Solve the system of equations.
2x−9y=14
x=−6y+7
Answers
Answer:{x,y}={7,0}
i hope this is right :)
Step-by-step explanati
Answer:
Step-by-step explanation:
Related Questions
Which function has a range of (-pi/2,pi/2)?
y = Cos-1x
y = Tan-1x
y = Sec-1x
y = Csc-1x
Answers
Answer:
b) y=tan^-1(x)
Step-by-step explanation:
edge 2020
Complete the square to form a true equation
X^2+4x+?=(x+?)^2
Answers
A coin is tossed and number 1-8 is chosen at random. What is the probability of getting tails and a number greater than 3.
Answers
Answer:
5 in 8
Step-by-step explanation:
there is a 5 in 8 chance to get a number greater then 3
about how many 18s are there in 250?a.10 b.12 c.15
Answers
Answer:
C. 15
Step-by-step explanation:
It's 13.888 about 14, so 15 is the closest answer.
b
Step-by-step explanation:
taking 250÷18=13.88~
A farmer harvested 35 acres of corn and 20 acres of beans. Animals ate 18
of the corn he originally planted. How many acres of corn did the farmer plant?
Answers
When playing the lottery game Cash4Life, you must choose a cash ball number from 1 through 4. What is the probability that the randomly drawn cash ball is at least 2?
A. 0.50
B. 0.75
C. 0
D. 0.25
Answers
Answer:
[tex]P(At\ least\ 2) = 0.75[/tex]
Step-by-step explanation:
Given
Balls = 1 to 4
Required
Determine the probability of selecting ball numbered at least 2
Here, we'll assume that all numbers have the same probability.
The probability of each ball will be:
[tex]Probability = \frac{1}{4}[/tex]
So:
[tex]P(At\ least\ 2) = P(2) + P(3) + P(4)[/tex]
Recall that
[tex]Probability = \frac{1}{4}[/tex] --- for each ball
So, the equation becomes
[tex]P(At\ least\ 2) = \frac{1}{4} + \frac{1}{4} + \frac{1}{4}[/tex]
[tex]P(At\ least\ 2) = \frac{3}{4}[/tex]
[tex]P(At\ least\ 2) = 0.75[/tex]
A construction company can remove
1/3 metric tons of dirt from a construction site in 1/6
hours.
What is the unit rate in metric tons per hour?
Answers
Answer:
sorry not having idea about ans
Answer:
A construction company can remove
1/3 metric tons of dirt from a construction site in 1/6
hours.
What is the unit rate in metric tons per hour?
Me too
what is a square of side 8cm
Answers
Answer:
32cm^2
Step-by-step explanation:
8 x 4 = 32
Answer:
Step-by-step explanation:
I am sorry but please give detailed question
25 miles/hour =_meters/minute
Answers
Jared tiene 8 dibujos. Le
regaló algunos a Wendy.
Jared ahora tiene
O dibujos. ¿Cuántos
dibujos le regaló
Jared a Wendy?
Answers
Answer
8.
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
What is the
Slope of this diagram?
Answers
Read the sentences Taxi drivers themselves have to know nearly every street in the city. Paul drove himself around several neighborhoods to learn where the streets are since he wants to become a taxi driver.
Which choice correctly identifies two pronouns from the sentences?
himself (intensive), he (reflexive)
themselves intensive), himself (reflexive)
themselves (reflexive), himself (intensive)
himself (reflexive), he (intensive)
Answers
Answer:
Themselves(intensive) himself(reflexive)
Step-by-step explanation:
The prime factorization of each number is given. List all the factors of each number in prime factorization form.
Example: 110=2∙5∙11. Factors of 110:1, 2, 5, 11, 2∙5, 2∙11, 5·11, 2∙5∙11.
1001=7∙11∙13
Answers
Answer:
1, 7, 11, 13, 7∙11, 7∙13, 11∙13, 7∙11∙13Step-by-step explanation:
Given
1101 = 7∙11∙13Factors of 1101:
1, 7, 11, 13, 7∙11, 7∙13, 11∙13, 7∙11∙13write the slope-intercept form of the equation of each line. (DONT do number 26 )
Answers
b: -1
Equation: -4x-1
27) m: 4
b: 4
Equation: 4x+4
28) m: 5/2 (or in decimals: 2.5)
b: 0
Equation: 5/2x or (2.5x)
Hoped this helped.
Answer:
25) -4, -1
Equation: -4x-1
27) 4, 4
Equation: 4x+4
29) 5/2,0
Equation: 5/2x
Step-by-step explanation:
Y=mx+b
A copy machine can print 48 copies every 4 minutes. A teacher printed 72 copies how long did it take to print
Answers
Answer:
6 minutes
Step-by-step explanation:
72-48 = 24
so 24 + 48 = 72
and 48 / 4=12
which means 12 copies per minute and 24 copies is 2 minutes
(-4)x(4+4-(6-(-10)) ?
Answers
Answer:
28
Step-by-step explanation:
| Why do we need it? | How to use brackets | The basic rules | The complete rules | Using calculators | Quick quiz |
Why do we need an order of operations?
Example: In a room there are 2 teacher's chairs and 3 tables each with 4 chairs for the students. How many chairs are in the room?
We know there are 14, but how do we write this calculation? If we just write
2 + 3 x 4
how does a reader know whether the answer is
2 + 3 = 5, then multiply by 4 to get 20 or
3 x 4 = 12, then 2 + 12 to get 14?
Three friends went out to dinner. Their bill came to $30.00, and
they decided to tip the waitress 20%. How much did they spend
in total?
Answers
Answer:
$36.00
Step-by-step explanation:
There are 2 methods
Method 1: 30*1.20=36
Method 2: 30*.20=6 30*6=36
The surface area of a sphere is π sq.cm.If it's radius is doubled,by how much does its surface area increase?
Answers
Answer:
Doubling the radius of a sphere will increase its surface area 4 times
Step-by-step explanation:
The surface area of a sphere with radius r is given by the formula:
[tex]SA = 4\pi r^2[/tex]
Doubling the radius means: r=> 2r
Putting the new radius the new surface area will be:
[tex]SA_1 = 4\pi (2r)^2\\SA_1 = 4\pi (4r^2)\\SA_1 = 4(4\pi r^2)\\SA_1 = 4(SA)[/tex]
The new surface area with double radius is 4 times of the old surface area with r.
Hence,
Doubling the radius of a sphere will increase its surface area 4 times
Find the polar equivalent of xy=6
Answers
Answer:
[tex]r^2 sin2\theta = 12[/tex]
Step-by-step explanation:
Given
[tex]xy = 6[/tex]
Required
Get polar equivalent
Polar coordinate [tex](r, \theta)[/tex] and rectangular coordinate [tex](x,y)[/tex] are related in such a way that:
[tex]x = rcos\theta[/tex] and [tex]y = rsin\theta[/tex]
So, substitute [tex]x = rcos\theta[/tex] and [tex]y = rsin\theta[/tex] in [tex]xy = 6[/tex]
[tex]rcos\theta * rsin\theta = 6[/tex]
This can be rewritten as:
[tex]r * cos\theta * r * sin\theta = 6[/tex]
Reorder
[tex]r * r * cos\theta * sin\theta = 6[/tex]
[tex]r^2 * cos\theta * sin\theta = 6[/tex]
Multiply both sides by 2
[tex]2 * r^2 * cos\theta * sin\theta = 6 * 2[/tex]
[tex]2 * r^2 * cos\theta * sin\theta = 12[/tex]
Reorder
[tex]r^2 * 2 * cos\theta * sin\theta = 12[/tex]
[tex]r^2 * 2cos\theta sin\theta = 12[/tex]
In trigonometry:
[tex]sin2\theta = 2sin\theta cos\theta = 2cos\theta sin\theta[/tex]
So, the expression becomes
[tex]r^2 * sin2\theta = 12[/tex]
[tex]r^2 sin2\theta = 12[/tex]
Hence, the equivalent of [tex]xy = 6[/tex] is [tex]r^2 sin2\theta = 12[/tex]
Which of the following sets of numbers can be the lengths of the sides of a triangle?
Answers
Answer:
A. 2.6, 8.1, 10.2
Step-by-step explanation:
According to the Triangle Inequality, the sum of any two sides has to be greater than the third side. From those answer choices, only 2.6, 8.1, 10.2 satisfy the Triangle Inequality.
Which of the following would be equivalent to 92.96?
(4 points)
(1.) 9^8/9^7
(2.) 8^2 • 9^7
(3.) 9^10/9^2
(4.) 90
Please help, Thanks
Answers
Answer:
(4.) 90
I think that's the answer
How do you do this question?
Answers
Step-by-step explanation:
A Maclaurin series is a Taylor series that's centered at 0.
f(x) = ∑ₙ₌₀°° f⁽ⁿ⁾(0) / n! xⁿ
If we substitute f⁽ⁿ⁾(0) = (n + 1)!:
f(x) = ∑ₙ₌₀°° (n + 1)! / n! xⁿ
f(x) = ∑ₙ₌₀°° (n + 1) xⁿ
Use ratio test to find the radius of convergence.
lim(n→∞)│aₙ₊₁ / aₙ│< 1
lim(n→∞)│[(n + 2) xⁿ⁺¹] / [(n + 1) xⁿ]│< 1
lim(n→∞)│(n + 2) x / (n + 1)│< 1
│x│< 1
R = 1
After a party there were 2 2/3 pepperoni pizzas and 1 5/6 cheese how many pizzas are left?
Answers
Answer:
4.5
Step-by-step explanation:
2+1=3
2/3+5/6=1.5
3+1.5=4.5
22. Mark is making a small frame in the
shape of an equilateral triangle with the
dimensions shown below. What is the
perimeter of the frame?
Plz Help me
Answers
Answer:
B)9.5
Step-by-step explanation:
Rewrite the function f(x)=-4(x-3)^2+16 in the form f(x)=ax^2+bx+c
Answers
first, simply each term
4x^2-24x+36+16
then add 36 to 16
4x^2-24x+52
Solve the equation -11<-x+2<3
Answers
Answer:
13 > x > -1
Step-by-step explanation:
-11 < -x + 2 < 3
~Subtract 2 both sides
-13 < -x < 1
~Divide -1 to both sides
13 > x > -1
Best of Luck!
Help please! I’ll give brainliest!
Answers
Answer:
i think the answer is B
i am sorry if this is wrong
Step-by-step explanation:
Help due in a bit!
subject: Pythagorean Theorem
Do the following lengths form a right triangle?
Answers
Answer:
alright this is an easy question to do u have to use the Pythagorean theorem which is a²+b²=c²
so put the number of the triangle in this form for #1
Step-by-step explanation:
1.6²+9²=8²
=117=64
2.5²+13²=12²
=194=144
A volleyball team drank 7.5 liters of water during their mat9. How many milliliters of water did the volleyball team drink?
Answers
Answer:
7500 milliliters
Step-by-step explanation:
7.5*1000
What is the slope of the line going through the points (2,5) and (-4,-1)?
Answers
I just answered this question a little while ago.
Have a wonderful day :)
And happy early thanksgiving!!
