Answer:
(A) = (3). (B) = (7). (C) = (6)
Can someone help me whit this?!?
The ratio of boys to girls who play kickball at recess is 6 to 2. There are 18 girls on the team. What is the number of boys who play kickball at recess?
Answer:
19.72
Step-by-step explanation:
because it just is i just did the quiz and it was right hope it helps
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Which question represents the equation for this graph? (Pls help I will mark brainliest)
Answer:
y = 2x - 3
i just know this is correct, so trust me :)
Helppppp me please I need help please
Answer:
bruh. this wat im working on too and need help also
Answer:
x = 3.6, the measure of the largest angle is 86.4
Step-by-step explanation:
15x + 24x + 21x = 180
50x = 180
180/50 = 3.6
x = 3.6
-------------------------
24x = 24(3.6)
24 * 3.6
86.4
select the correct answer. which expression is equivalent to this polynomial? 9x2 4 a. (3x 2i)(3x − 2i) b. (3x 2)(3x − 2) c. (3x 2i)2 d. (3x 2)2
The polynomial 9x^2 + 4 is equivalent to (3x+2i)(3x-2i). The answer is A.
Polynomials are algebraic expressions that consist of variables and coefficients where arithmetic operations can be performed.
A polynomial is expanded if no variable appears within parentheses and all like terms have been combined.
To expand a polynomial, multiply its factors (often by using the distributive property) or perform the indicated operations. Then combine all like terms.
Expanding each of the options provided using FOIL method:
a) (3x+2i)(3x-2i)
= 9x^2 - 2ix + 2ix - 4i^2
= 9x^2 - 4i^2 *(i^2 = -1) note that i is an imaginary number and i squared is equal to -1
= 9x^2 - 4(-1)
= 9x^2 + 4
b) (3x+2)(3x-2)
= 9x^2 + 6x - 6x - 4
= 9x^2 - 4
c) (3x + 2i)^2
= 9x^2 + 6ix + 6ix + 4i^2 *(i^2 = -1)
= 9x^2 + 12ix - 4
d) (3x + 2)^2
= 9x^2 + 6x + 6x + 4
= 9x^2 + 12x + 4
Hence, the polynomial 9x^2 + 4 is equivalent to (3x+2i)(3x-2i). The answer is A.
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BRAINLIEST!!!! plz help
Answer:
the answer is the first one. angle N congruent to angle Z. it's the angle that's between the two given sides
Step-by-step explanation:
42/12 - 85/25 + 117/30
Answer:
the answer is 4 it think it is correct
Answer:
4
Step-by-step explanation:
42/12=7/2
85/25=17/5
117/30=39/10
So
7/2-17/5+39/10
35-34+39/10
40/10
4
Find x if m/VUT = 175°, m/VUJ = 17x - 3, and m/JUT = 17x+8.
-
V
U
T
J
K
The value of x is 5.
Given that, m∠VUT = 175° , m∠VUJ = 17x-3 and m∠JUT = 17x+8.
The angle where two rays meet is represented as vertex.
Each and every vertex , where two rays meet have some angle between them.
The symbol that represents angle is, “∠”.
Here, you can deal with the angle and find the value of x by just equating the given equations upon the given angle m∠VUT = 175° .
we get,
m∠VUT = m∠VUJ + m∠JUT
175 = 17x-3 + 17x+8
175 = 34x + 5
175-5 = 34x
170 = 34x
170/34 = x
x = 5.
Therefore, the value of x is 5.
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Shondra is counting the money in the cash register at the end of her shift. All that is left to count are $5 bills and $10 bills. There are 32 bills in the stack and they are worth $220. How many of each denomination did she have?
Let x represent the number of $5 bills and let y represent the number of $10 bills.
Choose the 2 equations that would best represent this scenario and select the correct solution from the drop down list. You will select 3 answers in total.
Answer and Step-by-step explanation: x represent the number of $5 bills and y, the number of $10 bill and, in total there are 32 bills, so
x + y = 32
In terms of value, there is a total of $220. The equation for it is
5x + 10y = 220
The 2 equations which best represent the scenario are
x + y = 32 (I)
5x + 10y = 220 (II)
To know how many bills there are, we have to solve the system. There are many way to solve it and one of them is
1) Multiply (I) by -5:
-5x - 5y = -160 (III)
2) Add equation (III) to equation (II):
-5x - 5y = -160
5x + 10y = 220
0x + 5y = 60 (IV)
3) Solve equation (IV)
5y = 60
y = 12
4) Replace value of y in equation (I) and find value of x:
x + 12 = 32
x = 20
In the proposed scenario, Shondra had 20 $5 bills and 12 $10 bills.
Answer: x=20 and y=12
Step-by-step explanation:
if you asked people to give their age and you collected it as <5, 6-10, 11-15, 16- 20, 21-25, 26 and older, what type of variable is this?
If we asked people to give their age and you collected it as <5, 6-10, 11-15, 16- 20, 21-25, 26, and older, it is a type of Discrete variable.
What is a Discrete variable?A discrete variable is one whose value can be determined by counting. A continuous variable is one whose value can be determined through measurement. A random variable is one whose value is the numerical result of a random phenomenon. The possible values of a discrete random variable X are countable. As an example, It is a type of Discrete variable if we asked people their age and you collected it as 5, 6, 10, 11, 15, 16, 20, 21, 25, 26, and older. There are two types of quantitative variables: discrete variables and continuous variables. Counts are represented by discrete variables (e.g. the number of objects in a collection). Continuous variables represent quantifiable quantities (e.g. water volume or weight).Therefore, if we asked people to give their age and you collected it as <5, 6-10, 11-15, 16- 20, 21-25, 26, and older, it is a type of Discrete variable.
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A function rule takes an input, and converts it into an output, y, by decreasing twice the input by 4. what is the output for this rule when the input is 5?
Answer:
when the input = 4Then the output = 6Step-by-step explanation:
It is stated that a function rule takes an input, and converts it into an output, y, by decreasing twice the input by 4.
Let 'x' be the number
Decreasing twice the number 'x' by 4 = 2x-4
Now,
Given the input x = 5
As the output will decrease twice the input (x=5) by 4
Thus, the output = 2(5)-4 = 10-4 = 6
Therefore,
when the input = 4Then the output = 6The equation f(x)=3x can be written as x^3=k. Find the value of k
After solving the equation we get the value of k as ₋3, and also proved that the function is odd function.
Given the equation is f(x) =x³₋(k₊3) x²₊3x
also we know that the f(x) is an odd function, then by definition we write
f(₋x) = ₋f(x)
f(₋x) = (₋x)³ ₋ (k ₊ 3)(₋x)² ₊ 3(₋x)
= ₋ [x³ ₋ (k ₊ 3)x² ₊ 3x] = ₋x³ ₊ (k ₊ 3)x² ₋ 3x
(₋x)³ ₋ (k ₊ 3)(₋x)² ₊ 3(₋x) = ₋x³ ₊ (k ₊ 3)x² ₋ 3x
₋x³ ₋ kx² ₋ 3x² ₋ 3x = ₋x³ ₊ kx² ₊ 3x² ₋ 3x
₋kx² ₋ 3x² = kx² ₊ 3x²
2kx² ₊ 6x² = 0
2k + 6 = 0
k = -3
Therefore, k has the result of reducing f(x) to x³ ₊ 3x. When we examine this function to check if it's an odd function, we see that
(₋x)³ ₊ 3(₋x) = ₋x³ ₋ 3x = ₋ [x³ ₊ 3x]
Hence the value of k is ₋3 and the function is an odd function.
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Your Question is incomplete. Please find the missing content here.
If f(x) =x³₋(k₊3) x²₊3x and if f is an odd function, what is k?
for what real life situation might you calculate -8 + 12
Answer:
4
When u have a bank account and are 8 dollars below proficiency and you add 12 dollars to your bank accountStep-by-step explanation:
add 12 to -8
4
Answer: Where you are 8 meters below sea level and you have to rise 12 meters from 8 meters below sea level. Hope this helps!
Step-by-step explanation:
b-4/6=b/2 find the variable
please help i dont understand how to work this
Based on the given equation of b -4/6=b/2, the value of the variable b, can be found to be -2
What is the variable?The variable can be found by solving the equation through the operations of mathematics.
First, cross-multiply:
b -4/6 = b/2
b - 4 = 6b / 2
After cross-multiplying, collect like terms:
b - 4 = 3b
b - 3b = 4
-2b = 4
b = 4 / -2
b = -2
In conclusion, the variable is -2.
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25 is 32% of what number?
Oa. 120
b. 78.1
c. 65
O d. 8
Answer:
and conifer trees for any number (n) of rows of apple trees: X X X ... n Number of apple trees Number of conifer trees. 1. 1. 8. 2. 4. 16. 3. 9. 24. 4. 16. 32. 5. 25. 40 ... A 6 mg. B 12 mg. C 26 mg. D 32 mg. DRUG CONCENTRATIONS SCORING 2 ... Code 1: 65 zeds on a deck, 14 on wheels, 16 on trucks and 20 on hardware.
Step-by-step explanation:
Answer:
b. 78.1
Step-by-step explanation:
please hurry! brainliest if right!
Answer:
D. 5cm
Step-by-step explanation:
-20 points!! -
This is my last question until and I have like 6 minutes until the deadline!
Given:
The figure.
To find:
The value of a.
Solution:
We know that, in a right angled triangle
[tex]\tan \theta =\dfrac{Perpendicular}{Base}[/tex]
In the given triangle,
[tex]\tan (38^\circ) =\dfrac{6}{a}[/tex]
Multiply both sides by a.
[tex]\tan (38^\circ)\times a=6[/tex]
Divide both sides by [tex]\tan (38^\circ)[/tex]
[tex]a =\dfrac{6}{\tan (38^\circ)}[/tex]
The value of a is [tex]\dfrac{6}{\tan (38^\circ)}[/tex].
Therefore, the correct option is b.
Find the Volume, Of the shape
Answer:
V≈20.94
Step-by-step explanation:
The formula for solving the volume of a cone is V=πr^2(h/3).
Hope this helps and I hope u have an Amazing day!!
Help please! im struggling with all of these
Answer:
The first one is 6√10
The second one is −48√3
The last one is 28√2
Step-by-step explanation:
Janelle types at the rate of Syntax error from line 1 column 49 to line 1 column 73. Unexpected 'mathsize'. Of a page per minute. Which statement about Janelle is true? A) Janelle can type 8 pages in 1/3 of a minute B) Janelle can type 2 pages in 3/4 of a minute C) Janelle can type 1/2 page in 3/4 of a minute D) Janelle can type 1/4 of a page in 2/3 of a minute
Answer: D) Janelle can type 1/4 of a page in 2/3 of a minute
Step-by-step explanation:
Option A is wrong because based on the constraints, Janine would type less than 3/8 of a page in anything less than a minute. 8 > 3/8.
For that same reason, option B is wrong as well. 2 > 3/8.
1/2 > 3/8 so Option C is wrong for the same reason as the options above.
To test option D;
If Janine can type 3/8 of a page per minute, how much can she type in 2/3 minutes.
Assume the much she can type is x;
3/8 : 1
x : 2/3
1x = 3/8 * 2/3
x = 1/4
Option D is therefore correct.
Help me, but the answer is not E.
Answer:
40%
Step-by-step explanation:
To find the percentage difference between the families with 2 dogs and the families with no dogs, we need to find their difference first.
Difference = 45 - 27
= 18
Now that we know the difference, we just have to put the difference over the total as a fraction and multiply by 100%.
Percentage difference = [tex]\frac{18}{45}[/tex] × 100%
= 40%
Put these numbers in order, smallest to largest,
0.77
0.777
0.707
0,077
0.7
Answer:
0.07 0.77 0.77 0.707 0.777
Step-by-step explanation:
I think
I'll give brainliest to whoever answers the question correctly!
Which step in the proof has a flaw?
Answer:
reason 2
Step-by-step explanation:
Which graph represents -5x + 6y > 12?
Answer:
The graph should have a y intercept of 2, shaded to the upper left, and the lines are dotted.
Step-by-step explanation:
similar to this
You are designing a rectangular playground on your scale the verticals of the rectangle are (6,3), (6,5) and (8,3). What are the coordinates of the fourth vertex
Answer:
The coordinates of the fourth vertex are (8,5)
Step-by-step explanation:
We need to take note that a rectangle is a shape that has 4 sides, with two of them of equal length.
It will also help if we can visualize the points on the graph.
We are given the location of three of the four vertices. These are (6,3), (6,5) ,and (8,3). Let the 4th Vertice be (x,y)
The length of the triangle can be obtained by subtracting the y-coordinates of the vertices.
(6,3) - (6,5)
This will be +3 and +5
5-3 =2
Therefore, the length of the triangle is 2 units on the left side.
Recall that the length of the left side has to be equal to the length of the right side.
Therefore
y-3 =2
y = 5
We will repeat the same process to get the x-coordinate from the breadth
Breadth = 8-6 =2
x-6 =2
x=8
Hence the x = 8
Therefore, the coordinates of the fourth vertex are (8,5)
The variables x and y vary inversely. Use the given values to write an equation relating x and y. x=7/2 y=3/5
Answer:
x = 21/10yStep-by-step explanation:
If the variables x and y vary inversely, this is expressed as;
x ∝ 1/y
x = k/y
k is the constant of proportionality
Given;
x = 7/2 and y = 3/5
Substitute;
7/2 =k/(3/5)
Cross multiply
k = 7/2 * 3/5
k = 21/10
Substitute the value of k into the formula;
x = k/y
x = (21/10)/y
x = 21/10 * 1/y
x = 21/10y
Hence the equation relating x and y is x = 21/10y
Jose is making a model of an airplane that measures 34 feet tall and 108 feet long. If he uses a scale of 1:16, what will be the height and length of his
airplane? Round answers to the nearest hundredth if necessary.
The model will measure
feet tall and
feet long
Answer:
2 Height ft and 6.75 length ft
Step-by-step explanation:
You just decrease it to 1:16
so, 34:108 is 2:6.75 to be about the same size as 1:16
Perpendicular Lines
Instructions: Given the following image is a cube, name a segment that is
perpendicular to AH?
Answer:
HG
Step-by-step explanation:
Where they meet another line at a 90 degree angle.
The segment that is perpendicular to segment AH in the given cube is: HG.
What are Perpendicular Segments?When two segments form a right angle at the point of their interception, they are said to be perpendicular to each other.
In the image given, a right angle is formed where segments AH and HG meet. Therefore, a name of a segment that is perpendicular to AH is: segment HG.
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The point A (10,15) was dilated to become point A’ (4,6). What was the scale factor?
========================================================
Explanation:
Preimage = A = (10, 15)
Image = A' = (4, 6)
Divide the x coordinates of the image over preimage
4/10 = 0.4 is the scale factor
Or you could do the same for the y coordinates
6/15 = 0.4
A clothing store is running an offer on men's shirts. When two shirts are bought at regular price, the third shirt is 50% off. Jeremy decided to buy three shirts for his brother using the offer. The regular price for a shirt is $36.00. Based on a tax rate of 7.50% that is applied after the discount, Jeremy paid a total of $ 100 for three shirts, including tax.
Answer: $96.75
Step-by-step explanation:
Regular price is $36 and the third shirt will come at a 50% discount.
Total price for the 3 shirts is;
= 36 + 36 + (36 * 50%)
= $90
The total after-tax is;
= 90 * ( 1 + tax rate)
= 90 * ( 1 + 7.50%)
= $96.75
I am unsure what the question is but the total amount that Jeremy should pay is $96.75.