Which graph shows the solution to the inequality -3x-7 <20?
>
-10
-5
0
5
10
O
A++
-10
-5
0
5
10
+
-10
-5
0
5
01
10
A++
-10
-5
0
5
10

Answer:

5

Step-by-step explanation:

Answer:

5 is the right answer...I hope this helps you :)

Answer:

Step-by-step explanation:

Given that

\(\alpha =2.5\) ,\(\beta =220\)

The weibull distribution with parameters \(\alpha \ \ and \ \ \beta\)

where \(\alpha =0 \ \ , \beta =0\)

\(F(x,\alpha ,\beta) \left|\begin{array}{cc}\frac{\alpha }{\beta } x^{\alpha-1e^-(x/\beta)^\alpha &x\geq 0\\0&x<0\end{array}\right\)

Then,

\(F(x,\alpha ,\beta )=\left|\begin{array}{cc}0&x<0\\1-e^-^{(x/\beta)}^\alpha &x\geq 0\end{array}\right\)

A) The probability that a specimen's lifetime is at most 250 is

\(P(X\leq 250)=F(250,2.7,220)\\\\=1-e^-^(250/220)^{2.7}\\\\=1-0.2436\\\\=0.7564\)

The probability that the specimen's life time is more than 300 is

\(P(X>300)=1-P(X\leq 300)\\\\=1-F(300;2.7,220)\\\\=1-(1-e^-^{(300/220)^{2.7}\)

\(=e^-^{(300/220)^{2.7}\)

= 0.0992

b)The probability of the specimen's lifetime is between 100 and 250

\(P(100<X<250)=P(X<250)-P(X<100)\\\\=F(250;2.7,220)-F(100;2.7,220)\\\\=(1-e^-^{(250/220)^2^.^7})-(1-e^-^{(100/220)^2^.^7})\\\\=(1-0.2436)-1(1-0.8878)\\\\=0.6442\)

c) The value such that exactly 50% of all specimens have lifetimes exceeding that value is

\(P(X>x)=0.50\\\\1-P(X<x)=0.50\\\\1-(1-e^-^{(x/220)^{2.7}}=0.50\\\\e^-^{(x/220)^{2.7}}=0.50\\\\-(x/220)^{2.7}=In(0.50)\\\\(x/220)^{2.7}=-In(0.50)\\\\(x/220)=[-In(0.50)]^{(\frac{1}{2.7})} \\\\x=220[-In(0.50)]^{(\frac{1}{2.7})}\)

x = 192.07

Answer:

If Patty's dog weighs 48 ounces, and we convert ounces to pounds, our answer is 3. Patty's dog weighs 3 pounds

Step-by-step explanation:

Answer:

1st → 1st

2nd → 3rd

3rd → 2nd

Step-by-step explanation:

just divide the first set of student wishes to the second set of students in the same question. the 1st for example

x-ray to all students is 6/ 36= 1/6 = 1:6

for all students, you add all the students in the table

Answer:

1st=1st

2nd=3rd

3rd =2nd

Step-by-step explanation:

basic math

Answer:

Part A: $3,415.50

B: 11.34%

Step-by-step explanation:

Part A: $31,000 is within the values 10,276≤x≤41,175, so use f(x)=0.12x-205.50

Part B: For the effective tax rate, divide the amount in part A by the taxable income

Part C: Compare both the taxable income and the effective tax rate to the income domains given and the % multiplier. This one is mostly about how you describe the situation, so I'll leave that up to you.

To calculate the taxes owed on a taxable income of $31,000, we use the appropriate equation for the tax bracket it falls into and substitute the value of x. The effective tax rate is calculated by dividing the amount of taxes owed by the taxable income and multiplying by 100. The piecewise function represents the marginal tax rate chart by using different equations for each tax bracket.

Part A:

To calculate the amount of taxes owed on a taxable income of $31,000, we need to determine which tax bracket it falls into. Since $31,000 is greater than $10,275 but less than $41,175, it falls into tax bracket 2. To find the amount of taxes owed, we use the equation for tax bracket 2: f(x) = 0.12x - 205.50. Plugging in $31,000 for x, we get:

f(x) = 0.12 * 31000 - 205.50 = $3,574.50

Therefore, the amount of taxes owed on a taxable income of $31,000 is $3,574.50.

Part B:

To determine the effective tax rate, we divide the amount of taxes owed by the taxable income. Using the result from Part A (taxes owed = $3,574.50) and the taxable income of $31,000, we have:

Effective tax rate = (taxes owed / taxable income) * 100 = (3,574.50 / 31,000) * 100 ≈ 11.52%

Therefore, the effective tax rate on a taxable income of $31,000 is approximately 11.52%.

Part C:

The piecewise function represents the amount of taxes owed as a function of the taxable income. Each part of the function corresponds to a different tax bracket, with the equation for that tax bracket. The marginal tax rate chart is represented in the piecewise function by the different equations for each tax bracket. For example, the equation in part 1 of the function (f(x) = 0.10x) corresponds to the 10% marginal tax rate for the tax bracket $0-$10,275.

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Answer:

Identify the range of the function shown in the graph.

Answer:

range=(10, 8, 6, 4, 2, 0, -2, -4, -6, -8, -10)

Answer:

foil method

add/subtract like terms

Step-by-step explanation:

b×2b=2b²

b×9=9b

-7×2b=-14b

-7×9=-63

-14b+9=-5

=2b²-5b-63

The missing statement in the proof specified is given by: Option B: ∠BCA≅∠DCB

What is the reflexive property of congruence?

According to the reflexive feature of congruence, the geometric quantity under consideration—be it an angle, a line segment, a form, etc.—is congruent to itself.

The third step's key concept in this instance is the "Reflexive Property of Congruence."

The fourth phase comes to the conclusion that the ΔABC~ΔBDC criteria for similarity are met.

Since it was established in the second stage that ∠ABC≅∠BDC

Therefore, in order for the fourth step to apply angle-angle similarity, which requires the angles of two considered triangles to be congruent, we must demonstrate another angle pair of triangles ΔABC and ΔBDC being congruent in the third step.

Internal angle C is the common angle in the triangles ABC and BDC.

As a result, it is consistent with itself due to its reflexive characteristic.

We obtain the following notation for internal angle C from triangle ABC:

Angle ACB and BCA(both will work)

Triangle BDC gives us the following notation for internal angle C:

Angle DCB and BCD(Both will function.)

They fit together. The second choice takes angle C into account, so:

∠BCA≅∠DCB (second option) is the missing statement.

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Answer:

They can occur for various reasons, and they may need different treatments.

Step-by-step explanation:

A total of 6 sheets, or 1403.55 square feet of plywood is required.

Assuming the treehouse is a rectangular prism, we can use the formula for the volume of a rectangular prism to find the dimensions of the treehouse:

Volume = length x width x height

We want the volume to be at least 250 cubic feet, so let's set the height to be 5 feet:

250 = length x width x 5

length x width = 50

We also know that the surface area of the treehouse should be 900 square feet. The surface area includes the floor, walls, and roof, so we can break it down as follows:

Surface area = area of floor + area of four walls + area of roof

Surface area = lw + 2lh + 2wh

Substituting 5 for h and 50/w for l, we get:

900 = 50w + 10w + 500/w

Simplifying and solving for w, we get:

Using a numerical solver, we find that w ≈ 4.37 feet.

Using this value of w, we can solve for l and h:

l ≈ 11.45 feet

h = 5 feet

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\(\huge\textbf{TheStarryNights }\)Hi There!

Solve the Inequality:

2x-1≤x+5

Move all the variables (in this case, x's) to the left, using the opposite operation:

2x-x-1≤5

Move -1 to the left:

2x-x≤5+1

Combine like terms:

x≤6 (Answer)

\(\huge\textbf{TheStarryNights}\)

The equivalent equations of y - 4 = 2/3(x - 1) are y - 4 = 2/3x - 2/3 and y  = 2/3x + 10/3

From the question, we have the following parameters that can be used in our computation:

y - 4 = 2/3(x - 1)

We start by expanding the bracket

So, we have the following representation

y - 4 = 2/3x - 2/3

Next, we add 4 to both sides of the equation

This gives

y - 4 + 4 = 2/3x - 2/3 + 4

Evaluate the like terms

So, we have the following representation

y  = 2/3x + 10/3

Hence, the equivalent equation is y  = 2/3x + 10/3

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The value of c in the polynomial is - 7.

The polynomial is given as follows:

p(x) = 2x³ - x² +  cx + 2 . The value of c if x - 2 is a factor of p(x) can be computed as follows:

Therefore,

p(x) = 2x³ - x² +  cx + 2

when x - 2 is a factor, p(x) = 0

Therefore,

0 = 2x³ - x² +  cx + 2

Hence,

2(2)³ - (2)² +  2c + 2 = 0

16 - 4 + 2c + 2 = 0

12 + 2 + 2c  = 0

2c = - 14

divide both sides by 2

c = - 14 / 2

c = - 7

Therefore,

c = -7

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Answer:

300 glass beads

Step-by-step explanation:

There are 30 beads in each box so you multiply 30 by 10.

\(10*30=300\)

According to the question 560 cups divided by 20 cups per week equals 28 weeks.

Division is a mathematical operation that involves splitting a number or quantity into equal parts. It is an essential process in mathematics, used to solve problems and find solutions. Division involves dividing a number, or a set of numbers, by another number. The result of the division is known as the quotient. Division can also be used to find fractions or ratios, as well as to divide a number into its parts.

Assuming the bag of dog food is a large bag and Carl is feeding his dog 2 1/2 cups daily, the maximum number of days Carl can feed his dog from one full bag is 28.
This is because 2 1/2 cups equals 20 cups per week, and a large bag typically contains approximately 560 cups.
Therefore, 560 cups divided by 20 cups per week equals 28 weeks.

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The entire number of kilometres driven by Roland's family can be determined by using the phrase \(=\frac{69}{10}\)

To determine the total number of kilometres driven by Roland's family, the distance from their home to the gas station and the distance from the gas station to the shop must be added.

There are \(4\times \frac{6}{10}\) kilometres between their home and the gas station, which can also be stated incorrectly as follows:

\(4\times \frac{6}{10}=\frac{(4\times 10+6)}{10} \\\\=\frac{46}{10}\)

The formula for expressing the distance between the gas stop and the store is 2 30/100 kilometers, which can be written as follows:

\(2\times\frac{30}{100} =\frac{(2\times100+30)}{100} \\\\=\frac{230}{100}\)

To calculate the overall distance traveled, we add the two distances:

\(\frac{46}{10} +\frac{230}{100}\)

To combine these fractions, we need to find a common denominator. Only one unique digit, 100, can be used to divide both 10 and 100. In light

of this, we can rewrite the equation as follows using 100 as the common denominator:

\((\frac{46}{10} )\times (\frac{10}{10} )+(\frac{230}{100} )\times (\frac{1}{1} )\)

That amounts to:

\(\frac{46}{100} +\frac{230}{100} =\frac{690}{100}\)

Therefore, we can reduce this fraction by multiplying the numerator and denominator by their ten largest common factor:

\(\frac{690}{100} =\frac{(69/10)}{(100/10)} \\\\=\frac{69}{10}\)

Consequently, the phrase that follows may be used to determine the overall number of kilometres driven by Roland's family:

\(2\times\frac{30}{100} +4\times \frac{6}{10} =\frac{69}{10}\ km\)

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Rest of the question is,

They drove 2 30/100 kilometers from the gas station to the store. Which expression can be used to determine the number of kilometer Ronald's family drove altogether.

The given function is

We know that secA is the inverse of cosA.

From the given function, we form the following triangle

Because the sine function is equivalent to the ratio between the opposite leg and the hypotenuse.

So, let's use the Pythagorean's theorem to find y

Once we have the adjacent leg, we can express the cosine function

Then, the inverse is

a) Using the four basic mathematical operations, the number of balloons that each person hang up is 9.

b) An equation representing the situation is x = (125 - 80)/5.

The four basic mathematical operations include addition, subtraction, division, and multiplication.

The mathematical operations provide solutions to mathematical problems using operands.

An equation is a mathematical statement showing that two or more mathematical expressions are equal or equivalent.

The total number of balloons that Andre has = 125

The number of balloons remaining after hanging some for the school party = 80

The difference (number of balloons used) = 45 (125 - 80)

The number of friends who hang the balloons = 5

The number of balloons hung by each friend of Andre = 9 (45/5)

Thus, we can conclude that each of the 4 friend and Andre hung 9 balloons, with 80 remaining.

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Answer:

3rd quadrant

Step-by-step explanation:

Given:

Point (-2, -9)

Computation:

In 1st quadrant (+ , +)

In 2nd quadrant (- , +)

In 3rd quadrant (- , -)

In 4th quadrant (+ , -)

So given point (-2, -9) is in 3rd quadrant.

Answer: 18 boxes per hour

Step-by-step explanation:

72 divided by 4 is 18

Answer:

The answer is a, they are planes that do not intersect

Answer:

2.4*18 = $43.2

stock price is $43.2

Step-by-step explanation:

the slope goes by several names

• average rate of change

• rate of change

• deltaY over deltaX

• Δy over Δx

• rise over run

• gradient

• constant of proportionality

however, is the same cat wearing different costumes.

and to get it, we simply need two points off of the straight line, hmm let's use the ones in the picture below.

\((\stackrel{x_1}{2}~,~\stackrel{y_1}{4})\qquad (\stackrel{x_2}{6}~,~\stackrel{y_2}{6}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{6}-\stackrel{y1}{4}}}{\underset{run} {\underset{x_2}{6}-\underset{x_1}{2}}}\implies \cfrac{2}{4}\implies \cfrac{1}{2}\)

Answer:

0.15 cubic meters

Step-by-step explanation:

Formula volume = π x radius² x height

Answer

πr2h

Step-by-step explanation:

What do 12y and 8y represent?  You can look up the formula for the volume of a cylinder pir^2h and plug in your dimensions.

Answer:

you can ask to your teacher for help

\(w=\sqrt{6},\sqrt{-6}\)

What is modulus ?

A modulus function is a function that determines a number or variable's absolute value. It generates the size of the variable count. A function with absolute values is another name for it. No matter what input was provided to this function, the output is always favourable. The equation is y = |x|.

Given:

\(w|w|=6\\w(-w)=6\)  

or

\(w(w)=6\)

solving both one by one,

\(w(-w)=6\\-w^{2} =6\\w=\sqrt{-6}\)

and,

\(w(w)=6\\w^{2} =6\\w=\sqrt{6}\)

\(w=\sqrt{6},\sqrt{-6}\)

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Answer:

Step-by-step explanation:

12 quarters

16 nickels

Answer:

it's the third one bc I got it right