Which Expressions Are Equal To 0 When X=-1? Check All That Apply. (2024)

Answer:37

Step-by-step explanation:

The probability of randomly sampling 25 workers from the general population and their mean productivity being 28.2 or higher is 0.0192.

How to illustrate the information?

It should be noted that from the information, after the special training was complete the 25 workers produced 28.2 units every hour with stand deviation of 2.9.

Therefore, the probability of randomly sampling 25 workers from the general population and their mean productivity being 28.2 or higher will be:

= 1 - P[(Z (28.2 - 27)/29/✓25)]

= 1 - P(Z < 2.07)

It should be noted that this will be looked on the distribution table.

= 1 - 0.9808

= 0.0192

Therefore, the probability of randomly sampling 25 workers from the general population and their mean productivity being 28.2 or higher is 0.0192.

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Answer: c=√29

Step-by-step explanation:

We use Pythagoras' theorem:

[tex]c^2=5^2+2^2\\c^2=5*5+2*2\\c^2=25+4\\c^2=29\\[/tex]

Extract the square root of both parts of the equation:

[tex]\sqrt{c^2}=\sqrt{29} \\ c=\sqrt{29}[/tex]

If f (0) = 1, then the point is ( 0 , 1 ) on the graph of f (x).

A point on a graph is represented by the form:

( x , y ) where x is the abscissa and y is the ordinate of the function.

We are given a point on the graph of f ( x ) = y as:

f ( 0 ) = 1

Comparing it with f (x) = y, we get that:

x = 0

y = 1

so, the point will become:

( 0 , 1 )

Therefore, we get that, If f (0) = 1, then the point is ( 0 , 1 ) on the graph of f (x).

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If we rearrange the equation to make x the subject a=4x/t-p, then we will have [tex]x= \frac{a(t-p)}{4}[/tex]

How can the equation be re arrange to make x the subject a=4x/t-p?

from the question we were given the equation a=4x/t-p which is required to rearrange so that X can be made the subject of the formular, and this can be done below:

[tex]a=\frac{4x}{t-p}[/tex]

[tex]4x= a(t-p)[/tex]

[tex]x= \frac{a(t-p)}{4}[/tex]

Therefore If we rearrange the equation to make x the subject a=4x/t-p, then we will have , [tex]x= \frac{a(t-p)}{4}[/tex] because if we make the x the subject of the formular it will stay alone at the one side when all other term at the opposite side.

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NOTE; This is a complete question , no given option , even on internet.

Option a: Broxton have a monthly savings of $0.18 if he purchases the brand that has the lowest price per ounce versus the highest price

Given,

Braxton’s average monthly usage of lotion = 8 ounces

The amount of two different brands of lotion are given:

Brand A: 24 ounces for $3.30

Brand B: 40 ounces for $4.60

We have to find the monthly savings of Braxton if he purchases the brand that has the lowest price per ounce versus the highest price:

We have to calculate amount for one ounce for the two brands given:

Brand A:

24 ounces for $3.30

Amount for one ounce = 3.30/24

Amount for one ounce = $0.1375

Brand B:

40 ounces for $4.60

Amount for one ounce = 4.60/40

Amount for one ounce = $0.115

Now, we have to calculate the amount for 8 ounces.

Brand A:

8 x 0.1375 = 1.1

$1.1 for 8 ounces of Brand A lotion.

Brand B:

8 x 0.115 = 0.92

$0.92 for 8 ounces of Brand B lotion.

Now, we have to calculate the savings:

Brand A – Brand B

1.1 – 0.92 = 0.18

That is, Broxton have a monthly savings of $0.18 if he purchases the brand that has the lowest price per ounce versus the highest price.

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The answer is 17/48

If we have to calculate percent of a number, divide the number by the whole and multiply by 100. Hence, the percentage means, a part per hundred. The word per cent means per 100. It is represented by the symbol “%”.

based on the given conditions , formulates

1×(325-240)÷240

calculate the sum or difference 85/240

cross out the common factor 17/48

so therefore the answer will be 17/48

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The value of f(-5) when we solve the function f(x) is -5.

What does the mathematical function mean?

A function is a statement, tenet, or rule that creates a correlation between two variables. In mathematics, functions are used often and are required to build complicated connections.

A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable). In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.

The function can be solved as:

[tex]f(x) = -(x+8)^{2} +4[/tex]

[tex]=-(-5+8)^{2}+4[/tex]

[tex]=-(3)^{2}+4[/tex]

[tex]=-9+4[/tex]

[tex]=-5[/tex]

Hence, f(-5) = -5

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The expression that represents the perimeter of the triangle in the image is: 7a - 2.

What is the Perimeter of a Triangle?

To find the perimeter of a triangle, add the lengths of the three sides of the triangle together. The sum of the three sides of the triangle is the perimeter of the triangle.

The triangle in the image has the following as the lengths of its sides:

2a - 32a3a + 1

Therefore:

The perimeter of the triangle = 2a - 3 + 2a + 3a + 1

Combine like terms

The perimeter of the triangle = (2a + 2a + 3a) + (- 3 + 1)

The perimeter of the triangle = 7a - 2

Therefore, the expression that represents the perimeter of the triangle in the image is: 7a - 2.

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The area of the floor water puddle as a function of radius is 6860. The function notation is mgt∆x = (20 0.5t)g4∆t.

What is meant by function notation?

Function notation is a method for writing functions that are simple to read and understand. When we use function notation, the independent variable is typically x, and the dependent variable is F. (x).

Therefore,

The bucket moves upward at a rate of 40/10 = 4 meters per minute. If time is measured in minutes, the bucket is x = 4t meters above the ground at time t. Water is dripping out at a rate of 5/10 kg/minute. Because there is initially 20 kg of water in the bucket, there is m = 20 0.5t kg remaining at time t.

Consider the interval of time between t and t + t. During this time, the bucket moves ∆x = 4∆t meters. So the work performed during this interval is

mgt∆x = (20 0.5t)g4∆t,

The bucket is x = 4t meters

and the integral for the total work performed is

[tex]4 g \int_0^{10}(20-0.5 \cdot t) d t \\[/tex]

= [tex]4 g\left(20 t-\left.0.25 t^2\right|_0 ^{10}=700 g=700 \cdot(9.8)=6860\right. \text { joules. }[/tex]

Hence, The area of the floor water puddle as a function of radius is 6860.

The complete question is:

A bucket of water of mass 20 kg is pulled at constant velocity up to a platform 40 meters above the ground. This takes ten minutes during which time 5 kg of water drips out at a steady rate through a hole in the bottom of the bucket. Find the work needed to raise the bucket to the platform

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The probability of the event of a wafer to be conforming and from lot A are as follows;

(a) P(A) ≈ 0.15541

(b) P(C) ≈ 0.84

(c) P(AC) ≈ 0.159

(d) P(A|C) ≈ 0.86

(e) P(C|A) ≈ 0.185

(f) E1 and E2 are independent events

How can the probability of an event be determined?

Probability is given by the ratio of the number of required outcomes divided by the number of possible outcomes.

(a) The number of wafers from lot A = 79 + 13 = 92

79+13+157+43+260+40 = 592

Which gives;

The probability that the wafer is from lot A is therefore;

P(A) = 92/592 ≈ 0.15541

(b) The conforming wafers = 79+157+260 = 496

Which gives;

P(C) = 496/592 ≈ 0.84

(c) The conforming wafers in lot A are 79

Therefore;

The probability that the wafer is from lot A and conforming is therefore;

P(AC) = 79/496 ≈ 0.159

(d) The probability that the wafer is conforming, given that it is from lot A is therefore;

P(A|C) = 79/92 ≈ 0.86

(e) The number of conforming wafers = 496

The probability that the wafer is from lot A given that it is conforming is therefore;

P(C|A) = 92/496 ≈ 0.185

(f) Independent events are events such that the occurrence of one does not impact the probability of the other.

Given that the occurrence of E1 changes the probability of event E2 if the wafer is not replaced, the events are not independent events.

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By using a dilation around the origin, the coordinates of vertex C' are C'(x, y) = (9, - 15).

What are the coordinates of a vertex of a rectangle?

In this problem we find the four vertices of a rectangle and a scale factor and we are asked to determine the coordinates of the image of one of its vertices by using a dilation. Under the assumption of dilation about the origin, then the transformation rule is defined below:

C'(x, y) = 3 · C(x, y)

Where:

C(x, y) - Coordinates of the original point.C'(x, y) - Coordinates of the resulting point.

If we know that C(x, y) = (3, - 5), then the coordinates of vertex C' are:

C'(x, y) = 3 · (3, - 5)

C'(x, y) = (9, - 15)

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Answer:

w>5

Step-by-step explanation:

Go onto symbolab it's a website good for solving math problems like this

Answer:

15 rt2

56 rt2

15 rt3

9 rt5

Step-by-step explanation:

[tex]3\sqrt{50} =3\sqrt{5*5*2} =3*5\sqrt{2} =15\sqrt{2}[/tex]

[tex]8\sqrt{98} =8\sqrt{2*7*7} =8*7\sqrt{2} =56\sqrt{2}[/tex]

[tex]5\sqrt{27} =5\sqrt{3*3*3} =5*3\sqrt{3} =15\sqrt{3}[/tex]

[tex]3\sqrt{45}=3 \sqrt{5*3*3} =3*3\sqrt{5} =9\sqrt{5}[/tex]

0.375 is a rational numbers.

What are rational numbers?

A rational number is any number that can be expressed as a fraction, where both the numerator (the top number) and the denominator (the bottom number) are integers, where the denominator of the fraction is not equal to zero.

0.375 can be written as a fraction.

0.375 = 375/1000

Therefore 0.375 is a rational number.

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The partial products of 3706 × 4 is ( 3000 × 4 ) + ( 706 × 4 ).

Calculating the productof two or more numbers is the procedure known as multiplication in mathematics. When two integers are multiplied together in mathematics, the result is a product or an expression that describes the factors to be multiplied.

The decimal numeral system is widely used to express both integer and non-integer numbers. The way of representing numbers in the decimal system is known as decimal notation.

The given product is 3706 × 4 and can be written as:-

3706 × 4 = [ 3000 + 706 ] × 4

3706 × 4 = ( 3000 × 4 ) + ( 706 × 4 )

Therefore, the partial products of the given expression is ( 3000 x 4 ) + ( 706 x 4 ).

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Answer: The answer would be for "B" that it's 6 units to the left and 0 units down and for "C" It would 1 to the left and -5 units down!

Step-by-step explanation: I used a graph to help me determine these coordinates :D

Answer:

983/300 or 3 83/300

Step-by-step explanation:

Multiply to move the decimal, therefore giving you a whole number.

Based on the change in the water levels of the ten birdbaths in the park, the range of the data is 4.2.

How to find range?

To find the range of a distribution of numbers, you need to subtract the smallest number from the largest number.

The largest number in the distribution of birdbaths is 2.6 and the smallest number in the distribution is -1.6

The range is therefore:
= 2.6 - (-1.6)

= 2.6 + 1.6

= 4.2

The range of numbers are:

2.2, 0.3, -1.5, 2.6, 1.9, 0.4, 0.6, -1.6, 2.5, -0.6

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Answer:

s = 13m + 384

hope this helped <3

Answer:

[tex]50ft[/tex]

Step-by-step explanation:

you have to find the missing side by subtract

[tex]14.8 - 7 = 7.8[/tex]

and

[tex]10.2 - 4.5 = 5.7[/tex]

then you add all these to find the perimeter

[tex]p = 14.8 + 4.5 + 7.8 + 5.7 + 7 + 10.2 [/tex]

[tex]p = 50ft[/tex]

do not leave out your signs

Answer: No solutions

Reason:

Subtract 3x from both sides. They cancel out and go away. The x term is fully eliminated and we're left with the equation 8 = 9, which is a false statement. Therefore, the original equation is always false regardless of what you pick for x. This is why there aren't any solutions.

Visually you can graph y = 3x+8 and y = 3x+9. You'll get parallel lines that never intersect. We need the lines to intersect if we wanted a solution point. Parallel lines have the same slope, but different y intercepts.

Because the system has no solutions, we consider the system inconsistent.

Answer:

x = 9

Step-by-step explanation:

Add 15 on both sides

[tex]x - 15 + 15 = -6 + 15[/tex]

Simplify it

[tex]-6 + 15 = 15 - 6 = 9\\x = 9[/tex]

Well, you start out by recognizing that 4/5ths of an ounce equals 1/5 of the apples weight. Therefore, you must multiply 4/5 by 5 to get the whole of the Apple. (1/5*5).

So, this is the lines,

4/5*5= 20/5, or 4 ounce

Another way, is with decimals, so

0.8*5=4.0

The water output rate for Bryant family is 40L/hr and parkar family is sprinkler 20L/hr.

As in the given problem The Bryant family's sprinkler was used for 25 hours. let water output rate of bryant family is x L/hour.Thus total water output is 25*x L.

The Parker family's sprinkler was used for 40 hours.let water output rate of parker family is y L/hr.Total water output is 40*y L.

Thus 25*x+40*y=1800

and x+y=60

25x+25y=1500

solving linear equation we get y=20 L/hr

Thus x=60-20=40 L/hr.

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There is 9,000 Joule energy present in the bulb

Gravitational Potential Energy

The energy that an object store due to its height in a gravitational field is known as gravitational potential energy.

It can be calculated by using the equation below

U=m.g.h

Where:

m = mass of the object

h = height

g = acceleration due to gravity, or

Since the weight of an object of mass m can be calculated as:

W = m.g

The gravitational potential energy is:

U = W.h

The bell of weight W=180 N at the top of a tower is h=50 m high. Thus its energy is:

U = 180 N * 50 m

U = 9000 Joule

Hence, The bell has 9,000 Joule energy.

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Answer:

O commutative property of multiplication

Step-by-step explanation:

Let's solve for x.

26(4xy)=(26)(4)xy

Step 1: Add -104xy to both sides.

104xy+−104xy=104xy+−104xy

0=0

It doesn't matter what order the numbers are multiplied in (commutative property), the result of multiplying 0 by anything (or anything by 0) is 0. No matter the type of number, whether it be an integer, fraction, decimal, or even imaginary, the product of that number and 0 is 0.

The graph of saving function f(x) = 40 - 1.25x has been plotted with a slope of -1.25.

How to plot a graph?

A graph is a diagram that shows the fluctuation of one variable in relation to one or more other variables.

In order to plot the graph, we need to find out y's values corresponding to x's value

Given the function,

f(x) = 40 - 1.25x

Now to plot it we need to put x = 0

f(0) = 40 so y-intercept is (0,40)

Now keep f(x) = 0

Then 0 = 40 - 1.25x

x = 40/1.25 = 32

So x-intercept is (32,0)

So plot a straight line using points (0,40) and (32,0).

Hence "The graph of saving function f(x) = 40 - 1.25x has been plotted".

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