Help with Pre-Calculus!!
Answer:
See explanation
Step-by-step explanation:
1)
The importance of the inequality is that this it restricts the possible values of the change.
2)
Without the inequality, q would not be restricted at all, and would be free to range in all values.
I need help on this math it’s 7th grade
Answer:
4 times as long
Step-by-step explanation:
If im wrong, delete this.
Answer:
The wavelength of red light is 2 times longer than the wavelength of violet light.
Step-by-step explanation:
8 times 10^-7 written in standard form is 0.0000008
4 times 10^-7 written in standard form is 0.0000004
divide both of them:
=2
Find g(f(x)), given f(x)=3x2−x+1,g(x)=2x
Answer:
6x²-2x+2
Step-by-step explanation:
For g(f(x)), we have to first do f(x), and then substitute it into the "x" in g(x)
So, f(x) = 3x²-x+1
We need to substitute the "x" in g(x) with this entire thing
So, g(x) = 2x
When we substitute f(x) into it, it instead becomes 2(3x²-x+1)
Next, we have to expand the brackets, and doing so gives us the following:
6x²-2x+2
So that becomes our final answer!
Let me know if it makes sense! :)
Y= -8x+120
What is the y-intercept, and slope
Answer:
y = -2/5x -6 I think!!
Step-by-step explanation:
Answer:
y-intercept - 120
slope - -8x
Step-by-step explanation:
If you remember y=mx+b, m is the slope and b is the y-intercept.
Hope this helps! :)
Calculate the area of the following shape
Answer: PLEASE DONT REPORT ME!
Step-by-step explanation:
Please help me solve this problem
Answer:
13 hours
step by step instructions
i divided 390 by 30 hope it ok
Answer:
The repair man worked 11 hours.
Step-by-step explanation:
$390 - $60 = $330. keep in mind that she paid $60 for him to reach to her house the balance is for hours worked.
$330/$30= 11 hours
Please helppp
I’ll mark
How does a sequence of translations , relections , and rotations result in congreunt figures
Answer:
if the size (and shape) of the figure doesn't change then it's congruent
Step-by-step explanation:
hello everyone ,
i am having some problems solving this question in maths
Arrange 13.25 kg, 14560 g, 13.6 kg, 12000 g in descending order ,
Write the following decimals as fractions. Reduce the fractions to lowest
form.
a) 3.6 b) 12.5
i hope u also consider explaining
thank you all .
Answer:
Descending order:
14560g
13.6kg
13.25kg
12000g
a.) [tex]\frac{18}{5}[/tex]
b.) [tex]\frac{25}{2}[/tex]
Step-by-step explanation:
To find the difference between kg or g, either divide kg by 100 to convert to g, or multiply g by 1000 to convert to kg.
If we were to put everything into g:
14560g
13600g
13250g
12000g
See how they are still in the correct order?
If we were to put everything into kg:
14.56kg
13.6kg
13.25kg
12kg
Still in descending order!
___________________
Now to find out how to put the decimals into fractions:
Multiply by 10 (since there is only 1 digit behind the decimal, for every digit behind the decimal you multiply by another factor of 10, so if you have 2.55 you multiply by 100)
Following this we get:
36
125
Now divide by the same factor (10), we can't change the value of the number, just the way they look!
[tex]\frac{36}{100}[/tex]
[tex]\frac{125}{10}[/tex]
All that's left is it reduce!
[tex]\frac{18}{5}[/tex]
[tex]\frac{25}{2}[/tex]
And as you can see, we are back to the number I had put in the solution!
Write the equation of the line through
(0, 4) and (2, 0) in slope-intercept form.
Answer: y = -2x + 4
Step-by-step explanation: slope intercept form is "y=mx+b" where m is the slope and b is they y intercept. the y intercept is when x=0 and it's given to us in the question. the y intercept is (0,4). so y=4. we can plug that into the equation to now have y=mx + 4.
now we need to find the slope. we can do this by plugging the two points into the formula [tex]\frac{y2-y1}{x2-x1}[/tex]. so we'd have [tex]\frac{0-4}{2-0}[/tex] to get -4/2 which is -2. -2 is the slope.
so the final answer is y = -2x + 4
Select the correct line. Which line is perpendicular to AB
Answer:
line 1
Step-by-step explanation:
perpendicular is the opposite so therefore line 1 is the answer
From the given figure, line AB perpendicular to line 1.
We need to check which line is perpendicular to AB.
What are perpendicular lines?In elementary geometry, two geometric objects are perpendicular if they intersect at a right angle. The condition of perpendicularity may be represented graphically using the perpendicular symbol, ⟂. It can be defined between two lines, between a line and a plane, and between two planes.
From the given figure we can see that line AB perpendicular to line 1.
The line AB perpendicular to line 1, intersect each other and made an angles 90°.
Therefore, from the given figure, line AB perpendicular to line 1.
To learn more about the perpendicular lines visit:
https://brainly.com/question/18271653.
#SPJ5
Are the points O, M, and U collinear?
.
Choose 1 answer:
Yes
No
Answer:
No
Step-by-step explanation:
Because they're not lying on the same straight line
Divide and express in the form of a complex number a + b i.
(-1 - 2i) / (- 4 + 3i)
Answer:
-2 / 25 + (11 / 25) i
Step-by-step explanation:
Hope this helps :)
divide 3x^3 -2x^2 -61x -20 by x-5
PLEASE SHOW WORK AND I'LL MARK BRAINLIEST
The regression equation y=-0.433x+104.94 approximates the percent of people in an audience who finish watching a documentary, y, given the length of the film in minutes, x.
What is the best prediction for the percent of people in an audience who will finish watching a documentary that is 60 minutes long? (Round your answer to the hundredths place and Do not include the percent sign in your answer as the computer knows it is a percentage)
You must show your work on this problem to receive credit.
Your Answer:
Answer:
78.96Step-by-step explanation:
Substitute x with 60 into the regression equation and evaluate:
y = -0.433*60 + 104.94 = 78.96%find the volume and surface area of prism
Follow up from the attachment.
Figure 2
Surface area:319cm²
Volume:184cm²
Could someone please help to answer this, please no spam, will give brainliest, thank you (Homework help)!!!
Answer:
Step-by-step explanation:
whats 3+9+3+6+5+8+4+3+9-23-1 divided by 2=
Answer:
13
Step-by-step explanation:
=26/2
=13
hope u got it
The ordinate of a point is twice its abscissa . If its distance from the point (4,3) is √10 units ,then the coordinates of the point are ?
Answer:
(1 , 2) and (3 , 6)
Step-by-step explanation:
the point P : (x , y) -> (x , 2x) ... ordinate of P point is twice its abscissa, y = 2x
√10 = √(x-4)² + (2x-3)²
5x² - 20x + 25 = 10
x² - 4x + 3 = 0
(x-1)(x-3) = 0
x = 1 or x = 3
y = 2 or y = 6
The two figures are similar. Find the ratios (red to blue) of the perimeters and of the areas. Write the ratios as fractions in simplest form. 6 and 11
Answer:
see explanation
Step-by-step explanation:
The perimeters of the similar figures have the same ratio as the sides.
ratio of perimeters = [tex]\frac{11}{6}[/tex]
ratio of areas = 11² : 6² , that is 121 : 36
ratio of areas = [tex]\frac{121}{36}[/tex]
Solve all these correct to get brainliest!
Basic algebra 1:
x+4=11
Basic algebra 2:
x+3=24
Basic algebra 3:
4x=12
Basic algebra 4:
5x+3=33
Basic algebra 5:
8x+5=3x+20
Algebra basic fractions 1:
[tex]\frac{1}{2} x=4[/tex]
Algebra basic fractions 2:
[tex]\frac{4}{3} x=4[/tex]
Algebra basic fractions 3:
[tex]2x+-4=8[/tex]
Algebra basic fractions 4:
[tex]\frac{1}{3} x+\frac{1}{2}x=20[/tex]
Algebra basic fractions 5:
[tex]\frac{1}{3} x=\frac{1}{5} x+10[/tex]
Answer:
1) x + 4 = 11
Subtract 4 on both sides, to get x = 7 .
2) x + 3 = 24
Subtract 3 on both sides, to get x = 21 .
3) 4x = 12
Divide 4 on both sides, to get x = 3 .
4) 5x + 3 = 33
First subtract 3 on both sides to get
5x = 30, now divide 5 on both sides, to
get x = 6 .
5) 8x + 5 = 3x + 20
First subtract 5 from 20 in order to
move it, now you have 8x = 3x + 15 .
Next subtract 3x from 8x in order to
move it, now you have 5x = 15 . Lastly
divide 5 on both sides, to get x = 3 .
1) 1/2 x = 4
Multiply both sides by 2, to get 1x = 8,
or x = 8 .
2) 4/3 x = 4
Multiply both sides by 3, to get 4x = 12 .
Next divide 4 on both sides to get
x = 3 .
3) 2x + (-4) = 8
Add 4 on both sides, to get 2x = 12 .
Next divide 2 on both sides to get
x = 6 .
4) 1/3 x + 1/2 x = 20
First multiply the denominators to get a
common denominator of 6 and then
add 3 and 2, to get the numerator. Now
you have 5/6 x = 20 . Next multiply 6
on both sides to get 5x = 120 . Lastly
divide 5 on both sides to get x = 24 .
5) 1/3 x = 1/5 x + 10
First multiply the denominator to get a
common denominator of 15 and then
subtract 3 from 5 to get the numerator.
Now you have 2/15 x = 10 . Next
multiply 15 on both sides to get
2x = 150. Lastly divide 2 on both sides
to get x = 75 .
Hope this helped :)
Btw sorry it's so long.
Answer:
For to the be the studip
Step-by-step explanation:
Yes, give man brainiest
Help asap person to Anwser correct in 5 mins I’ll give brainliest Anwser to
Answer:
[tex] \frac{3 - 3}{20 - 19} = \frac{0}{1} = 0 = m \\ \frac{ - 4 - 7}{ - 6 - ( - 4)} = \frac{ - 11}{ - 2} = \frac{11}{2} = m \\ \frac{8 - ( - 13)}{17 - 17} = \frac{21}{0} = und[/tex]
2.11 Incomes of college grads. The Census Bureau reports that the mean
and median income of people who worked full-time in 2001 and had at
least a bachelor's degree were $53,054 and $72,674. Which of these
numbers is the mean and which is the median? Explain your reasoning.
2.12 Internet access. How much do users pay for Internet access? Here are
the rhonthly fees (in dollars) paid by a random sample of 50 users of
commercial Internet service providers in August 2000:4
20 40 22 22 21 21 20 10 20 20
20 13 18 50 20 18 15 8 22 25
22 10 20 22 22 21 15 23 30 12
9 20 40 22 29 19 15 20 20 20
20 15 19 21 14 22 21 35 20 22
(a) Make a stemplot of these data. Briefly describe the pattern you see.
About how much do you think America Online and its larger
competitors were charging in August 2000? Are there any outliers?
(b) To report a quick summary of how much people pay for Internet
service, do you prefer ands or the five-number summary? Why?
Calculate your preferred summary
Mario has 3750 paper clips. Chi has 2993 paper clips. How many more paper clips does
Mario have than Chi?
Answer: Mario has 757 more paper clips than Chi.
Step-by-step explanation:
Subtract 2,993 from 3,750. The answer is 757.
Find the equivalent measurement.
a. _ feet = 7 yards
b. 9 feet = _ yards
c. _ yards = 48 inches
d. _ yards = 24 feet
Which is the solution set of this
inequality?
- 2n – 7> -25
-
A. n> 16
B. n< 16
C. n>9
7
D. n<9
Answer: n> 16
:))))))))
i need help is my answer is correct or not yallll ...
Answer:
YES you are
Step-by-step explanation:
What is the range of g?
y
9
7+
6
5
4
3
2
1+
t
-5 -4 -32
→
8 9
1
2 3
4
5 6
7
-2
-3
-4
-5
-6
-7
Answer:
[-1,5]
Step-by-step explanation:
all reals between -1 and 5
NEED HELP NOW PLZ
6) Find KM 2x-2+10=7x-2
Answer:
2x-7x=-2-8
-5x=-10
x=2
Step-by-step explanation:
x=2
-7(1 - 5 p) = -35 + 7 p
Answer:
-7(1 - 5 p) = -35 + 7 p
p = -5/3 = -1.6666.... = -1 2/3
Step-by-step explanation: