Answer:
Factoring 3x2 - 2x - 1
The first term is, 3x2 its coefficient is 3 .
The middle term is, -2x its coefficient is -2 .
The last term, "the constant", is -1
Step-1 : Multiply the coefficient of the first term by the constant 3 • -1 = -3
Step-2 : Find two factors of -3 whose sum equals the coefficient of the middle term, which is -2 .
-3 + 1 = -2 That's it
Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -3 and 1
3x2 - 3x + 1x - 1
Step-4 : Add up the first 2 terms, pulling out like factors :
3x • (x-1)
Add up the last 2 terms, pulling out common factors :
1 • (x-1)
Step-5 : Add up the four terms of step 4 :
(3x+1) • (x-1)
Which is the desired factorization
Final result :
5xy2 • (x - 1) • (3x + 1)
Maria is starting a small DVD business online. She makes $3 on each DVD she sells. To start her business though, she had to invest $750. How many DVDs does she need to sell before she starts to make a profit?
Answer:
750 divided by 3. Equals 250
Step-by-step explanation:
If it says how much is needed and it gives the amount the person has, you will need to divide.
(DUE TODAY) Paul wants to build this model with clay, but he does not know how much clay to purchase. Draw a line to separate the model into two rectangular prisms. Then write an expression for the volume of the model. What is the volume?
Answer:
first draw a horizontal line through the middle, (you prob know where)
top prism: 5x4x5
bottom prism: 9x5x3
volume: 5x4x5+ 9x5x3
=235cm²
Step-by-step explanation:
There you go, hope this helps!
Through: (1,-4) and (-3,1)
Answer:
of a slope?
Step-by-step explanation:
what is the shape and direction of f(x)=(x+7)(x+11)
Given:
The function is
[tex]f(x)=(x+7)(x+11)[/tex]
To find:
The shape and direction of the given function.
Solution:
We have,
[tex]f(x)=(x+7)(x+11)[/tex]
It can be written as
[tex]f(x)=x^2+11x+7x+77[/tex]
[tex]f(x)=x^2+18x+77[/tex]
It is a quadratic function and the power of [tex]x[/tex] is 2 so the graph of this function is a vertical parabola.
The leading coefficient is positive so the parabola opens upward.
Therefore, the given function is a vertical parabola that opens upward.
No solution is the answer when both lines have the same slope with a different y-
intercept.
o True
o False
Look at the picture.
Thank u!
Graph x > -2. PLEASE HELP!!!!!
Answer:
x > -2
Step-by-step explanation:
B/c the sign is > it will be an open circle
B/c the sign is > it will be an infinity line
Also, use math-way, it'll help u with everything
If the area of a rectangle is (15x2 - 16x - 15) square feet, and its length is (3x - 5) feet, find its width
Answer:
255
Step-by-step explanation:
(15x2 - 16x - 15) = 270
(3- 5) = -15
270
- -15
= 255
The breadth of the rectangle is (-5x-3).
Area of rectangleThe area of a rectangle is given as the product of its length to its breadth.
[tex]\rm{Area\ of\ Rectangle = Length \times breadth\\[/tex]
Given to usarea of a rectangle = (15x2 - 16x - 15)
length = (3x - 5)
Width[tex]Area\ of\ Rectangle = Length \times breadth\\(15x^2-16x-15)=(3x-5)\times breadth\\\\(3x-5)\times breadth=(15x^2-16x-15)\\\\breadth = \dfrac{(15x^2-16x-15)}{(3x-5)}\\\\breadth = (-5x-3)[/tex]
Hence, the breadth of the rectangle is (-5x-3).
Learn more about Rectangles:
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What is the answer to 14v+6=2(5+7v)
Answer:
0=4
Step-by-step explanation:
14v+6=2(5+7v)
14v+6=10+14v
6=10
0=4
7.
Judy can decorate 3 cakes in 5 hours. Which graph has a slope that best represents the
number of cakes per hour Judy can decorate?
A
Cake Decorating
Cake Decorating
Number of Cakes
30
27
24
21
18
15
12
Number of Cakes
30
27
24
8 21
18
15
12
9
G
3
0 1 2 3 4 5 6 7 8 9 10
Time (hours)
0 1 2 3 4 5 6 7 8 9 10
Time (hours)
B
Cake Decorating
D
Cake Decorating
y
30
2
30
27
24
21
Number of Cakes
200
18
15
Number of Cakes
19
Answer:
B
Step-by-step explanation:
is the one that shows how many cakes were made in an hour
hour is 60 minutes so u will divide 60 by 3 it equal to 20
it means they make 20 cakes in 1hour
Is 2.8 greater than or less than 2.78? Pls answer
5/8 62.5/100 as a ratio (simplified)
Answer:
5:8, 25:1
Step-by-step explanation:
i guess this is ans
which expression would be easier to simplify if you used the commutative property to change the order of the numbers
Answer:
The answer is C
Step-by-step explanation:
if you get it right and you are the first one than i will give you all stars and thanks and a crown but if you are just right then only the stars and the thanks
Answer:
Periodic Table
Step-by-step explanation:
? that should be it.
y=3x-4 slope intercept form
Answer:the slope is 3 and the y intercept is -4
Step-by-step explanation:
During a guided tour of Sindrow Castle, a group of tourists climbed to the top of Fineview Tower.
At the top, the guide asked the six children in the group to guess how many steps they had
climbed. Their guesses were 155, 157, 167, 168, 179 and 183.
The guide revealed that the closest guess was only 3 more or less than the correct number and
that two of the other guesses were no more than 10 away.
How many steps had they climbed?
A 160
B 164
C 171
D 176
Answer:
C
Step-by-step explanation:
PLEASE ANSWER ASAP WITH SHOWN WORK FOR BRAINLEST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
im so confused
Answer:
A) 216 in²
Step-by-step explanation:
2(1/2)(6)(4)=24
2x5x12=120
6x12=72
24+120+72=216
Hey guys can someone help me out?
Answer: yes with what
Step-by-step explanation:
State whether each pair of expressions are equivalent. Show your work.
4(5 + g) + 8(4g + 3 i NEED HELP
Answer:
36g + 44
Step-by-step explanation
20+4g+8(4g+3) =
8(4g+3) : 32g + 24 =
20+4g+32g+24 =
20+4g+32g+24 = 36g + 44
I hope this helps you! Have a great day :)
[tex]18 - 4 \div {2}^{2} \times 10[/tex]
whats the answer
Select all the multiples of the number 3
Subtract -4 and -11 with the help of number line. pls answer as soon as possible pls
Answer:
7
Step-by-step explanation:
-4 - -11 = 7
remember negative + or - equals a positive same way with a positive + or - positive will give you a positive.
Tonya has 39 packages. Each package weighs 6 pounds. Choose the best estimate of the total weight of the packages.
Step-by-step explanation:
If were estimating, 39 is pretty close to 40 and 40x6 is 240 pounds. if we are getting exact about it, then 234 pounds
Can someone help me with my homeworkkk
Answer:
1. they're vertical angles but the The missing angle is 140
2. there's no relationship being displayed because there's no image
3 theyre vertical angles
4 is 51
5 is 41
6 is 59
Step-by-step explanation:
All you need to do to find the missing angles is subtract from whatever. so the first one is a straight line so all you would do is 180-40 for the one that kind of looks like an x just know they're going to be the same angle when they're like that and for number four you can see it's a 90° angle so you subtract 90 - 39 so that you can get the answer that way
Help me solve this 9(n + 2) n = 1/4 the choices are A. 3 B. 9 C. 10 D. 19
Answer:
d
Step-by-step explanation:
How do you write 0.00000058 in scientific notation
Answer:
5.8 x 10^-7
Step-by-step explanation:
Answer:
5.8 * [tex]10^{-7}[/tex]
Step-by-step explanation:
Move the decimal so there is one n zero digit to the left of the decimal point. The number of decimal places you moved will be the exponent on the 10. If the decimal moves to the right, the exponent will be negative. If it moves to the left, the exponents will be positive.
You spin the spinner twice.
8
7
What is the probability of landing on an 8 and then landing on a 7?
Write your answer as a fraction or whole number.
two over four is the probability that you will land on seven or eight
Answer:
P( landing an an 8 then on a 7 ) = 1/ 16
What is a Probability?
Its is the branch of mathematics concerning numerical description of how likely an event is to occur .
P( landing an an 8 then on a 7 ) = P ( landing on an 8) * P ( landing on a 7 )
P(Landing on an 8) = 1/4
P(Landing on an 7) = 1/4
P = 1/4 * 1/4
P= 1 / 16
Learn more about Probability:
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Over the summer, Teagan and Maya read a total of 36 books. Teagan reads three times as many books as Maya. How many books does each girl read?
12 to the 3rd power divided by 12 to the 7th power
Answer:
0.000048..............
Answer:
0.00004822
Step-by-step explanation:
12^7= 35,831,808
12^3= 1728
A tissue box has a base of 36 in2 ? and is 5 inches tall. What is the volume of the tissue box?
Answer:
180 [tex]in^{2}[/tex]
Step-by-step explanation:
36 times 5 = 180
Answer: the value is 90
Step-by-step explanation: