[tex]72 = 2^{3} x 3^{2}[/tex]
(8 x 9 = 72)
What is 4 to the 10 power?
Answer
40
Step-by-step explanation:
Because this saying to the tenth power is representing that 4 timesing it self by 10 so if 40 is answer then do that because 4 x 10=40
4 x 1=4
4 x 2=8
4 x 3=12
4 x 4=16
4 x 5=20
4 x 6=24
4 x 7=28
4 x 8=32
4 x 9=36
4 x 10=40 See there you go have a great day hope this helps:)
The coffee shop is offering every 5th drink for 40% off. If my 9 friends and I each order a coffee that cost $4. 00 and we pay together, what will our total be?
Cindy is baking a 2-layer cake. The top layer has a diameter of 8 inches and the bottom layer has a diameter of 10 inches. What is the difference in area between the top surfaces of the two cakes? Use 3. 14 for π
The difference in area between the top surfaces of the two cakes is 28.26 inches²
Area of a circlearea = πr²
where
r = radius
Therefore,
area of top layer = πr²
d = 2r
r = d / 2
r = 8 / 2
r = 4 inches
area of top layer = 3.14 × 4²
area of top layer = 3.14 × 16
area of top layer = 50.24 inches²
area of the bottom layer = πr²
r = 10 / 2 = 5 inches
area of the bottom layer = 3.14 × 5²
area of the bottom layer = 3.14 ×25
area of the bottom layer = 78.5 inches²
Difference in area between the top surfaces of the two cakes can be found as follows:
78.5 - 50.24 = 28.26 inches²learn more on circle here: https://brainly.com/question/10264279
Which section of the function is constant?
A graph is shown. Segment A begins at the origin and continues upward. Segment B continues upward at a faster rate. Segment C is a horizontal line. Segment D continues upward
Group of answer choices
C
B
A
D
Answer:
Segment C
Step-by-step explanation:
constants have no slopes and are therefore straight, horizontal lines
Joel has a vintage comic book worth $360, According to a dealer, the value of this particular
comic book will increase by 5% each year, How much will the comic book be worth in 15
years?
If necessary, round your answer to the nearest cent,
Submit
Answer:
748.41
i just did this and i am right
How to solve (4x^2 + 20x + 6)/ (2x+8)
Answer:
2x2+10x+3/x+4
Step-by-step explanation:
4x2+20x+6 / 2x+8 = 4x2+20x+6/2x+8
Dan selected a random sample of 100 students from the 1,200 at his school to investigate preferences for making up school days lost due to emergency closings. The results are shown in the table.
Preference Number of Students
Extend the school year into the summer 58
Go to school on Saturdays in the spring 42
Dan incorrectly performed a large sample test of the difference in two proportions using 58/100 and 42/100 and calculated a p-value of 0.02. Consequently, he concluded that there was a significant difference in preference for the two options. Which of the following best describes his error in the analysis of these data?
A. No statistical test was necessary because 0.58 is clearly larger than 0.42.
B. The results of the test were invalid because less than 10% of the population was sampled.
C. Dan performed a two-tailed test and should have performed a one-tailed test.
D. A one-sample test for a proportion should have been performed because only one sample was used.
E. More options should have been included, and a chi-square test should have been performed.
A one-sample test for a proportion should have been performed because only one sample was used.
=========================================================
Explanation:
As the problem states at the very top, "Dan selected a random sample" which is paraphrased to "Dan selected ONE random sample". That keyword "one" means Dan should have used a one-sample test for a proportion. Not a difference in proportions test. This may seem like a trick question, but it's not.
If Dan had 2 samples, then he would go for the difference in proportions of course.
two number are in the ratio 5:8 if if there sum is 130 find the numbers
Answer:
50 and 80
Step-by-step explanation:
two numbers are in ratio 5;8 which is 5x + 8x
sum = 130
5x + 8x = 130
13x = 130 ( divide both sides by 13)
x = 10
to find the two numbers we multiply by x
5x = 5 x 10 = 50
8x = 8 x 10 = 80
An SRS of ten brands of breakfast cereals is tested for the number of calories per serving. The following data result: 185, 190, 195, 200, 205, 205, 210, 210, 225, 230. Find a 95% confidence interval estimate for the mean number of calories for servings of breakfast cereals.
Using the t-distribution, as we have the standard deviation for the sample, it is found that the 95% confidence interval estimate for the mean number of calories for servings of breakfast cereals is (195.3, 215.7).
What is a t-distribution confidence interval?The confidence interval is:
[tex]\overline{x} \pm t\frac{s}{\sqrt{n}}[/tex]
In which:
[tex]\overline{x}[/tex] is the sample mean.t is the critical value.n is the sample size.s is the standard deviation for the sample.From the sample and the significance level of 0.05, we have that the parameters are given by:
[tex]\overline{x} = 205.5, s = 14.2, n = 10, t = 2.2622[/tex]
Hence:
[tex]\overline{x} - t\frac{s}{\sqrt{n}} = 205.5 - 2.2622\frac{14.2}{\sqrt{10}} = 195.3[/tex]
[tex]\overline{x} + t\frac{s}{\sqrt{n}} = 205.5 + 2.2622\frac{14.2}{\sqrt{10}} = 215.7[/tex]
The 95% confidence interval estimate for the mean number of calories for servings of breakfast cereals is (195.3, 215.7).
More can be learned about the t-distribution at https://brainly.com/question/16162795
PLS HURRY!
What is the lowest value of the range of the function
shown on the graph?
5
4
- od
3
0-2
2-
Ο Ο
1
O 3
-5 -4 -3 -2 -11
1 2 3 4
5
х
-2
-3
-4
+ >
Answer:
-2Step-by-step explanation:
The range is calculated using value of 'y'.
Here, the range is...
[tex]( - 2 ,\infty )[/tex]
Therefore, the lowest value is -2.
help..................
Answer:
B
Step-by-step explanation:
Electrons are outstide the shell and hence the nucleas have a charge of protons and neutrons. That's why they say the nucleas of an atom is positive.
Answer:
B
Step-by-step explanation:
The population of bats in a large cave is 4800 and is growing exponentially at 16%
per year. Write a function to represent the population of bats after t years, where the
quarterly rate of change can be found from a constant in the function. Round all
coefficients in the function to four decimal places. Also, determine the percentage
rate of change per quarter, to the nearest hundredth of a percent.
Answer:
f(t)=4800(1.0378)^4t
3.78%
Step-by-step explanation:
f(t)=
f(t)=a(1+r)^t
f(t)=4800(1+0.16)^t
f(t)=4800(1.16)^t
The table shows some of Mr. Puhas's household expenses for the month of February. Mr. Puhas has 500 set aside for utilities. Use an equation to determine how much money he will have left after he pays for February's utilities
Money left = money saved - cost of utilities.
Money left = 500 - 319.45
Money left = 180.55
Find and fix the incorrect statement
The probability that a student guesses the correct answer to a four-choice multiple choice question is P(correct) = 0.25 How many correct answers should a student expect to guess on a test with 58 four choice multiple choice questions?
Answer:
14.5
Step-by-step explanation:
pls brainliest
Lena starts a spelling test at 12:15 P.M. The test is 35 minutes long. After the spelling test, Lena has art class for 1 hour. What time does Lena's art class end?
Answer:
1:50 P.M
Step-by-step explanation:
12:15+35 = 12:50
1 hour = 60 minutes
60 + 12:50 = 1:50
You can help me with any one of these equations I would really appreciate it but also please provide step-by-step explanation thank you I will choose Brainly
[tex][Hello,BrainlyUser][/tex]
Answer:
[5] [tex]2x^2+xy+-3y^2[/tex]
[6] [tex]2x^3+-7x^2+-3x[/tex]
[7] [tex]4a+2b[/tex]
[8] [tex]6x+2y-5[/tex]
[9] [tex]x^2-3xy-10y+75[/tex]
Step-by-step explanation:
Let's start with [5]
[tex]3x^2-2xy-2x^2-(x^2-3xy+y^2)[/tex]
Distribute the Negative Sign:
[tex]=3x^2-2xy-2y^2-1(x^2-3xy+y^2)[/tex]
[tex]=3x^2+-2xy+-2y^2+-1x^2+-1(-3xy)+-1y^2[/tex]
[tex]=3x^2+-2xy+-2y^2+-x^2+3xy+-y^2[/tex]
Combine like term
[tex]=3x^2+-2xy+-2y^2+-x^2+3xy+-y^2[/tex]
[tex]=(3x^2+-1x^2)+(-2xy+3xy)+(-2y^2+-y^2)[/tex]
[tex]=2x^2+xy+-3y^2[/tex]
Answer = [tex]2x^2+xy+-3y^2[/tex]
-------------------------------------------------------------------------------------------------------------
[6] [tex]\left(2x^3-5x^2-3x\right)-2x^2[/tex]
Combine like terms
[tex]\left(2x^3-5x^2-3x\right)-2x^2[/tex]
[tex]=(2x^2)+(-5x^2+-2x^2)+(-3x)[/tex]
[tex]=2x^3+-7x^2+-3x[/tex]
Answer = [tex]2x^3+-7x^2+-3x[/tex]
------------------------------------------------------------------------------------------------------------- [7] [tex]4a-(3a-2b)+3a[/tex]
[tex]=4a+-3a+2b+3a[/tex]
Combine like terms:
[tex]=(4a+-3a+3a)+(2b)[/tex]
[tex]=4a+2b[/tex]
Answer = [tex]4a+2b[/tex]
-------------------------------------------------------------------------------------------------------------
[8] [tex]\left[3x-\left[x-4x+2y\right)+4y\right]-5[/tex]
[tex]3x-(-3x-2y+4y)-5[/tex]
[tex]=3x-(-3x+2y)-5[/tex]
[tex]=3x+3x-2y-5[/tex]
[tex]=6x-2y-5[/tex]
Answer = [tex]6x-2y-5[/tex]
-------------------------------------------------------------------------------------------------------------
[9] [tex]x^2-3xy+5\left\{2+\left[y-3\left(y-6\right)-5\right]\right\}[/tex]
Combine likes terms
[tex]x^2-3xy-10y+75[/tex]
Answer = [tex]x^2-3xy-10y+75[/tex]
[CloudBreeze]
First try was incorrect Convert the following number to a percent. 9/ 7 If needed, round to the nearest tenth.
Answer:
128.6
Step-by-step explanation:
9/7 = 1.28571428571
1.28571428571 x 100 = 128.571428571
rounded = 128.6
look on digit to the right of tenths place (5). Its 5 or higher, its 7, so round the 5 to 6
write a pythogorean triplet whose smallest number is 20?
Answer:
20,21,29 or 20, 99 and 101.
Step-by-step explanation:
[tex]a^{2} +b^{2} =c^{2}[/tex]
[tex]20^{2} +21^{2} =29^{2}[/tex]
[tex]400+441=841[/tex]
OR:
[tex]a^{2} +b^{2} =c^{2}[/tex]
[tex]20^{2} + 99^{2} = 101^{2}[/tex]
[tex]400+9801=10201[/tex]
what precent is 50% of 150% of x?
Answer:
75% of x
Step-by-step explanation:
Answer:
75%x (or 0.75x)
Step-by-step explanation:
We can convert the percentages to decimal format and then multiply.
50% = 0.50
150% = 1.50
"50% of 150% of x" can be written as:
(0.50)(1.50)x
= 0.75x
50% of 150% of x is 75%x
Which equation represents the function on the graph?
f(x)=cos12x
f(x)=sin12x
f(x)=cos2x
f(x)=sin2x
Answer:
f(x)=cos12x
Step-by-step explanation:
took the test
Help please the topic is about infinitely, no solution and one solution please help
Answer:
3(x + 1) - 2x - 7 = x - 4Step-by-step explanation:
The equation has infinitely many solutions if LHS and RHS are same regardless the value of the variable.
Let's simplify the LHS and make sure it is same as RHS.
Let the missing numbers are a and b.
a(x + 1) - 2x - b = x - 4ax - 2x + a - b = x - 4(a - 2)x + (a - b) = x - 4Find a and b:
a - 2 = 1 ⇒ a = 3a - b = - 4 ⇒ 3 - b = - 4 ⇒ b = 7Write an equation to represent the total number of legs on h horses and c chickens if a farmer counts 186 legs between two types of animals.
Answer:
4h + 2c = 186 legs
Step-by-step explanation:
h is the number horses and c is the number of chickens.
We know that 1 horse = 4 legs.
And 1 chicjen = 2 legs
We can write these as:
1H = 4 legs
1C = 2 legs
We are told that a farmer counts 186 legs. That must be represented by the equations:
4h + 2c = 186 legs
2. Evaluate the given function by using synthetic division:
f(x)= 24 + 3x3 + x2 + 2x – 3 at x = -2.
Answer:
53
Step-by-step explanation:
f(x)= 3x^3+x^2+2x-21
X=-2
2 3 1 2. 21
bring the 3 down
2x3=6
6+1=7
7x2=14
14+2=16
16x2=32
32+21=53
Therefore, you have a remainder of 53
Angle a and b are supplementary angles. If m a = (x – 40)0 and m b = (x + 20)0, find the value of x, m a and m b
Answer:
∠ a = 60° , ∠ b = 120°
Step-by-step explanation:
Supplementary angles sum to 180° then
x - 40 + x + 20 = 180 , that is
2x - 20 = 180 ( add 20 to both sides )
2x = 200 ( divide both sides by 2 )
x = 100
Then
∠ a = x - 40 = 100 - 40 = 60°
∠ b = x + 20 = 100 + 20 = 120°
Answer:
x=100 a=60 b=120
Step-by-step explanation:
Supplementary angles add 180 degrees
(x-40) + (x+20) = 180
2x-20 =180
2x =100
x = 100
100-40 = 60
100+20 = 120
60+120 +180
The quotient of a number and -8 is -16 equation and solution
Answer:
x = 128
Step-by-step explanation:
x*(-8) = -16. multiply both sides by -8 to get x by itself
x = 128
Work out m and c for the line: 2 x + 3 y + 1 = 0
Answer:
Step-by-step explanation:
Write in y = mx +c form
2x + 3y + 1 = 0
3y = -2x - 1
Divide the entire equation by 3
[tex]y =\dfrac{-2}{3}x-\dfrac{1}{3}[/tex]
[tex]m = \dfrac{-2}{3}\\\\\\c=\dfrac{-1}{3}[/tex]
A tourist exchanges US$1500 in St Lucia for Eastern Caribbean currency. Given that US$1.00 = EC$2.7169 and that the total bank charges amounted to EC$10.80, calculate the amount in EC currency that the tourist received from the transaction.
what is photo tha photo aunties
If the volume of a cube is 1331cm3 what is the lengh of it's side?
Pls help! I'm Stuck.
Answer:
11 cm
formulae:
volume of cube: a³ [ where a is side length ]
solve:
side³ = volume
a³ = 1331
a = ³√1331
a = 11
Answer:
11 cm
Step-by-step explanation:
the volume (V) of a cube is calculated as
V = s³ ( s is the side length )
given V = 1331 cm³ , then
s³ = 1331 ( take cube root of both sides )
s = [tex]\sqrt[3]{1331}[/tex] = 11
Please help! 20 points thanks :)
Answer:
[tex]\frac{3}{2}[/tex]
*View attached graph*
Step-by-step explanation:
Slope (m) formula: [tex]\frac{y_2-y_1}{x_2-x_1} =\frac{7-(-5)}{6-(-2)} =\frac{12}{8}=\frac{3}{2}[/tex]
y[tex]y=\frac{3}{2}x-2[/tex]
Hope this helps!
