It will take at least 360 points for Kiko's team to win the math contest. The scores for Kiko's teammates were 94,82, and 87, but on of Kiko's teammates lost 2 of those points for an incomplete answer. How many points must Kiko earn her team to win the contest?

Please explain :)

Answer:

16% or 15.5%

Step-by-step explanation:

so just do (890-770)/770

Answer: 57

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Answer:

57

Step-by-step explanation:

y=7

so you do 1 x 7  

so you do 7 plus 10x z when z=5

so 7+50

The total number of ways to get from (0,0) to (7,4) while passing through (1,1) using only right and up movements is the product of the number of ways for each sub problem: \(1 \times 60 \times 24 = 1,440\).

To get from (0,0) to (7,4) while passing through (1,1) using only right and up movements, we can break down the problem into three smaller sub problems:

Get from (0,0) to (1,1)

Get from (1,1) to (7,1)

Get from (7,1) to (7,4)

To solve the first sub problem, we need to take one step to the right and one step up. There is only one way to do this.

To solve the second sub problem, we need to take six steps to the right and zero to three steps up. We can represent this as a sequence of R's (right) and U's (up), with exactly six R's and between zero and three U's. There are four ways to choose the positions of the U's in the sequence (no U's, one U, two U's, or three U's). For each choice of U positions, the sequence can be arranged in (6 choose 2) = 15 ways (because we need to choose two positions out of the eight total positions for the R's and U's). So there are \(4 \times 15 = 60\) ways to get from (1,1) to (7,1).

To solve the third sub problem, we need to take three steps up and zero to seven steps to the right. We can represent this as a sequence of R's and U's, with exactly three U's and between zero and seven R's. There are eight ways to choose the positions of the R's in the sequence (no R's, one R, two R's, ..., seven R's). For each choice of R positions, the sequence can be arranged in (3 choose 1) = 3 ways. So there are \(8 \times 3 = 24\) ways to get from (7,1) to (7,4).

Therefore, the total number of ways to get from (0,0) to (7,4) while passing through (1,1) using only right and up movements is the product of the number of ways for each sub problem: \(1 \times 60 \times 24 = 1,440.\)

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Answer: \(x = \sqrt{14-4y-4} \\x=\sqrt{14-4y-} \\4, y \leq \frac{7}{2}\)

Step-by-step explanation: steps using the quadratic formula

all equations of form a\(x^{2} + bx + c= 0\) can be solved using the quadratic formula: The quadratic formula gives two solutions, one when ± is addition and when it is subtraction. This will take for ever to explain but I think u get the point

An equation that matches the table include the following: y = x + 5.

In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):

y - y₁ = m(x - x₁)

Where:

First of all, we would determine the slope of this line;

Slope (m) = (y₂ - y₁)/(x₂ - x₁)

Slope (m) = (6 - 5)/(1 - 0)

Slope (m) = 1/1

Slope (m) = 1.

At data point (0, 5) and a slope of 1/, a linear equation in slope-intercept form for this line can be calculated by using the point-slope form as follows:

y - y₁ = m(x - x₁)

y - 5 = 1(x - 0)

y - 5 = x

y = x + 5

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Answer:

False

Step-by-step explanation:

If the square root can be simplified to a rational number the solution will not be irrational.

Answer:

False

Step-by-step explanation:

Consider reducible quadratic equations. They have rational solutions.

Answer:

It is called a negative number. For example, -4   -976   -23   -21

Answer:

Step-by-step explanation:

The empirical rule states that for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean. Therefore, to find the interval of hours that represents the lifespan of the middle 68% of light bulbs, we need to find the interval that is one standard deviation away from the mean in either direction.

Since the mean is 1400 hours and the standard deviation is 50 hours, we can use the following formula to find the interval:

(mean - standard deviation, mean + standard deviation)

Plugging in the values, we get:

(1400 - 50, 1400 + 50)

Simplifying, we get:

(1350, 1450)

Therefore, the interval of hours that represents the lifespan of the middle 68% of light bulbs is from 1350 hours to 1450 hours.

Answer:

(1350,1450)

Step-by-step explanation:

The Empirical Rule states that 68% of data points fall within one standard deviation of the mean. So, subtract 50 from the mean and add 50 to the mean to find the lifespan of the middle 68% of bulbs.

Answer: 1.601 × 10^-1

Step-by-step explanation: 1 minute = 60 seconds or 1 second = 1/60 minutes

9.63 seconds = 9.63/60 minutes

9.63/60 = 963/6x1000 = 321/2x1000

=160.1/1000=1.601/10 = 1.601 x 10^-1 minutes :)

The value of the test statistic is approximately 2.54.

To find the value of the test statistic, we can use the formula for calculating the test statistic for a single-sample hypothesis test for the population mean. The formula is:

t = (\(\bar x\) - μ) / (s / √n)

Where:

\(\bar x\) is the sample mean,

μ is the population mean,

s is the sample standard deviation,

n is the sample size.

Given information:

Sample mean (\(\bar x\)) = 5.8 ppm

Population mean (μ) = 5.5 ppm

Sample variance (σ^2) = 0.36 ppm^2

Sample size (n) = 26

To calculate the sample standard deviation (s), we take the square root of the sample variance:

s = √(σ^2)

s = √(0.36)

s = 0.6

Now we can calculate the test statistic (t):

t = (5.8 - 5.5) / (0.6 / √26)

t = 0.3 / (0.6 / √26)

t = 0.3 / (0.6 / 5.099)

t = 0.3 / 0.118

t ≈ 2.54 (rounded to two decimal places)

Therefore, the value of the test statistic is approximately 2.54.

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Answer:

6.249  ft

Step-by-step explanation:

tan(32 degrees) * 10

raj is 6.249 ft tall!

Answer:

The proportion which represents the 65% of 90 is:

Step-by-step explanation:

Given information:

We need to find the proportion that can be used to find

65% of 90

Let us take :

% of

So,

Hence , the proportion which represents the 65% of 90 is

Answer:

The proportion \(\frac{65}{100} = \frac{x}{90}\)

Step-by-step explanation:

\(\frac{65}{100} = \frac{x}{90}\)

(65)(90) = 100x

5850/100 = x = 58.5

58.5 = 65% of 90

Alternatively, you can use the more direct approach:

\(\frac{65}{100} (90)\)

= \(\frac{65 * 9}{10}\) = 585/10 = 58.5

The consecutive even numbers which are as described in the task content are; 12 and 14.

It follows from the task content that the numbers which are as described are to be determined.

Let the consecutive even integers in discuss be; x and x+2.

Therefore, since the sum of their squares is; 340; we have;

x² + (x +2)² = 340

2x² + 4x + 4 = 340.

2x² + 4x -336 = 0.

Divide through by 2;

x² + 2x - 168 = 0

By solving quadratically, we have;

(x +14) (x -12) = 0

Therefore, x = -14 or x = 12.

And also, the second number, (x +2) is; -12 or 14.

Therefore, by choosing the positive pair, the required consecutive even integers are; 12 and 14.

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Approximately 304,657,600 Americans were there in July 2009 based on the estimated 2008 growth rate of 0.88%.

To find the approximate US population in July 2009, we need to apply the growth rate of 0.88% to the initial population in July 2008.

Convert the growth rate from percentage to decimal:

0.88% = 0.0088
Calculate the number of people added to the population in 2008: 302,000,000 * 0.0088 = 2,657,600
Add this number to the initial population to find the population in July 2009:

302,000,000 + 2,657,600 = 304,657,600.

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Answer:

59 percent

Step-by-step explanation:

59 divided by 100 is 0.59, which means 59 percent.

Also, when the total is 100, then the amount out of 100 is the percent ( 59 out of 100 is 59 percent, because it is out of 100).

The gradient vector at point P and the unit vector in the direction of u, the rate of change off(x, y, z) at P in the direction of the vector  u = 〈0, 12,-2, -2〉is Duf(2,-2,-2) = (-2)(0) + (-2)(0) + (-2)(32) = -64.

The gradient of the function f(x, y, z) = x2yz-xyz is a vector and can be found using partial derivatives. The gradient is ▽f(x, y, z) = (2xyz-yz^3, x^2-xyz^2, x^2y-3xyz).

To evaluate the gradient at the point P(2, -2,-2), we substitute these values into the gradient vector. So, Vf(2,-2,-2) = (0,0,32).

The rate of change off f(x, y, z) at P in the direction of the vector u = 〈0, 12,-2, -2〉 can be found by taking the dot product of the gradient vector at point P and the unit vector in the direction of u. So, Duf(2,-2,-2) = (-2)(0) + (-2)(0) + (-2)(32) = -64.

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Answer:

Step-by-step explanation:

the domain of x is (-2,4)

the domain of y is (-4, 2)

(a) The distribution of X, the number of these 9 cases that are resistant to any antibiotic, is binomial with n = 9 and p = 0.30.

(b)  the mean of X is 2.7, rounded to one decimal place.

What is the mean and standard deviation?

The standard deviation is a summary measure of the differences of each observation from the mean. If the differences themselves were added up, the positive would exactly balance the negative and so their sum would be zero. Consequently, the squares of the differences are added.

(a) The distribution of X, the number of these 9 cases that are resistant to any antibiotic, is binomial with n = 9 and p = 0.30.

(b) The mean of X can be calculated using the formula:

mean of X = n * p

Substituting the given values, we get:

mean of X = 9 * 0.30 = 2.7

Therefore, the mean of X is 2.7, rounded to one decimal place.

Hence,

(a) The distribution of X, the number of these 9 cases that are resistant to any antibiotic, is binomial with n = 9 and p = 0.30.

(b)  the mean of X is 2.7, rounded to one decimal place.

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Gabriella skied for 6 hours, Let x be the number of hours that Gabriella skied. We know that she paid $35 for ski rental and $15 per hour for skiing,

for a total of $95. We can set up the following equation to represent this information:

35 + 15x = 95

Solving for x, we get:

15x = 60

x = 4

Therefore, Gabriella skied for 6 hours.

Here is a more detailed explanation of how to solve the equation:

Subtract $35 from both sides of the equation.

15x = 60

15x - 35 = 60 - 35

15x = 25

Divide both sides of the equation by 15.

15x = 25

x = 25 / 15

x = 4

Therefore, x is equal to 4, which is the number of hours that Gabriella skied.

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Answer:

24/100

Step-by-step explanation:

Answer:

It is C

Step-by-step explanation:

7/2 is 3.5. We can see that if we multiply the y value of 2 for d, it becomes 7, which is shown there. All other choices do not make sense.

Answer:

Jamal makes:

60 bricks

Step-by-step explanation:

9 bricks ⇒ 12 bricks

45 bricks ⇒ x bricks

x = 12 * 45 / 9

x = 60

9514 1404 393

Answer:

  4arcsin(x^(1/4)) +C

Step-by-step explanation:

Let x = z^4. Then dx = 4z^3·dz, and the given expression is ...

  \(\displaystyle\frac{dx}{\sqrt{x\sqrt{x}-x^2}}=\frac{4z^3\,dz}{\sqrt{z^4z^2-z^8}}=4\cdot\frac{dz}{\sqrt{1-z^2}}\)

and its integral is ...

  \(\displaystyle\int{\frac{4\,dz}{\sqrt{1-z^2}}}=4\arcsin{(z)}+C=\boxed{4\arcsin{\sqrt[4]{x}}+C}\)

__

Note that the original integrand is only defined on the interval (0, 1).

Answer:

handle your brain its easy

The linear equation y = -x+45 models the scenario.

Solving the linear equation, it exists found that Hans will paint 16 snapdragons.

Since the rate of change exists always the exact, this question exists modeled by a linear equation.

Linear equation: y = mx + b

Where, m exists the slope and b exists the y-intercept.

To find the slope, we have to get two points (x, y), and the slope exists  given by the change in y divided by the change in x.

Points: (11, 34) and (12, 33).

Change in y: 33 - 34 = -1

Change in x: 12 - 11 = 1.

Slope: m = -1/1 = -1

The equation of the line exists y = -x + b

Replacing one of the points, the y-intercept can be found.

Point (11, 34) means that when x = 1, y = 34.

y = -x + b

34 = -1+b

b = 45

Therefore, the equation y = -x+45 models the scenario.

29 daisies mean that y = 29, we have to estimate the value of x for which y = 29.

y = -x+45

simplifying the equation,

29 = -x+45

x = 45 - 29 = 16

The value of x = 16

Therefore, Hans will plant 16 snapdragons.

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Answer:

The equation ✔ x = 45 – y models the scenario.

Hans will plant✔ 16 snapdragons

Step-by-step explanation:

Two times the quantity of the difference m and n is equation to x more than 7

Answer:

4th answer is correct

Step-by-step explanation:

First, let us make x the subject.

\(\sf \frac{x+4}{4} =\frac{y+7}{7}\)

Use cross multiplication.

\(\sf 7(x+4)=4(y+7)\)

Solve the brackets.

\(\sf 7x+28=4y+28\)

Subtract 28 from both sides.

\(\sf 7x=4y+28-28\\\\\sf7x=4y\)

Divide both sides by 7.

\(\sf x=\frac{4y}{7}\)

Now let us find the value of x/4.

To find that, replace x with (4y/7).

Let us find it now.

\(\sf \frac{x}{4} =\frac{\frac{4y}{7} }{4} \\\\\sf \frac{x}{4} =\frac{4y}{7}*\frac{1}{4} \\\\\sf \frac{x}{4} =\frac{4y}{28}\\\\\sf \frac{x}{4} =\frac{y}{7}\)