a survey of reading habits of 100 students showed that 30 read both comics and novels. 10 read neither comics nor novels and twice as many students read comics as read novels. 1. illustrate the information on a Venn diagram. 2. how many students read only novels. 3. how many students read comics. 4. how many students read only one type of book.
Answers
2. We can use an equation for this
100 students - both - nether = 60
lets make x = novels, so comics is 2*x
60 = 2x + x
60 = 3x
x = 20 so 20 people read novels meaning:
3. That 40 people read comics (this can also be done by making x = comics and novels = x/2)
4. This just asks for total of comics only and novels only. We can add up our two previous values or be smart and know that we already calculated that sum as 60 [look back ;) ]
Related Questions
PLEASE HELP
What is the area of the polygon below?
A. 225 square units
B. 140 square units
C. 115 square units
D. 170 square units
Answers
Yung is designing a flashlight that uses a parabolic reflecting mirror and a light source. The shape of the mirror can be modeled by x^2= 8 y, where x and y are measured in inches. What is the focus point of the flashlight?
(–2, 0)
(0, –2)
(0, 2)
(2, 0)
Answers
so
(x-h)^2=4p(y-k)
(h,k) is vertex
p is distance from directix to vertex, also distance from focus point to vertex
given
(x-0)^2=4(2)(y-0)
since x is the square term, the parabola opens up or down
center is (0,0)
the distance to the focus is 2 units
since 2 is positive, it opens up, meaning the focus is above the vertex
the focus is 2 units above (0,0)
te focus is (0,2)
answer is 3rd option
Answer:
it's c on edge your welcome
Convert 2.4 kg into cg. Please show your work.
Answers
kilo -> 1000
centi -> 100
2.4 x 1000 g = 24 x 100 g.
So, on the left we have 2.4 kg, and on the right we have 24 cg
I hope my solutions has come to your help. Thank you and have a nice day ahead!
What is the value of 6x2 – 4x when x = 5?
Answers
Final answer:
To calculate 6x^2 – 4x when x = 5, you square 5 to get 25, multiply by 6 to get 150, then subtract 4 times 5 which is 20, resulting in a final value of 130.
Explanation:
To find the value of the expression 6x^2 – 4x when x = 5, you need to substitute 5 for x in the expression and perform the arithmetic. First, calculate the value of 6x^2 by squaring x (which is 5) and multiplying by 6:
6 * 5^2 = 6 * 25 = 150.
Next, calculate the value of 4x when x is 5:
4 * 5 = 20.
Now subtract the result of 4x from the result of 6x^2:
150 - 20 = 130.
So, the value of the expression when x = 5 is 130.
Find the greatest common monomial factor : 4a^5b^2 and ab
Answers
ab=a*b
greatest factor is ab
Which of the expressions are NOT polynomials? Check all that apply.
A. x^2-(square root of x)-3
B. 4 - 3x + 5x^6
C. 5x^1/2 + 4x^2
D. 14x^7
E. x^2-x-12/x+3
F. 8x^10 + 2x^5 ...?
Answers
A. x^2-(square root of x)-3
C. 5x^1/2 + 4x^2
E. x^2-x-12/x+3
(method: check polynomials lesson)
Answer:
A, C, E are not polynomials
Step-by-step explanation:
Identify the expressions that are not polynomials
A. x^2-(square root of x)-3
Polynomial cannot have a square root. so it is not polynomial
B. 4 - 3x + 5x^6
C. 5x^1/2 + 4x^2
A polynomial does not have fractional exponent
D. 14x^7
E. x^2-x-12/x+3
Polynomial cannot have x in the denominator
F. 8x^10 + 2x^5
Fiona wrote the linear equation y = 2/5 X -5. When Henry wrote his equation they discovered that his equation had all the same Solutions as fionas. which equation could have been Henry's.
A. X- 5/4y =25/4
B. X-5/2y=25/4
C. X-5/4y =25/4
D. X- 5/2y=25/2
Answers
To determine which equation could have been Henry's, we need to compare it to Fiona's equation. Option C, x - (5/4)y = 25/4, has the same solutions as Fiona's equation and could have been Henry's equation.
Explanation:To determine which equation could have been Henry's, we need to compare it to Fiona's equation, y = (2/5)x - 5. Henry's equation should have the same solutions as Fiona's, which means it should have the same slope and y-intercept.
Comparing the options:
A. x - (5/4)y = 25/4: This equation does not have the same slope as Fiona's. B. x - (5/2)y = 25/4: This equation has the same slope but a different y-intercept from Fiona's.C. x - (5/4)y = 25/4: This equation has the same slope and y-intercept as Fiona's.D. x - (5/2)y = 25/2: This equation does not have the same slope as Fiona's.Only option C, x - (5/4)y = 25/4, has the same solutions as Fiona's equation. Therefore, it could have been Henry's equation.
A population of rabbits doubles evey 4 months. if the population starts out with 8 rabbits how many rabbits will there be in 1 year
Answers
So, the expression would be: n³
n = number of rabbit at starting point = 8
So, after 1 year, it would be = 8³ = 512
So, your final answer is 512
Hope this helps!
Two numbers add to 436 and the first is 34 bigger than the second. what are the two numbers?
Answers
You want to buy a new camera. The sale price is $129. The sign says that this is $45 less than the original cost. What is the original cost of the camera.
Answers
129=original-45
add 45 to both sides
174=original
the camera originally cost $174
45+129=174
The camera originally costed $174.
A scout troop is collecting aluminium cans for charity. Their goal is to collect at least the number of cans they collected last year, 5,489, in 6 months. Approximately how many cans does the scout troop need to collect every month to meet their goal?
Answers
When writing linear equations, how do you determine which form of a line to use?
Answers
When given a point and the intercept, use slope-intercept form.
When given a point and the slope, use point slope form.
Jane sells 8 times as many Volvos as Melissa. If the difference in their sales is 35, how many cars did Jane sell?
Answers
Melissa sold 5 Volvos. Given that Jane sold eight times as many Volvos as Melissa, Jane sold 40 Volvos.
Explanation:In order to solve this problem, we can use a simple equation. Let's denote the number of Volvos Melissa sold as 'x'. Since Jane sells 8 times as many Volvos as Melissa, the number of Volvos Jane sold can be denoted as '8x'. We know from the problem that the difference between the number of cars Jane and Melissa sold is 35, so we can write the equation like this: 8x - x = 35.
By simplifying the equation, we get 7x = 35. Therefore, to find the value of 'x', we divide 35 by 7, which gives us 'x' equals to 5.
But 'x' is the number of Volvos Melissa sold. To find out the number of cars Jane sold, we multiply 'x' by 8. Which gives us 5 multiplied by 8 equals to 40 cars.
Learn more about Mathematical Problem Solving here:https://brainly.com/question/32199704
#SPJ2
Rewrite the radicand as two factors, one of which is a perfect cube.
Answers
replace this in cuberoot
Answer:
[tex]\sqrt[3]{373248}=\sqrt[3]{18^{3}*64}\\[/tex]
Step-by-step explanation:
A Perfect Cube is an integer number multiple of three that can be expressed as a product of prime factors raised to 3rd power. We have many Perfect Cubes, such as:
15³=3³x5³, and 15 ∈ ={1,3,6,9,12,15,18,..} so 15 is a perfect cube
18³=2³x3³x3³ and 18 ∈ ={1,3,6,9,12,15,18,..} so 18 is a perfect cube.
Finally, for instance, we can rewrite the number 373248 as
cubic root of 18³ times 64. 18 is a perfect cube 64 is not a perfect cube for 64 =[tex]2^{6}[/tex]
Jessica gets her favorite shade of purple paint by mixing 1/3 cup of blue paint with 1/2 cup of red paint. How many cups of blue and red paint does Jessica need to make 20 cups of her favorite purple paint?
Answers
To make 20 cups of Jessica's favorite purple paint, she needs approximately 6.67 cups of blue paint and 10 cups of red paint.
Explanation:To find the number of cups of blue and red paint Jessica needs to make 20 cups of her favorite purple paint, we need to set up a proportion based on the ratios of blue paint and red paint in her favorite shade.
Since Jessica uses 1/3 cup of blue paint and 1/2 cup of red paint to make her favorite shade, we can set up the proportion:
1/3 cup of blue paint / 1/2 cup of red paint = x cups of blue paint / 20 cups of purple paint.
To solve for x, we can cross multiply and divide:
x = (1/3 cup of blue paint)(20 cups of purple paint) / (1/2 cup of red paint) = 20/3 = 6.67 cups of blue paint.
So, Jessica needs approximately 6.67 cups of blue paint and 10 cups of red paint to make 20 cups of her favorite purple paint.
Suppose that $14,000 is invested in a savings account paying 5.2% interest per year.
(a) Write the formula for the amount A in the account after t years if interest is compounded monthly.
Answers
P=$14000, R=5.2%, t=t/12
hence
A=14000(1+5.2/100)^(t/12)
=14000(1.052)^t/12
Indicate the method you would use to prove the two 's . If no method applies, enter "none".SSS
SAS
ASA
None
Answers
3 same angle one same side
ASA
Answer:
C) ASA
Step-by-step explanation:
Let's name the first triangle ABC and the second triangle DEF.
Statement Reason
∠A ≅∠D Given
AB ≅DE Given
∠B ≅ ∠E Given
In two triangles, if the two angles and the included side of the two triangles are congruent, then the triangles are congruent by the property ASA (Angle-Side-Angle) using corresponding parts of congruent triangles are congruent.
According to the given triangles, the two triangles are congruent by the property of ASA.
Suppose you take an 80 question mc test with 5 choices if 60% is passing, what are your chances of passing
Answers
;)
what is the limit as x approaches negative infinity of (1.001)^x ...?
Answers
The limit as x approaches negative infinity of (1.001)^x is 0, because as we raise a number slightly larger than 1 to increasingly negative exponents, the results get closer and closer to zero.
The student is asking about the limit of a function as x approaches negative infinity, specifically for the function (1.001)^x. When evaluating this limit, it is essential to understand how exponential functions behave as the exponent becomes very large or very negative. Since 1.001 is greater than 1, raising it to increasingly negative exponents will result in values that approach zero. Therefore, the limit as x approaches negative infinity of (1.001)^x is 0.
Understanding the behavior of functions at infinity can be connected to the general concept where, for example, the reciprocal of a number as it approaches zero from the positive side (1/x) goes to positive infinity and from the negative side (1/x) goes to negative infinity. However, when evaluating the limit at negative infinity for our function, we must consider the base of the exponential function, which dictates that the function's values descend towards zero.
Factor the common factor out of 8x3 12x.
a. 4x(2x2 3)
b. x(x2 3)
c. 4x2(2x3 3)
d. 4x(6x2 3)
Answers
Answer:
A. [tex]4x(2x^2+3)[/tex].
Step-by-step explanation:
We have been given an expression [tex]8x^3+12x[/tex]. We are asked to factor our given expression.
We can see that both terms of our given expression share a common factor that is 4x.
Upon factoring out 4x from our given expression, we will get:
[tex]4x(2x^2+3)[/tex]
Therefore, the factored form of our given expression would be [tex]4x(2x^2+3)[/tex] and option A is he correct choice.
a bowling ball weighs 48 N. With what net force must it be pushed to accelerate it at 3.0 m/s2
Answers
Since weight force is 48N, and acceleration due to gravity is 9.8 m/s^2,
weight force = mass*acceleration due to gravity,
mass = weight/acceleration
mass = 48N / 9.8 m/s^2
mass = 4.9 kg
Now you find the force needed to accelerate to 3.0 m/s^2.
Force = mass*acceleration
Force = 4.9kg * 3.0 m/s^2
Force = 14.7 N
Final answer:
The net force required to accelerate a bowling ball weighing 48 N at 3.0 m/s² is 14.7 N, which we round to 15 N using two significant figures.
Explanation:
To find the net force required to accelerate the bowling ball at 3.0 m/s², we can use Newton's second law of motion, which states that the net force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma). First, we need to determine the mass of the bowling ball. Since the weight of the bowling ball is given as 48 N and weight can be calculated by multiplying mass with the acceleration due to gravity (weight = mass × gravity), we can find the mass (m = weight / gravity). Assuming the acceleration due to gravity is 9.8 m/s², the mass of the bowling ball would be approximately 4.9 kg (48 N / 9.8 m/s²). Next, we apply Newton's second law to find the net force required for the 3.0 m/s² acceleration by multiplying the mass by the desired acceleration (F = ma).
The calculation is as follows:
F = ma = 4.9 kg × 3.0 m/s² = 14.7 N
Therefore, a net force of 14.7 N must be applied to the bowling ball to achieve the acceleration of 3.0 m/s². We typically round this to two significant figures, giving a final answer of 15 N.
Which values are solutions to the inequality below?
Check all that apply. >10
A. 120
B. 5
C. 100
D. 567
E. 101
F. 19
Answers
A, C, D, E, F are all greater than 10.
Small trick in remember is the open face of a greater than or less than sign wants to "eat" the larger number. i.e. 100 > 10 or 43 < 68
Find all theta in the interval [0, 2pi) that satisfy the equation.
2costheta*tantheta + tantheta = 0
Answers
Therefore, [tex]\theta=0, \pi,2\pi ,\frac{2\pi}{3} , \frac{4\pi}{3}[/tex]
PLEASE HELP!!!
The grams of sugar per serving for three brands of cereal are 4g,8g, and 16g. The probability of choosing a cereal with 4 grams of sugar is 1/4. The probability of choosing a cereal with 8 grams of sugar is 5/8. The probability of choosing a cereal with 16 grams of sugar is 1/8.
What is the expected value of the number of grams of the sugar in cereal?
A 6
B 7
C 8
D 9
Answers
Answer: The expected value of the number of gram of the sugar in the cereal is 8 grams.
Step-by-step explanation:
When we multiply each of the possible outcomes by the likelihood each outcome will occur and find out the sum of the all values, we get the expected value of an experiment.
Here, the probability of the different brands 4g, 8g and 16g are 1/4, 5/8 and 1/8 respectively.
Thus, by the above definition,
The expected value of the number of grams of the sugar in the cereal = 4 g × its probability + 8 g × its possibility + 16 gram × Its possibility,
[tex]=4\times \frac{1}{4}+8\times \frac{5}{8}+16\times \frac{1}{8}[/tex]
[tex]=1+5 +2 = 8[/tex]
Thus, The expected value of the number of gram of the sugar in the cereal is 8 grams.
The expected value of the number of grams of sugar in cereal is 8 grams and this can be determined by using the given data.
Given :
The grams of sugar per serving for three brands of cereal are 4g, 8g, and 16g.The probability of choosing a cereal with 4 grams of sugar is 1/4. The probability of choosing a cereal with 8 grams of sugar is 5/8. The probability of choosing a cereal with 16 grams of sugar is 1/8.The following steps can be used in order to determine the expected value of the number of grams of the sugar in cereal:
Step 1 - The probability concept can be used in order to determine the expected value of the number of grams of sugar in the cereal.
Step 2 - According to the given data, the probability of choosing a cereal with 4 grams of sugar is 1/4, the probability of choosing a cereal with 8 grams of sugar is 5/8, and the probability of choosing a cereal with 16 grams of sugar is 1/8.
Step 3 - So, the expected value of the number of grams of the sugar in cereal is:
[tex]\rm Total \;number \;of\; grams\; of\; sugar=4\times \dfrac{1}{4}+8\times \dfrac{5}{8}+16\times \dfrac{1}{8}[/tex]
Step 4 - Simplify the above expression.
Total number of grams of sugar = 8 grams
Therefore, the correct option is C).
For more information, refer to the link given below:
https://brainly.com/question/795909
Find the equation of a line that satisfies the given conditions; x-intercept = 2, and y-intercept = -8
Answers
y-intercept = (0 , -8)
Slope of the line:
m = (-8 - 0) / (0 - 2)
m = 4
y = 4x - 8
The equation of a line with an x-intercept of 2 and a y-intercept of -8 is y = 4x - 8, which follows from applying the slope-intercept form and calculating the slope based on the intercepts.
To find the equation of a line with an x-intercept of 2 and a y-intercept of -8, we use the slope-intercept form of a line, which is y = mx + b, where m is the slope and b is the y-intercept.
We can determine the slope by recognizing that the line crosses the x-axis at (2,0) and the y-axis at (0,-8).
The slope m is the rise over the run, which in this case is (-8 - 0) / (0 - 2) = 4.
Therefore, the equation of the line is y = 4x - 8.
This equation satisfies the given conditions, as plugging in x = 0 gives the y-intercept of -8 and setting y to 0, and solving for x yields the x-intercept of 2.
Write the ratio 12 dogs out of 20 pets as a fraction in simplest form.
Answers
Simplest form is 3:5
What is 86.69 rounded to the nearest dollar?
Answers
Since the 6 in the tenths place is bigger than 5, the 6 in the ones place will go up one.
Answer:
87
The standard form of the equation of a parabola is x = y2 + 10y + 22. What is the vertex form of the equation?
Answers
Answer:
The vertex form of the parabola is [tex]x=(y+5)^2-3[/tex]
C is the correct option.
Step-by-step explanation:
The standard form of the parabola is [tex]x=y^2+10y+22[/tex]
We can write this equation in vertex form by using the completing square method.
For the expression [tex]y^2+10y[/tex], the value of b is 10.
Hence, add and subtract [tex](\frac{10}{2})^2=25[/tex] to the right side of the equation.
Thus, the equation becomes
[tex]x=y^2+10y+25-25+22[/tex]
Now, the expression [tex]y^2+10y+25=(y+5)^2[/tex]
Hence, we have
[tex]x=(y+5)^2-25+22[/tex]
We can simplify further as
[tex]x=(y+5)^2-3[/tex]
Hence, the vertex form of the parabola is [tex]x=(y+5)^2-3[/tex]
C is the correct option.
Sams dog weighs 72 pounds. the vet suggests that for the dogs health tis weight should decrease by 12.5 percent. according to the vet what is a healthy weight for the dog?
Answers
It would be: x*87.5 / 100 = 72
x = 7200/87.5
x = 82.285
So, your final answer is 82.285
what is the slope of the line 3x-4y=7
Answers
3x-4y=7
3x-7=4y
y=[tex] \frac{3}{4} [/tex]x - [tex] \frac{7}{4} [/tex]
slope is [tex] \frac{3}{4} [/tex]