates into the slope formula to find slope m:
(2, -5)
(7, 1)
[tex]m=\frac{1-(-5)}{7-2}[/tex]
[tex]m=\frac{1+5}{5}[/tex]
[tex]m=\frac{6}{5}[/tex]
What is \text{P(roll less than 4})P(roll less than 4)start text, P, left parenthesis, r, o, l, l, space, l, e, s, s, space, t, h, a, n, space, 4, end text, right parenthesis? If necessary, round your answer to 222 decimal places.
Incomplete question:
A fair die is rolled one. What is P(roll less than 4)? If necessary, round your answer to 2 decimal places.
Answer:
P(roll less than 4) = 0.50
Step-by-step explanation:
First, we need to list the sample space.
[tex]S = \{1,2,3,4,5,6\}[/tex]
From the above, we have that:
[tex]n(S) = 6[/tex] i.e. total rolls
Represent Rolls less than 4 with L4; So,
[tex]L4 = \{1,2,3\}[/tex]
[tex]n(L4) = 3[/tex] i.e. number of rolls less than 4
The required probability is calculated as:
[tex]Probability = \frac{n(LA)}{n(S)}[/tex]
[tex]Probability = \frac{3}{6}[/tex]
[tex]Probability = 0.50[/tex]
Answer: 0.50
Step-by-step explanation: Khan academy
ANSWER THIS AND YOU GET BRAINLIEST!
Which number is irrational?
7/6
√289
3.3333
√2
Answer:
The correct answer is the square root of 2.
Step-by-step explanation:
Irrational numbers can not be put into fractions, so it is not the first one. 3.3333 is also 3 1/3 and the square root of 289 is rational.
Shawna is going out of town for the day, so she asks a friend to watch her 3 dogs. She wants to 1 leave of a pound of food for each dog. If a can of dog food has 0.75 pounds of food, how many 2 cans should Shawna leave?
Answer:
2
Step-by-step explanation:
if she has 3 dogs and each gets a pound of food. Each can if food has .75 pounds in it then you would times that by then you would get 4 cans of food.
Shawna wants to leave 1 pound of food per dog, and she has 3 dogs. So, she needs 3 pounds of food in total.
What is the division operation?In mathematics, divides left-hand operands into right-hand operands in the division operation. The primary purpose of the division is to generate equal groupings or to determine how many people are in each category after a fair distribution.
For example 4/2 = 2
A can of dog food has 0.75 pounds of food.
To determine the number of cans of food Shawna should leave, divide the total amount of food she needs (3 pounds) by the amount of food in each can (0.75 pounds).
⇒ 3 pounds / 0.75 pounds/can = 4 cans of food.
Therefore, Shawna should leave 4 cans of food for her 3 dogs.
To learn more about the division operation click here :
brainly.com/question/25870256
#SPJ5
In the next several games, Pedro Smalley, the pitcher threw a total of 384 pitches and used a fastball 240 times. What decimal should Juanita use to update her report? Show your work
Answer:
5/8
Step-by-step explanation:
Total pitches thrown = 384
Number of fastballs = 240
To obtain the decimal that should be used to update report ;
Take the ratio of fastballs to the total number of pitches :
Fastballs / total number of pitches
240 / 384
= 30 / 48
= 10 / 16
= 5 / 8 (lowest term)
A 7-inch candle burns at a rate of 2 inches an hour. Which equation represents the relationship between y, the height of the candle in inches, and x, the number of hours the candle burns?
Given :
A 7-inch candle burns at a rate of 2 inches an hour.
To Find :
An equation represents the relationship between y, the height of the candle in inches, and x, the number of hours the candle burns.
Solution :
We know, linear equation is given by :
[tex]y = mx + c[/tex]
At x = 0 -> y = 7
So,
7 = m(0) + c
c = 7 .....1 )
At x = 1 -> y = 5
So,
5 = m(1) + c
c + m = 5 .....2 )
Solving equation 1 and 2 , we get :
m = -2 and c = 7
Therefore, equation is given by y = -2x + 7 .
Hence, this is the required solution.
Answer:7–2x
Step-by-step explanation: you are subtracting 7 from 2 hours /x
Review the proof of Cosine (StartFraction theta Over 2 EndFraction) = plus-or-minus StartRoot StartFraction 1 + cosine theta Over 2 EndFraction EndRoot.
Which step contains an error?
Answer:
Error in step (5)
Step-by-step explanation:
Steps Statements
1 cos(2x) = 2cosx - 1
2 Let (2x) = θ
3 Then x = [tex]\frac{\theta }{2}[/tex]
4 cos(θ) = [tex]2\text{cos}^2{\theta}-1[/tex]
5 cos(θ) + 1 = [tex]2\text{cos}^2{\frac{\theta}{2}}[/tex]
6 [tex]\frac{1+\text{cos}\theta }{2}=cos^{2}\frac{\theta }{2}[/tex]
7 [tex]\text{cos}^{2}\frac{\theta }{2}=\frac{1+\text{cos}\theta }{2}[/tex]
8 [tex]\text{cos}(\frac{\theta }{2})=\pm \sqrt{\frac{1+cos(\theta)}{2} }[/tex]
By comparing the solution given in the picture attached with the solution above,
Step 5 has error.
There should be [cos(θ) + 1 = [tex]2\text{cos}^2({\frac{\theta}{2}})[/tex]] in place of [-1 + cos(θ) = [tex]2\text{cos}^2({\frac{\theta}{2}})[/tex]]
Answer:
C. Step five
Step-by-step explanation:
got it right on edge :)
A phone company offers two monthly charge plans. In Plan A, the customer pays a monthly fee of $20 and then an additional 6 cents per minute of use. In Plan B, the customer pays a monthly fee of $31.50 and then an additional 4 cents per minute of use. For what amounts of monthly phone use will Plan A cost less than Plan B? Use m for the number of minutes of phone use, and solve your inequality for m.
Answer:
m>575Step-by-step explanation:
let the total cost be y
and the number of minutes be m
Plan A
$20 and additional 6cent
6cent to dollar =$0.06
the linear expression is given as
y=20+0.06m---------1
Plan B
$31.5 and additional 4cent
6cent to dollar =$0.04
the linear expression is given as
y=31.5+0.04m----------2
Equating 1 and 2 we can find m
20+0.06m=31.5+0.04m
20-31.5=0.04m-0.06m
-11.5=-0.02m
m=11.5/0.02
m=575
therefore m>575
Factor x^2+x-12 = 0 and x^2-6x+9 = 0.
Answer: x^2+x-12 = 0 ⇒ x = -4 or x = 3 and x^2-6x+9 = 0 ⇒ x= 3
x^2+x-12 = 0 (Find two numbers that add to 1 and multiply to -12)
x^2-3x+4x-12 = 0 (Factor out like terms)
x(x-3)+4(x-3) = 0 (Group common terms)
(x-3)(x+4) = 0 (Set each term to equal 0 and solve for x)
∴ x = -4 or x = 3
x^2-6x+9 = 0 (It's a perfect square trinomial)
(x-3)^2 = 0
∴ x = 3
Answer: x = -4 and x = 3 for the first one. x- 3 for the second one.
Step-by-step explanation:
big brain time
Anthony works in a grocery store.apples are on sale this week for 5 pounds for $12.00 .How much would 3 pounds cost?
Answer:
7.20
Step-by-step explanation:
12/5=2.4
2.4 for lb of apples
2.4*3=7.2
Answer:
$7.20 for 3 pounds
Step-by-step explanation:
How do I divide decimals by whole number.
Answer: You move the decimal to the right for the dividend and divisor.
Step-by-step explanation:
HELP ME OUT ASAP!!!!!
Answer:
13.5
Step-by-step explanation:
1350/100=13.5
Answer:
13.5 gallons
Step-by-step explanation:
you divide basically I don't know how to explain but that's the answer
Ruben bought 6 comic books for 21$. Each comic book is the same price. How much is one comic book?
Answer:
$3.50
Step-by-step explanation:
9 - 3 divide 1/3 + 1 =
Answer:
8
Step-by-step explanation:
Answer:
1
Step-by-step explanation:
9 - 3 divide 1/3 + 1
-3 divide by 1/3
9 - 9 + 1
0 + 1
1
It is 1, because you should use the order of pemdas. PEMDAS tells you what to calculate first, second, third and so on, until the calculation is complete.
PEMDAS is an acronym for the words parenthesis, exponents, multiplication, division, addition, subtraction.
On weeks days, Aaron gets home from school at 4:30 p.M., and his bedtime is at 9:00 p.M. If he spends 90 minutes playing football, 35 minutes eating dinner, and 1 hour and 45 minutes doing homework, how much time after school will Aaron have left to play video games?
Answer:
40 minutes
Step-by-step explanation:
Time at which Aaron gets home from school = 4:30 PM
Bedtime for Aaron = 9:00 PM
Total available for Aaron = 9:00 - 4:30 = 4 hr 30 minutes
To convert minutes to hours, we need to divide by 60.
Time spent in playing football = 90 minutes = [tex]\frac{90}{60} = 1\ hr\ 30\ minutes[/tex]
Time spent eating dinner = 35 minutes
Time spent in doing homework = 1 hr 45 minutes
Total time spent = 1 hr 30 minutes + 35 minutes + 1 hr 45 minutes = 2 hr 110 minutes = 3 hr 50 minutes
Time left for Aaron to play video games = 4 hr 30 minutes - 3 hr 50 minutes = 40 minutes
Complete each table for the given sequence. Then write the ordered pair
Answer:
table will be 7, 11, 15,19
Order pairs will be (1,7)(2,11)(3,15)(4,19)
the fifth term of the sequence will be 23
Step-by-step explanation:
4 (1)+3=7
4(2)+3=11
4(3)+3=15
4(4)+3= 19
4(5)+3=23
Hope this helps
So ummm what was the answer ♀️
Give the place value of the digit 2 in 853,267,149.
Answer:
hondred thosend
Step-by-step explanation:
Answer:
The place value is the hundred thousands place.
Step-by-step explanation:
<3
who ever answers this right gets brainliest
Answer
d.?
Step-by-step explanation:
PLEASE HELP I will give 100 Branly points to anyone hoo can help Which of the following is the equation of a direct variation that has a constant of variation equal to -1/2
A) y = - 1/2 x
B) y = x - 1/2
C) - 1/2 y =x
D) y = -2 x
Answer:
A
Step-by-step explanation:
Answer:d
Step-by-step explanation: