Answer:
ft is premeter of triangle
Pls help... asappp pls.
Can someone help me with this question please?
Jennifer is 3 years older than twice Zack’s age. The sum of their ages is 21. What are their ages?
Answer:
Jennifer is 15 and Zack is 6
Step-by-step explanation:
z+ (2z+3)=21
z+2z+3-3=21-3
z+2z=18
3z=18
3z/3=18/3
z=6
so plug 6 in for all the variables and their ages are
Zack-6
Jennifer-15
5x + y = 12
Solve for y plz
Answer:
i think 7
Step-by-step explanation:
Answer:
its 7
Step-by-step explanation:
cuz in this you have to move the 5 from the 12 can i have brainleyist
A negative number multiplied by a negative number will result in a ___ product.
Answer:
Positive product
Step-by-step explanation:
Solve the equation.
1/4x-9=3/8x
Select the correct choice below and fill in any answer boxes in your choice.
A. The solution set is . (Simplify your answer.)
B. There is no solution.
Hope you liked that.
Assume that a simple random sample has been selected from a normally distributed population and test the given claim. Identify the null and alternative hypotheses, test statistic, P-value, critical value(s), and state the final conclusion that addresses the original claim. A simple random sample of 25 filtered 100mm cigarettes is obtained, and the tar content of each cigarette is measure. The sample has a mean of 19.4 mg and a standard deviation of 3.52 mg. Use a 0.05 significance level to test the claim that the mean tar content of filtered 100 mm cigarettes is less than 21.1 mg, which is the mean for unfiltered king size cigarettes. What do the results suggest about the effectiveness of the filters? What are the hypotheses? Identify the test statistic. Identify the P-value Identify the critical value(s). State the final conclusion that addresses the original claim. A. Fail to reject H0. There is insufficient evidence to support the claim that the mean tar content of filtered 100 mm cigarettes is less than 21.1 mg. B. Reject H0. There is sufficient evidence to support the claim that the mean tar content of filtered 100 mm cigarettes is less than 21.1 mg. C. Fail to reject H0. There is sufficient evidence to support the claim that the mean tar content of filtered 100 mm cigarettes is less than 21.1 mg. D. Reject H0. There is insufficient evidence to support the claim that the mean tar content of filtered 100 mm cigarettes is less than 21.1 mg. What do the results suggest, if anything, about the effectiveness of the filters? A. The results are inconclusive because the sample size is less than 30. B. The results suggest that the filtered cigarettes have the same tar content as unfiltered king size cigarettes. C. The results do not suggest that the filters are effective. D. The results suggest that the filters are effective. E. The results suggest that the filters increase the tar content.
Answer:
1) Option A: Fail to reject H0. There is insufficient evidence to support the claim that the mean tar content of filtered 100 mm cigarettes is less than 21.1 mg.
2)Option D: The results suggest that the filters are effective
Step-by-step explanation:
We are given;
Sample size; n = 25
Sample mean; x' = 19.4 mg
Standard deviation; s = 3.52 mg
Population mean; μ = 21.1 mg
Let's state the hypotheses;
Null Hypothesis;H0: μ = 21.1 mg
Alternative Hypothesis; Ha; μ < 21.1 mg
Now, since sample size is less than 30,we will use a t-test.
Thus;
t = (x' – μ)/[s/√(n)]
t = (19.4 - 21.1)/(3.52/√25)
t = -2.415
Using an online p-value from t-score calculator as attached with the parameters t = -2.415, DF = 25 - 1 = 24, significance level = 0.05, one tailed, we have;
The p-value is 0.011885.
The calculated p-value is less than the significance level of 0.05. Thus, we will fail to reject the null hypothesis and conclude that there is insufficient evidence to support the claim that the mean tar content of filtered 100 mm cigarettes is less than 21.1 mg.
I NEED HELP ASAP PLEASE
Answer: d s 5\ answer
Step-by-step explanation:
What triangle is a 8cm triangle
Answer:
equilateral triangle.
is negative 73 a natural number
No.
Negative numbers are not natural numbers.
Natural numbers are positive whole numbers.
1, 2, 3.... and so on.
Step-by-step explanation:
Hey there!!
(-73) is not a natural number.
The reason is natural number always starts from 1 and ends at infinity. But as the given number is -73 it is below 1. So, it's not a natural number.
Hope it helps...
I really need help on this question
Answer:
Answer:answer is 6.5
Answer: so please mark as brainlestD
Franklin needs 2.75 cups
of flour for every 1.5 cups
of sugar in his cookie
recipe. This will yield 3.5
dozen cookies. What is the
unit rate for sugar per
cookie? Round your
answer to the tenths place.
1.3 cups of sugar
a man whose income is rupees 576 a year spends rupees 432 a year what percentage of his income does he save
Answer:
He save 25% of his income.
Step-by-step explanation:
I guess I was help full for u
plz follow me for more updates
lets take 576 as 100% so 576=100432=xfollowing unitary methodx=43200/576x=75%now saving %= 100%-75%= 25%Answer:
25%
Step-by-step explanation:
576-432=144
576=100%
144=?
144×100÷576=25%
Find the value of n so that the line perpendicular to y = (-1/4)x-1 passes through the points (n, 3) and (4,11).
Answer:
2
Step-by-step explanation:
You'll need to find the reciprocal of m. -1/4 is your is your m and when you find the reciprocal you flip the number to 4/1 or 4 and change the negative to a positive. Then graph (4,11), you don't need to worry about your y intercept, b, or -1. On your graph go down 4 and over one to the left because it's positive the line should be going like " / " <-- that. Keep going down until your y is three and whatever your x is, is your answer. Ex: (4,11) (3,7) (2,3). Hopefully, you understand :)
Gerry had a coupon for $0.25 off a
frozen pizza. The grocery store
has a special triple coupon deal
and allows customers to use a
single coupon on up to five
items. By how much would his
total grocery bill change if Gerry used the coupon to buy five frozen
pizzas?
Multiply.
0.25 * 5 = $1.25 in savings
So whatever the original price was for each frozen pizza, you multiply that by 5 and subtract that by the total savings.
Best of Luck!
Answer:
1.25
Step-by-step explanation:
0.25*5
A ballroom is 60 ft long and 30 ft wide. Which of the following formulas is the correct formulas to determine the perimeter of the ballroom. a. P=2+60+2+30 b. P=60x30 c. P= 30x 30 + 60 x60 d. P= 2 x 60 + 2x 30
Answer:
The answer is D: 2 x 60 + 2 x 30
Step-by-step explanation:
The perimeter is the lengths of all the sides of a shape combined. Therefore, 60 is one side and 30 is the other side. Since the opposite sides are equal, there are two sides that equal 60 and two sides that equal 30.
So, 60 + 60 + 30 + 30.
60 + 60 = 60 x 2
30 + 30 = 30 x 2
Therefore, the answer is 60 x 2 + 30 x 2.
Simplify.
4−16÷4+42
Item 5
Simplify.
4−16÷4+42
Answer:
42
Step-by-step explanation:
16 dividied by 4 is 4
4 minus 4 is 0
and 0 plus 42 is 42
Answer:
45
Step-by-step explanation:
4-16÷4+42
12÷4+42
3+42
45
Does the following number belong to the interval (1.5, 2.4) ?
Square root of 2
Square root of 3
Square root of 5
Square root of 6
Yes or no
Answer:
Square root of 2: No
Square root of 3: Yes
Square root of 5: Yes
Square root of 6: No
Step-by-step explanation: Verified by RSM
What is 1+1 this is for those who need to answer questions to ask a question
Answer:
2
Step-by-step explanation:
1+1=2
(thank you dude!)
Answer:
2, and thank youuu:)
Step-by-step explanation:
Solve using properties 93+(68+7)
. 4 1/5÷2/3 Express your answer as a mixed number in simplest form. Enter your answer in the box.
Answer:
6 3/10.
Step-by-step explanation:
4 1/5 = 21/5
21/5 / 2/3
=21/5 * 3/2
= 63/ 10
= 6 3/10.
(5^3)(5^2)(5^4)(5^7)
Answer choices
625^16
5^168
625^168
5^16
Find the quotient.
2.38÷5
Answer:
2.38÷5=0.476
hope this helps! best of luck <3
I need Help what’s is value of X
Answer:
56
Step-by-step explanation:
Answer:
The answer to your question is 56.
I need help with math can someone please help me
Answer:
133.1
Step-by-step explanation:
Which best describes the dimensions of a plane?
A plane has zero dimensions because it represents a location on the coordinate plane.
A plane has one dimension because it is made up of an infinite number of points.
A plane has two dimensions because it is a flat surface that has length and width but no depth.
A plane has three dimensions because it is made up of exactly three noncollinear points.
Answer: C) 2 dimensions; flat surface of length and width, but no depth
One way to think of a plane is to think of a flat sheet of paper that extends infinitely in all directions. The paper must be kept flat without any bends.
The statement that describes the dimensions of a plane is (c) a plane has two dimensions because it is a flat surface that has length and width but no depth.
To understand what a plane is, take a look at a flat surface such that:
PaperTop of a tableA white or black boardEtc.Notice that the above surfaces have just two dimensions (horizontal and vertical).
This is so because they are flat surfaces, and they have no heights
Hence, the statement that describes the dimensions of a plane is (c)
Read more about planes at:
https://brainly.com/question/13459927
help me plz 50 points and ill give brainliest if you answer all
Answer:
11) [tex]2x=-4[/tex]
Divide both sides by 2:
[tex]\frac{2x}{2}=\frac{-4}{2}[/tex]
[tex]x=-2[/tex]
12) [tex]2^3\cdot \:2^1=2^{3+1}=2^4[/tex]
([tex]2^4=16)[/tex] if you wanted the exact value.
13) [tex]-3+10=x[/tex]
Switch sides:
[tex]x=-3+10[/tex]
Rearrange:
[tex]x=10-3[/tex]
[tex]x=7[/tex]
14) [tex]10^2-64[/tex]
[tex]10*10-64[/tex]
[tex]100-64[/tex]
[tex]36[/tex]
15) [tex]\sqrt{100}-5^2[/tex]
[tex]10-5^2[/tex]
[tex]10-5*5[/tex]
[tex]10-25[/tex]
[tex]-15[/tex]
16) [tex]\frac{1}{4}x=-10[/tex]
Multiply both sides by 4:
[tex]4\cdot \frac{1}{4}x=4\left(-10\right)[/tex]
[tex]x=-40[/tex]
17) [tex]\left(2^3\right)^2=2^{3*2}=2^6[/tex]
[tex](2^6=64)[/tex] if you wanted the exact value.
18) [tex]\left(2^3\right)\left(2^2\right)=2^{3+2}=2^5[/tex]
[tex](2^5=32)[/tex] if you wanted the exact value.
Bonus Question:
Terrorist attacks took place against the United States in September 11 2001.
This is named "September 11 attacks" and you can search more about it online.
Answer:
10. x = -2
12. 16
13. x = 7
14. 36
15. -15
16. x = -40
17. 64
18. 32
Friday 9/11 The plane hijackings that struck the World Trade Center, the Pentagon, and a Pennsylvania field killed 2,977 people.
Step-by-step explanation:
How many 3/4-cup servings are in 1/2 of a cup of milk?
Answer:
4!! hope this helps <3
help me please i need help
Answer: x=y/(3b-7)
Step-by-step explanation:
To solve for v, you want to use algebraic properties to isolate x.
y=3bx-7x [factor out x]
y=x(3b-7) [divide both sides by 3b-7]
x=y/(3b-7)
Now, we know that x=y/(3b-7).
Answer:
3bx -7x = y
or, x(3b -7) = y
or, x= y/(3b -7)
Houston, Texas get an annual rainfall of 5.2 times more than El Paso, Texas. Houston has an average rainfall of 46 inches, about how much rain does El Paso get?
Answer:
8.85 inches
Step-by-step explanation:
Divide Houston's average by 5.2 to find El Paso's:
46/5.2
= 8.85 inches
So, El Paso gets about 8.85 inches of rain
Answer:
8.846
Step-by-step explanation: