Answer:
i think, THINK
in still air: 791
in wind: 90
im not too sure but its an answer!! if u get it wrong then not my fault ok
What is 6721 x 381 divided by 14 + 84
Answer: 26129.6
Step-by-step explanation:
6721 x 381 = 2560701
14 + 84 = 98
2560701 / 98 = 26129.6
absolute value evaluate problem
|-4| =?
SHOW WORK:
The expression |-4| has a value of 4 when evaluated
How to evaluate the absolute expressionFrom the question, we have the following parameters that can be used in our computation:
|-4|
The above expression is an absolute expression
So, the solution is the positive value of the expression in bracket
Evaluate the expressions in the brackets
So, we have the following representation
|-4| = 4
Hence, the expression has a value of 4
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The shapes below are drawn on a centimetre grid. Show that the triangle and the square have the same area.
Both figures have an area of 4 units squared, so yea, the area is the same.
How to find the areas?The area of a square of side length S is equal to S squared, for the square, we can see that:
S = 2 units.
Then the area is:
A = (2 units)² = 4 square units.
For the triangle, we know that the area is equal to:
A = B*H/2
Where B = base, H = height.
We can see that:
B = 2 units.
H = 4 units.
Then:
A = (2 units)*(4 units)/2= 4 square units.
So yea, both have the same area.
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How many solutions are to the equation below
9(x-4)= 9x-33
Answer:
No solution
Step-by-step explanation:
9(x-4)=9x-33
9x-36=9x-33
-9x -9x
36=33
36 is not equal to 33 so therfore
there is no solution
8. Solve for x. Round your answer to the nearest tenth if necessary.
Answer:
The length of line segment PR is 32.8 units to the nearest tenth.
Step-by-step explanation:
Interior angles of a triangle sum to 180°.
Therefore, the measure of angle O in triangle MNO can be calculated as follows:
\(\implies m \angle M + m \angle N + m \angle O=180^{\circ}\)
\(\implies 61^{\circ} + 52^{\circ} + m \angle O=180^{\circ}\)
\(\implies 113^{\circ} + m \angle O=180^{\circ}\)
\(\implies m \angle O=67^{\circ}\)
Therefore, the three angles in triangle MNO are:
m∠M = 61°m∠N = 52°m∠O = 67°As two angles in triangle PQR are the same as two of the angles in triangle MNO, the three angles are the same in both triangles.
m∠M = m∠P = 61°m∠N = m∠Q = 52°m∠O = m∠R = 67°Therefore, triangle MNO is similar to triangle PQR.
As corresponding sides are always in the same ratio in similar triangles:
\(\implies \sf MN:PQ=NO:QR=MO:PR\)
From inspection of the given triangles:
MN = 19MO = 16PQ = 39PR = xSubstitute these values into the relevant ratio:
\(\implies \sf MN:PQ=MO:PR\)
\(\implies 19:39=16:x\)
\(\implies \dfrac{19}{39}=\dfrac{16}{x}\)
Cross multiply:
\(\implies 19 \cdot x=16 \cdot 39\)
\(\implies 19x=624\)
To solve for x, divide both sides by 19:
\(\implies \dfrac{19x}{19}=\dfrac{624}{19}\)
\(\implies x=32.8421052...\)
Therefore, the length of line segment PR is 32.8 units to the nearest tenth.
Equate the triangle through their angles and see whether they are similar
180-(61+52)180-11367°2nd
180-67+6152°Triangles are equal
the sides must be proportional
x/39=16/1919x=16(39)x=32.8 unitsA two-way ANOVA with interaction has how many sources of variation?
Sources of variation, or components of the two-way ANOVA include two factors, each with two or more levels (groups), and collectively, factors are often referred to as the main effects in these types of ANOVA.
What is ANOVA?Analysis of variance is a set of statistical models and the estimation processes that go with them that are used to examine the differences between means. Ronald Fisher, a statistician, invented ANOVA. ANOVA is a statistical procedure that divides observed variance data into distinct components for use in further tests. For three or more sets of data, a one-way ANOVA is used to learn about the connection between the dependent and independent variables. ANOVA, which stands for Analysis of Variance, is a statistical test used to compare the means of multiple groups.
Here,
The sources of variation, or components of the two-way ANOVA, are two factors, each having two or more levels (groups), and factors are sometimes referred to as the main effects in these forms of ANOVA.
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josh and jill bought 196 square acres of land. all four sides of the land are equal. what is the perimeter of the land?
Answer:
49
Step-by-step explanation:
The measures of the first and second angles in a triangle are equal.The third angle measures 9 times the sum of the equal angles. Find the measurements of the three angles
9514 1404 393
Answer:
9°, 9°, 162°
Step-by-step explanation:
Let x represent the measure of the first angle. Then the sum of all of the angles in the triangle is ...
x + x + 9(x+x) = 180°
20x = 180° . . . . . . . . . . collect terms
x = 180°/20 = 9° . . . . . divide by 20
9(x+x) = 162° . . . . . . . find the third angle
The three angle measures are 9°, 9°, and 162°.
Factor each polynomial. Look for a GCF first.
2x²-8k-90
O
2 (x-9) (x - 5)
2 (x + 9) (x + 5)
2 (x − 9) (x + 5)
2 (x + 9) (x - 5)
Answer:
Step-by-step explanation:
First, you could factor 2 out of the whole thing. The result would be 2(x^2-4x-45). Now we find the factors of 45 which are 1, 45, 5, 9, 15, 3. We have to find the pair that adds up to 4, and multiply to get 45. After some guess and check, we can find that 5 and 9 are those numbers. Now we have to get the right signs. Since the result is a negative number for -8k, and -90, the number that is a negative must be less than the other negative. -9<-5, so the answer would be 2(x-9)(x+5)
A researcher claims that the proportion of people who are right-handed is 70%. To test this claim, a random sample of 600 people is taken and its determined that 397 people are right handed.
The following is the setup for this hypothesis test:
H0:p=0.70
Ha:p≠0.70
In this example, the p-value was determined to be 0.041.
Come to a conclusion and interpret the results for this hypothesis test for a proportion (use a significance level of 5%)
Select the correct answer below:
A: The decision is to reject the Null Hypothesis.
The conclusion is that there is enough evidence to reject the claim.
B: The decision is to fail to reject the Null Hypothesis.
The conclusion is that there is not enough evidence to reject the claim.
Option A is the correct answer The decision is to reject the Null Hypothesis. The conclusion is that there is enough evidence to reject the claim.
A test statistic is defined as how closely the distribution of the data matches the distribution predicted under the null hypothesis of the statistical test while using it.
the formula to calculate is:
z = (proportion mean - population proportion) ÷ sqrt(pq/n)
z=( X‾-p)÷ (pq / √n)------(1)
where X‾ is the sample mean,
μ0 defines the population mean,
p is the standard deviation of the sample
n is for the size of the sample.
proportion mean = x/n = 424/600 = 0.71
X‾=0.71
population proportion (p) = 70% = 0.70
μ0=0.70
q = 1 - p = 1 - 0.70 = 0.30
n = 600
z = (0.71 - 0.70) ÷ sqrt(0.70×0.30/600)
= 0.01 ÷ sqrt (3.5×10^-4)
= 0.01 ÷ 0.019
z= 0.53
The test statistic is 0.53
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Is 7,301,771 divisible by 6?
\(\huge\boxed{Hi\: there!}\)
\(\huge\mathfrak{Question:}\)
Is 7,301,771 divisible by 6?
\(\huge\mathfrak{Answer:}\)
No.
Remember, divisible by means the given number can be divided by a number without a remainder.
If we divide 7,301,771 by 6, we will get a remainder.
\(\huge\boxed{Therefore,\: 7,301,771 \: isn't \: divisible\: by 6.}\)
\(\huge\mathfrak{Good\: luck!}\\\huge\bold {~CheerfulTeen}\)
8. Say that on average teenagers eat 10 slices of pizza each week, with a 95% confidence interval of (8-12). We take a sample of teenagers and find that this group eats an average of 6 slices each week. What can we say about the teenagers in the sample in relation to the confidence interval?
Teenagers consume 10 pieces of pizza on average per week, with a 95% confidence interval (8-12).
Additionally, we examine a sample of youngsters and discover that on average, they consume 9 slices per week.. I.e. sample mean value lies within the 95% confidence interval (8, 12) it means that we can use this to estimate population mean which can lie in given 95% of interval and it can said to best estimate for population mean.
In order to determine the average number of slices consumed each week by teenagers, a sample of 9 teenagers is provided.
Hence, the stated value—that they consume nine slices—lies within the given range. So our claim is correct with probability of 95%.
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NEED HELP ASAPPPPPPPPP Luis deposits $1000 in savings account A earning 8%
simple interest, and $800 in savings account B earning 5%
compound interest. Which account has more after 10 years,
and what is the difference?
A: Account A will have 496.88 more
B: Account A will have 400 more
C: Account B will have 503.12 more
D: Account B will have $200 less
9514 1404 393
Answer:
A: A has $496.88 more
Step-by-step explanation:
A graphing calculator works this problem nicely.
The balance in the simple interest account after t years is ...
A = 1000(1 + 0.08t)
The balance in the compound interest account after t years is ...
B = 800(1 +0.05)^t
The larger starting balance and the higher interest rate keep the A account balance higher than the B account balance for more than 29 years. Then, the effect of interest compounding takes over. Until then, account A has more money in it. The calculator shows Account A has $496.88 more after 10 years.
Add. -4 1/7 + 8 3/8 Enter your answer as a simplified fraction by filling in the boxes.
Answer:
\(4 \frac{13}{56} = \frac{223}{56} \)
Step-by-step explanation:
-4 ¹/7 + 8 ⅜
-(4 + ¹/7) + 8 + ⅜
-4 - ¹/7 + 8 + ⅜
(-4 + 8) + (-¹/7 + ⅜)
4 + 13/56
\( = 4 \frac{13}{56} = \frac{223}{56} \)
\($-4\frac{1}{7} +8\frac{3}{8}\) is equal to \($4\frac{29}{56}\).
We have -
\($-4\frac{1}{7} +8\frac{3}{8}\)
We have to solve it.
What is the method to convert mixed fraction into normal fraction?For any mixed fraction - \($a\frac{x}{y}\) you can convert it into simple fraction by -
\($\frac{y\times a+x}{y}\).
According to the question, we have -
\($-4\frac{1}{7} +8\frac{3}{8}\)
Assume the sum to be equal to S.
S = \($\frac{-27}{7} +\frac{67}{8}\) = \($\frac{253}{56} =4\frac{29}{56}\)
Hence -
\($-4\frac{1}{7} +8\frac{3}{8}\) is equal to \($4\frac{29}{56}\).
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A boat travels 82 km on a 160 degree course. Find the distances it travel south and east, respectively
A boat travels 82 km on a 160-degree course. Find the distances it travels south and east, respectively
see the attached figure to better understand the problem
step 1
Find out the East's distance (dx)
we have that
cos(20)=dx/82
dx=82*cos(20)
dx=77.05 Kmstep 2
Find out the South's distance (dy)
sin(20)=dy/82
dy=82*sin(20)
dy=28.05 Km-9x + 1 = - 80 Find the value of x
Answer:
Step-by-step explanation:
80+1=9x
81=9x
x=9
Step by step explanation:
Step 1:
→\(-9x + 1 = - 80\)
Step 2:
→\( - 9x = - 80 - 1\)
Step 3:
→\( - 9x = - 81\)
Step 4:
→\(x = \dfrac{ - 81}{ - 9} \)
Step 5:
→\(x = 9✓\)
Which inequality is equivalent to the given inequality? -4(x+7)< 3(x-2)
An equivalent inequality to the given \(-4(x + 7) < 3(x - 2)\) is \(7x > -22.\)
To find an equivalent inequality, we can start by simplifying the given inequality and then make adjustments to preserve its truth.
Let's simplify the given inequality step by step:
\(-4(x + 7) < 3(x - 2)\)
Expanding both sides:
\(-4x - 28 < 3x - 6\)
Grouping like terms:
\(-4x - 3x < -6 + 28\)
Simplifying:
\(-7x < 22\)
To maintain the direction of the inequality, we need to multiply both sides by -1.
However, when we multiply or divide both sides of an inequality by a negative number, the direction of the inequality is reversed.
Therefore, we need to flip the inequality sign:
\(7x > -22\)
Hence, an equivalent inequality to the given \(-4(x + 7) < 3(x - 2)\) is
\(7x > -22.\)
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The total cost of 5 kg rice and 6 kg sugar is Rs 940. If the
rate of rice increases by 20% and the rate of sugar decreases
by 10%, the total cost of 4 kg rice and 3 kg sugar will be
Rs 627. By what percent the cost of 1 kg rice is more or less
than the cost of 1 kg sugar. Find it.
The percent cost of 1 kg rice is less than the cost of 1 kg sugar by 11 1/9%.
What is percent increase?We first calculate the difference between the original value and the new value when comparing a rise in a quantity over time. The relative increase in comparison to the initial value is then determined using this difference, and it is expressed as a percentage.
Let the cost price of rice is R and cost price of sugar is S.
Case 1 : total cost of 5 kg rice and 6 kg sugar is Rs. 940.
5R + 6S = 940 ...(1)
Case 2 : rate of rice increased by 20% and the rate of sugar decreased by 10%.
The new cost price of rice = R + 20% of R = 1.2R
The new cost price of sugar = S - 10% of S = 0.9S
So, the total cost of 4 kg rice and 3 kg sugar will be Rs. 627.
Thus,
4 × 1.2R + 3 × 0.9S = 4.8R + 2.7S = 627 ..(2)
From equations (1) and (2) we have,
(5R + 6S)/(4.8R + 2.7R) = 940/627
R/S = 8/9
Hence, if the price of rice is 8 then the price of sugar is 9.
It is clear that the price of sugar is more than that of rice.
The percent cost by which cost of rice is less than sugar is:
(9 - 8)/ 9 (100) = 11 1/9%.
Hence, the cost of 1 kg rice is less than the cost of 1 kg sugar by 11 1/9%.
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What is f(0)?
12 only
2 and 3 only
–2, –1, 1, and 2 only
–2, –1, 1, 2 and 12
Answer:
The expression f(0) represents the y-intercept on the graph of f(x). The y-intercept of a graph is the point where the graph crosses the y-axis.
Step-by-step explanation:
HOPE IT HELPS ❤
Answer:
12
Step-by-step explanation:
Doing the test rn
Which statements are true about y s 8 and its graph? Check all that apply.
O y = 0 is part of the solution set.
y = 8 is part of the solution set.
O y = 10 is part of the solution set.
There is an open circle on the graph at 8.
There is a closed circle on the graph at 8.
The arrow on the graph points left.
The arrow on the graph points right.
Answer:
1,2,5,and 6
Step-by-step explanation:
I did the assignment
Solve S = A+(N-1) D for N
a. = +−
b. = −+
c. =+1−
d. =
e. =
Solving for N is an illustration of subject of formula, and the equation of N is N = 1 + (S - A)/D
How to solve the equation for N?The equation of S is given as:
S = A+(N-1) D
Subtract A from both sides
S - A = (N-1) D
Divide both sides by D
(S - A)/D = N-1
Add 1 to both sides of the equation
N = 1 + (S - A)/D
Hence, the equation of N is N = 1 + (S - A)/D
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A(0, 1), B(4,1), C(1, 2), D(1,6): AB and CD
how do you find the area of this problem
Answer: 240
Step-by-step explanation:
You would multiply each of the sides to get the final answer of 240 (:
The final exam grade distribution for all students in the introductory statistics class at a local community college is displayed in the table, with A = 4, B = 3, C = 2, D = 1, and F = 0. Let X represent the grade for a randomly selected student from the class. A 2-column table with 5 rows. Column 1 is labeled grade with entries 4, 3, 2, 1, 0. Column 2 is labeled probability with entries 0.4, 0.32, 0.17, 0.08, 0.03. What is the mean of the distribution? 2 3 2.98 3.50
The mean of the discrete distribution that models this situation is of 2.98.
What is the mean of a discrete distribution?The expected value of a discrete distribution is given by the sum of each outcome multiplied by it's respective probability.
Considering the table, the probability distribution is given by:
P(X = 4) = 0.4.P(X = 3) = 0.32.P(X = 2) = 0.17.P(X = 1) = 0.08.P(X = 0) = 0.03.Hence the mean is given by:
E(X) = 4 x 0.4 + 3 x 0.32 + 2 x 0.17 + 1 x 0.08 + 0 x 0.03 = 2.98.
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What is the area of
the segment? Express
the answer in terms
of pi.
The area of the segment is 9( π-2) units²
What is area of segment?The area of a figure is the number of unit squares that cover the surface of a closed figure.
A segment is the area occupied by a chord and an arc. A segment can be a major segment or minor segment.
Area of segment = area of sector - area of triangle
area of sector = 90/360 × πr²
= 1/4 × π × 36
= 9π
area of triangle = 1/2bh
= 1/2 × 6²
= 18
area of segment = 9π -18
= 9( π -2) units²
therefore the area of the segment is 9(π-2) units²
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At the store finlay bought 48 ounces of candy for 4$ how many ounces could he buy for $1
A jar has marble ms in these three colors only: 7 green, 10 blue, 3 red.
What is the probability of randomly choosing a green marble, after choosing (and keeping) a red marble?
Answer with a percentage rounded to the nearest tenth.
The probability of randomly choosing a green marble after you have chosen red is 4.4%
What is probability?
Simply put, probability measures how probable something is to occur. We can discuss the probabilities of various outcomes, or how likely they are, whenever we are unsure of how an event will turn out. Statistics is the study of events subject to probability.
Given
A jar has 20 marbles: 3 green, 12 blue, 5 red.
Probability;
In probability theory, an event is a set of outcomes of an experiment or a subset of the sample space.
The total number of marbles = 20
The number of green marbles= 3
The number of blue marbles = 12
The number of red marbles = 5
The probability of choosing a red marble = Number of red marbles / Total number of marbles
= 5/20
The probability of choosing a green marble is = Number of green marbles / New total number of marbles
= 3/19
Therefore,
The probability of randomly choosing a green marble after you have chosen red is;
= 5/20 * 3/19
= 3/68
percentage = 3/68 * 100 = 4.4%
Hence, the probability of randomly choosing a green marble after you have chosen red is 4.4%
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Owning a small and successful business isn't easy! There is a monthly cost of shipping supplies and
products of $2000. There is also a monthly cost of $1600 for each employee you hire. If you hire x
employees for the year, what is the total cost, C, in dollars, to keep your business running?
Answer:
\(C(x)=24,000+19,200x\)
Step-by-step explanation:
Mathematical Modeling
To model a real-life situation, a mathematical model can be constructed in such a way it accurately represents the variables measured in the system.
This problem requires to build a model for the yearly cost of a small and successful business.
The first data is the fixed monthly cost or the money the owner must pay regardless of the number of employees he hires. This cost includes shipping supplies and products for $2,000. To operate for a full year, the fixed cost is 12*$2,000=$24,000.
The other component of the cost function is the variable cost of x employees. Given each employee costs $1,600 each month, having x employees cost 1,600x each month. For a full year, the variable cost will be
12*1,600x=19,200x.
We finally form the total cost function:
\(\boxed{C(x)=24,000+19,200x}\)
3. (2 pts) Find the slope of a line parallel to AB if A(-7,0), B (-5,5).
Answer:
–7a,0,b(–5,5),
Step-by-step explanation:
I hope this helps
Today only, a table is being sold at a 62% discount. The sale price is $144.40.
What was the price yesterday?
$ 232.90
Step-by-step explanation:62% ........... $144.40
100% ..........$ x
x = 144.40×100/62
= 14440/62
= $ 232.90