What is the missing polynomial?
?-(20-4x-5x^2) =20-7x^2
PLEASE HURRY!!! 20 points!!!
Answer:
30
Step-by-step explanation:
what is the answer to this -3n -7 + (- 6n ) + 1
Answer:
-9n-6
Step-by-step explanation:
sm
Answer: Solution
3n+(-6n)-6
Step-by-step explanation:
It cost me $12 for 6 pounds of oranges.
How much is the cost per pound of oranges?
Answer:
$2 per pound.
Step-by-step explanation:
Question 4 (1 point)
A ball is thrown from a mountain 960 feet high, into the air with an upward velocity of 64 ft/s. When did the ball hit the
ground? And What was the max height it reached?
Answer:
The ball will hit the ground at 10 seconds and its maximum height is 1024 feet.
Step-by-step explanation:
Height of a mountain, h = 90 feet
Upward velocity of a ball, u = 64 ft/s
Its height as a function of time can be written by using the second equation of motion as follows :
[tex]f(x) = -16t^2 + 64t + 960[/tex] .....(1)
When it will hit the ground, f(x) = 0
[tex]-16t^2 + 64t + 960=0\\\\16(-t^2+4t+60)=0\\\\-t^2+4t+60=0[/tex]
It is quadratic equation.
t = -6 s and t = 10 s
Neglecting -6 seconds, the ball will hit the ground at 10 seconds.
For maximum height,
Put f'(x) = 0
[tex]-32t+64=0\\\\\\t=\dfrac{64}{32}\\\\t=2\ s[/tex]
Put t = 2 in equation (1)
[tex]f(2) = -16(2)^2 + 64(2) + 960\\\\=1024\ \text{feet}[/tex]
Hence, the ball will hit the ground at 10 seconds and its maximum height is 1024 feet.
The figure below is a scale drawing of an office courtyard using the scale 1 centimeter = 4 feet? ( Couldn't fit this in the picture, this is at the top above everything else for the first drawing shown.)
Which figure is a scale drawing of the same courtyard using the scale 1 centimeter = 3 feet?
Answer:
the answer is D
Step-by-step explanation:
they divided
Answer:
It's actually B.
Step-by-step explanation:
Divide the numbers on the scale drawing by 3. 75 divided by 3 equals 25, 51 divided by 3 equals 17, 30 divided by 3 equals 10, and 72 divided by 3 equals 24. Letter B has all of those answers.
Select all that apply.
If there are 12 girls and 15 boys in a class, which ratios are true?
3 girls to 5 boys
5 boys to 9 students
12 girls to 27 students
15 boys to 12 girls
Answer: 12 girls to 27 students
5 boys to 9 students
15 boys to 12 girls
HOPE THIS HELPS
CAN U PLEASE GIVE ME BRAINLIEST
May someone tell me if I’m correct cause I think I’m right but I need to double check with someone thanks
Answer: Proportional
Step-by-step explanation: Any table that starts with (0,0), it means it’s proportional!
Write an equation of the line that passes (-3,3) and is perpendicular to the line 2y=8x-6
Answer:
2y=8x-30 or -4x+y=-15
Step-by-step explanation:
Answer: y = (-1/4)x + 9/4
Step-by-step explanation:
2y = 8x - 6
So, y = 4x - 3 (Slope = 4)
Slope of perpendicular line = -1/4
Equation of line: y-3 = (-1/4)(x-(-3))
y-3 = (-1/4)x - 3/4
y = (-1/4)x + 9/4
The pie chart represents the proportion of how Colin spent the £900 he took on holiday all values are in degrees workout how much he spent on each category
Answer:
£180,£540 and £180
Step-by-step explanation:
Looking at the information presented, we don't have the percentages given neither do we have the items bought
However, let's say the money was spent on drinks, hotel reservations and food.
20% on food
60% on hotel reservations and
20% on transportation
We can now compute the individual cost of the a amount spent on each category from their percentage
For food
=20/100*900
=0.2*900
=180
Hotel reservations
=60/100*900
=0.6*900
=540
Foe transportation
=20/100*900
=0.2*900
=180
So, if you have your data, only follow the steps above and you will get your answers
To check, when we add all the amounts together they should sum up to 900
180+540+180=900
the first person to answer thess right will get brainliest :) In a standard deck of cards, there are thirteen different cards: Ace, King, Queen, Jack, nine, eight, … and two. There are 4 cards of each kind as there are 4 different suits: Hearts, Spades, Clubs, and Diamonds. a. What is the probability that I draw a 4? b. P (Queen of Hearts) c. P (King) d. What is the probability that I draw a card less than 4? e. P (Spade) f. P (Queen or 3) g. P ( Face Card)
Answer/Step-By-Step Explanation:
A). 4/52 —> 1/13
B). 1/52 (there’s only one Queen of Hearts)
C). 4/52 —> 1/13
D). 8/52 —> 2/13 (cards less than 4 are 2 and 3).
E). 13/52 —> 1/4
F). 8/52 —> 2/13 (probability of choosing a queen is 4/52, probability of a 3 is 4/52).
G). 12/52 —> 3/13
How many 3/4s are in 2 ?
1 .Write a multiplication equation and a division equation that can be used to answer the question.
2.Draw a tape diagram and answer the question. Use the grid to help you draw, if needed.
Answer:
3/4 into decimal = 0.75
0.75 X 100 = 75
2 X 100 = 200
200/75 = 2.66666666
6th Grade Math! Can you please help?
Answer:it is c and d
Step-by-step explanation:
WILL GIVE BRAINLIEST !!!
this table shows how many sophomores and juniors attended two school events. what is the probability that a randomly chosen person from this group is a junior? round your answer to two decimal places.
Probabilities are used to determine the chances of an event. Here, we want to calculate the chances of selecting a junior student. The probability of selecting a junior is 0.44.
From the table, we have:
[tex]Junior = 60[/tex]
[tex]Total = 137[/tex]
So, the probability of Junior is
[tex]P(Junior) = \frac{Junior}{Total}[/tex]
This gives:
[tex]P(Junior) = \frac{60}{137}[/tex]
[tex]P(Junior) = 0.437[/tex]
Approximate
[tex]P(Junior) = 0.44[/tex]
Hence, the probability of selecting a junior is 0.44
Read more about probabilities at:
https://brainly.com/question/13957582
Answer:
0.44
Step-by-step explanation:
Here is a list of numbers:
5.2, 8, 8.2, 6.4, 8.3, 3.4, 9.6 ,0.3,3,3,5.5
State the median
Answer:
5.5 is the answer
:)
Step-by-step explanation:
7 2/3 + 8 2/5
Show how u got the answer
Answer: 16 1/15
23/3+42/5
115/15+126/15
241/15= 16 1/15
I hope this helps:
Answer:
16 1/15
Step-by-step explanation:
Add the whole numbers. 7+8=15
Now, combine the fractions 2/3 and 2/5. To do so, you need a common denominator. The LCD between 3 and 5 is 15.
Whatever you do to one side you must do to the other.
(5/5) 2/3+ 2/5 (3/3)
10/15+6/15=16/15
15+16/15
16/15 is an improper fraction, so convert this fraction to a mixed number.
16/15= 1 1/15
Finally, add the two together. 15+ 1 1/15=
16 1/15
write the equation of a quadratic function that contains the points (1,21), (2,18), and (-1,9)
Answer:
The equation of a quadratic function that contains the points (1, 21), (2,18) and (-1, 9) is [tex]y = -3\cdot x^{2}+6\cdot x +18[/tex].
Step-by-step explanation:
A quadratic function is a second order polynomial of the form:
[tex]y = a\cdot x^{2}+b\cdot x + c[/tex] (1)
Where:
[tex]x[/tex] - Independent variable.
[tex]y[/tex] - Dependent variable.
[tex]a[/tex], [tex]b[/tex], [tex]c[/tex] - Coefficients.
From Algebra we understand that a second order polynomial is determined by knowing three distinct points. If we know that [tex](x_{1}, y_{1}) = (1, 21)[/tex], [tex](x_{2},y_{2}) = (2,18)[/tex] and [tex](x_{3}, y_{3}) = (-1, 9)[/tex], then we construct the following system of linear equations:
[tex]a+b+c = 21[/tex] (2)
[tex]4\cdot a + 2\cdot b + c = 18[/tex] (3)
[tex]a - b + c = 9[/tex] (4)
By algebraic means, the solution of the system is:
[tex]a = -3[/tex], [tex]b = 6[/tex], [tex]c = 18[/tex]
Therefore, the equation of a quadratic function that contains the points (1, 21), (2,18) and (-1, 9) is [tex]y = -3\cdot x^{2}+6\cdot x +18[/tex].
A photographic negative is 2 in. by 1.5 in. An
enlarged print from this negative has a length
of 9 in. as its shorter side. What is the length of
its longer side?
Answer:
The length of the longer side is 12 in
Step-by-step explanation:
Scaling
The dimensions of the photographic negative are 2 in by 1.5 in.
An enlarged print of it has a length of 9 in and it's equivalent to the shortest side.
Since the shortest side of the negative is 1.5 in, the scale factor is 9/1.5 = 6.
The longer side should have been enlarged by the same factor, thus the longer side is 2*6 = 12 in
The length of the longer side is 12 in
Which equation gives the line shown on the graph?
y
10
9
8
7
6
5
3
2
1
х
0
0 1 2 3 4 5 6 7 8 9 10
The equation of the line in the given graph, in slope-intercept form, is determined as: y = 1/2x + 4.
What is the Equation of a Line?In slope-intercept form, we can express the equation of a line as, y = mx + b, where, m is the slope and b is the y-intercept of the graph.
Slope of the line (m) = change in y /change in x = 1/2
Y-intercept (b) = 4
Substitute m = 1/2 and b = 4 into y = mx + b:
y = 1/2x + 4
The equation of the line is: y = 1/2x + 4.
Learn more about equation of a line on:
https://brainly.com/question/13763238
#SPJ5
Find the area of each figure for questions 7 and 8
Please Answer!
Answer:
56ft2 in
Step-by-step explanation:
Whats the vaule of 1.8
Answer:
c
Step-by-step explanation:
because -1.8is tennecally the oposites but it hase the same number so i think its c
The area of a circular mouse pad is 64 square inches. Use 3.14 for 7. Estimate its radius to the nearest integer.
Answer:
about 4.52
Step-by-step explanation:
Since pi times radius squared is the formula for area, you would first divide 64 by 3.14 to get about 20.4. Then since you square the radius, you would do the opposite and find the square root which is about 4.52.
2) There were 80 golfers in the first round of a tournament. Of the 80, 62.5% qualified for the next round. How many did not qualify?
Answer: 30 golfers
Step-by-step explanation: 62.5% of 80 is 50 golfers who qualified so 30 golfers as a result did not
Mom buys a rectangular rug with an area of 7 1/6 square meters. The length of the rug is 3 1/3 meters. What is the width of the rug?
Answer:
2 3/20 mStep-by-step explanation:
The area is the product of the length and width
The area = 7 1/6 m² = 43/6 m²The length = 3 1/3 m = 10/3 mWidth = ?
A = lww = A/lw = 43/6 ÷ 10/3 = 43/6 × 3/10 = 43/20 = 2 3/20 mThe width is 2 3/20 m
1
2
3
4.
5
6
7.
8
9
10
4
The volume of a sphere is 36 ft. What is the radius of the sphere? Use the formula V = ar to find your
3
answer.
The radius of the sphere is
feet.
Answer:
Radius of sphere = 3 feet
Step-by-step explanation:
The volume of sphere is 36 π ft³.
We need to find the radius of sphere.
The formula used is: [tex]Volume\:of\:sphere=\frac{4}{3}\pi r^3[/tex]
Putting value of volume and finding radius
[tex]Volume\:of\:sphere=\frac{4}{3}\pi r^3\\36\pi =\frac{4}{3}\pi r^3\\r^3=36 \pi \times \frac{3}{4\pi} \\r^3=9 \times 3\\r^3=27\\Taking\:cube\;root\:on \:both\:sides\\\sqrt[3]{r^3}=\sqrt[3]{27}\\r=3[/tex]
So, Radius of sphere = 3 feet
Pls help me on number 10 plsss I’ll give brainlest
Answer:
Step-by-step explanation:
0 10
1 21
2 32
3 43
i donno if thats what you wanted
Answer:
0 43 turns into 1 44
1 32 2 33
2 21 3 22
3 10 4 11
Step-by-step explanation:
Pls help I will give 10 points :((((
I will be reporting people who don’t know :)
Answer: D, 180 - 130
I need help with all 4 of these
is these a function or not a function
Which measurement is most accurate to describe the amount of time it would take to watch a television show?
No options are listed to your question. My best guess, depending on the typical length of TV shows, is the measurement of minutes!
Answer: Minutes can be used mostly in determining the duration for watching a TV show.
Step-by-step explanation:
Wie viele US-Dollar sind 30000 Euro?
Answer:
36,902.10 US-Dollar
Step-by-step explanation:
Consider the enlargement of the triangle.
A smaller triangle with side lengths 9 millimeters and 6 millimeters. A larger triangle with side lengths x millimeters and 16 millimeters.
Which statement is true about setting up a proportion to solve for the missing measure?
Corresponding parts must be in different positions.
Corresponding parts must be in the same position.
The two ratios are not equal.
The enlargement is not proportional to the original figure.
its B XDD
Answer:
corresponding parts must be in the same position
Step-by-step explanation:
you can't proportion something to something that can't use the ratio.
Answer:
b
Step-by-step explanation:
