hey anyone wanna help me with my math test tmrw​

Answer:

The answer is A) The y-intercept of function A is greater than the y-intercept of function B.

Step-by-step explanation:

We can see by graphing function A that the y-intercept (where the graph crosses the y-axis) is (0,3). For function B, we can see that the y-intercept is (0,2). Therefore, we know that 3 is greater than 2, so the y-intercept for function A is greater than that of function B. I'll attach a photo of the first function graphed online.

Hope this helps! Feel free to give me Brainliest if you feel this was helpful. Have a good day and good luck on your assignment! :)

Answer:

A. The y-intercept of function A is greater than the y-intercept of function B.

Step-by-step explanation:

A. y = -5x + 10

B. y = 3x + 2

The y-intercept of function A is greater than the y-intercept of function B.

10 > 2

I got 2 as my y-intercept for B because the y-intercept is where the line intercepts at the y-axis, and that is at point 2.

Hope this helped!

Have a supercalifragilisticexpialidocious day!

The x- and y-components of the vector a are approximately 10.68 \(m/s^2\) and 8.98 \(m/s^2\), respectively.

The vector a is given as (14\(m/s^2\), 40° left of -y-axis).

To find the x- and y-components of the vector, we can use trigonometry.

The x-component can be found by multiplying the magnitude of the vector (14\(m/s^2\)) by the cosine of the angle:

x-component = magnitude * cos(angle)

= 14 \(m/s^2\) * cos(40°)

≈ 10.68 \(m/s^2\)

The y-component can be found by multiplying the magnitude of the vector (14 \(m/s^2)\) by the sine of the angle:

y-component = magnitude * sin(angle)

\(= 14 m/s^2 * sin(40°)\\≈ 8.98 m/s^2\)

The x- and y-components of the vector a are approximately 10.68 \(m/s^2\) and 8.98 \(m/s^2\), respectively.

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Answer:

B) 9

Step-by-step explanation:

Quotient means that it’s for DIVISION. The 18 is the dividend, 2 is the divisor, and the quotient is the answer:

Dividend ÷ Divisor = Quotient

18 ÷ 2 = 9

Answer:

not sure what the question is but if you look for the equation

it's
1/4 * x + 1
or in decimal
0.25x + 1

Population parameters are used to estimate sample statistics, and this is true.

Population parameters are used to describe the characteristics of a population, such as the mean, median, and standard deviation, and are used to make inferences about a population. Sample statistics, on the other hand, are used to describe the characteristics of a sample of a population. For example, a sample statistic could be the mean of a sample of people's heights.

To estimate sample statistics, population parameters must first be known. For example, the sample mean can be estimated using the population mean. If the population means are unknown, then the sample means can be estimated using the sample mean.

In conclusion, population parameters are used to estimate sample statistics, and this is true. Population parameters provide useful information about a population that can be used to make inferences about a sample. Knowing the population parameters allows researchers to make more accurate estimates of sample statistics, which in turn can be used to make more reliable inferences about a population.

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Answer:

x=5

Good Luck!!!

\(y_{minimum} = - 5.2 \\ y_{maximum} = - 5.2 + 1.1 \\ y_{maximum} = - 4.1\)

\(midline = \frac{y_{maximum} + y_{minimum} }{2} \\ midline = \frac{ - 5.2 - 4.1}{2} = \frac{ - 9.3}{2} = - 4.65\)

\(midline \: \: \: \: y = - 4.65\)

To find the number of integers less than 305 that are divisible by 3, we can divide 305 by 3 and round down to the nearest integer. This gives us 101. However, we need to subtract 1 to exclude the number 305 itself, so there are 100 numbers less than 305 that are divisible by 3.

A number is said to be divisible if it divides evenly (leaving no residue). 34, for instance, is divisible by 2 since 2 enters 34 equally. 34 is not divisible by 3 since it would result in a remainder.

According to the three-digit rule of division, a whole number is said to be divisible by three if the total of all its digits is precisely divided by three. A number's ability to be divided by three can be determined without executing division.

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The time taken for the for the train to arrive is 11.2 hours.

1) We have;

distance (d) = 616 miles

Speed (v) = 55 miles per hour

time (t) = distance/speed = 616 miles/55 miles per hour = 11.2 hours

2) We have;

Interest (I) =  $3,360

Principal (P) = $6,000

Rate (R) = 7%

Time = 100 I/PR

Time = 100 × 3,360/6,000 × 7

Time = 8 years

3) Area (A) = 84 square meters

Height (h) = 12 meters

Base (b) = 2 A/h = 2 × 84/12 = 14 meters

4) Perimeter = 37 inches

width = 10 inches

length = P/2 - w = 37/2 - 10 = 8.5 inches

5) V = πr^2h

For the first cylinder;

V = 2009.6 cubic centimeters

h = 10 centimeters

r = √V/πh

r = √2009.6 /3.14 × 10

r = 8 centimeters

For the second cylinder;

r = √V/πh

r = √196.25/3.14 × 10

r= 2.5 centimeters

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Answer:

answer: B

step: simplify both sides: 1/6a < 12

multiply bithsides by 6: 6 * (1/6a) < (6) * (12)

Answer:

Option B

Step-by-step explanation:

Given the following question:

\(\frac{a}{6} <12\)

In order to find the answer to this question, we simply multiply by six on both sides.

\(\frac{a}{6} <12\)
\(\frac{6a}{6}=a\)
\(12\times6=72\)
\(a<72\)

Now in order to graph a solution on a number line we have to keep a few things in mind. For example, the greater than or equal to symbol, and the circle on the number line.

<

In this case we have a < symbol which means the number line will have a open circle. Since the line is < than the variable the line would go into the opposite direction of the < symbol, since it's less than 72.

Which means your answer is option B.

Hope this helps.

Answer:

Apply inverse law

a a⁻¹ = 1

The solution of the given linear equation is x = -6

Step-by-step explanation:

Step(i):-

Given equation -3 x-5=13

Adding '5' on both sides, we get

- 3 x - 5 + 5 = 13  + 5

- 3 x  = 1 8

step(ii):-

apply inverse law

a a⁻¹ = 1

(- 3)(-3)⁻¹ x = 18 (-3)⁻¹

x = 18/-3 = -6

(or)

Dividing '-3' on both sides , we get

                            \(\frac{-3 x}{ -3} = \frac{18}{-3}\)

                             x =- 6

Answer:

Its the first one, y is always the output and y =mx+b, b is always the y-intercept and m is always the slope

Step-by-step explanation:

Answer:

A. y is the output, x is the input, m is the slope and b is the y-intercept

Step-by-step explanation:

In an equation y = mx + b, we know that:

x is the input

y is the output

m is the slope

b is the y-intercept

Looking for an answer that matches these criteria, we can say that the answer is A.

If the takt time for a process is 150 ​seconds, what is the demand for the​ process. The demand is 24 units per hour.

Calculating the demand for a process with a takt time of 150 seconds is relatively simple. To begin, we need to convert the takt time from seconds to hours. This can be done by dividing the takt time by 3,600 (the number of seconds in an hour).

The calculation is as follows:

150 seconds / 3,600 seconds = 0.041666667 hours

Next, we need to calculate the demand for the process by dividing 1 hour by the takt time (in hours). The calculation is as follows:

1 hour / 0.041666667 hours = 24 units per hour

Therefore, the demand for the process is 24 units per hour.

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The researcher most likely used the mean as the measure of central tendency to describe,

the hospital admission rates for coronary heart disease at the 10 local hospitals. The mean is calculated by adding up all of the hospital admission rates and dividing by the total number of hospitals.

By identifying the two hospitals with the highest overall rates of hospital admissions, the researcher likely calculated the mean of all the hospital admission rates and compared each hospital's rate to this value.

This helps to identify which hospitals had rates that were higher or lower than average.

However, without more information on the data distribution, it is possible that the researcher could have also used the median or mode as the measure of central tendency.

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The value of the expression \(4\frac{1}{10}\times-4\times\frac{5}{12}\) is \(-6\frac{5}{6}\).

A mathematical statement expressed as a string of numbers and unknowable variables is known as a numerical expression. Statements can be used to create numerical expressions.

The given, expression is \(4\frac{1}{10}\times-4\times\frac{5}{12}\).

= (41/10) × (- 4) × (5/12).

= (41×-4×5)/(10×12).

= (-820/120).

= - 82/12.

= - 41/6.

= \(-6\frac{5}{6}\).

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The probability that a person who tested positive for HIV actually has the virus is approximately 13.2%.

To determine the likelihood that a person who tested positive for HIV actually has the virus, we can use Bayes' theorem:

P(HIV|+) = P(+|HIV) * P(HIV) / [P(+|HIV) * P(HIV) + P(+|not HIV) * P(not HIV)]

where:

P(HIV|+) is the probability of having HIV given a positive test result

P(+|HIV) is the probability of testing positive given that the person has HIV (95%)

P(HIV) is the prevalence of HIV in the population (0.008)

P(+|not HIV) is the probability of testing positive given that the person does not have HIV (5%)

P(not HIV) is the complement of the prevalence of HIV (1 - 0.008 = 0.992)

Plugging in the values, we get:

P(HIV|+) = 0.95 * 0.008 / [0.95 * 0.008 + 0.05 * 0.992] = 0.132

Therefore, the probability that a person who tested positive for HIV actually has the virus is approximately 13.2%. This means that there is an 86.8% chance that the person who tested positive does not have HIV. It is important to note that this calculation only provides an estimate of the probability and should not be used as a definitive diagnosis. Further testing and evaluation by a healthcare professional is necessary to confirm whether or not a person has HIV.

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Answer:

Step-by-step explanation:

Suppose we are asked to solve the quadratic equation

(

�

−

1

)

(

�

+

3

)

=

0

(x−1)(x+3)=0left parenthesis, x, minus, 1, right parenthesis, left parenthesis, x, plus, 3, right parenthesis, equals, 0. [Why is this a quadratic equation?]

This is a product of two expressions that is equal to zero. Note that any

�

xx value that makes either

(

�

−

1

)

(x−1)left parenthesis, x, minus, 1, right parenthesis or

(

�

+

3

)

(x+3)left parenthesis, x, plus, 3, right parenthesis zero, will make their product zero.

(

�

−

1

)

(

�

+

3

)

=

0

↙

↘

�

−

1

=

0

�

+

3

=

0

�

=

1

�

=

−

3

(x−1)

↙

x−1=0

x=1

​

(x+3)=0

↘

x+3=0

x=−3

​

Substituting either

�

=

1

x=1x, equals, 1 or

�

=

−

3

x=−3x, equals, minus, 3 into the equation will result in the true statement

0

=

0

0=00, equals, 0, so they are both solutions to the equation.

To factor a quadratic equation with a coefficient greater than 1 using the earmuff method, follow the steps of factoring normally but consider the coefficient 'a' when finding the two numbers that add up to 'b'.

When factoring a quadratic equation with a coefficient greater than 1, the earmuff method is a helpful technique. Let's consider a quadratic equation in the form of \(ax^{2}\) + bx + c, where 'a' represents the coefficient of \(x^{2}\). To factor the equation, we follow these steps:

Multiply 'a' and 'c' to obtain the product 'ac'.

Find two numbers that multiply to 'ac' and add up to 'b', the coefficient of 'x'.

Rewrite the middle term 'bx' as the sum of the two numbers found in step 2.

Group the terms in pairs and factor by taking out the common factor.

Factor out the greatest common factor from each pair of terms.

Write the factored form of the quadratic equation.

The earmuff method ensures that we consider the coefficient 'a' when finding the two numbers that add up to 'b'. By accounting for 'a', we ensure that the factored form reflects the relationship between the terms and maintains the accuracy of the equation.

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Answer:

c

Step-by-step explanation:

it’s equal

Step-by-step explanation:

Hey there!

The given equation is;

-3x+4y = 2

Now, from this equation;

\(slope(m) = \frac{ - coeff. \: of \: x}{coeff. \: of \: y} \)

\(m = \frac{ - ( - 3)}{4} \)

\(m = \frac{3}{4} \)

As we know that the slope of line which are parallel to eachother is equal.

Therefore, the slope of the equation which is parallel to the equation is 3/4.

Hope it helps....

Answer:

$122.28

Step-by-step explanation:

Give the following :

Insurance worth = $240,000

Price sold = $225

P(survival) = 0.999572

P(death) = 1 - 0.999572 = 0.000428

If she survives, insurance firm makes $225

If she dies, insurance firm pays $240,000, hence the company losses :

$(225 - 240,000) = $−239775

Expected value (E(x)) = sum of P(i) * X(i)

E(x) = (P(survival) * profit made) + (P(death) * loss incurred)

E(x) = (225 * 0.999572) + (0.000428 * −239775)

= 224.9037 - 102.6237

=$ 122.28

Answer:

$773.3587

Step-by-step explanation:

The probability that the female survives = 0.999572

therefore, probability that female dies = 1-0.999572 = 0.000428

if the female survives the insurance company makes = $225

x=$250

If the female dies the insurance company pays $240,000.

So, the amount with the company = 240000-225 = $ 2390775

Therefore Expected value = 250(0.999572)-2390775(0.000428)= $773.3587

Answer:

a) £6.70  b)6.4%

Step-by-step explanation:

a) 105.20-98.50=6.70

b)105.20-98.50/105.20 x100= 6.4%

i hope i got it right welp

To determine if Hours and Miles are in a proportional relationship, we need to check if the ratio of Hours to Miles is constant.

For the given data, we have:

3 hours / 120 miles = 0.025

5 hours / 200 miles = 0.025

8 hours / 320 miles = 0.025

Since the ratio is constant (0.025), we can conclude that Hours and Miles are in a proportional relationship.

The constant of proportionality (k) is equal to this ratio, which is 0.025. So the equation in the form y=kx is:

Miles = 0.025 * Hours

Or alternatively,

Hours = 40 * Miles

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Answer:

A,E

Step-by-step explanation:

Natural numbers include the normal counting number like 1, 2, 3, and so on and also 0.

B) does not work as negative numbers are not numbers we start counting in

E) does not work as we don't count in fractions

Answer:

6 Slices

Step-by-step explanation:

Total units = 1 + 3 + 2 = 6 Units

6 Units = 18 Slices of Pizza

Iris shared 2 units.

1 Unit = 18/6 = 3 Slices of Pizza

2 Units = 2 * 3 = 6 Slices of Pizza

Answer:

4

Step-by-step explanation:

3*4 is 12 and if you divide 12 by 3(the divisor) you will get 4

The dividend of the given divisor and quotient is 36.

The dividend is the number that is being divided in a division problem. In this case, we can use the formula:

Dividend = divisor × quotient

Here is the step-by-step explanation:

Therefore, if the divisor is 3 and the quotient is 12, the dividend is 36.

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Difference between Simple interest and Compound interest

What is Interest?

The expense of borrowing money, such as the interest added to a loan debt, is known as interest. The rate paid for money on deposit, as in the case of a certificate of deposit, can also be considered interest. Simple interest and compound interest are the two methods for calculating interest.

Simple interest is based on the principal amount, which is the main distinction between it and compound interest. Contrarily, compound interest is calculated using the principle sum and interest that has been compounded over the course of a period.

Simple Interest and Compound Interest Differences:

Simple interest: Simple Interest is the amount repaid for using the borrowed funds over a predetermined amount of time.

Compound Interest: When the total principal amount and the rate of interest for a certain amount of time surpass the due date for payment, this is known as compound interest.

Simple interest: S.I. = (P × T × R) ⁄ 100

Compound Interest: C.I. = P(1+R⁄100)^t − P

Simple interest: When compared to compound interest, the return is significantly smaller.

Compound Interest: The return is much higher.

Simple interest: The principal amount is constant

Compound Interest: Throughout the entire loan duration, the principle amount changes.

Simple interest: The principal amount is what the interest is based on.

Compound Interest: Its principal and accrued interest are covered by the interest that is imposed on it.

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The option that is not characteristic of the t-test is "The Student t distribution has mean of t = 0 and a standard deviation of 5 = 1". The correct answer is option A.

The t-test is a statistical test that uses the Student t-distribution. The Student t-distribution has a mean of 0, but its standard deviation is not equal to 1. The standard deviation of the t-distribution varies depending on the degrees of freedom, which is determined by the sample size. Therefore, the statement in option A is not true. The correct answer is option A.

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