Answer:
The expression that belongs in the box is 8 x 4
Option C is correct answer.
Step-by-step explanation:
We need to find Which expression belongs in the box?
[tex](3 \times 8) \times 4= 3 \times (------)[/tex]
The property applied here is associative property of multiplication.
Associative property of multiplication states that:
[tex](a \times b)\times c = a \times (b \times c)[/tex]
So, if we apply the property to our question we have:
a = 3
b = 8
c = 4
So, the expression will become: [tex](3 \times 8) \times 4= 3 \times (8 \times 4)[/tex]
So, the expression that belongs in the box is 8 x 4
Option C is correct answer.
Janelle weighs 75 kilograms. About how many pounds does Janelle weigh
1 kilogram =2.2 pounds
A. 185 pounds
B. 165 pounds
C.38.1 pounds
D. 34.1 pounds
Answer:
C. 165
Step-by-step explanation:
75 x 2.2 = 165
Please help I’m doing super bad in math
Answer:
it is the second answer (adjacent angles) :)
Step-by-step explanation:
Answer:
vertically angles
Step-by-step explanation:
rjrktkto0igrgu
Enter the following phrase as an algebraic expression. Let x represent the unknown number.
Three times a number, increased by 6
3x(6)
If you want me to solve it reply
Please any help with steps
Answer:
C
Step-by-step explanation:
1 inch=400 miles
x =200 miles
200 is half of 400, so the measurement should be halved as well.
A scientist recorded the growth of a plant over time. He found the average growth rate was 10 cm per
week.
What term best describes the analysis conducted by the scientist?
Answer:
growth
Step-by-step explanation:
he meassured the length to know how much the plant had grown
FREE BRAINLIEST PLS HELP You need 1 1/3 cups of white chocolate chips for your recipe. You find 4 1/4 cups in a small dish on the counter, but you spill 3 1/6 on the floor. How many cups of white chocolate chips are left in the container? Do you need to buy more at the store? If so, how much more do you need to buy?
Answer:
You don't need to buy more chocolate chips at store
Step-by-step explanation:
you need: 1 1/3 cup
you find: 4 1/4 cups = 1 full cup (4/4)
you spill: 3 1/6 = 3/6 (1/2)
you have: 1/2
you need: 1/3
The table shows the results of the survey of students.The survey asked the students whether they have a job and whether they have a car. What percentage of the students in the survey have a car.
Answer:where is the table
Step-by-step explanation:
Answer: c 40%
Step-by-step explanation:
I got it right so yeah
y is inversely proportional to x. What are the values of a and b?
Answer:
HEY CAN YOU HELP ME PLEASE WITH MY MATH YOU just did iv got a couple more please
Step-by-step explanation:HEY CAN YOU HELP ME PLEASE WITH MY MATH YOU just did iv got a couple more please
Evaluate the difference quotient for the given function. Simplify your answer. f(x) = 1 x , f(x) − f(a) x − a
Answer:
[tex]\frac{f(x) - f(a)}{x - a}=\frac{-1}{xa}[/tex]
Step-by-step explanation:
Given
[tex]f(x) = \frac{1}{x}[/tex]
Required
Evaluate [tex]\frac{f(x) - f(a)}{x - a}[/tex]
We have:
[tex]f(x) = \frac{1}{x}[/tex]
Next, we calculate f(a)
Substitute a for x in [tex]f(x) = \frac{1}{x}[/tex]
[tex]f(a) = \frac{1}{a}[/tex]
Substitute values for f(x) and f(a) in [tex]\frac{f(x) - f(a)}{x - a}[/tex]
[tex]\frac{\frac{1}{x} - \frac{1}{a}}{x - a}[/tex]
Take LCM of the numerator
[tex]\frac{\frac{a - x}{xa} }{x - a}[/tex]
Split:
[tex]\frac{a - x}{xa} /{x - a}[/tex]
Convert / to *
[tex]\frac{a - x}{xa} *\frac{1}{x - a}[/tex]
Express a - x as -(x-a)
[tex]\frac{-(x - a)}{xa} *\frac{1}{x - a}[/tex]
Divide numerator and denominator by x - a
[tex]\frac{-1}{xa} *\frac{1}{1}[/tex]
[tex]\frac{-1}{xa}[/tex]
Hence:
[tex]\frac{f(x) - f(a)}{x - a}=\frac{-1}{xa}[/tex]
The measure of angle 1 is 144° The measure of angle 3 is (6x)° What is the value of x
Answer:Choices A, B, and C are incorrect because substituting those values into the equation. 3 x plus x, ... For example, in choice B, substituting 1 for x in the equation would give. 3 times 1 ... t degrees. According to the triangle sum theorem, the sum of the measures of the three angles of a triangle is ... The correct answer is 144.
Step-by-step explanation:
What is the volume of this rectangular prism?
Answer:
[tex]V =\frac{12}{5}\ cm^3[/tex]
Step-by-step explanation:
The Volume of Rectangular Prism
Given a rectangular prism of dimensions W, L, and H, its volume is the product of the three dimensions:
V = WLH
The figure shows the dimensions:
L=3 cm
[tex]W=\frac{4}{3}\ cm[/tex]
[tex]H=\frac{3}{5}\ cm[/tex]
Thus, the volume is:
[tex]V =3*\frac{4}{3}*\frac{3}{5}\ cm^3[/tex]
[tex]V =\frac{36}{15}\ cm^3[/tex]
Simplifying:
[tex]\boxed{V =\frac{12}{5}\ cm^3}[/tex]
If the triangles are similar, which must be true?
Answer: Two triangles are similar if they have: all their angles equal. corresponding sides are in the same ratio.
HOPE THIS HELPS
PLEASE ANSWER ASAP WITH WORK FOR BRAINLEST!!!!!!!!!!!!!!!!
Use the properties of equality to find the value of x in equation 12(5x - 4.5) = 36.
a. x = -0.3
b. x = 0.675
c. x = 1.5
d. x = 10.5
Please help I’m doing super bad
Answer:
Vertical angle is answer for this question.
. For a normal distribution, find the percentage of data that are a. Within 1 standard deviation of the mean.________ b. To the right of 1.5 standard deviations below the mean________ c. More than 0.5 standard deviations away from the mean
Answer:
a. The percentage of data within 1 standard deviation of the mean is 68.26%.
b. The percentage of data to the right of 1.5 standard deviations below the mean is of 93.32%.
c. The percentage of data more than 0.5 standard deviations away from the mean is of 61.7%.
Step-by-step explanation:
When the distribution is normal, we use the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
a. Within 1 standard deviation of the mean
Between [tex]Z = -1[/tex] and [tex]Z = 1[/tex]
This is the pvalue of Z = 1 subtracted by the pvalue of Z = -1.
Z = 1 has a pvalue of 0.8413
Z = -1 has a pvalue of 0.1587
0.8413 - 0.1587 = 0.6826
The percentage of data within 1 standard deviation of the mean is 68.26%.
b. To the right of 1.5 standard deviations below the mean
Greater than [tex]Z = -1.5[/tex], that is, 1 subtracted by the pvalue of Z = -1.5.
Z = -1.5 has a pvalue of 0.0668
1 - 0.0668 = 0.9332
The percentage of data to the right of 1.5 standard deviations below the mean is of 93.32%.
c. More than 0.5 standard deviations away from the mean
Below [tex]Z = -0.5[/tex] or above [tex]Z = 0.5[/tex]. These percentages are the same, so we find one and multiply by 1.
Below Z = -0.5
This is the pvalue of Z = -0.5, which is 0.3085
0.3085*2 = 0.617
The percentage of data more than 0.5 standard deviations away from the mean is of 61.7%.
A 2003 New York Times CBS news poll sampled 523 adults who were planning a vacation during the next 6 months and found that 141 were expecting to travel by airplane. A similar survey question in May 1993 New York Times CBS news poll found that of 477 adults who were planning to take a vacation in the next 6 months, 81 were planning to travel by airplane. State the hypotheses that can be used to determine whether a significant change occurred in the population proportion planning to travel by airplane over 10 years.
Answer:
The solution can be defined as follows:
Step-by-step explanation:
[tex]H_0 : p_1 = p_2\\\\H_a : p_1 \neq p_2\\[/tex]
Testing the statistics values:
[tex]p_1 = \frac{141}{523} = 0.2696 \\\\ n_1 = 523\\\\p_2 = \frac{81}{477} = 0.1698\\\\ n_2 = 477[/tex]
[tex]p = \frac{(p_1 \times n_1 + p_2 \times n_2)}{(n_1 + n_2)}[/tex]
[tex]= \frac{(0.2696 \times 523 + 0.1698 \times 477)}{( 523 + 477)}\\\\= \frac{(141.0008 + 80.9946)}{(1000)}\\\\= \frac{(221.99)}{(1000)}\\\\= \frac{(222.0)}{(1000)}\\\\= 0.2220[/tex]
[tex]SE = \sqrt{ p \times ( 1 - p ) \times [ (\frac{1}{n_1}) + (\frac{1}{n_2}) ] }[/tex]
[tex]= \sqrt{( 0.222 \times (1-0.222) \times((\frac{1}{523}) + (\frac{1}{477})))}\\\\= 0.0263[/tex]
[tex]z = \frac{(p_1 - p_2)}{SE}[/tex]
[tex]= \frac{( 0.2696 - 0.1698)}{0.0263}\\\\= 3.7947[/tex]
p = 0.0001
It reject all the null hypothesis values
The stock market dropped 220 points on Monday. It lost another 48 points on Tuesday, and on Wednesday, it gained 96 points. What was the amount of change over those three days.
Answer: 48 points gained in those 3 days.
Subtract 220 with 48, then add 96. Last step would be subtracting 220 with the amount they have now in those 3 days to find how much points the stock market gained in those 3 days.
Subtract 220-48.It‘ll be 172.
Add 172 with 96. 172+96=268.
Subtract 268 with how much points the stock market had 3 days ago. 268-220. So it would be about 48 points gained.
Which type of interest is going to give you more money long term?
1. Compound Interest
2. Fixed Interest
3. Simple Interest
4. Real Interest
Which expression shows the area of the shaded part of the grid? A hundred grid model showing a 7 4 array shaded blue. A. 0.04 × 0.07 B. 0.5 × 0.7 C. 0.4 × 0.7 D. 0.3 × 0.6
Answer:
[tex]C.\ Area = 0.4 * 0.7[/tex]
Step-by-step explanation:
See attachment for grid
From the attachment:
There are 10 cells on the horizontal axis and there are also 10 cells on the vertical axis.
This implies that, the measurement of each cell is:
[tex]Each\ Cell = \frac{10}{10 * 10}[/tex]
[tex]Each\ Cell = \frac{1}{10}[/tex]
[tex]Each\ Cell = 0.10[/tex]
The horizontal axis has 7 selected cells.
This measures
[tex]Horizontal = 7 * 0.10 = 0.70[/tex]
The vertical axis has 4 selected cells.
This measures
[tex]Vertical = 4 * 0.10 = 0.40[/tex]
So, the selected area is:
[tex]Area = Vertical * Horizontal[/tex]
[tex]Area = 0.40 * 0.70[/tex]
or
[tex]Area = 0.4 * 0.7[/tex]
Kristi had $7.00 when she went to the store. When she got back, she had $2.36. How much did she spend?
Answer:
4.64
Step-by-step explana
Answer:
464+236 is 700 so if this is money then she spent 4.64
Step-by-step explanation:
Find the total cost for a $64 gift that has been marked up 30%. *
please help as soon as possible
Answer:
Its D
Step-by-step explanation:
Answer:
40 squarecm
Step-by-step explanation:
The weights of the fish in a certain lake are normally distributed with a mean of 19 lbs and a standard deviation of 6. If 25 fish are randomly selected, what is the probability that the mean weight will be greater than 17.2 lbs
Answer:
0.93319
Step-by-step explanation:
We solve the question using the z score formula
z = (x-μ)/σ/√n where
x is the raw score = 17.2 lbs
μ is the population mean = 19 lbs
σ is the population standard deviation = 6
n is the random number of samples = 25 fishes
Greater than sign = >
For x > 17.2 lbs
z = 17.2 - 19/6/√25
z = 17.2 - 19/ 6/5
z = 17.2 - 19/1.2
z = -1.5
Probability value from Z-Table:
P(x<17.2) = 0.066807
P(x>17.2) = 1 - P(x<17.2)
P(x>17.2) = 1 - 0.066807
P(x>17.2) = 0.93319
Therefore, that the probability that the mean weight will be greater than 17.2 lbs is 0.93319
Craig has £13.40
He sees this offer in a restaurant:
Main courses £8.90 each. Buy one main course and get the 2nd HALF PRICE!
Can he afford to buy two main courses? Show your working.
Answer:
yes
Step-by-step explanation:
1/2 of 8.90 = 4.45
8.90 + 4.45 = 13.35
he has enough
Factor the expression: 4d - 4
How do u do this plz help
Answer: 4(d - 1)
Step-by-step explanation:
both terms in 4d - 4 have a common factor: 4. pull this 4 out of both factors in order to get 4(d - 1)
Glover Inc. manufactures Product B, incurring variable costs of $15.00 per unit and fixed costs of $70,000. Glover desires a profit equal to a 12% rate of return on assets. Assets of $785,000 are devoted to producing Product B, and 100,000 units are expected to be produced and sold.
Answer:
Step-by-step explanation:
The questions are:
a. Compute the markup percentage using the total cost concept.
b. Compute the selling price of Product B.
a. The mark up percentage will be calculated as:
= Desired Profit / Total Cost
= ($785000 × 12%) / [($15 × 100,000) + $70,000]
= ($785,000 × 0.12) / [($15 × 100,000) + $70,000]
= $94,200 / $1,570,000
= 0.06
= 6%
b. Selling price of Product B will be calculated as:
= Cost amount per unit + Markup
= $15.70 + ($15.70 × 6%)
= $15.70 + $0.94
= $16.64
brian pays £275.23 a year on his car insurance
the insurance company increase the price by 2.6%
how much does the insurance cost now ?
give your answer rounded to 2DP
What's 3 1/2 divided by 1 3/4?
Answer:
2
Step-by-step explanation:
to improper fraction:
7/2 divided by 7/4
equals, 7/2 times 4/7
if f(x)=-3x-2 find f(3)
Answer:
-11
Step-by-step explanation:
Answer:
-11
Step-by-step explanation:
f(3) means that you plug in 3 for x in the entire equation of f(x)
This means when f(x) = -3x - 2
f(3) = -(3)(3) - 2
= -9 -2
= -11
VX=282, ZY = 34, WY = 38, and mZZXY = 34º.
W
X
WZ =
VY=
ZV =
ZX =
m2WXZ =
mZWVZ =
mZZYW =
mZXYW =
N
Answer:
Huh
Step-by-step explanation:
