If x = 2 and y=5, what is the value of the expression below?
7x + y2
a. 24
b. 39
c. 82
d. 97
Answers
Answer:25
Related Questions
Suppose that 60\%60%60, percent of adults in district A support a new ballot measure, while 45\%45%45, percent of adults in district B support the same measure. Pollsters take an SRS of 200200200 adults from district A and a separate SRS of 100100100 adults from district B to see the difference between the sample proportions (\hat{p}_\text{A}-\hat{p}_\text{B})( p ^ A − p ^ B )left parenthesis, p, with, hat, on top, start subscript, start text, A, end text, end subscript, minus, p, with, hat, on top, start subscript, start text, B, end text, end subscript, right parenthesis. What will be the shape of the sampling distribution of \hat{p}_\text{A}-\hat{p}_\text{B} p ^ A − p ^ B p, with, hat, on top, start subscript, start text, A, end text, end subscript, minus, p, with, hat, on top, start subscript, start text, B, end text, end subscript, and why?
Answers
Answer:it’s B (120 succes and 80 failures for khan academy)
Step-by-step explanation: trust me
The shape of the sampling distribution of [tex]\hat{p}_\text{A}-\hat{p}_\text{B}[/tex] is approximately normal because the number of success in district A is 120
How to determine the shape of the distribution?The given parameters are:
Proportion of adults in district A = 60%Proportion of adults in district B = 45%Sample size of A, n = 200Sample size of B, n = 100In the sample size of 200, the number of adults that support a new ballot measure is:
Success = 60% * 200
Success = 120
Those that oppose is
Failure = 200 - 120
Failure = 80
If 45% supports a new ballot measure in district B, then 55% do not support
The difference between those that support and do not support is:
(55% - 45%) * 100 = 10
Hence, the sampling distribution of [tex]\hat{p}_\text{A}-\hat{p}_\text{B}[/tex] is approximately normal
Read more about normal distribution at:
https://brainly.com/question/4079902
If h(x) = 2x² - 5 find h(4x²)
Answers
Answer:
8x^4-5
Step-by-step explanation:
8x^4-5
Just substitute 4x^2 into x
Answer:
= 32x^4-5
Step-by-step explanation:
write these numbers in order of size starting with the smallest number. 5 to the power of -1, 0.5, -5, 5 to the power of 0
Answers
Answer:
5^-1, 0.5, 5^0
Step-by-step explanation:
Convert all numbers so that they have the same format.
5^-1 = 0.2
5^0 = 1
Compare:
0.2 < 0.5 < 1
This would be the order of size starting with the smallest.
Make sure you use the numbers in the problem and not the ones that were simplified.
A cell triples in weight every hour. The cell initially weighs 0.02 grams.
Answers
Answer:
In 1 hour the cell will become 0.06 grams.
If you want more hours, keep on doing that.
What is the 15th term in the sequence with the given formula?
An = 7n – 10
Answers
7.15-10 = 105-10 = 95 good luck
Tell whether the side lengths 18, 24, and 30 would form a right triangle?*
O Yes
O No
O Not enough information
Answers
Answer:
yes 18 24 and 30 does form a right triangle
In the cafeteria, a principal asked students what fraction of their plates contained vegetables. The line plot displays the students' responses. How many more plates of vegetables did the students who responded of a plate have than the students who responded of a plate? (look at picture)
Answers
Answer:
It should be A 3 1/4
Step-by-step explanation:
What is the center and radius of the circle?
(x-1)^2 + y^2= 36
Answers
Answer:
Center = ( 1, 0)
Radius = 6 units
Step-by-step explanation:
[tex] {(x - 1)}^{2} + {y}^{2} = 36 \\ \\ {(x - 1)}^{2} + {(y - 0)}^{2} = {6}^{2} \\ \\ equating \: it \: with \\ \\ {(x - h)}^{2} + {(y - k)}^{2} = {r}^{2} \\ \\ h = 1 \\ k = 0 \\ r = 6 \\ \\ Center = (h, \: k) = (1, \: 0) \\ Radius \: = 6 \: units[/tex]
Seth wants to cover the top of a small table with glass parallelogram tiles. The top of the table measures 18 inches by 14 inches. If each tile has four sides of length 3 inches with a height of 2 inches, about how many tiles will he need?
A. 26
B. 42
C. 63
D. 84
Guys please help i must Pass!!
Answers
Answer:
b. 42
Step-by-step explanation:
Answer:
A is correct
Step-by-step explanation:
✔
10 points
15. What is the rule for an arithmetic sequence whose first term is 12 and the common
difference is 9?
Answers
Answer:
T1=12 a=12 a=T1
d=9
your Arithmetic equation is Tn=a+(n-1)d
Tn=a+(n-1)d
SUBSTITUTE a and d in your equation
Tn=12+(n-1)(9)
Tn=12+9n-9
Tn=3+9n or Tn=9n+3
Write an expression that matches; “8 less than z”
Answers
Answer:
ᗴ᙭ᑭᖇᗴՏՏIOᑎ:[tex]z - 8[/tex]
6
Select all the expressions that equal 4×10
Answers
Answer:
40
Step-by-step explanation:
5 × 8 = 40
1 × 40 = 40
2 × 20 = 40
Pls helps I need help
Answers
Compare
1.41___1.397
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Answers
>
hi whats th median price of the items for 9.00 8.00 8.00 7.00 6.00
Answers
Answer:
8.00
Step-by-step explanation:
to find the median, you have to order all your numbers from least to greatest (6.00, 7.00, 8.00, 8.00, 9.00) then find the number in the MIDDLE. that number would be 8.00 so therefore the median is 8.00.
Andre earns 5200 a month at his new job. In order to track his spending and saving, he created a monthly
budget Andre divided his income into five categories and created the following círcle graph to represent the
budget he created for himself. Use this circle graph to answer the following questions.
Monthly Budget
Other
28%
Rent
30%
Savings
189
Groceries
15%
Utilities
9%
How much more money does Andre budget for Groceries and Utilities than he does for Savings?? Show
your work. Write your answer as a dollar amount.
Answers
Answer:
answer is 312.00
Step-by-step explanation:
Trust me I just took the test
Solve cos(theta)>sqrt3/2 for 0
Answers
Step-by-step explanation:
If you put some quantities for theta, you reach to B option
how to make percent to decimal?
ex. 76% = #/#
Answers
Answer:
divied by 100 and remove the "%" sign.
Step-by-step explanation:
1.)example 10% becomes 10/100=0.10
2.) example 67.5% becomes 67.5/100=0.675
Suppose we want to choose 3 objects, without replacement, from the 4 objects pencil, eraser, desk, and chair.
(a) How many ways can this be done, if the order of the choices is relevant?
?
(b) How many ways can this be done, if the order of the choices is not relevant?
Answers
Answer:24 , 4
Step-by-step explanation:
Given
There are 4 objects
(a)When the order is relevant
We use permutation to get the no of ways, that is
Choosing 3 objects out of 4
[tex]^4P_3=\dfrac{4!}{(4-3)!}=\dfrac{4!}{1!}\\^4P_3=24[/tex]
(b) When the order is not important, the same thing can be done in
[tex]^4C_3\ \text{ways}\\\\\Rightarrow \dfrac{4!}{1!3!}=4\ \text{ways}[/tex]
a.( 18:32)
b.(6:36)
c.(9:21)
convert the following ratio to fraction in it's lowest from
Answers
Answer:
Step-by-step explanation:
18 in every 32 (people or whatever it is) 18/32 then simplify i believe
could someone help me please? 13 points!!
Answers
Answer:
0.13
Step-by-step explanation:
it's not that hard all you have to do is add the shaded blocks, then make it a decimal
Answer:
Your answer would be 13%.
Step-by-step explanation:
Their is 100 squares and 13 squares are
shaded therefore it would be 13%.
Hope this helps!
What is the volume of a square pyramid with a base length of 4 cm and a heighi of 9 cm?
Answers
Answer:
V = 48 cm³
Step-by-step explanation:
base = 4 x 4 = 16
V = 1/3(16)(9) = 48 cm³
What is 602.88 rounded to the nearest hundredth?
Answers
Answer:
600
Step-by-step explanation:
If x = 2, y = 3 and z = 5, calculate the following: 2yz ÷ 3
Answers
Step-by-step explanation:
2x 3x5 = 30 ÷ 3 = 10
hope this helps
5 points
If f(x) = 3 sin 2x + c, what is the maximum value
of f(x)?
A) c+5
B) c+2
C) c
D) c +3
A
B
Answers
Answer:
D
Step-by-step explanation:
The maximum value of sin is 1. The Ampltiude is 3 so the maximum value of sin is 3 now.
The vertical shift is c so whatever value of c would be add to the maximum value z 3
D is the answer.
easy algebra question below first correct answer gets brainliest, if you put a link i will report and block
Answers
Answer:
6x²
Step-by-step explanation:
3x×2x=6...... then an x²
Therefore answer is 6x²
The price of an item has been reduced by 60%. The original price was $45. What is the price of the item now?
Answers
Answer:
$27
Step-by-step explanation:
An expression is shown -5.75 + 6.5, what is the value of the expression
Answers
Answer:
0.75
Step-by-step explanation:
You are just combining like terms since there are no variables:
-5.75 + 6.5 is the same as,
6.5 - 5.75
= 0.75
help need help with this
Answers
What is the result of subtracting a number greater than -3 but less than -2 from a number greater than 1 and less than 6
Answers
Answer:
2/2 - 4 = -3
Step-by-step explanation:
I don't know really but, hopefully this helps. Are there any answer choices?