Answers
Answer:
since they said ‘when’ x = -2
just substitute -2 for x
x^3 - x + 4
substitute to get
-2^3 - (-2) + 4
which becomes
-8 + 2 + 4 = -8+6 = -2
Answer:
C, -2
Step-by-step explanation:
-2 x -2 x -2 = -8
-8- -2 = -8 + 2 = -6
-6+4=-2
Related Questions
When Alvin woke up in the morning, it was
–
9°F. By the afternoon, the temperature had risen to
–
2°F.
What was the change in temperature from the morning to the afternoon?
°F
Answers
Answer:
7°F
Step-by-step explanation:
-9 - -2 = -7
Answer: 8
Step-by-step explanation:
HELP PLS I need the answer in 2 days when my homework is due!!
Answers
Answer:
123
Step-by-step explanation:
First of all, you have to find the total amount of people surveyed, so you add 82+105+141, which would be 328. Then you have to find 37.5% of 328, which is 123 only childs that have no pets.
the time taken by 23 students to complete a worksheet
Answers
help asap help asap for brainlist
Answers
Answer:
The first option
Step-by-step explanation:
What is the slope of the line on the graph?
Answers
Answer:
6/1 or just 6
Step-by-step explanation:
Answer:
6 over 1 is the slope
Step-by-step explanation:
to find the slope of a line you have to find two points on the line and do rise over run
so for example for this problem I looked at the tho points and starting from the bottom one I went up (rise) six and over (run) one and got 6 over 1
your welcome : )
Help me plzz I don’t understand this question I have 15min left
Answers
Answer:
1) 150°
2) 30°
3) 50°
4) 70°
5) 100°
Find the slope of the line that passes through (-90, 99) and (-91, 25).
Answers
(25-99)/(-91-(-90) = -74/-1 = 74
The slope is 74
Answer:
I believe the slope is 74
Step-by-step explanation:
m=74
Question 1
Question 2
For a spherical object to just barely block the sun from your view, the ratio of the
length of the object's conical shadow, measured from the object to your eye, to
the object's diameter must be about 108: 1. How far in feet from your eye would a
tennis ball with an approximate diameter of 2.7 inches need to be to just block out
the sun? Round your answer to the nearest tenth.
Question 3
O 3.3
Question 4
O 24.3
0 40.0
0 291.6
Answers
The tennis ball's distance from the eye can be determined by using similar triangles.
The distance of the tennis ball from the eye to block out the Sun is; 24.3 feet.
Reasons:
The given parameter are;
The ratio of the shadow to the objects diameter = 108 : 1
[tex]\dfrac{108}{1} = \dfrac{Distance \ of \ tennis \ ball}{2.7}[/tex]
The distance of the tennis ball from the eye = 108 × 2.7 in. = 291.6 in.
291.6 inches = 24.3 feet
The distance of the tennis ball from the eye to block out the Sun is 24.3 feet.
Learn more here:
https://brainly.com/question/2956155
Please help! Any links will be reported!
Answers
Step-by-step explanation:
The Inaquality Notation should be ( x < - 3 ), you have it right but need to turn the arrow around or you can put in another form. ( x > 0 ) with line under the arrow.
Can anyone help me ASAP!
Answers
Answer:
11,12
Step-by-step explanation:
when calculated, the square root is 11.7473401245, which is between the two integers, 11 and 12!
Hope this helps!
Two trains leave the station at the same time, one heading west and the other east. The westbound train travels 18 miles per hour slower than the eastbound train. If the two trains are 300 miles apart after 2 hours, what is the rate of the westbound train? Do not do any rounding.
Answers
Answer:
66 mph
Step-by-step explanation:
w = e - 18
2w + 2e = 300
2 (e - 18) + 2e = 300
2e - 36 + 2e = 300
4e - 36 = 300
4e = 300 + 36 = 336
e = 84 mph
w = 66 mph
The westbound train is travelling at 66 mph
What happens if you subtract the two equations and solve for S5? Can you use this information to come up with a way to find any geometric series Sn in the form ∑an-1bn-1?
Answers
Step-by-step explanation:
¿Puedes decirnos las ecuaciones?
It takes 2 hours to travel 360 miles on a plane. At this rate, how many miles does the plane travel in 4 hours?
Answers
Step-by-step explanation:
720
Answer:
720
Step-by-step explanation:
360 divided by 2 is 180
1 hour takes 180 miles
180 times 4 gives you how much it takes for 4 hours
answer is 720 miles
why does the formula for area of a circle make sense
Answers
Answer:
Step-by-step explanation:
The usual definition of pi is the ratio of the circumference of a circle to its diameter, so that the circumference of a circle is pi times the diameter, or 2 pi times the radius. The animation above shows that a circle can be cut and rearranged to closely resemble a parallelogram (with height r and base pi times r) of area pi times the square of the radius. By dividing the circle into more than eight slices, the approximation obtained in this manner would be even better. By dividing the circle into more and more slices, the approximating parallelograms approximate the area of the circle arbitrarily close. This give a geometric justification that the area of a circle really is "pi r squared".
can someone help? will mark brainlest
Answers
Answer:
x=33
Step-by-step explanation:
(x+20)+(4x-5)=180
5x+15=180
5x=165
x=33
Please solve thank you!!
Will mark brainliest
Answers
Answer:
I think the answer is 169 because of the exponent
Which is the graph of the linear inequality
y ≥ - x - 3
Answers
Answer:
See answer below.
Step-by-step explanation:
Find three ordered pairs for the graph y > -x - 3
x 0 5 -3
y -3 -8 0
No graphs to pick from! You did not add the picture.
However, the graph is a solid line with points (0, -3), (5, -8), and (-3, 0) on it and for the > shaded the region above the line.
At the basketball game, Leo scored points in 30% of his attempts. Which of the following statements is true?
A- Leo scored points in more than 1/3 of his attempts.
B- Leo scored points in 1/4 of his attempts.
C- Leo scored points in 3/10 of his attempts,
D- Leo scored points in less than 1/6 of his attempts.
THIS IS FOR A TEST, PLEASE HELP
Answers
Answer:
C. Leo scored points in 3/10 of his attempts
Step-by-step explanation:
30% is 30/100
Which can simplify to
3/10
mark owes his sister $15.he earned $20 for mowing the grass. he gave 1/5 of his warning to a local charity and then paid his sister. does mark have enough to repay his sister the full amount?
Answers
Answer:
Yes, with some change to spare.
Step-by-step explanation:
He has 20$. Take 1/5 of it, it's 4$ (because 4x5 = 20), so he will be left with 16$. He owes less than this, 15$, so he can repay his debt in full and have still 1$ left.
What should you consider when you are thinking of buying or leasing a car?
- How long it will take to fill out paperwork.
- How pretty the car is.
✅You financial situation.
- How fast the car is.
Answers
Answer:
Your financial situation.
Step-by-step explanation:
She spent $42.15 and had more than $20 left. Write an inequality using x to best represent the situation.
Answers
Answer
y≥20x-42.15
Step-by-step explanation:
Key Terms:
greater than or equal to = more than
spent = subtraction
inequality = y ± mx + b
PLS BRAINLIEST
Write the slope intercept form of the equation of each lie, given the slope and y-intercept.
.1) slope=4/3, y-intercept=-5
.2) slope =-5, y-intercept =1.
Answers
Answer:
1.) y = 4/3x + (-5)
2.) y = -5x + 1
If the ratio of boys to girls is 2:7 and there are 250 more girls then how many boys are there?
Answers
Answer:
there are 7x girls, so 7x = 2x+250 5x=250
Step-by-step explanation:
a b and c are positive integers a:b
=3:8 and b:c=6:11
Answers
Answer:
a= 18; b= 48; c= 88. Please note that even half these value work (9, 24, 44) or any multiple of these (9k, 24k, 44k, with k a positive integer)
Step-by-step explanation:
Let's go easy, and pick b to be 6x8, to make things easy for us. Maybe even 6x4 could work, 12x8 will totally work, but this is the simplest choice.
Now on the first proportion [tex]a:48=3:8 \rightarrow 8a = 48\times3 \rightarrow a = 18[/tex]
From the second proportion [tex]48:c=6:11 \rightarrow 6c = 48\times 11 \rightarrow c = 88[/tex]
a car traveling 1000 miles in 2 hours has a unit rate of *blank* miles per hour
25
50
200
( ill give brainly to whoever answer first w an explanation)
Answers
Answer:
50
Step-by-step explanation:
Looks like a typo in the question
To get the unit rate, divide the miles by the hours
Unit rates
1000 miles in 2 hours = 1000/2 = 500
I'm guessing you meant 100 miles not 1000 miles
100 miles in 2 hours = 100/2 = 50
A trigonometric graph has the equation y=2cos2∅. State the amplitude of this graph?
Answers
Answer:
amplitude = 2
Step-by-step explanation:
Given
y = a cosbx
amplitude = | a | , period = [tex]\frac{2\pi }{b}[/tex]
y = 2cos2∅
with amplitude = | 2 | = 2
Answer:
[tex]\displaystyle 2[/tex]
Step-by-step explanation:
[tex]\displaystyle y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A|[/tex]
With the above information, you should now tell what the amplitude value is.
I am joyous to assist you at any time.
Addie's cell phone bill was $72.40. Her basic monthly plan is $62.00 which
does not include sending picture messages.
Addie did send picture messages last month and she was charged $0.20 for
each picture message.
How many picture messages did Addie send last month?
Answers
EXPLANATION
72.40-62.00= 10.4
10.4 divided by 0.20= 52
what is the slope of the line // will give lots of points and brainliest
Answers
Answer:
1/2
Step-by-step explanation:
It usually works well to compute the slope from coordinates where the graph crosses grid line intersections. We can identify two of those as ...
(-1, 3) and (1, 4)
The slope formula tells you the slope is ...
m = (y2 -y1)/(x2 -x1)
m = (4 -3)/(1 -(-1)) = 1/2
The slope of the line is 1/2.
__
Additional comment
The y-intercept is 3 1/2.
An equation for the line could be ...
y = 1/2x + 3 1/2 . . . slope-intercept form
x -2y = -7 . . . . . . . . standard form
Kiera pays $1.95 per song
she downloads.
Answers
Answer:
1 song = $1.95
2 songs = $3.90
3 songs= $5.85
4 songs= $7.80
Explanation:
it's simple multiplying
For the line and point on the picture, find a perpendicular line, through the given point. please look at the picture to see the point and line and answer choices.
Answers
Answer:
y = - 7
Step-by-step explanation:
