Answer:
b
Step-by-step explanation:
[character limit pass]
What is the potential energy of a 500-N pole-vaulter when she is 4 m above the ground?
Answer:
2000J
Step-by-step explanation:
mg=500
h(height)=4
500 x 4 = 2000J
Please help me answer this with the correct answer :)
Explain your answer
I will give braisnlt :)
Answer:
B
Step-by-step explanation:
The answer is B. If you look at the graph at its current state you can see that the lines are parallel to each other. This is important because it says TWO lines are being translated and rotated. So whatever happens to one line happens to the other line which proves they were always parallel to each other.
5TH GRADE LEVEL QUESTION. look at photo and answer handing brainliest.
Answer:
13/24
can't be simplified
Step-by-step explanation:
you can make them have the same denominator by multiplying.
denominator of 24 is 8*3
and 3*8
then multiply their numerators by the same values
7/8 times 3= 21/24
1/3 times 8= 8/24
subtract
21-8= 13
so 13/24
Rita is making chili. The recipe calls for 4 3/4
cups of tomatoes.
How many cups of tomatoes are used in the recipe? Enter your answer as a fraction greater than 1.
Answer:
5 3/4
Step-by-step explanation:
Answer:
in my opinion i would say.. 4/1 cause how many cups but if im wrong im sorry
Step-by-step explanation:
If a and b are real numbers, the commutative property of multiplication states that
Answer:
[tex]a*b=b*a[/tex]
Hello! So, here is my question. :)
Find the quantity represented by each percent:
what is 66% of 740 kilometers?
Answer:
488.4 kilometers
Step-by-step explanation:
suppose X and Y are independent random variables, both with normal distributions. If X has a mean of 45 with a standard deviation of 4 and Y has a mean of 35 with a standard deviation of 3, what is the probability that a randomly generated value of X is greater than a randomly generated value of Y
Answer:
0.9772 = 97.72% probability that a randomly generated value of X is greater than a randomly generated value of Y
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.
In this question:
[tex]\mu_X = 45, \sigma_X = 4, \mu_Y = 35, \sigma_Y = 3[/tex]
What is the probability that a randomly generated value of X is greater than a randomly generated value of Y
This means that the subtraction of X by Y has to be positive.
When we subtract two normal variables, the mean is the subtraction of their means, and the standard deviation is the square root of the sum of their variances. So
[tex]\mu = \mu_X - \mu_Y = 45 - 35 = 0[/tex]
[tex]\sigma = \sqrt{\sigma_X^2+\sigma_Y^2} = \sqrt{25} = 5[/tex]
We want to find P(X > 0), that is, 1 subtracted by the pvalue of Z when X = 0. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{0 - 10}{5}[/tex]
[tex]Z = -2[/tex]
[tex]Z = -2[/tex] has a pvalue of 0.0228
1 - 0.0228 = 0.9772
0.9772 = 97.72% probability that a randomly generated value of X is greater than a randomly generated value of Y
angie painted 1/20 of the fence in half an hour. how long will it take her to finish one fence?
Answer:
What are the choices
Step-by-step explanation:
Antar makes a total of $40.75
selling comic books and packages
of baseball cards. If he sells 13
books for $2.50 each, how many
packages of baseball cards did he
sell at $0.75 each?
Answer:
The answer would be he sold 11 packs of baseball cards at $0.75 each.
Step-by-step explanation:
11 packs of cards at 75 cents each.
Select the correct answer
What is the range of this function?
Answer:
The answer is A.
Step-by-step explanation:
Plato
The range of the function is (A)
What is graph?
Graph is a mathematical representation of a network and it describes the relationship between lines and points.
As, per the graph we can see that the range for y starts from negative infinity but it only exceeds upto +4.
Hence, the range is -∞ < y ≤ 4.
Learn more about graph here:
https://brainly.com/question/16608196
#SPJ2
I need help with this math question real quick
1- Length of PQ: 233
2-Area of rectangle: 21840
3- Length of RS: 241.87
4-Area of triangle: 12600
Explanation-to find the lengths of RS and PQ use the pythagorean theorem [tex]a^{2} +b^{2}= c^{2}[/tex]
to find area of triangle use [tex]A= \frac{BxH}{2}[/tex] (area = base times height divided by 2)
to find area of rectangle use[tex]A= LxW[/tex] (area= length times width
Answer:
i really need to ask my q thnak you
Step-by-step explanation:
What is -6x - 10(x - 4)
inequalities of x + 9 < 12 I need help solving this
I didn’t get the answer
Answer:
uh why not..?
Step-by-step explanation:
Answer:
you're reㅜarded
Step-by-step explanation:
you're not getting it
help w number 8, will mark brainliest !!!
Answer:
d
Step-by-step explanation:
because both the measurement and the congruent side are opposite in sentence
Is the product of 12 and 3 4 more or less than 12? Explain your answer in complete sentences.
Answer:
Either way, whether that's 3 and 4, 3, 4, or 34, the product will still be bigger than 12.
Step-by-step explanation:
The only thing that would lessen 12 would be if it were multiplied by a negative number.
A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 432 gram setting. It is believed that the machine is underfilling the bags. A 24 bag sample had a mean of 426 grams with a variance of 225. A level of significance of 0.01 will be used. Assume the population distribution is approximately normal. Determine the decision rule for rejecting the null hypothesis. Round your answer to three decimal places.
Answer:
The decision rule will be as follows: Reject the null hypothesis if test-statistic < -2.5 or fail to reject the
Now, Our test-statistic was -1.96, which is greater than -2.5. Thus, we will fail to reject the null hypothesis.
Step-by-step explanation:
We are given;
Population mean; μ = 432
Sample mean; x¯ = 426
Sample size; n = 24
Variance; Var = 225
Now, standard deviation from variance is; σ = √Var
Thus, σ = √225
σ = 15
Hypothesis is defined as;
Null hypothesis; H0: μ ≥ 432
Alternative hypothesis: Ha: μ < 432
Formula for the test statistic since sample size is less than 30 is;
t = (x¯ - μ)/(σ/√n)
Plugging in the relevant values;
t = (426 - 432)/(15/√24)
t = -1.96
Now,we are given significance level of 0.01; our DF = n - 1 = 24 - 1 = 23.
From t-table attached, we can see that at DF of 23 and significance value of 0.01, the critical value is 2.5
However, this is a left tailed test as the rejection region is to the left.
Thus, the critical value of a left tailed test is negative. Thus, in this case our critical value will be -2.5.
The decision rule will be as follows: Reject the null hypothesis if test-statistic < -2.5 or fail to reject the
Now, Our test-statistic was -1.96, which is greater than -2.5. Thus, we will fail to reject the null hypothesis.
Explain what operation can be used to solve the equation 3.5n=10.5. What is the value of n
Answer:
see below
Step-by-step explanation:
3.5n=10.5
Divide each side by 3.5 to isolate n
3.5n /3.5 = 10.5/3.5
n =3
Factor the following quadratic function:
-
y = 7x2
- 48x - 7
How do I do it
Answer:
(7x + 1)(x - 7).
Step-by-step explanation:
y = 7x^2 - 48x - 7
Use the 'ac' method:
7 * 7 = 49
Now we need 2 numbers whose product is 49 and whose sum is the 'middle' number -48.
They are -49 and 1,
Now we write the function as:
7x^2 - 49x + 1x - 7
= 7x((x - 7) + 1(x - 7) (x - 7) is common so we have
(7x + 1)(x - 7).
The scores on a test are normally distributed with a mean of 70 and a standard deviation of 14. Find the score that is two and one half standard deviations below the mean
Answer:
35
Step-by-step explanation:
We solve the above question using z score formula
z = (x-μ)/σ, where
x is the raw score = ?
μ is the population mean = 70
σ is the population standard deviation = 14
We were given the z score in the question as: Two and one half standard deviations below the mean
Hence:
= μ - zσ
= 70 - 2.5(14)
= 70 - 35
= 35
The score that is two and one half standard deviations below the mean is 35
Help i have been stuck on this question!
Answer:
its b i have the quiz
Step-by-step explanation:100 % sure
Solve for x. ( Look at the picture). I don't know the answer. I accidentally click on option A.
Answer:
x = ±3/5
Step-by-step explanation:
x² = 9/25
x = √9/√25
x = ±3/5
Answer this Please (10) points for this
4 points
Jenny has $50. She needs to buy pens and markers for her business.
Jenny wants to buy 22 pens that cost $1.15 each and 15 markers that cost
$2.05 each. What problem do you see Jenny having? How much will the
pens and markers cost Jenny ?*
Your answer
on the first day of school bethanys family donated $60 to the field trip fundraiser. what percent of their goal did bethanys family donate the goal is 8,000
Answer:
B
Step-by-step explanation:
Got it right on edge, plz mark brainliest
Answer: 0.25
Step-by-step explanation:
In a woodworking class, you need to make five triangles out of plywood. Each triangle has a height of 6 inches and a base of 14 inches. Which equation can you use to solve for the total amount of plywood you will need?
Answer:
210 in²Step-by-step explanation:
Use the formula for area:
A = 1/2bhEach triangle will have the area of:
A = 1/2*6*14 = 42 in²Total amount of plywood will be:
42*5 = 210 in²4 hundreds = _ ones
Answer:
4 hundred ones
Step-by-step explanation:
4 hundreds = 400
400 = 4 hundred ones.
The only difference is the plural use and singular use.
I hope this helped and if it did I would appreciate it if you marked me Brainliest. Thank you and have a nice day!
Find the roots of h(t) = (139kt)^2 − 69t + 80
the smaller root is:
the larger root is:
The answers will consist of algebraic expressions containing the parameter k.
What positive value of k will result in exactly one real root?
K = ?
Step-by-step explanation:
Given
[tex]h(t)=(139kt)^2-69t+80[/tex]
For roots [tex]h(t)=0[/tex]
[tex](139kt)^2-69t+80=0\\t=\dfrac{69\pm\sqrt{(-69)^2-4\times (139k)^2(80)}}{2\times 139}\\[/tex]
[tex]t=\dfrac{69\pm\sqrt{4761-6182720k^2}}{278}[/tex]
Larger root: [tex]t=\dfrac{69+\sqrt{4761-6182720k^2}}{278}[/tex]
smaller root: [tex]t=\dfrac{69-\sqrt{4761-6182720k^2}}{278}[/tex]
For exactly one root D=0
i.e. [tex]4761-6182720k^2=0\\\\k=\dfrac{69}{139\times 4\times 2\times \sqrt{5}}\\k=0.0277[/tex]
plz help me im trying to defeat a boss
Answer:
15200
Step-by-step explanation:
HURRY PLEASEEEE. Which points are either in Quadrant II or Quadrant IV of the coordinate plane? Check all that apply.
(7, –10)
(–6, –2)
(–1, 1)
(0, 2)
(–5, –4)
(8, 9)
(9, 0)
(2, –7)
Answer:
theres no picture but ig i can try
Step-by-step explanation:
1
2
5
7
Answer:
(2, –7)
(7, –10)
(–1, 1)
Step-by-step explanation:
(7, –10) Quadrant 4
(–6, –2) Third quadrant
(–1, 1) Second quadrant
(0, 2) First
(–5, –4) Third
(8, 9) First
(9, 0) First
(2, –7) Fourth
