Answer:
y = 3/4x -2
Step-by-step explanation:
Points on the graph: (4, 1) and (0, -2)
Slope:
m=(y2-y1)/(x2-x1)
m= (-2-1)/0-4)
m=(-3)/(-4)
m = 3/4
Point-slope:
y - y1 = m(x - x1)
y - 1 = 3/4(x - 4)
y - 1 = 3/4x - 3
y = 3/4x -2
for the system of equations below what number do we need to multiply one of the equations by to eliminate one of the variables
3x - 4y=-4
5x-4y=12
Answer:
the answer is -1
Step-by-step explanation:
if you multiply the first equation by -1, you get this:
-3x + 4y = 4
and then you can add that to the second equation and eliminate y
2x + 0y = 16
A soft-drink machine is regulated so that the amount of drink dispensed is approximately normally distributed with known standard deviation, sigma. Given a random sample of n drinks and the sample mean, x-bar, you find a 90% confidence interval for the mean of all drinks dispensed by this machine. Then you calculate a 90% confidence interval (same confidence level) using a larger sample, for example (n 20) drinks. Also, you notice that the sample mean, x-bar, is the same for both samples.
Required:
Was this a reasonable decision?
Answer:
This is a reasonable decision because the sample size has no effect on the 90% confidence interval
Step-by-step explanation:
90% confidence interval
larger sample size = 20
condition : sample mean ( x-bar ) is the same for both samples
This is a reasonable decision because the sample size has no effect on the 90% confidence interval
from condition 1 :
Amount of drink dispensed is normally distributed with known standard deviation , given a random sample of n drinks and the sample mean at a confidence interval of 90%
for condition 2 :
sample size = 20
mean = 2.25 ( assumed value )
std = 0.15 ( assumed value )
Z = 1.645 ( Z-value )
determine the 90% confidence interval
= mean ± z [tex]\frac{std}{\sqrt{n} }[/tex]
= 2.25 ± 1.645 [tex]\frac{0.15}{\sqrt{20} }[/tex]
= 2.25 ± 0.0335 = ( 2.2835 , 2.2165 )
so this is drag and drop the box on the left will be counted the first box so pls no scams
Answer:
[tex]\Huge\boxed{x<-\frac{1}{4}}[/tex]
Step-by-step explanation:
Hello there!
The first thing we want to do is find the least common denominator which would be 20
so we multiply the denominator and numerator of the fractions on the left side by 4
3x4=12
5x4=20 -12/20x
1x4=4
5x4=20 so now we would have
[tex]-\frac{12}{20}x+\frac{4}{20} >\frac{7}{20}[/tex]
once again we want to isolate the variable using inverse operations
to get rid of the 4/20 we subtract each side by 4/20
[tex]\frac{7}{20} -\frac{4}{20} =\frac{3}{20}[/tex]
now we have
[tex]-\frac{12}{20} x>\frac{3}{10}[/tex]
now we want to get rid of the -12/20
to do so we divide each side by -12/20 (or -.6 as a decimal to make it easier)
[tex]\frac{3/20}{-.25}=-\frac{1}{4}[/tex]
REMEMBER flip the equality sign
we're left with
[tex]x<-\frac{1}{4}[/tex]
Answer:
Give me Point plssss anwer you
Question 3 of 10
You roll two number cubes.
Let event A = You roll an even number on the first cube.
Let event B = You roll a 4 on the second cube.
Are the events independent or dependent? Why?
A. Independent, because the outcome of the first roll doesn't affect
the outcome of the second roll.
B. Independent, because they have no outcomes in common.
C. Dependent, because both cubes have six sides.
D. Dependent, because 4 is an even number.
Answer:
D
Step-by-step explanation:
They are both even numbers the 4 is seperated into 2,2 and if 4 is an even and event A is even it would be dependent
total of 342 tickets were sold for school play. They were either adults tickets or student tickets. The number of student tickets sold was two times the number of adult tickets sold. How many adult tickets were sold?
Answer:
684 I think ?!
Step-by-step explanation:
Answer: 114 adult tickets were sold.
Step-by-step explanation:
Let student tickets be represented as 2t (since twice the amount of student tickets were sold)
and let t represent the amount of adult tickets.
Solve for t (number of tickets)
342= 2t + t. Combine like terms.
342= 3t. Divide both sides by 3.
114=t
114 adult tickets were sold.
Substitute 114 for t to find student tickets.
2(114)= 228 student tickets were sold.
WILL GIVE BRAINLIEST!!
Find the area of a regular pentagon with a radius of 32 to the nearest integer.
Answer:
2435 units
Step-by-step explanation:
(4/2)4 + (1 + 3)?
I really need help!
[tex]\huge\text{Hey there!}[/tex]
[tex]\large\text{Just do PEMDAS}[/tex]
[tex]\large\text{Parentheses}[/tex]
[tex]\large\text{Exponents}[/tex]
[tex]\large\text{Multiplication}[/tex]
[tex]\large\text{Division}[/tex]
[tex]\large\text{Addition}[/tex]
[tex]\large\text{Subtraction}[/tex]
[tex]\mathsf{(\dfrac{4}{2})(4) + (1+3)}[/tex]
[tex]\mathsf{\dfrac{4}{2} = 2}[/tex]
[tex]\mathsf{2(4) + (1 + 3)}[/tex]
[tex]\mathsf{2(4) = 8}[/tex]
[tex]\mathsf{8 + (1 + 3)}[/tex]
[tex]\mathsf{1 + 3 = 4}[/tex]
[tex]\mathsf{8 + 4 = 12}[/tex]
[tex]\boxed{\boxed{\large\text{Answer: \bf \huge12 }}}\huge\checkmark[/tex]
[tex]\text{Good luck on your assignment and enjoy your day! }[/tex]
~[tex]\frak{Amphitrite1040:)}[/tex]
wuestions
(a) An angle measures 51°. What is the measure of its supplement?
(b) An angle measures 27°. What is the measure of its complement?
Answer:
a - 129
b - 63
Step-by-step explanation:
for a - supplementary angles add up to equal 180
so to find the measure of its supplement we subtract the given angle from 180 180-51=129
so the measure of a supplement angle is 129
for b - complementary angle add up to equal 90
so to finds the measure of its complement we subtract the given angle from 90
90-27=63
so the measure of its complement is 63
Answer:
(a) An angle measures 51°. the measure of its supplement=180-51=129°
b) An angle measures 27°. the measure of its complement=90-27=63°
Solve the following equation. Then place the correct number in the box provided.
Answer:
x ≤ 6
Step-by-step explanation:
2x-1 ≤ x+5
Subtract x from each side
2x-x-1 ≤ x-x+5
x-1 ≤ 5
Add 1 to each side
x-1+1 ≤ 5+1
x ≤ 6
5x3 + 9x² - 13x - 2
As x approaches --, f(x) approaches
As x approaches +o, f(x) approaches
9514 1404 393
Answer:
(x, y) → (-∞, -∞), (+∞, +∞)
Step-by-step explanation:
The expression is of odd degree with a positive leading coefficient. It will have a generally upward slope (/). That is, the sign of f(x) will match the sign of x for large-magnitude values of x:
x → -∞, f(x) → -∞
x → ∞, f(x) → ∞
I need help with this.
9514 1404 393
Answer:
6/(2+k)
Step-by-step explanation:
The change of base formula is ...
[tex]\log_a(b)=\dfrac{\log(b)}{\log(a)}[/tex]
Using this, we can take the logarithm base 2 in the change of base formula for the given expression.
[tex]\log_{20}(64)=\dfrac{\log_2(64)}{\log_2(20)}=\dfrac{\log_2(2^6)}{\log_2(2^2\cdot5)}\\\\=\dfrac{6}{\log_2(2^2)+\log_2(5)}=\boxed{\dfrac{6}{2+k}}[/tex]
__
In addition to the change of base formula, the usual rules of logarithms apply.
[tex]a^b=m\ \longleftrightarrow \ \log_a(m)=b\\\log(ab)=\log(a)+\log(b)[/tex]
I am trying to solve this but I don't understand.
Answer:
a = 42 b = 21
Step-by-step explanation:
a is 42 since it ks vertically opposite 42
To solve for b
360 - (42×2)........to get the angle next to a
=276... Divde answer by 2. Bc there are two of the angles
276÷2 =138
138 + 2b =180
2b = 180 - 138
b = 42 ÷ 2
b = 21
How do you define your role regarding climate change? What do you feel your responsibilities are?
Answer/Step-by-step explanation:
1. Humans are the cause of climate change so us humans would be the major factor of it causing us to be the ones to stop it or slow it down.
2. To stop polluting, recycle, take care of our environment, etc.
Hope this helps :)
Given the equitation 3x+6x=30. What is the slope and y intercept.
Answer:
slope-5/3-1 2/3
y-intercept=-2
Step-by-step explanation:
hope that helps if correct please mark as brainliest thank you
19NBoli
Find Cecilia’s average monthly income if her biweekly take-home pay is $764.00. Help please. Will give braineliest
please give me the answer
Math hard
Question: Which of the following number sentences is an example of the commutation property of multiplication?
A:27+3=3+27
B:4x5=10x2
C:18x1=1x18
D:2x(9x14)=(2x9)x14
Answer:
C:18x1=1x18
when multiplying 2 numbers, the result is the same in either order.
Need help with this please. Let f(x)= Sin x
Answer:
π/6 and 5π/6
Step-by-step explanation:
Graphing the equation or using a unit circle, we can find these values out pretty easily
what is the answer for this? Select all the fractions that are equivalent to 45. Use the area models to help.
Answer: bro you have to submit a picture or some more information baceuse nobody will be able to answer your question with only one number (45)
Step-by-step explanation:
the average of 3, 5, 15 and my number is 40. what is my number.
Answer:
137
Step-by-step explanation:
(3 + 5 + 15 + x)/4 = 40
23 + x = 160
x = 137
Solve each inequality.
1. 5x + 2 <17
Answer:
x<3
Step-by-step explanation:
5x+2<17
Subtract 2 from both sides.
5x<17−2
Subtract 2 from 17 to get 15.
5x<15
Divide both sides by 5. Since 5 is positive, the inequality direction remains the same.
x=15/5
Divide 15 by 5 to get 3.
x<3
Graph the solution set of the inequality 1/2y < -3
Answer:
y < − 6 ?
Step-by-step explanation:
Its a straight line on graph so it's linear
Answer:
w
Step-by-step explanation:
choose the scatter plot in which the outlier is highlighted
Answer:
its the second graph top right
Step-by-step explanation:
an outlier is a point that deviates from the rest
The image below shows four soccer balls at different
locations on an uneven soccer field. Which ball has the
greatest amount of kinetic energy? Explain your answer.
Answer: letter d
Step-by-step explanation:
Answer:
Ball D. Among the four balls in this picture, ball D is the only one whose kinetic energy is greater than [tex]0[/tex].
Step-by-step explanation:
Consider an object of mass [tex]m[/tex]. If this object is moving at a speed of [tex]v[/tex], the kinetic energy of this object would be:
[tex]\displaystyle \frac{1}{2}\, m \cdot v^{2}[/tex].
The speed [tex]v[/tex] of ball A, B, and C are all [tex]0[/tex]. Hence, the kinetic energy of these three balls would be [tex]0\![/tex].
The speed of ball D is greater than [tex]0[/tex]: [tex]v = 2\; \rm m \cdot s^{-1}[/tex]. The kinetic energy of this ball would be:
[tex]\begin{aligned} {\rm KE} &= \frac{1}{2}\, m \cdot v^{2} \\ &= \frac{1}{2}\times \rm 0.43\; \rm kg \times \left(2\; \rm m \cdot s^{-1}\right)^{2}\\ &= 0.86\; \rm J\end{aligned}[/tex].
Hence, the kinetic energy of ball D is the greatest among the four balls in this picture.
Triangle KLM is similar to triangle NOP. Find the measure of side NO. Round your
answer to the nearest tenth if necessary.
M
P Р
O
1
23
51.6
38
N
Answer:
[tex]NO= 31.2[/tex]
Step-by-step explanation:
See attachment for triangle
From the attachment, we have:
[tex]KL = 51.6[/tex]
[tex]LM= 38[/tex]
[tex]OP = 23[/tex]
Required
Find NO
This will be calculated using the following equivalent ratios:
[tex]NO : OP = KL : LM[/tex]
This gives:
[tex]NO : 23= 51.6: 38[/tex]
Express as fraction
[tex]\frac{NO }{ 23}= \frac{51.6}{ 38}[/tex]
Make NO the subject
[tex]NO= \frac{51.6}{ 38} * 23[/tex]
[tex]NO= \frac{51.6* 23}{ 38}[/tex]
[tex]NO= \frac{1186.8}{ 38}[/tex]
[tex]NO= 31.2[/tex] --- approximated
Answer:
x≈ 16.9
Step-by-step explanation:
Use the given scale factor and the side lengths of the scale drawing to
determine the side lengths of the real object.
Scale factor: 4:1
10 in
6 in
b
8 in
Scale drawing
Object
A. Side a is 10 inches long, side bis 12 inches long, and side cis 14
inches long
B. Side a is 2 inches long, side bis 4 inches long, and side c is 6
inches long.
O
C. Side a is 24 inches long, side bis 32 inches long, and side cis 40
inches long.
d
D. Side a is 1.5 inches long, side bis 2 inches long, and side c is 2.5
inches long
Answer:
D for sure
Step-by-step explanation:
i dont know if you have time for this so i explain it in the comments if you need it
Answer:
the answer is D
Step-by-step explanation:
Find the value of the expression below pls help
Answer:
D 1/16
Step-by-step explanation:
(1/2)^4=.0625
.0625= 1/16
Mr. Brown purchased tires for his car. The tires were $75 each, including tax, plus $10 for installation. Mr. Brown paid $160 for the tires and installation. Which equation can be used to find the number of tires, t, Mr. Brown purchased?
A. t = 160 + 75(10)
B. 75 + t(10) = 160
C. 75t + 10 = 160
D. 160t – 75 = 10
Answer:
C. 75t + 10 = 160
Step-by-step explanation:
Given that
The tire was $75 each
also there is a $10 for installation charges
For both he paid $160
Now based on the above equaton
The equation that applied to determine the number of tires i.e. t is
75t + 10 = 160
help me and i givee points give me correct answer
Answers:
Fractions A
Red flower fraction== 40/100
Purple flower fraction=47/100
Trees fraction=7/100
Decimals
Orange flower decimal=0.06
Trees decimal=0.07
Percents
Red flower percent=40%
Orange flower percent=6%
Purple flower percent=47%
Ask for help when you need it, I'm here until 2:30
I hope this helps!
If you need more help, don't hesitate to ask!
May I have brainliest, please?
Which triangles are congruent according to the SAS criterion?
M
A
E
B
R
N
OA.
A ABC and ALMN
OB.
ALMN and AFGE
O C.
ALMN, AFGE, and A POR
OD
AFGE and A POR
O E.
ABC AFGE, and A POR
Answer:
What u have done is correct its E. ABC, FFE and PQR.
Hope this helps
Hope this helps ALL THE BEST!!
The ΔABC, ΔFGE, and ΔPQR are congruent by SAS criterion.
Option D is the correct answer.
What is triangle congruency?There are ways to prove that two triangles are congruent.
- Side-Side-Side (SSS) Congruence.
The three sides of one triangle are equal to the corresponding three sides of another triangle.
- Side-Angle-Side (SAS) Congruence.
The two sides and the included angle of one triangle are equal to the corresponding two sides and included angle of another triangle.
- Angle-Side-Angle (ASA) Congruence.
The two angles and the included side of one triangle are equal to the corresponding two angles and included side of another triangle.
- Angle-Angle-Side (AAS) Congruence.
We have,
Side-Angle-Side (SAS) Congruence.
The two sides and the included angle of one triangle are equal to the corresponding two sides and included angle of another triangle.
So,
The ΔABC, ΔFGE, and ΔPQR are congruent since there is a congruent angle between the corresponding equal sides in all three triangles.
Thus,
The ΔABC, ΔFGE, and ΔPQR are congruent by SAS.
Learn more about triangle congruency here:
https://brainly.com/question/12413243
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