Answer:
12, because both dogs and birds only have 12 heads
a coin collection consists of nickels, dimes, and quarters, and has a total value of $3.30. there are three times as many nickels as quarters. how many coins of each kind are there if the number of dimes is three less than the average of the number of quarters?
Answer:
18 nickels, 9 dimes, 6 quarters.
Step-by-step explanation:
Basically, I just made a money table and used it to get my equation, which is: 60x-30=330, to get how many quarters there are. Then, plug that in to the problem and you have your answer.
Find the 11th term of the geometric sequence of 6,-18,54...
In this sequence, our common ratio is -3 (each value is -3 times the previous value). The first (or 1th) term of the sequence is 6, so we can form our equation:
[tex]y=6(-3)^(^x^-^1^)[/tex]
Now we have to find the 11 term. To do so, we plug 11 into our equation where the x would be. Once that's done, we do the math as follows:
[tex]y=6(-3)^(^1^1^-^1^)[/tex] (plug in)
[tex]y=6(-3)^(^1^0^)[/tex] (simplify by subtracting 1 from 11 to get 10)
[tex]y=6(59049)[/tex] (simplify by calculating 3 to the power of 10 to get 59049)
[tex]y=354294[/tex] (solve by multiplying 6 by 59040 to get 354294
Therefore, our 11th term in the sequence is 354394.
Write 7 as a fraction with 3 in the denominator
Answer:
7/3
Step-by-step explanation:
7 is in numerator's and 3 is in denominator's position.
If A gallon of milk weighs 8 pounds, how many gallons of milk are in 1 ton
Answer: 250 gallons in a ton of milk.
Step-by-step explanation:
if a pint is a pound the world around 2 pints to a quart 4 quarts to a gallon makes a gallon 8 pounds so 250 gallons in a ton of milk.
Pls help I’m begging u pls help have a good day pls help I need this
Answer:
27.5
Step-by-step explanation:
We can split it into to 2 rectangles so it would be 2.5x7.5 for 1 rectangle. You have to subtract 2.5 from 6 which is 3.5 so the second rectangle is 3.5x2.5.
Rectangle 1= 18.75
Rectangle 2= 8.75
18.75+8.75= 27.5
A health magazine reported that 27% of adult males smoke cigarettes. A competing magazine thinks this claim is false. To test this claim, they select 40 adult males at random and record if they smoke cigarettes. They calculate a 95% confidence interval for the proportion of adult males who smoke and find it is 0.22 to 0.28.
(a) Interpret the confidence interval.
(b) Calculate the point estimate and margin of error used to create this confidence interval.
Point estimate:___________
Margin of error:___________
(c) Based on the confidence interval, is it plausible that the true proportion of adult males who smoke cigarettes is 27%? Explain.
Answer:
a) what is the point estimate used to create this confidence interval?
[a] 0.22
[b] 0.28
[c] 0.26
[d] 0.25 <-----------------------------
b) what is the margin of error used to create this confidence interval?
[a] .06
[b] .03 <-----------------------------
[c] .035
[d] .055
c) based on the confidence interval, it is plausible that the true proportion of adult males who smoke cigarettes is 27%?
[a] yes <-------------------------------
[b] no
Step-by-step explanation:
The Ballantyne area has 200 people over the age of eighty-five living in it of these people, 56 of them have a dog, 24 of them have a cat, and 16 of them have both of a person
is chosen at random, find the probability that they have a cat, if it is known they have a dog.
a. 1/2
b.3/7
c.2/7
d.2/25
The mean daily rainfall for a week was 5.5mm.for the first six days the mean rainfall was 1mm.How much rainfall on the seventh day
Answer:
There was 32.5mm of rainfall on the seventh day.
Step-by-step explanation:
Mean of a data-set:
The mean of a data-set is the sum of all values of a data-set divided by the number of values in the data-set.
The mean daily rainfall for a week was 5.5mm.for the first six days the mean rainfall was 1mm.
This means that during the week(7 days), the total amount of rain was of:
[tex]6*1 + x = 6 + x[/tex]
How much rainfall on the seventh day ?
This is x. We have that:
[tex]\frac{6 + x}{7} = 5.5[/tex]
[tex]6 + x = 7*5.5[/tex]
[tex]6 + x = 38.5[/tex]
[tex]x = 38.5 - 6 = 32.5[/tex]
There was 32.5mm of rainfall on the seventh day.
On a coordinate plane, a single transformation will be performed on square RSTU.
Select three transformations of square RSTU that would result in a congruent figure.
A a translation 3 units up and 8 units to the right
B a rotation of 270 counterclockwise about the origin
C a dilation by a scale factor of 1 with respect to the origin
a dilation by a scale factor of 1.5 with respect to the origin
E
a dilation by a scale factor of -2 with respect to the origin
Answer:the answer is ABC
Step-by-step explanation:
I had this on my exit ticket and my teacher reviewed the question and told me it was correct
Find the length for c.
c=_in
Answer:
side length c = 9.53409 inches (round that to whatever you need to round to)
Step-by-step explanation:
sin(39)=6/c
c*sin(39)=6
c=6/sin(39)
helppppppp meeeeeeeee fastttttttttttt plssssssssss
Hello! The Answer is A and B
Hope this helps, Have a wonderful day!
Tysm for brainly!
How do I answer this?
Answer:
volume = 153.45 ft³
Step-by-step explanation:
area of base = 1/2 x base x height = 1/2 x 9 x 3.1 = 13.95 ft²
volume = base area x height= (13.95)(11) = 153.45 ft³
Which of these is the smallest number?
Answer:
E. 1/2
Step-by-step explanation:
1/2 as a decimal is .5
The reason it is not B is because 1/3 as a decimal is a repeating decimal.
Which divisor of x3 + 3x2 - 16x - 48 has a remainder of zero?
A. X + 2
B. X-4
C. x-3
D. x + 8
I need this one ASAP
===========================================================
Explanation:
We'll use the remainder theorem.
This theorem says that if you divide p(x) over (x-k), then the remainder is p(k).
We have p(x) = x^3 + 3x^2 - 16x - 48 and the denominator is one of the four choices A through D.
Let's go through each of them until we find the answer.
-----------------
For choice A, we have x+2 which is the same as x-(-2). It matches with x-k to show that k = -2.
Plug k = -2 into p(x) to get
p(x) = x^3 + 3x^2 - 16x - 48
p(-2) = (-2)^3 + 3(-2)^2 - 16(-2) - 48
p(-2) = -12
The remainder is -12, which is not 0 like we're after. We can cross A off the list.
-----------------
We'll follow the same ideas for choices B through D
For choice B, we plug in k = 4 because x-4 matches with x-k to show that k = 4.
p(x) = x^3 + 3x^2 - 16x - 48
p(4) = (4)^3 + 3(4)^2 - 16(4) - 48
p(4) = 0
We end up with a remainder of 0, so we can stop here. Dividing (x^3+3x^2-16x-48) all over (x-4) leads to some quotient and a remainder of 0.
Put another way: (x-4) is a factor of x^3+3x^2-16x-48
-----------------
Side notes:
x^3+3x^2-16x-48 factors to (x-4)(x+4)(x+3)If you try out choice C, the remainder is -42The remainder for choice D is -240 (you'll use k = -8).The length of a vegetable garden is 5 times its width. If its width is 3/4 meter, what is the area?
A circle has a radius of 3. An arc in this circle has a central angle of 60°.
What is the length of the arc?
Either enter an exact answer in terms of 7 or use 3.14 for 7 and enter your answer as a decimal.
Answer:
π
Step-by-step explanation:
s = (∅/360) * (2πr)
s = (60/360) * (2π*3)
s = (1/6) * (6π)
s = π
PLS I NEED HELP FAST
Find the surface area of the cone.
Answer:
373.8
Step-by-step explanation:
Rewrite the function f(x)=-4(x-1)^2+3 in the form f(x)=ax^2+bx+c.
Answer:
-4x²+8x-1Step-by-step explanation:
Which one is it 2 or 4?
Answer:
option 2
Step-by-step explanation:
1: 2(4) = 8 not 6
2: 4 + 3 = 7
3: 9 - 4 = 5 not 13
4: 4/12 = 1/3 not 3
A local eat-in pizzeria wants to investigate the possibility of starting to deliver pizzas. The owner of the store has determined that home delivery will be successful only if the average time spent on a delivery does not exceed 37 minutes. The owner has randomly selected 15 customers and delivered pizzas to their homes. What hypotheses should the owner test to see whether that the pizza delivery will be successful
Answer:
Hypothesis Test is:
Null Hypothesis H₀ x = 37
Alternative Hypothesis Hₐ x > 37
With that test hypothesis if we accept H₀ the result indicates that we can support that the average delivery time is equal to 37 we can proceed with the project. If on the other hand, we need to reject H₀ that means that the average delivery time exceed 37
Step-by-step explanation:
The limit average time is 37 minutes. Therefore under that value, the owner is happy. From the sample we have:
Sample size n = 15
we have data from delivery times then we have the mean x of the sample and standard deviation of the sample s
We assume normal distribution and as n < 30 test should be developed with t - student distribution.
Hypothesis Test is:
Null Hypothesis H₀ x = 37
Alternative Hypothesis Hₐ x > 37
With that test hypothesis if we accept H₀ the result indicates that we can support that the average delivery time is equal to 37 we can proceed with the project. If on the other hand, we need to reject H₀ that means that the average delivery time exceed 37
What is Limit of StartFraction x cubed minus 1 Over x minus 1 EndFraction as x approaches 1?
0
1
3
DNE
Answer:
It's C, 3
Step-by-step explanation:
Just did the problem and got it right :]
The limit of the given function when x approaches to 1 will be DNE.
What is limit?
An output value that a function approaches for the specified input values is referred to as a limit.
What will be the limit of the given function when x approaches to 1?
When we substitute 1 into the function then the denomiantor will be 1-1 and its value will be 0 .
As the denominator is 0 after plugging the limit this result that the limit will not exist.
Therefore, the correct answer is limit does not exist (DNE).
Learn more:https://brainly.com/question/19575451
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Which expression is equivalent to 4 (3n - 5)?
On - 20
7-9
12n - 5
12n - 20
Done -
I need this please help me
Answer:
A. Right 6, Down 5
Step-by-step explanation:
I don't know how to explain this
elementary math! please help Mark brainlist
Answer: 1 minute and 43 seconds faster
Step-by-step explanation:
Answer:
1 minute and 43 seconds faster
Step-by-step explanation:
What goes where
+ - x and divide simble
4_(3_2)_6_1=14
Answer:
(left to right) multiply; add; subtract; divide
Step-by-step explanation:
4*(3+2)-6/1
4*(5)-6/1
20-6/1
20-6
14
Will likes two brands of healthy breakfast cereal. In Superfiber
fiber in one cup. In Fiber Oats cereal, there are 4 grams of fib
the number of cups of Superfiber Will ate this week and let yr
Fiber Oats he ate this week. Which inequality represents the s
this week contained at least 30 grams of fiber?
O 5x + 4y = 30
O 5x + 4y = 30
O 4x + 5y = 30
4x + 5y = 30
Answer:
The first one I Took the test.
Step-by-step explanation:
help please
what are the features of the function f(x) = -(1/3)^x +5 graphed below
(it's all in the picture)
Answer:
Exponential functions have a horizontal asymptote.
The equation of the :
Horizontal asymptote is y=5.
Horizontal Asymptote: y=5.
Step-by-step explanation:
What two numbers have a product of -36 and sum of -9
Answer:-12 and -25
Step-by-step explanation:
Answer: 3 and -12
Step-by-step explanation:
I used this
www.calculatorsoup.com/calculators/math/diamond-problem-solver.php
Manesh is putting new tile on a kitchen counter. Each sheet of tile will cover 1.5 ft squared. How many sheets of tile will Manesh need to cover the whole counter?
Answer:
I will try my best to help
Step-by-step explanation:
Launch Problem
a) There are two stores selling boxes of crackers. Based on the information below, which store should Sylvio
purchase the crackers from? Explain your answer.
Store 1
ion
Numbero Boed Cachers
3
5
6
00
9
B
12
2
bl...
Store 2:
C = 1.5b
c = cost and b = boxes of crackers
...
b) Sylvio also needs to purchase lemons. If Sylvio wants to buy 3 boxes of crackers and 6 lemons and he does
not want to go to both stores, which one should he shop at? Explain your answer.
Store 1:
Number of lemons
3
6
9
12
1
Cost (in dollars)
2
3
4
my best answer is B i hope this helps
