Step-by-step explanation:
2x3(3+1)x4+7-5
6(4)x4+2
24x4+2
96+2
98
hope this helps you
have a good day
I reallyyy just need the answer fast!
Answer:
68×32= 2176
Step-by-step explanation:
A 12-sided solid has faces numbered 1 through 12. a. Find the probability of rolling a number greater than 5. b. If the 12-sided solid is rolled 180 times, how many times would you expect either a 3, 9, or 11 to be rolled? Question content area bottom Part 1 a. The probability of rolling a number greater than 5 is
Answer:
1) first one is 7/12
the second one is 45
as the chance of getting a 3,9 or 11 is 3/12
So you do 3/12 x 180 = 540/12 which is simplified to 45.
A circular tablecloth has a diameter of 70 inches. Max wants to add a decorative fabric around the edge of the tablecloth.Approximately how many inches of the decorative fabric does Max need?Use 3.14 for π.
Answer:
219.8
Step-by-step explanation:
you multiply 70 and 3.14 and get 219.8
Answer:
The answer is 219.8
Step-by-step explanation:
I took the test
Do these numbers make a function why or why not?
Answer:
No, because it has repeating domains (x-values) which is -2
Step-by-step explanation:
A function should not have repeating x-values.
There are 6 lines. The 1st line has 9 people, 2nd line 11 people, 3rd 13 people.
how many people are in the 6th line? How many people are in the lines in total?
use arithmetic series to find how many people in 6th line
use finite series to find how many people in total
Answer:
first term :9=a
common difference: 2 =d
A6=a+5d
=9+5(2)
=19
no of terms =9
[tex]s{n} = \frac{n}{2} (a + an) \\ = \frac{6}{2} (9 + 19) \\ = 3(28) \\ = 84[/tex]
What is the probability that a person who is older than 35 years has a hemoglobin level between 9 and 11? A. 0. 257 B. 0. 284 C. 0. 312 D. 0. 356 E. 0. 548.
The probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is given by: Option B: 0.284 approx.
How to form two-way frequency table?Suppose two dimensions are there, viz X and Y. Some values of X are there as [tex]X_1, X_2, ... , X_n[/tex] and some values of Y are there as [tex]Y_1, Y_2, ... , Y_n[/tex]
List them in title of the rows and left to the columns. There will be [tex]n \times k[/tex] table of values will be formed(excluding titles and totals), such that:
Value(ith row, jth column) = Frequency for intersection of [tex]X_i[/tex] and [tex]Y_j[/tex] (assuming X values are going in rows, and Y values are listed in columns).
Then totals for rows, columns, and whole table are written on bottom and right margin of the final table.
For n = 2, and k = 2, the table would look like:
[tex]\begin{array}{cccc}&Y_1&Y_2&\rm Total\\X_1&n(X_1 \cap Y_1)&n(X_1\cap Y_2)&n(X_1)\\X_2&n(X_2 \cap Y_1)&n(X_2 \cap Y_2)&n(X_2)\\\rm Total & n(Y_1) & n(Y_2) & S \end{array}[/tex]
where S denotes total of totals, also called total frequency.
n is showing the frequency of the bracketed quantity, and intersection sign in between is showing occurrence of both the categories together.
How to calculate the probability of an event?Suppose that there are finite elementary events in the sample space of the considered experiment, and all are equally likely.
Then, suppose we want to find the probability of an event E.
Then, its probability is given as
[tex]P(E) = \dfrac{\text{Number of favorable cases}}{\text{Number of total cases}} = \dfrac{n(E)}{n(S)}[/tex]
where favorable cases are those elementary events who belong to E, and total cases are the size of the sample space.
The missing frequency table is attached below. If we name events as:
A = event that the person selected randomly would be older than 35 yearsB = event that the randomly selected person would be having hemoglobin between 9 and 11Then, the needed probability is P(B|A) (as it is already specified that the person would be older than 35 years.)
Using the table, we get:
[tex]P(A) = \dfrac{\text{Total person who are older than 35 years age}}{\text{Total person in survey}}\\\\P(A) = \dfrac{162}{429} \approx 0.3776[/tex]
Using the table, we get the value on the place where A and B both occur(when person selected is older than 35 years and have hemoglobin between 9 and 11 ) as:
[tex]n(A \cap B) = 162 - 40 - 76 = 46[/tex]
Thus, we get:
[tex]\\\\P(A\cap B) = \dfrac{\text{Total person older than 35 years age and have hemoglobin level between 9 and 11}}{\text{Total person in survey}}\\\\P(A \cap B) = \dfrac{46}{429} \approx 0.1072[/tex]
Using the chain rule, we get:
[tex]P(B|A)P(A) = P(A\cap B)\\\\P(B|A) = \dfrac{P(A \cap B)}{P(A)} = \dfrac{0.1072}{0.3776} \approx 0.284[/tex]
Thus, the probability that a person who is older than 35 years has a hemoglobin level between 9 and 11 is given by: Option B: 0.284 approx.
Learn more about probability here:
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Given f(x)= 1/1-x and g(x)= x-1/x
find
f of g
g of f^-1
g^-1
Answer:
[tex]f(g(x))=x[/tex]
[tex]g(f^{-1}(x))=\dfrac{-1}{x-1}[/tex]
[tex]g^{-1}(x)=\dfrac{1}{1-x}[/tex]
Step-by-step explanation:
[tex]f(x)=\dfrac{1}{1-x} \ \ \textsf{and} \ \ g(x)=\dfrac{x-1}{x}[/tex]
[tex]f(g(x))=\dfrac{1}{1-(\frac{x-1}{x})}[/tex]
[tex]\implies f(g(x))=\dfrac{1}{\frac{x}{x}-\frac{(x-1)}{x}}[/tex]
[tex]\implies f(g(x))=\dfrac{1}{\frac{x-x+1}{x}}[/tex]
[tex]\implies f(g(x))=\dfrac{1}{\frac{1}{x}}[/tex]
[tex]\implies f(g(x))=x[/tex]
[tex]x=\dfrac{1}{1-y}[/tex]
[tex]\implies 1-y=\dfrac{1}{x}[/tex]
[tex]\implies y=1-\dfrac{1}{x}[/tex]
[tex]\implies f^{-1}(x)=1-\dfrac{1}{x}[/tex]
[tex]g(f^{-1}(x))=1-\dfrac{1}{1-\frac{1}{x}}[/tex]
[tex]\implies g(f^{-1}(x))=1-\dfrac{1}{\frac{x-1}{x}}[/tex]
[tex]\implies g(f^{-1}(x))=1-\dfrac{x}{x-1}[/tex]
[tex]\implies g(f^{-1}(x))=\dfrac{x-1-x}{x-1}[/tex]
[tex]\implies g(f^{-1}(x))=\dfrac{-1}{x-1}[/tex]
[tex]x=\dfrac{y-1}{y}[/tex]
[tex]\implies xy=y-1[/tex]
[tex]\implies 1=y-xy[/tex]
[tex]\implies 1=y(1-x)[/tex]
[tex]\implies y=\dfrac{1}{1-x}[/tex]
[tex]\implies g^{-1}(x)=\dfrac{1}{1-x}[/tex]
Jane received a $50.00 gift card for a photo center. She used it to buy prints that cost 15 cents each. The remaining balance, B (in dollars), on the card after buying x prints is given by the following.
What is the remaining balance on the card if Jane bought 20 prints?
a math class has 12 female students. Out of the total 20 students in the class, what is the probability of randomly selecting a male student from the class.
Answer:
8 out of 20 or 2 out of 5(both anwsers are correct)
A shop sells 2 brands of sunflower seeds. Brand A's package is in the shape of a cone with radius 2.5 centimeters and height 10 centimeters. Brand B's package is in the shape of a square prism. The prism's height is 2.5 centimeters, and each side of the base measures 5 centimeters.
Which package contains more seeds? Explain it show your reasoning.
The square prism would contain more seed than the cone because it has a larger volume.
VolumeVolume is the amount of space occupied by a three dimensional shape or object.
The volume of cone = (1/3) * π * radius² * height = (1/3) * π * 2.5² * 10 = 65.45 cm³
The volume of square prism = base² * height = 5² * 2.5 = 62.5 cm³
The square prism would contain more seed than the cone because it has a larger volume.
Find out more on Volume at: https://brainly.com/question/1972490
In a bag of counters 2/5 are blue. 18 are blue.
Work out the total number of counters in the bag.
Answer:
45 is the answer I think I don't know
5 million and 300 in standard form
Can you guys please help ( for did the letter half cut out is Y
Answer:
\overline{OQ}
OQ
. Given OQ=2x,OQ=2x, OP=x,OP=x, and PQ=10,PQ=10, determine \overline{OQ}.
Oq
If you add Natalie's age and Fred's age, the result is 36. If you add Fred's age to 4 times Natalie's age, the result is 72. Write and solve a system of equations to find how old Fred and Natalie are.
The known facts
the sum of Natalie's age and Fred's age is 36the sum of Fred's age times four and Natalie's age is 72Now, let's set up the equations where N is Natalie's age and F is Fred's age.
N + F = 36 ---- equation 1
N + 4F = 72 ---- equation 2
equation 2 minus equation 1 ---> 3F = 36 ---> F = 12, thus N = 24
Thus Fred is 12 years old, and Natalie is 24 years old.
Answer:
in this problem, we are going to translate our words into a mathematical equation, solve the equation and then answer the question. So we have, the father is three years older than the mother, so is three, is our answer there for this equation. So if we take the oldest minus the youngest, It would give us a difference of three. So since the father is older, we're going to say the father's age minus the mother's age is three, So we know that the mother is 42 years old, So the father minus the 42 would give us three. So to solve for F, we're going to use the addition property of equality and add 42 to both sides. So F -40 to plus 42 is F and Add 42 to both sides, and three plus 42 is 45. So this means that the father is 45 years old.
Step-by-step explanation:
Mark me brainliest!!
1/4 and 2/5 as a ratio simplest form
Answer:2/16
Step-by-step explanation:
~Shoto Todoroki here~
Answer:
5:8hope this helps :))
What are the dimensions of a rectangle with an area of 45 square inches and a perimeter of 28 inches? A) 8 in. x 6 in.B) 9 in. x 5 in.C) 7 in. x 7 in.D) 15 in. x 3 in.
[tex]\\ \rm\Rrightarrow 2x+2y=28[/tex]
[tex]\\ \rm\Rrightarrow x+y=14[/tex]--(1)
And
xy=45[tex]\\ \rm\Rrightarrow (x-y)^2=(x+y)^2-4xy[/tex]
[tex]\\ \rm\Rrightarrow (x-y)^2=14^2-4(45)=196-180[/tex]
[tex]\\ \rm\Rrightarrow (x-y)^2=16[/tex]
[tex]\\ \rm\Rrightarrow x-y=4[/tex]--(2)
Adding (1) and (2)
2x=18x=9And
9+y=14=>y=5Answer:
B) 9 in x 5 in
Step-by-step explanation:
Let W = width of rectangle
Let L = length of rectangle
Area of a rectangle = WL
Perimeter of a rectangle = 2W + 2L
Given area = 45 and perimeter = 28:
⇒ WL = 45
⇒ 28 = 2W + 2L
Rewrite 28 = 2W + 2L to make W the subject:
⇒ 2W = 28 - 2L
⇒ W = 14 - L
Substitute W = 14 - L into WL = 45 and solve for L:
⇒ (14 - L)L = 45
⇒ 14L - L² = 45
⇒ L² -14L + 45 = 0
⇒ (L - 9)(L - 5) = 0
⇒ L = 9, L = 5
Substitute found values of L into W = 14 - L and solve for W:
⇒ W = 14 - 9 = 5
⇒ W = 14 - 5 = 9
As width < length, length = 9 in and width = 5 in
Smith Automotive needs to hire a new mechanic. They decide to place an
ad in the Springfield Herald. A classified ad in the Springfield Herald costs
$45 for the first five lines. There is a charge of $5 for each additional line.
Answer:
y = 45 + 5(x - 5)
where y is the total cost of the ad, and x is the total number of lines in the ad
Step-by-step explanation:
Let x = number of lines in the ad
Let y = total cost
If the cost of the ad is $45 for the first 5 lines and $5 for each additional line then the expression for the total cost of the ad is:
y = 45 + 5(x - 5)
Answer:
equation: y = 5(x-5) + 45
Explanation:
Here "y" represents the total money earned. "x" represents the earning from additional line. the constant variable is "45" and does not change.
Factor: 28k^3-24k^2+49k-42
I will give Brainliest to the first person :)
the answer is: (7k−6)(4k²+7)
A side of a square garden is represented by the expression 2s + 5. Which expression represents the area of the garden?
Answer:
(2s + 5) × (2s + 5)or(2s + 5)²Step-by-step explanation:
A side of a square garden is represented by the expression 2s + 5. Which expression represents the area of the garden?
Area = s * s ( side x side or side²)
(2s + 5) * (2s + 5)
or
(2s + 5)²
Randy has 25% more money than Sandy, and 20% more money than Mandy, who has
$1800. How much money does Sandy have?
Based on the amount of money that Randy has more than Sandy and Mandy, the amount that Sandy has is $1,728.
First find out how much Randy has.
How much does Randy have?This can be found as:
= Amount that Mandy has x ( 1 + 20%)
= 1,800 x 1.2
= $2,160
How much does Sandy have?The amount that Sandy has is:
= Amount Randy has / ( 1 + 25%)
= 2,160 / 1.25
= $1,728
In conclusion, Sandy has $1,728.
Find out more on percentages at https://brainly.com/question/990406.
HI PLEASE HELP PLEASE PLEASE PLEASE
Answer:
Step-by-step explanation:
25) hypotenuse² = base² + altitude²
= 10² + 8²
= 100 + 64
= 164
hypotenuse = √164 = 12.8
Perimeter = 10 +8 + 8 + 12.8 + (12.8 -10)
= 10 + 8 + 8 + 12.8 + 2.8
= 41.6
Is 1000 a term in the sequence 50,65,80,95
Find the product of (x − 9)2 and explain how it demonstrates the closure property of multiplication. X2 − 81; is a polynomial x2 − 81; may or may not be a polynomial x2 − 18x 81; is a polynomial x2 − 18x 81; may or may not be a polynomial.
Answer:
should be C
Step-by-step explanation:
Answer:
C
Step-by-step explanation: took the test
Caleb started with 50 bacteria for his science experiment and they doubled in one day. Jenna also started with 50 bacteria for her experiment and after one day, her number of bacteria was equal to 50 to the second power. Choose the statement that is true for the number of bacteria after one day.
A. Caleb's experiment had 100 bacteria and Jenna's experiment had 250 bacteria.
B. Caleb's experiment had 100 bacteria and Jenna's experiment had 2,500 bacteria.
C. Caleb's experiment had 500 bacteria and Jenna's experiment had 500 bacteria.
D. Caleb's experiment had 250 bacteria and Jenna's experiment had 500 bacteria.
PLEASE HELP ME
Answer:
B. Caleb's experiment had 100 bacteria and Jenna's experiment had 2500 bacteria.
Step-by-step explanation:
[tex]\displaystyle Jenna \hookrightarrow 2500 = 50^2 \\ Caleb \hookrightarrow 100 = [2][50][/tex]
Take a clocer look at the keywourds next to each name. When you square a quantity, you duplicate and multiply it, but when you double a quantity, you multiply by two.
I am joyous to assist you at any time.
Solve the following quadratic
2(x^2-6)+8=10
Step-by-step explanation:
i hope its clear enough and that it helps
Here's a pic. hope it helps
If you launch the cannonball from the ground instead (hi=0), what does that change in the original equation?
Answer:
the value of hi changes from 58 to 0:
h(t) = -4.9t^2 +19.8t
Step-by-step explanation:
If the initial height changes, then the term in the equation that represents that height will change. The initial height term is hi, so it changes from 58 to 0.
[tex]h(t)=-4.9t^2+19.8t+0\\\\\boxed{h(t)=-4.9t^2+19.8t}[/tex]
4(2x+2)=8(2-3x)
Solve for x
Answer:
x would equal 1/4
x = 1/4
Step by step:
1. Distribute the equation on the left 4(2x+2). That would equal 8x+8 when you multiply 4 · 2x and 4 · 2
2. Rearrange the terms for the equation on the left side 8(2-3x). It should be 8(-3x+2)
3. Now distribute the left side. 8(-3x+2) = -24x+16
4. Now subtract 8 from both sides of the equation ( 8x+8-8 ) = (-24x+16-8)
You should get 8x= -24x+8
5. Now add 24x to both sides ( 8x+24x = -24x+8+24x )
6. Combine the like terms (8x+24x = 32x = 8)
7. Divide both sides by 32. 32/32 and 8/32
And that should get you 1/4
Hope the explanation helped
Answer:
x = 0.25
Step-by-step explanation:
The first step for this problem is to multiply (2x+2) by 4 and (2-3x) by 8:
4(2x+2) = 8x+8
8(2-3x) = 16-24x
The equation becomes: 8x+8 = 16-24x
The second step for this problem is to move the terms with x to one side of the equals sign, and to move the terms without x to the other side.
8x+8 = 16-24x
8x+24x = 16-8
The third step is to combine like terms.
8x+24x = 32x
16-8 = 8
The equation becomes 32x = 8
The final step is to divide 8 by 32 to isolate the x:
32x = 8
x = 8/32 = 1/4 = 0.25
casey has the forgotten combination to a lock. the lock has three dials with numbers 1, 2, and 3 What is the probability that the combination starts with 2?
The probability that the combination starts with 2 is 1/3
ProbabilityProbability is the likelihood or chance that an event will occur.
Probability = expected/total outcome
The total outcome = 3! = 6
The expected outcome if the combination starts with 2 is given as 2! = 2
Pr(the combination starts with 2) = 2/6 = 1/3
Hence the probability that the combination starts with 2 is 1/3
Learn more on probability here: https://brainly.com/question/25870256
tickets for a school concert are $10 for adults and $5 for students.Write an expression that shows the total income for the school concert.
Amount of money made by adult ticket = 10x
Amount of money made by student ticket = 5y
Total amount made = 10x + 5y
Hope that helps!
y represents the number of adults
x represents the number of students
THIS IS AN EXPRESSION SO THERE IS NO EQUAL SIGN!!!
ANSWER: 10y+5x
Find H of the shape.
Answer: 12
Step-by-step explanation: V of prism = S of triangle*Height of prism
height of prism is 30
S of triangle = a/2*h( a =18 cm)
3240=30*(18/2)*h
h=3240/(9*30)=12
Two ways are there
Solve through volumeSolve through Pythagorean theoremMake it simple, go through second way
Base=18/2=9cm[tex]\\ \rm\Rrightarrow h^2=15^2-9^2[/tex]
[tex]\\ \rm\Rrightarrow h^2=225-81[/tex]
[tex]\\ \rm\Rrightarrow h^2=144[/tex]
[tex]\\ \rm\Rrightarrow h=12cm[/tex]
