The 20% tip on a $73 meal
2612 ÷13 = ? A. 202 r11 B. 200 r12 O O D. 199111 C. 200 r13
Answer two questions about Equations A and B:
A. 5x = 3x
B. 5 = 3
1) How can we get Equation B from Equation A?
A. Add/subtract the same quantity to/from both sides
B. Add/subtract a quantity to/from only one side
C. Multiply/divide both sides by the same non-zero constant
D. Multiply/divide both sides by the same variable expression
2( Based on the previous answer, are the equations equivalent? In other words, do they have the same solution?
A. Yes
B. No
X
If the edges of a rectangular prism are increased by a scale factor of 3, how will the volume change
O A. The new volume is 3 times the old volume,
B. The new volume is 9 more than the old volume.
O C. The new volume is 9 times the old volume,
D. The new volume is 27 more than the old volume,
O E. The new volume is 27 times the old volume,
Answer:
E. The new volume is 27 times the old volume.
Step-by-step explanation:
A rectangular prism has dimensions width w, height h and length l. It's volume is given by:
[tex]V = wdl[/tex]
Edges of a rectangular prism are increased by a scale factor of 3
Each dimensions is multiplied by 3, and the volume is:
[tex]V_m = 3w(3d)(3l) = 3*3*3wdl = 27wdl[/tex]
How will the volume change?
[tex]\frac{V_m}{V} = \frac{27wdl}{wdl} = 27[/tex]
Thus, the volume is multiplied by 27, that is, it is 27 times the old volume, and the correct answer is given by option E.
Evaluate sin^2 θ for θ = 45°
Answer:
[tex]\frac{1}{2}[/tex]
Step-by-step explanation:
sin45° = [tex]\frac{1}{\sqrt{2} }[/tex] ← exact value , then
sin²45° = [tex]\frac{1}{\sqrt{2} }[/tex] × [tex]\frac{1}{\sqrt{2} }[/tex] = [tex]\frac{1}{2}[/tex]
24/10 into hundredths
Answer:
240/100
Step-by-step explanation:
just multiply 24 by 10 to get hundredths
Help I need an explanation
Answer:
Step-by-step explanation:
X =75
Answer:
180° - 105 = 75°i.e angle EFB (sum of angle in st.line)
Step-by-step explanation:
X°= angle EFB ( being corresponding angle)
Hence the value of x is 75
Which expression does the number line represent?
O 3+ 3/4. O 3/4 + 9/4 O 3 + 9/4 O 9/4 + 3/4
Which numerical expression represents the following calculation?
Add the quotient of 35 and 5 to the product of 2 and 6.
Answer:
19
Step-by-step explanation:
Given the expression:
Add the quotient of 35 and 5 to the product of 2 and 6.
Quotient of 35 and 5 :
35 / 5 = 7
Product of 2 and 6 :
(2 * 6). = 12
Adding the result of the both calculations :
7 + 12 = 19
Writing the expression together :
35/5 + (2 * 6)
7 + 12
help me pls! PLS PLS PLS I NEED IT
20 points
options are x, x^9, x^4, and x^6
Answer:
x^4
Step-by-step explanation:
The expression can be simplified to (x^2)^2. Using an exponent rule, you multiply the two exponents together to get 4. The answer is x^4
A number added to five equal to negative eleven find the number
Answer:-16
Step-by-step explanation: -16 + 5 = -11
WILL GIVE BRAINLIEST!!!!!(NO LINKS)
Quadrilateral ABCD is translated 5 units right. What are the coordinates of
quadrilateral A'B'C'D?
y
A (5.5)
DA
D(15
C (21)
BX51
RUX
A. A'(10,5), B' (10,1), C'(7.1), D' (6,5)
O B. A' (10,10), B' (10,6), C'(7.6),
D'(6,10)
O C. A'(5,0), B'(5,-4), C' (2,-4), D' (1,0)
D. A' (0,5), B'(0,1), C'(-3,1), D'(-4,5)
Answer:
D (-5,10),(-1,10),(-1,7),(-5,6)
Step-by-step explanation:
I took the quiz and it was right hope this helps ❤️Can u mark brainlist PLZ
The price of Chumps sweat pants just went on sale for 20% off. If the regular price was $80, what is
the sale price?
Answer:
20/100 * 80=16
80_16=64$
Step-by-step explanation:
Graph x=2.5 will do anything
Okay, so you're going to go along the line that goes side to side, and then find positive 2. It'll be on the right side. From there, go half way in and insert a line going up and down.
Bam! You've got yourself x= 2.5 graphed!
Answer:
O ma god. dat many tabs open!!!! xD
Step-by-step explanation:
It's on da graph
Parker just started a running plan where he runs 7 miles the first week and then
increases the number of miles he runs by 10% each week. If he keeps up this plan for
15 weeks, how many total miles would Parker have run, to the nearest whole
number?
Answer:
Parker would have run 29 miles in the 15th week.
Step-by-step explanation:
Since Parker just started a running plan where he runs 7 miles the first week and then increases the number of miles he runs by 10% each week, to determine, if he keeps up this plan for 15 weeks, how many total miles would Parker have run, to the nearest whole number, the following calculation should be performed:
7 x 1.1 ^ 15 = X
7 x 4.1772 = X
29.24 = X
Therefore, Parker would have run 29 miles in the 15th week.
Write the equation of the line with the given slope and y-intercept.
slope - 5
y-intercept - 8
A)
y = 5x+8
B
x - 5y + 8
y- 8x-5
D
Xo Bys
Answer:
y = 5x+8
Step-by-step explanation:
The slope intercept form of a line is
y = mx+b where m is the slope and b is the y intercept
We know the slope is 5 and the y intercept is 8
y = 5x+8
A diver was 40 feet below the surface of the water. A fisherman was casting off a dock right above the diver that was 12 feet above the surface of the water. How far apart are the diver and the fisherman?
A.
28 feet
B.
-52 feet
C.
-28 feet
D.
52 feet
Answer:
The answer is D.
Step-by-step explanation:
It is D because they cannot be negative feet away and if the fisherman is 12ft above water and the diver is 40ft below than 40 + 12 = 52. Hope this helps.
Consider the following hypothesis test: H0: μ1 - μ2 = 0 Ha: μ1 - μ2 ≠ 0 There are two independent samples taken from the two populations: Sample 1 Sample 2 n1 = 81 n2 = 64 Sample average = 110 Sample average = 108 Population standard deviation = 7.2 Population standard deviation = 6.3 What is the value of the test statistic.
Answer:
The value of the test statistic is [tex]z = 1.78[/tex]
Step-by-step explanation:
Before finding the test statistic, we need to understand the central limit theorem and subtraction of normal variables.
Central Limit Theorem
The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Subtraction between normal variables:
When two normal variables are subtracted, the mean is the difference of the means, while the standard deviation is the square root of the sum of the variances.
Sample 1:
[tex]\mu_1 = 110, s_1 = \frac{7.2}{\sqrt{81}} = 0.8[/tex]
Sample 2:
[tex]\mu_2 = 108, s_2 = \frac{6.3}{\sqrt{64}} = 0.7875[/tex]
The test statistic is:
[tex]z = \frac{X - \mu}{s}[/tex]
In which X is the sample mean, [tex]\mu[/tex] is the value tested at the null hypothesis, and s is the standard error.
0 is tested at the null hypothesis:
This means that [tex]\mu = 0[/tex]
Distribution of the difference:
[tex]X = \mu_1 - \mu_2 = 110 - 108 = 2[/tex]
[tex]s = \sqrt{s_1^2+s_2^2} = \sqrt{0.8^2+0.7875^2} = 1.1226[/tex]
What is the value of the test statistic?
[tex]z = \frac{X - \mu}{s}[/tex]
[tex]z = \frac{2 - 0}{1.1226}[/tex]
[tex]z = 1.78[/tex]
The value of the test statistic is [tex]z = 1.78[/tex]
Help me pleaaaaaseeee
5. (08.02 MC) Which of the following graphs shows a pair of lines that represents the equations with the solution (3, -6)? (1 point)
Answer:
Hello, it appears you did not attach an image that would provide the necessary information for me to answer your question. I cannot see the graphs, so I'm afraid unless you present a photograph, I'm cannot help you. If you show me the graphs, I'd be more than happy to help you!
Step-by-step explanation:
A student performed the following steps to find the solution to the equation
x2 + 4x-12-0. Where did the student go wrong?
Answer:
Step 2
Step-by-step explanation:
Step 2 because in step 1, they correctly wrote the factors of the polynomial as (x+6) and (x-2). But then in step 2, (x+6) suddenly became (x-6) and (x-2) became (x+2), which is incorrect.
The answers in step 3 should have been -6 and 2.
Solve for the x variable
Answer:
5x-5.2=7.3
5x=7.3+5.2
5x=12.5
x=12.5÷5
x=2.5
Answer: x = 2.5
Step-by-step explanation:
Try to get x by itself
5x - 5.2 = 7.3
5x = 7.3 + 5.2
5x = 12.5
x = 12.5 / 5
x = 2.5
What is the ratio of 4 and 120
Answer:
1 : 30 or
[tex] \frac{1}{30} [/tex]
................................................
Answer:
1: 30
Step-by-step explanation:
The top three oil producers in the United States in a certain year were the Gulf of Mexico, Texas, and Alaska. The three regions were responsible for 64% of the United States oil production. The Gulf of Mexico and Texas combined for 47% of oil production. Texas produced 3% more than Alaska. What percent of United States oil production came from these regions?
Answer:
27% of United States oil production came from Gulf of Mexico.
20% of United States oil production came from Texas.
17% of United States oil production came from Alaska.
Step-by-step explanation:
This question is solved by a system of equations.
I am going to say that:
Gulf of Mexico produced x%.
Texas produced y%.
Alaska produced z%.
The three regions were responsible for 64% of the United States oil production.
This means that:
[tex]x + y + z = 64[/tex]
The Gulf of Mexico and Texas combined for 47% of oil production.
This means that [tex]x + y = 47[/tex].
We use this to find z.
[tex]47 + z = 64[/tex]
[tex]z = 64 - 47 = 17[/tex]
17% of United States oil production came from Alaska.
Texas produced 3% more than Alaska.
Then:
[tex]y = z + 3 = 17 + 3 = 20[/tex]
20% of United States oil production came from Texas.
Gulf of Mexico
[tex]x + y = 47[/tex]
[tex]x = 47 - y = 47 - 20 = 27[/tex]
27% of United States oil production came from Gulf of Mexico.
What is the degree?
6−n
2
+5n
3
Answer:
The degree is 3
Step-by-step explanation:
Given
[tex]6 - n^2 + 5n^3[/tex]
Required
The degree
The highest power of the variable is regarded as the degree of the polynomial
In the given polynomial, the variable is n.
And the powers of n are:
[tex]n = \{0,2,3\}[/tex]
The highest power is 3; Hence, the degree is 3
Find the volume of a rectangular prism
with a width of 9 cm, a length of 11 cm,
and a height of 8 cm.
Which equations can be used to determine the area of the irregular figure?
Answer:
the first option put I'm not 100% sure so if I get it wrong I apologize
1) Find the product: 6 x 1/3= * O 61/3 O 6/18 6/3 01/18
Answer:
2
Step-by-step explanation:
Answer:
I think its the second answer
An experiment to improve eyesight with a new drug involves 100 subjects. 50 subjects are randomly chosen to receive the treatment and the other 50 subjects receive a placebo. There was very little difference between the success rate of the treatment group and the placebo group. The success of the placebo group may be due to Group of answer choices
Answer: Hello your question lacks the required options but I will provide a more general answer
answer : Ineffectiveness/failure of the experimental Treatment given to the 50 subjects in the Treatment group
Step-by-step explanation:
The Placebo treatment is a treatment given for the purpose of psychological benefit. it does not have a therapeutic effect on the individual.
Given that there is very little difference between the success rate of the group whom actually receive the treatment ( for the purpose of therapeutic effect ) and the group that received placebo treatment we can conclude that the success of the Placebo group is due to the ineffectiveness of the Treatment given to the 50 subjects in the Treatment group
The sixth graders at Wood Creek Middle School are selling bags of popcorn and candy bars for a fundraiser. The ratio of the total amount of popcorn sold to the total amount of all snacks sold is 4:9.
Select the statement that is correct about snacks sold.
1.The ratio of popcorn sold to candy bars sold is 4:13.
2.The ratio of total snacks sold to popcorn sold is 9:4.
3.The ratio of candy bars sold to total snacks sold is 9:5.
4.There are 4 bags of popcorn sold for every 9 candy bars sold.
Answer:
the ratio of total snacks sold to popcorn is 9:4