Answer:
x = 8
Step-by-step explanation:
3x - 20 = 4
add 20 to both sides
3x - 20 + 20 = 4 + 20
3x = 24
divide both sides by 3
[tex]\frac{3x}{3}[/tex] = [tex]\frac{24}{3}[/tex]
x = 8
How many solutions does the equation 5x + 3x - 4 = 10 have?
A. Zero
B. One
C. Two
D. Infinitely many
Answer:
one solution
Step-by-step explanation:
(work is shows above)
find the slope of the line that passes through these points (2,5) (4,1)
Answer:
slope = - 2
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 ) = (2, 5) and (x₂, y₂ ) = (4, 1)
m = [tex]\frac{1-5}{4-2}[/tex] = [tex]\frac{-4}{2}[/tex] = - 2
The heights of the five starters on the girl's basketball team are 68 in., 64 in., 70 in., 62 in., and 66 in. What is the average height?
Answer:
66 inches
Step-by-step explanation:
The sum of all the numbers divided by the amount of players (330/5) equals 66.
It is impossible to slice a triangular pyramid with a plane and get a quadrilateral cross section.
True
False
Answer:
false
Step-by-step explanation:
Answer:
This question is false.
Step-by-step explanation:
tell me your life story
and perhaps some song recommendations as well
thanks :)
Answer:
I'm still in High School and planning on going to the military after going through and making money for the most part and for song recommendations I would say: Rob Zombie, Alice in Chains, and Guns N' Roses.
Trina and Jessie went on a vacation to Hawaii. Trina went scuba diving and reached an elevation of −85.6 meters, which is below sea level. Jessie went hang-gliding and reached an altitude of 87.9 meters, which is above sea level.
Given :
Trina and Jessie went on a vacation to Hawaii. Trina went scuba diving and reached an elevation of −85.6 meters, which is below sea level.
Jessie went hang-gliding and reached an altitude of 87.9 meters, which is above sea level.
To Find :
The distance between them.
Solution :
Distance between them is :
[tex]D=87.9-(-85.6)\ m\\\\D = 173.5\ m[/tex]
Therefore, maximum distance between them is 173.5 m.
Hence, this is the required solution.
A construction crew will build a new railroad track which passes through the point (8,5) and is parallel to the one
modeled by the line. What equation models the path of the new track?
Answer:
y = [tex]-\frac{2}{9}x+\frac{61}{9}[/tex]
Step-by-step explanation:
Let the equation of the new railroad track passing through the point [tex](x_1,y_1)[/tex] and slope = m₁ is,
[tex]y-y_1=m_1(x-x_1)[/tex]
Slope of the given line = [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]
Slope of the line passing through (-3, 1) and (6, -1) will be,
m₂ = [tex]\frac{1+1}{-3-6}[/tex]
m₂ = [tex]-\frac{2}{9}[/tex]
Since, railroad track and the given line are parallel,
m₁ = m₂ = [tex]-\frac{2}{9}[/tex]
Therefore, equation of the railroad track passing through (8, 5) and slope = [tex]-\frac{2}{9}[/tex] will be,
y - 5 = [tex]-\frac{2}{9}(x-8)[/tex]
y = [tex]-\frac{2}{9}x+\frac{16}{9}+5[/tex]
y = [tex]-\frac{2}{9}x+\frac{61}{9}[/tex]
Answer:
BRAINLIEST PLEASEEEEEE
y-5=-2/9(x-8)
Step-by-step explanation:
I had the exact same question and just kept getting it wrong until it gave me the right one.
Which pair of angles add up to 180 degrees?
Answer: Supplementary Angles. Two Angles are Supplementary when they add up to 180 degrees.
Step-by-step explanation:
PLEASE HELP FAST ILL GIVE BRAINLIEST AJGSAJSJDH 2) Maria Louisa looks at a sequence of shapes and records the number of
vertices in each of the shapes in the sequence. The first shape has 3
vertices, the second shape has 5 vertices, and the third shape has 7
vertices.
If Maria Louisa assumes that the number of vertices in the sequence of
shapes follows the same pattern, how many vertices would she expect the
twenty-first shape to have?
A.
39
B.
41
C.
43
D.
45
Ms. Dantes baked some brownies. She sliced the brownies into four rows of four brownies. Then she cut half of the brownies in two. How many brownies does she have?
Answer:
24
Step-by-step explanation:
16 +8 = 24 I got this answer by 4 X 4 = 16 +8 So Ms.Dantes has 24 brownies now.
A manager purchased a total of 21 coffee mugs and key chains each coffee mug cost $8.50 and each key chain cost $2.75 if the manager spent a total of a $132.50 write and solve the systems of equations
Answer:
21=m+k 8.50m+2.75k=132.50
Step-by-step explanation:
m= mugs
k= key chains
22x7.5 with work I rlly need help
Complete the steps to solve for x.
4
1
7X - 5=
X = 13
4
7*- 5* = 13
Ex
= 13
35
Answer:
45
Step-by-step explanation:
Many people think that a national lobby's successful fight against gun control legislation is reflecting the will of a minority of Americans. A previous random sample of 4000 citizens yielded 2250 who are in favor of gun control legislation. How many citizens would need to be sampled if a 90% confidence interval was desired to estimate the true proportion to within 4%?
Answer:
416
Step-by-step explanation:
Given that:
A previous random sample = 4000
Sample mean = 2250
[tex]\hat p = \dfrac{x}{n}[/tex]
[tex]\hat p = \dfrac{2250}{4000}[/tex]
[tex]\hat p = 0.5625[/tex]
The confidence interval level = 90%
Desired Margin of error E = 0.04
The level of significance at 90% C.I = 1 - 0.90 = 0.10
The critical value [tex]Z_{\alpha/2} = Z_{0.10/2}[/tex]
[tex]\implies Z_{0.05} = 1.645[/tex] ( From the z tables)
[tex]n = \hat p \times (1- \hat p ) \bigg ( \dfrac{z_{0.05}}{E} \bigg)^2[/tex]
[tex]n = 0.5625 \times (1- 0.5625) \bigg ( \dfrac{1.645}{0.04} \bigg)^2[/tex]
[tex]n = 0.5625 \times (0.4375) \bigg ( 41.125 \bigg)^2[/tex]
n = 416.21
Thus, the number of citizens required to be sampled is [tex]\simeq[/tex] 416
Pls waht is 5 + 6 ? ️️
Answer:
11
Step-by-step explanation:
Answer:
The answer is 11.
Step-by-step explanation:
I found this answer due to a simple problem. If Johnny has 6 apples and 5 oranges, how much fruit does he have in total? The answer is 11, because you add the numbers 5 and 6 to get 11.
A skateboarder starting from rest accelerates down a ramp at 2 m/s for 2 s. What is the final speed of the skateboarder
Initial speed of the skateboard (u) = 0 m/s (Starts from rest)
Acceleration of the skateboard (a) = 2 m/s²
Time taken by the skateboard (t) = 2s
By using equation of motion, we get:
[tex] \bf \longrightarrow v = u + at \\ \\ \rm \longrightarrow v = 0 + 2 \times 2 \\ \\ \rm \longrightarrow v = 4 \: m {s}^{ - 1} [/tex]
[tex] \therefore [/tex] Final speed of the skateboard(v) = 4 m/s
Helppppppppp please................ :(
Answer:
D,B,A,
Step-by-step explanation:
Hope that helped
hiii
I think the answers are options a,b&d
HOPE IT HELPS YOU OUT PLEASE MARK IT AS BRAINLIEST AND FOLLOW ME PROMISE YOU TO FOLLOW BACK ON BRAINLY.IN
simplify 8-5
------
8-3
Answer:
The answer is that 8-5 can not be simplified as well as 8-3
Step-by-step explanation:
Write the ratio as a fraction in simplest form.
54 students: 9 chaperones
hope this Will help you!!!! follow me
Answer:
6:1
Step-by-step explanation:
54/9
6:1
At an amusement park only 18 people are allowed on a ride at the same time. There are 157 people waiting in line . How many groups of riders will there be?
Answer:
Step-by-step explanation:9
Determine the margin of error, , for a 99% confidence interval when the sample size is =19 and the sample standard deviation is =10. Give your answer precise to three decimal places. =
Answer:
± 5.919
Step-by-step explanation:
Margin of Error formula = z × standard deviation/√n
Z score for 99% confidence interval = 2.58
n = 19
Standard deviation = 10
Margin of Error = 2.58 × 10/√19
= ± 5.9189259339
Approximately to 3 decimal place = ± 5.919
Sasha purchased paint that will cover 400 square feet per gallon. Sasha needs to paint a 4704-square-foot surface with 2 coats of paint. How many gallons of paint will she
need for this project
11
12
23
24
Answer:
12 gallons of paint
Step-by-step explanation:
Sasha can paint 400 square feet using 1 gallon of paint
If she needs to paint 4,704 square feet, then she will need to purchase 4,704 / 400 = 11.76 gallons of paint. Since she can only purchase paint in whole gallons, she will need to purchase 12 gallons of paint (we have to round up).
Complete the repayment schedule for a $2,400 loan at 12% for 6 months.
Answer:
Thank you and please rate me as brainliest as it will help me to level up
What is the graph of 4x+3y=-24?
what is the value of x? enter your answer in the box
Answer:
I'm not 100% positive that my answer is remotley correct but I would say 25.
Step-by-step explanation:
and if that is you in your profile pic, you are very pretty.
I hope my answer helps!
I need help doings this
Answer:
Either A or C, I'm not quite sure tho
Step-by-step explanation:
The line is on the negative side of the graph
Complete the table of values for this absolute value function. Then use the drawing tool(s) to graph the function. F(x)-2|x+1|-1
Answer:
Please check the explanation!
Step-by-step explanation:
Given the equation
[tex]f\left(x\right)=-2|x+1|-1[/tex]
As some of the absolute rules are:
[tex]\left|a\right|=a,\:a\ge 0[/tex][tex]\:|-a|=a,\:\quad \:a>0[/tex]NOW, let us solve!
Let us substitute all the table values
Putting x = -4
[tex]y=-2\left|-4+1\right|-1[/tex] ∵[tex]\mathrm{Apply\:absolute\:rule}:\quad \left|a\right|=a,\:a\ge 0[/tex]
[tex]y=-6-1[/tex]
[tex]y=-7[/tex]
So, when x = -4, then y = -7
Putting x = -3
[tex]y=-2|-3+1|-1\:[/tex]
[tex]y=-4-1[/tex]
[tex]y=-5[/tex]
when x = -3, then y = -5
Putting x = -2
[tex]y=-2\left|-2+1\right|-1[/tex]
[tex]y=-2-1[/tex]
[tex]y=-3[/tex]
when x = -2, then y = -3
Putting x = -1
[tex]y=-2\left|-1+1\right|-1[/tex]
[tex]y=-0-1[/tex]
[tex]y=-1[/tex]
when x = -1, then y = -1
Putting x = 0
[tex]y=-2\left|0+1\right|-1[/tex]
[tex]y=-2-1[/tex]
[tex]y=-3[/tex]
when x = 0, then y = -3
Putting x = 1
[tex]y=-2\left|1+1\right|-1[/tex]
[tex]y=-4-1[/tex]
[tex]y=-5[/tex]
when x = 1, then y = -5
The graph is also attached below.
PLEASE HELP ME ANWSER THIS♥️♥️♥️♥️
First we need to know what a bisector is. A bisector is a line that divides an object into equal parts. So, If we know that line L is a bisector line, we know that PA = PB.
Hope this Helps!!! :)
pls pls help asap pls
Answer:
The answer is option 2
Step-by-step explanation:
Working out above
Which expression has the sum of twenty six twentieths? (4 points) Selected:a. two fifths plus four tenthsThis answer is incorrect. b. four fifths plus two fourths c. one half plus three tenths d. three fourths plus two fifths
a is wrong
Answer: b. four fifths plus two fourths
Step-by-step explanation: Change the fractions to their equivalents in 20ths-- like finding the common denominator.
Divide the original denominator into 20, then multiply the result by the original numerator to get the new numerator.
4/5 20/5 = 4 4×4 = 16 so 4/5 is equivalent to 16/20
2/4 20/4 = 5 5×2 = 10 so 2/4 is equivalent to 10/20
Add: 16/20 + 10/20 = 26/20