Step-by-step explanation:
¿Puedes decirnos las ecuaciones?
Which of the following is the correct factorization of the polynomial below? 64x^3+27
A) (16x+8)(3x^2-12x+9)
B) (4x+3)(16x^2-12x+9)
C) (3x^2+4)(3x-16x+16)
D) The Polynomial is irreducible
Answer:
B) (4x+3)(16x²-12x+9)
Jill buys a t-shirt for $12.79 and a pair of socks for $6.75 at the mall. How much did she spend?
Kate can go home from work by either train, bus or by car. The probability that she will go home by train is 0.4 and by bus is 0.3. What is the probability that she will go home by car?
Step-by-step explanation:
0.4+0.3=0.7
3-0.7
=2.3%
mark me brainliest pls!!
Find the next term in the geometric sequence if the first term is 8 and the common ratio = 2.
Answer:
16
Step-by-step explanation:
If you start with 8 and the common ratio is 2, all you would do is 8*2 which is 16. Hope this helps!!
19 < -3(b+8)+1 solve for b
Answer:
b = -14
Step-by-step explanation:
Big points please be a good human and help A fish swims 4 feet directly above a scuba diver. The fish suddenly dives to double its depth under the surface of the ocean. The fish dives to a depth of −34 feet.
What is the position of the scuba diver relative to sea level?
Choose from the drop-down menu to correctly complete the statement.
The scuba diver is
______feet below the sea level
Answer:
The scuba diver is 21 feet below sea level
Step-by-step explanation:
I took the test
give brainliest if this is right please
I'd really appreciate it
What is 8/13? I am using a calculator and My form still says that it's wrong.
how many anwsers do you have to miss to master in a math test
Answer:
It depends
Step-by-step explanation:
It depends on how many problems are in the test. If the test has a standard amount of ten questions, you can only miss one question if you want to get a solid 90%. If the test has twenty questions, you can miss two to get that 90%.
If you're going for an 80% (or B), you can miss two on a ten-question test and four on a twenty-question test.
Again, it all depends on the number of questions and what percentage you want to get on the test.
Amy will rent a car for the weekend. She can choose one of two plans. The first plan has no initial fee but costs $0.90 per mile driven. The second plan has an initial fee of $75 and costs an additional $0.80 per mile driven. How many miles would Amy need to drive for the two plans to cost the same?
Answer:
Our two formulas for each plan:
50 (base fee) + .80x (cost per mile) = y (total cost)
.90x (cost per mile) = y (total cost)
We want to find how many miles we have to drive, so solve for x. We're going to plug in y (from equation 2) into the value for y. This is the substitution method.
50+.80x=y
Plugin: 50+.80x = .90x
Add .90x to each side, subtract 50 from each side: .80x -.90x = -50
Simplify: -.10x = -50
Divide: x = -50/-.10 (two negatives make a positive)
x = 500
So this tells us that she has to drive 500 miles to make the plans equal. Let's verify this by plugging in the value we found for x.
499 miles, plan 2 is cheaper.
50 + .80(499) = 449.20
.90(499) = 449.1
500 miles, they are equal
50 + .80(500) = 450
.90(500) = 450
501 miles, plan 1 is cheaper
50 + .80(501) = 450.8
.90(501) = 450.9
Not my work.
Answer:
750mi
Step-by-step explanation:
x = how many miles
75+0.8x=0.9x
Move all terms containing x to the left side of the equation.
75−0.1x=0
Subtract 75 from both sides of the equation.
−0.1x=−75
Divide each term in −0.1x=−75 by −0.1 and simplify.
x=750
When the domain is restricted, you can pick any value to substitute in for the
independent variable.
True
O False
Answer:Therefore, the domain is restricted to non-negative values of x so that the function values will be defined. The variable x is often referred to as the independent variable, while the variable y is referred to as the dependent variable
Step-by-step explanation:
What is (-i)³?
Correct answer gets pinned.
Answer:
D
Step-by-step explanation:
Answer:
D. i
Step-by-step explanation:
When putting i to a power, there is a rule.
i¹ = i
i² = -1
i³ = -i
i⁴ = 1
And it repeats again, such as:
i⁵ = i
i⁶ = -1
And so forth.
This rule also applies to -i, but the values are slightly different:
(-i)¹ = -i
(-i)² = -1
(-i)³ = i
(-i)⁴ = 1
And that one keeps repeating such as
(-i)⁵ = -i
(-i)⁶ = -1
And so forth.
So to answer your question, (-i)³ = i.
Use the distributive property to remove the parentheses. -6(5y-2u-3)
by multiplying each term in the parentheses by the term outside
-6(5y-2u-3) = (-6 × 5y) + (-6 × - 2u) + (-6 × -3)
= -30y + 12u + 18
Help pleasee last question
Answer:
1/5
Step-by-step explanation:
it appears as those two distinct points on the graph are (-3,1) and (2,2)
so take the difference of the y-values and put it over the difference of the x-values to get a fraction to represent the slope
2-1 / 2-(-3) = 1/5
if you start from the point (-3,1) you must rise by one unit and then run five units to the right to get to (2,2)
A solid metal sphere with diameter 10cm needs to be covered with a protective material which costs £0.29 per cm2. How much will it cost to cover the sphere with the material? Give your answer rounded to 2 DP.
Answer:
1083.45
Step-by-step explanation:
Diameter = 2r
Radius = 5cm because the diameter is 10.
4 pie r^2 is the surface area. = 314.2.
314.2/0.29 = 1083.45 Pounds
How do i find the slope
Answer:
y=1/2x
Step-by-step explanation:
Its a positive slope so you go up 2 then right 4
Answer:
slope = [tex]\frac{1}{2}[/tex]
Step-by-step explanation:
Calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (6, 3) ← 2 points on the line
m = [tex]\frac{3-0}{6-0}[/tex] = [tex]\frac{3}{6}[/tex] = [tex]\frac{1}{2}[/tex]
the sun of two numbers is 59 and the difference is 15. what are the numbers?
Answer:
1st number: 37
2nd number: 22
Step-by-step explanation:
let n = 1st number
let n-15 = 2nd number
n+(n-15)=59
collect like terms: 2n-15=59
add 15 to both sides
2n=74
divide both sides by 2
n=37
n-15=22
Solve the absolute value equations algebraically
|m+4|+7=11
Answer:
m=0,-8
Step-by-step explanation:
Rearrange this Absolute Value Equation
|m+4|+7 = 11
Another term is moved / added to the right hand side.
|m+4| = 4 STEP 2:
Clear the Absolute Value Bars
The Absolute Value term is |m+4|
For the Negative case we'll use -(m+4)
For the Positive case we'll use (m+4)
STEP3:Solve the Negative Case
-(m+4) = 4
Multiply
-m-4 = 4
Rearrange and Add up
-m = 8 Multiply both sides by (-1)
m = -8
Which is the solution for the Negative Case
STEP4:Solve the Positive Case
(m+4) = 4
Rearrange and Add up
m = 0
Which is the solution for the Positive Case
STEP5:
Wrap up the solution
m=-8
m=0
Solutions on the Number Line
Two solutions were found :
m=0,M=-8
For 4 weeks, William volunteered as a helper for swimming classes. The first week, he volunteered for 8 hours. He volunteered for 12 hours in the second week, and another 12 hours in the third week. The fourth week, he volunteered for 9 hours. For how many hours did he volunteer per week, on average? (write a sentence answer)
Answer:
He volunteered 10 hrs 15 min on average.
Step-by-step explanation:
The first week: 8 hrs
The second week: 12 hrs
The third week: 12 hrs
The fourth week: 9 hrs
8 + 12 + 12 + 9 = 41 hrs total
41 hours/4 weeks = 10.25 hrs (10 hrs 15 min)
Answer: 10.25 hours/week (On average, William volunteered 10.25 hours per week during these four weeks)
Step-by-step explanation:
To find an average, you need to add up each entity:
8+12+12+9=41
After that, you divide that number by n (the number of weeks)
41/4=10.25 hours
Question : The expression tan 50 - tan 20/ 1+ tan 50 tan 20 is equal to
Answers: Pick one
tan30
tan70
tan100
Answer:
47.15 if it needs to be rounded to the nearest tenth it would be 47.2
Step-by-step explanation:
I hope this helps
The value of the expression is tan 30.
Option A is the correct answer.
What is an expression?An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.
Example: 2 + 3x + 4y = 7 is an expression.
We have,
We know that,
tan (x - y) = (tan x - tan y) / (1 + tanx tany)
So,
(tan 50 - tan 20)/(1 + tan 50 tan 20)
This can be written as,
= tan (50 - 20)
= tan 30
Thus,
The expression value is tan 30.
Learn more about expressions here:
https://brainly.com/question/3118662
#SPJ2
Put these fractions in order from least to greatest: 2/3 1/4 and 3/8 (please hurry lol)
Answer:
1/4, 3/8, 2/3
Step-by-step explanation:
Answer:
1/4. 3/8. 2/3
Step-by-step explanation:
1/4, 3/8 and 2/3
Solve each quadratic inequality then test their interval of the inequality.
1. x² - x - 20 > 0
2. x² - 2x - 11 < 0
3. x²+ 9x + 14 > 0
4. r² - 10r + 16 > 0
Answer:
Step-by-step explanation:
1) x² -x - 20 > 0
x² - 5x + 4x - 20 > 0
x( x - 5) + 4(x - 5) > 0
(x - 5)(x + 4) > 0
x - 5 > 0 ; x + 4> 0
x > 5 ; x < -4
3) x² + 9x + 14 > 0
x² + 7x + 2x + 14 > 0
x(x + 7) + 2(x + 7) > 0
(x + 7) (x + 2) > 0
x < - 7 and x > -2
4) r² - 10r + 16 > 0
r² - 8r -2r + 16 > 0
r(r - 8) - 2(r - 8) > 0
(r - 8)(r - 2) > 0
r < 2 ; r > 8
Please help me with this. I don't get it.
Answer:
What does the red point represent?
After 6 hours of driving, you are 276 miles away from home
Slope is 46
690 miles away after home in 15 hours
Step-by-step explanation:
(0,0)(2,92)
x, y x, y
y1-y2
x1-x2
0-92
0-2
46
10(46)+5(46)=15(46)
15(46)=690
What is the solution set for this inequality? −6x + 30 < −18
Question 4 options:
x < -2
x > 8
x < 8
x > -2
Answer:
B. X > 8
Step-by-step explanation:
when dividing a negative denominator, you are flipping the sign. if the denominator doesn't have a negative sign, the sign isn't flipped.
steps:
subtract 30 by -18.
Soon you receive -48. Divide that by -6.
The signs soon flip giving you X> 8
Find the value of x.
Answer:
150
Step-by-step explanation:
on the the right all the numbers are 15 greater than the numbers on the left
-NULL
Brainliest will be appreciated thank you!
HELPPPP MEEE PLSSSS IM BEGGING SOMEONEEE
Answer:
yes
Step-by-step explanation:
yes
Imagine your class is having a pizza party and you are trying to decide how many pizzas to buy. The Italian Kitchen Pizzeria charges $12.99 (including tax) for a large cheese pizza. Principal Kenny has said that our class had a budget of $115 for our pizza party.
Answer:
8 pizzas for the party
Step-by-step explanation:
The Italian Kitchen Pizzeria charges $12.99
Budget of $115
How many pizzas to buy?
115 / 12.99 ≈ 8.853 pizzas
We can buy 8 pizzas. ( we do not have enough money for a ninth )
A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by the given equation. Using this equation, find the time that the rocket will hit the ground, to the nearest 100th of second. Y=-16x^2+147x+80 y=−16x 2 +147x+80
Answer:
bc...
Step-by-step explanation:
Plz help I need answer asap
Question 1 What is the slope of the line that is represented by the equation y−15=−6(x+7)?
Step-by-step explanation:
Change the equation to the general form [tex]Ax + By + C = 0[/tex].
[tex]y - 15 = - 6(x + 7) \\ y - 15 = - 6x - 42 \\ 6x + y - 15 + 42 = 0 \\ 6x + y + 27 = 0[/tex]
The slope
[tex] = - \frac{A}{B} [/tex]
[tex] = - \frac{6}{1} [/tex]
[tex] = - 6[/tex]
Answer: Slope is -6
Step-by-step explanation:
We want to rearrange the equation to the form of y=mx+b, where m is the slope and b the y-intercept.
y−15=−6(x+7)
y−15=−6x-42
y=−6x-42+15
y = -6x - 27
The slope is -6
What percent of 25 is 10?
10 = x. 25; 40%
10 = x. 25; 250%
25 = x10; 4%
25 = x= 10; 250%
E
Answer:
40
Step-by-step explanation: Make a proportional relationship. Make 25% into a fraction, 25/100. Then make 10 into a fraction using a variable. For example 10/p. Then cross multiply. 100x10=1000. Divide 1000 by 25 and the answer would be 40.
