Answer:
[tex] {y}^{2} + \frac{4}{y} = 2 \\ {y}^{3} + 4 = 2y \\ {y}^{3} - 2y + 4 = 0 \\ y = - 2, \: \: \: \: 1 + i[/tex]
Latoya has b decks of cards . Each deck has 52 cards in it , what is the expression for the total numbers of cards latoya has
Answer:
52b
Step-by-step explanation:
She has 52 cards per deck, and b decks.
This means she has 52b cards.
How this works:
For 1 deck, she has 52 cards, or 52×1 cards.
For 2 decks, she has 104 cards, or 52×1 cards.
For 5 decks, she has 260 cards, or 52×5 cards.
For 10 decks, she has 520 cards, or 52×10 cards.
Therefore, for b decks, she has 52×b, or 52b cards.
**This content involves writing algebraic expressions, which you may wish to revise. I'm always happy to help!
7th grade math help me pleaseeee
Answer:
4x + 5y = 20
Step-by-step explanation:
4x + 5y = 20
5y = -4x + 20 (Subtract 4x to isolate 5y. Put the 4x in front of the 20)
y = [tex]-\frac{4}{5}x[/tex] + 4 (Divide all by 5 to isolate y)
And then it's done and in slope-intercept form
[tex]-1< -\frac{4}{5} < 0[/tex] or [tex]-\frac{4}{5}[/tex] is greater than -1 but less than 0
I hope this helped :)
In a normal distribution, what is the probability that a data value will fall below the
data value associated with a z -score of 3.37?
A 99.96%
B 0.04%
C 1%
D 99.95%
Answer:
A 99.96%
Step-by-step explanation:
The z score shows by how many standard deviations the raw score is above or below the mean. The z score is positive if the raw score is above the mean while the z score is negative if the raw score is below the mean. The z score is given by:
[tex]z=\frac{x-\mu}{\sigma} \\\\where\ z=z-score,\ x=raw\ score,\mu=mean, \ \sigma=standard\ deviation\\\\For\ a\ sample\ size(n):\\\\z=\frac{x-\mu}{\sigma/\sqrt{n} }[/tex]
The probability can be gotten from the normal distribution table. Therefore from the normal table:
P(z < 3.37) = 0.9996 = 99.96%
Write the slope-intercept form of the equation of the line described.
61) through: (-5, -3). parallel to y=-2/5-2
How do I solve for this?
Answer:
don't
Step-by-step explanation:
i don't know
A ABC is isosceles. Find AC.
B
3x + 3
20 + 8
A
A
C
Ansfdfgh gggghjtyuhjrswzargfyf
Step-by-step explanation:
Please please help me
Answer:
22is the answer cuz it is
Answer:
Step-by-step explanation:
using pythagoras theorem
a^2 + b^2 = c^2
here 4 and 9 are the legs of the right angled triangle so let them be a and b respectively . third side is the hypotenuse because it is opposite to 90 degree so let it be c.
4^2 + 9^2 = c^2
16 + 81 = c^2
97 = c^2
[tex]\sqrt{97} = c[/tex]
HELP PLEASE
20. What is vertex of the function f(x) = 2x2 – 12x + 10 ?
A. (-2, -8)
B. (3, 18)
C. (3, -8)
D. (2, 10)
Answer:
C
Step-by-step explanation:
my workings are in the image above
A bag contains balls of five different colors. Two are red, three are blue, ten are white, four are green and three are black. Balls are taken from the bag without looking, and not returned. What is the smallest number of balls that should be taken from the bag to be sure that two balls of the same color have been taken? please explain with the answer
Answer:
6
Step-by-step explanation:
The worst scenario is that of a slight possibility, the first 5 balls you took are completely different color. The chance of this happening is tiny, but if you want to be sure, then you should consider about it.
But, after taking out the sixth ball, you can be sure that the ball, now right on your hand, must share a same color with at least one of the balls you took out, since there are only five colors.
(Please help!) What is the value of x?
B
(x + 5) ft 910
8 ft
more
91°
А
38°
P.
38°
13 ft
13 ft
R
X=
Answer:
x = 5.1
Step-by-step explanation.
Our first step is to find all the angles. If b = 91 degree and c is 38, a. has to be 51 because all triangles add up to 180 degree. Because we have both B and b, we can use sine law.
a/A 13/sin91 c/38
we can use b in this situation.
The legnth of a is 10.1.
So, x-5 would be 5.1
If line a has a slope of -3 and is perpendicular to line b, what would is the slope of line b?
Answer:
Slope of line B: 1/3
Step-by-step explanation:
To find a slope perpendicular to another slope, you take its negative reciprocal.
Therefore, line B will have a slope of 1/3 because -3 -> -1/3 -> 1/3
A model boat has a scale of 1 to 12. If the actual boat is 36 feet long, how many inches long is the model boat?
Answer:
3 ft
Step-by-step explanation:
We can use a ratio to solve
Using x as the length of the model
1 x
----- = -----------------
12 36 ft
Using cross products
1 * 36 = 12x
Divide each side by 12
36/12 = 12x/12
3 =x
Answer:
Step-by-step explanation:
[tex]\frac{1}{x}[/tex] : [tex]\frac{12}{36}[/tex]
12x and 36
divide 36 by 12
36/12 = 3
3in
A 3-dimensional shape is made of 36 unit cubes, without any gaps. What is the volume of the shape?
Answer:
36 unit
Step-by-step explanation:
The number of unit cubes in the shape = 36 unit cubes
The dimension (volume) of each cubes = 1 unit³
The type of shape = 3-dimensional
The arrangement of the cubes in the shape = Without gaps
The volume of a 3-dimensional shape made of a number of unit cubes without gaps is equal to the sum of the unit cubes
Therefore;
The volume of the 3-dimensional shape that consists of 36 unit cube, V = (1 + 1 + 1 +...+ 1) unit³ = 36 unit³
The volume of the 3-dimensional shap³e, V = 36 unit³
a line goes through the points (6,3) and (-6,-3). Find its slope provide the answer as a fraction simplified in lowest
Answer:
1/2
Step-by-step explanation:
y2 - y1 / x2 - x1
-3 - 3 / -6 - 6
-6 / -12
= 1/2
We want to find the slope of a line given that we know that the line passes through the points (6, 3) and (-6, -3).
We will find that the slope is: 1/2
A general line can be written as:
[tex]y = a\cdot x + b[/tex]
Where a is the slope and b is the y-intercept.
If the line passes through the points (x₁, y₁) and (x₂, y₂) then we can write the slope as:
[tex]a = \frac{y_2 - y_1}{x_2 - x_1}[/tex]
We know that our line passes through (6, 3) and (-6, -3), then the slope of our line will be:
[tex]a = \frac{-3 - 3}{-6 - 6} = \frac{-6}{-12}[/tex]
Now to simplify this, we know that:
-12 = 2×(-6)
Replacing that in the above equation we get:
[tex]a = \frac{-3 - 3}{-6 - 6} = \frac{-6}{-12} = \frac{-6}{2\cdot -6} = \frac{1}{2}[/tex]
Then the slope written as a simplified fraction is:
a = 1/2
If you want to learn more, you can read:
https://brainly.com/question/3605446
HELPPP PLEASEEEE
Identify the transformations you would apply to f(x) = sin x to graph f(x) = 0.5 sin (x - 30%)
Andrew is using tiles to decorate a rectangular table that is 4/5 meter long and 2/3 meter wide. What is the area of Andrews table in square meters
Given:
Length of rectangular table = [tex]\dfrac{4}{5}[/tex] meter
Width of rectangular table = [tex]\dfrac{2}{3}[/tex] meter
To find:
The area of the table.
Solution:
Area of a rectangle is:
[tex]A=l\times w[/tex]
Where, l is the length and w is the width.
Substitute [tex]l=\dfrac{4}{5}[/tex] and [tex]w=\dfrac{2}{3}[/tex] in the above formula to find the area of the rectangular table.
[tex]A=\dfrac{4}{5}\times \dfrac{2}{3}[/tex]
[tex]A=\dfrac{8}{15}[/tex]
Therefore, the area oft he table is [tex]\dfrac{8}{15}[/tex] square meters.
Pls help just type no files
Answer:
36 spoons
Step-by-step explanation:
Its a quadratic equation I Dont know exactly how to solve it help please
Answer:
Step-by-step explanation:
(x - 2)(x + 4)
=x(x + 4) -2(x + 4)
=x^2 + 4x - 2x - 8
=x^2 + 2x - 8
(x + 1)(x + 6)
=x(x + 6) +1(x + 6)
=x^2 + 6x + x + 6
=x^2 + 7x + 6
(x - 4)(x + 2)
=x(x + 2) -4(x + 2)
=x^2 + 2x - 4x - 8
=x^2 - 2x - 8
(x + 5)(x - 3)
=x(x - 3) +5(x - 3)
=x^2 - 3x + 5x - 15
=x^2 + 2x - 15
(x - 6)(x - 2)
=x(x - 2) -6(x - 2)
=x^2 - 2x - 6x + 12
=x^2 - 8x + 12
By looking at the dilation below, find the x-coordinate of the center of dilation.
Answer:
the center of dilation would be (-2,2), so x= -2
Step-by-step explanation:
the center of dilation would be were the three lines meet
Can someone help me with this question please
Answer:
the anwser is d
Step-by-step explanation:
Here we are given that C is between A and B.
So using the midpoint rule, sum of whole length AB will be addition of lengths AC and BC
Hope that helps
Answer:
AC Or CA
Step-by-step explanation:
So, this is what a b and c would look like on a number line:
A----C----B
However, we dont know exactly what these variables are. THey could be somerthing like this:
A------------------C-B
But this doesnt matter.
If we look at the first numberline, A and C make up the first half of the numberline.
C to B make up the later half.
AB is the total numberline.
SO tecnically, A to C+ C to B = AB
Or:
AC + CB = AB
This can also be seen in the second numberline.
A to C make up almost all of the numberline.
C to B make up a smll amount.
But in the end, AC + CB will still make AB.
Hope this helps you! :D
Find the difference:
8 1/9 - (5/9)
Answer: 7 5/9
Step-by-step explanation:
8 1/9 - (5/9) = 68/9 = 7 5/9
Chen can jump rope 60 times a minute. At that rate, how many jumps can he make in 9 minutes?
Answer:
540 jumps in 9 minutes.
Step-by-step explanation:
60 jumps a minute. Chen is fast, but we need to find how many jumps in 9 minutes.
Let's say one minute is m
m = 60
9m = 60x9
We do x9 because from m to 9m you need to multiply by 9, so lets do that on both sides.
9m = 540
9 minutes = 540 jumps
Hope this helps!
--Applepi101
HELP!!
BONUS!!!
PLS ANSWER A B C OR D
Answer:
About 1 1/2 :)
Step-by-step explanation:
The answer is 1.46 which is close to 1.5
help please i beg for help please
What is the standard form for the quadratic function?
f(x)=(x−3)2+5
f(x)=x2+14
f(x)=x2+6x−4
f(x)=x2−4
f(x)=x2−6x+14
Answer:
f(x)= x2 -4
Step-by-step explanation:
it is because it has no complex roots
Solve unit rate problems- in a soccer league the ratio of boys to girls is 4 to 6 there are a total of 50 players in the soccer league determine how many girls play in the soccer league
A.30
B.20
C.10
D.50
Answer:
30 girls
Step-by-step explanation:
boys to girls
4 to 6
since there are 50 players we have
4*5= 20 to 6*5 =30
because 20+30 =50 players and we keep the ratio equivalent since we multiplied by the same number.
108 students choose to attend one of three after school activities: football, tennis or running. There are 40 boys. 37 students choose football, of which 26 are girls. 39 students choose tennis. 12 girls choose running. A student is selected at random. What is the probability this student chose running? Give your answer in its simplest form.
Answer:
8/27
Step-by-step explanation:
First, we figure out how many students chose each school activity, so that we can find the probability of a student at random choosing running by putting (total running students)/(all students).
39 students chose tennis, as stated in the problem.
37 students chose football, as stated in the problem.
The total number of students who chose running must therefore be the the students who chose tennis and football, subtracted from the total number of students. 108 - 39 - 37 = 32, so 32 students chose running.
Therefore, the probability that a student at random chose running would be 32/108 or 8/27.
5 [4 (22-18) +4]
what's the answer
Answer:
Step-by-step explanation:
5 [4 (22-18) +4] = 5 [4 (4) +4] [start from the inner most bracket.]
= 5 [ 16 + 4] [more priority for parenthesis than + ]
= 5 [ 20 ] [again solve inside the bracket]
= 100
Answer:
100
Step-by-step explanation:
➛ 5 [ 4 ( 22 - 18 ) + 4 ]
➛ 5 [ 4 ( 4 ) + 4 ]
➛ 5 [ 16 + 4 ]
➛ 5 [ 20 ]
➛ 100
Pick a number less than or equal to 30 from a bag with 40 pieces of paper
numbered 1 through 40.
find the length of the missing triangle. round your answer to three decimal places
PLEASE HELP!
Answer:
There is just one simple rules for find other side
Step-by-step explanation:
Think about a triangle and this triangle has 3 side it must have 90° on one edge. We assume the longest side is hipotenus x²+y²=hipotenus² . Look at your question hipotenus is 15 lets try to find other side. X²+12²=15² x=9
Which one of the following phrases best describes the line that passes through the
points (5, -7) and (a, -4), where a < 0?
o Rises from left to right
Falls from left to right
o Horizontal
o Vertical
The phrases best describes the line that passes through the points (5, -7) and (a, -4) is rise from left to right.
What are coordinates?Coordinates are two numbers (Cartesian coordinates), or sometimes a letter and a number, that locate a specific point on a grid, known as a coordinate plane. A coordinate plane has four quadrants and two axes: the x axis (horizontal) and y axis
As, we locate this coordinate in graph we can see the line will either rise from left to right or falls from right to left.
Hence, line that passes through the points (5, -7) and (a, -4) will rise from left to right.
Learn more about coordinates here:
https://brainly.com/question/12149933
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