What is the answer to
sqrt(-49)

Answer:

Holding your breath is called static Apnea and a common person can't hold their breath for long. If a person holds their breath for long and dies because of it, it may be called lack of breath or lack of respiration.

second choice i’m prolly wrong

Answer:

264 sq. in.

Step-by-step explanation:

The easiest way to find the lateral surface area is to multiply the perimeter of the base times the height.

In your case the perimeter of the base is 2(8) + 2(3) = 16 + 6 = 22

The height is 12, so multiply 12 times 22 = 264 sq. in.

John found a stray cat in the alley. The cat looked hungry and sad, so John decided to feed the cat. He brought her home and fed her some milk. The milk quenched the cat’s thirst. The cat seemed very tranquil after that.

Tranquil is an adjective that means that someone or something is peaceful or calm. Quenched is a verb which means to satisfy one's thirst by drinking something. It is the past tense of quench. Alley is a noun which means a long and narrow passageway.

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Answer:

3.  

If a conditional statement is written in the form “If p then q”, how is the inverse of the conditional statement written?

If not q, then not p

If not p, then not q  

If not q then p

If not p then q

To write the inverse of a conditional statement, you use the "opposite" of the hypothesis and the conclusion in a conditional statement.

Step-by-step explanation:

Contrapositive statement of "if p then q" written as If not q, then not p which is correct option (C).

Contrapositive of the conditional statement is defined as interchange the hypothesis and the conclusion of the inverse statement.

Contrapositive statement of "if p then q" written as If not q, then not p

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Answer:

u+133°=180

u=180-133

u=47°

Answer:

U = 47

T = 86

Step-by-step explanation:

133 + U = 180 ( straight line)

or, U = 180 - 133

or, U = 47

Being isosceles triangle

47 + 47 +T = 180

or, 94 + T = 180

or, T = 180 - 94

or, T = 86

hope it will help you

The limit definition of a derivative is a mathematical method used to calculate the instant rate of change of a characteristic at a particular point. it is based at the idea of the limit of a function because the input techniques a certain cost.

The limit definition of a derivative is expressed as follows:

\(f'(x) = lim (h → 0) [f(x + h) - f(x)] /h\)

Wherein f'(x) represents the derivative of the function f(x) at a particular factor x. The expression \(( f(x + h) - f(x)) / h\) represents the common price of alternate of the characteristic over a small interval of size h, focused at x. The limit of this expression as h approaches 0 represents the instant fee of change of the characteristic at x, or the slope of the tangent line to the function at that factor.

The limit definition of a derivative is a fundamental concept in calculus and is used to calculate the slopes of tangent lines, to find maximum and minimum factors, and to clear up optimization issues in a huge variety of packages.

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Answer: 7e-5 millimeters, and the nanometer scale is more appropriate

Step-by-step explanation: PLEASE MARK ME BRAINLIEST!!!!!!

-divide the length value by 1e+6

-The millimeter scale and the centimeter scale are two huge, while the nanometer scale is too small. The nanometer scale is often used to measure atoms and viruses.

Answer:

a) The length of the virus in millimetres is 0.000 07 mm.

b) Viruses are microscopic and so nanometres are the more appropriate unit for writing the length of the virus since the nanometre is a smaller unit of measurement than the millimetre.

Step-by-step explanation:

SI is the abbreviation for The International System of Units.

The SI base unit for length is metres (m).

Milli and nano are SI prefixes used to form decimal multiples or submultiples of SI units.

Therefore, to convert nanometres to millimetres, multiply the nanometres by 10⁻⁶:

So 70 nanometres is:

Viruses are microscopic and so nanometres are the more appropriate unit for writing the length of the virus since the nanometre is a smaller unit of measurement than the millimetre.

Answer:

Please find attached the required graph created with Microsoft Excel

4. The solution is x = -1, y = -2

5. Both equations represent the same line and the system of equation has Infinitely many solutions

6. The system of equation represent two parallel lines, therefore, the system of equation has no solutions

Step-by-step explanation:

4. The given system of equation are;

y = -3·x - 5...(1)

y = 9·x + 7...(2)

Equating both values of y from the two equations, gives;

9·x + 7 = -3·x - 5

12·x = -5 - 7 = -12

x = -12/12 = -1

x = -1

y = 9·x + 7 = 9 × (-1) + 7 = -2

y  = -2

5. y = -2·x - 5...(1)

6·x + 3·y = -15...(2)

Substituting the value of 'y' from equation (1) in equation (2), gives;

6·x + 3·y = 6·x + 3 × (-2·x - 5) = -15 = -15

Therefore, equations (1) and (2) are the same and has infinitely many solutions

6. y = -4·x + 3

8·x + 2·y = 8

Substituting the value of 'y' from equation (1) in equation (2), gives;

8·x + 2·y = 8·x + 2×(-4·x + 3) = 6

However, 8·x + 2·y = 8, therefore, equations (1) and (2) do not intersect and they have no common solution.

9514 1404 393

Answer:

  3√2

Step-by-step explanation:

The length of the diameter is given by the distance formula:

  d = √((x2 -x1)² +(y2 -y1)²)

  d = √((2 -(-4))² +(8 -14)²) = √(36 +36) = 6√2

The radius is half the diameter, so the radius of your circle is 3√2.

I think niether I'm soooo sorry if I get it wrong

The number of students who take only lunch or dinner but not both is 50

Since Venn diagram is used to visually represent the differences and the similarities between two concepts.

Given that all 70 students take lunch or dinner or both meals at the hostel.

students take lunch or dinner or both meals at the hostel = 70

lunch = 30

dinner= 50

Students who both or any one of the drinks= 900-125=725

Now number of students who take only lunch or dinner but not both

= 50 - 30

= 20

Then 20 + 30 = 50

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Answer:

when x = -12:

\(\implies y=\dfrac13(-12)-2\)

\(\implies y=-\dfrac{12}{3}-2\)

\(\implies y=-4-2\)

\(\implies y=-6\)

when x = 0:

\(\implies y=\dfrac13(0)-2\)

\(\implies y=0-2\)

\(\implies y=-2\)

The range is ( 290, 230).

In statistics, the standard deviation is a measure of the amount of variation. The low standard deviation indicates that the values tend to be close to the expected value of the set, while a high standard deviation indicates that the values are spread out over a wide range.

According to the question,

The middle 50% of the pregnancies are within two standard deviations of the mean: 260 ± 2*15

               = ( 260 + 2*15 , 260 - 2*15)

               = ( 260 + 30, 260-30)

               = ( 290, 230)

Hence the range is ( 290, 230).

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Answer:

the answer is A. 10° because C is almost half a right angle, D is close to it so it's also a no no, E is a little too big for it

Electrical energy consumption is measured at kilowatt-hour (KWh). Thus the cost of energy consumed for the month is $28.512

What does kilowatt-hour mean?

The rate of consumption of energy is measured in kilowatt-hour.

In the given question

11 cent is paid per kilowatt-hour.

60 watts of light for 1 hour = 0.06 KWh

3 light bulbs of 60 Watts each for 1 hour = 3 x  0.06

                                          = 0.18 KWh

But,

30 days = 30 x 24 hours

                       = 1440 hours

The total energy consumed for the month = 1440 x 0.18

                                     =  259.20 KWH

The total cost for the month = 0.11 x 259.20

                                              = $28.512

Thus, the total cost for the month is $28.512

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Answer:

m = -8

Step-by-step explanation:

-9 + 6m = -3m - 1 + 10m

-8 + 6m = 7m

-8 = m

Answer:

x(3√6)

Step-by-step explanation:

Radicals:

  Take out a variable or number for every pair of the variable or number  inside the radicals

        \(\sf 3\sqrt{6x^2}=3*\sqrt{6*x*x}\\\\\)

                   \(\sf = 3x \sqrt{6}\)

Answer:

\(A=4\pi r(l+r)\)

Step-by-step explanation:

The total surface area of a cone is given by :

\(A=\pi rl+\pi r^2\\\\=\pi r(l+r)\)

Put r = 2r and l = 2l in the above formula

\(A=\pi \times 2r(2l+2r)\\\\A=2\pi r(2l+2r)\\\\=2\pi r \times 2(l+r)\\\\=4\pi r(l+r)\)

Hence, the total surface area of the cone is \(4\pi r(l+r)\).

Based on the given information, we cannot determine which theater the Musical was projected in. We can only eliminate certain possibilities.

What is Algebraic expression ?

Algebraic expression can be defined as combination of variables and constants.

Based on the given information, we can use a process of elimination to determine which theater the Musical was projected in:

Only one couple has the same initial in their names, and they watched a Musical.

This means that the couple who watched the Musical has the same initial in their names, but we don't know which couple it is yet.

Nobody went in the theater with the same initial as his/her name.

This means that none of the couples watched a movie in a theater that has the same initial as either of their names.

Anthony didn't watch a Romance nor a Thriller.

This means that Anthony did not watch a Romance or a Thriller, but we don't know which theater he was in yet.

Sci-fi, which was not in theater A, wasn't watched by Anne nor Dahlia.

This tells us that neither Anne nor Dahlia watched a Sci-fi movie, but we don't know which theater they were in yet.

Among Celine and Daniel, one of them watched a Thriller, the other was in theater A.

This means that either Celine or Daniel watched a Thriller and the other was in theater A, but we don't know which one was in which theater yet.

Anne didn't watch a Thriller. Carl didn't watch a Musical. Bernadette didn't go to theater D.

This means that Anne did not watch a Thriller, Carl did not watch a Musical, and Bernadette was not in theater D, but we still don't know which theater the Musical was in.

Bruce and Carl didn't sit in nearby theaters.

This tells us that Bruce and Carl were not in adjacent theaters, but we still don't have enough information to determine which theater the Musical was in.

Therefore, Based on the given information, we cannot determine which theater the Musical was projected in. We can only eliminate certain possibilities.

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Check the picture below.

The model y = β0 + β1x + ε tells us about the linear relationship between the variables x and y.

In this model:

- y represents the dependent variable that we want to explain or predict
- x represents the independent variable that we use to explain or predict y
- β0 (beta0) is the intercept, which is the value of y when x is zero
- β1 (beta1) is the slope, representing the change in y for a one-unit change in x
- ε (epsilon) is the error term, accounting for the unexplained variation in y that is not captured by the model

The model helps us understand the association between x and y, with β1 indicating the strength and direction of the relationship. A positive β1 indicates a direct relationship (as x increases, y increases), while a negative β1 indicates an inverse relationship (as x increases, y decreases).

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Answer: length = 116, width = 60. Or 116x60 yards

Step-by-step explanation:

The length of the field is 4 yards less than double the width. First, let's put this in mathematical terms.

Suppose L = length and W = width, we know that "The length of the field is 4 yards less than double the width". This can be expressed as L = 2W-4.

Now we know perimeter is length + length + width + width. In terms of L and W, this would be 2L + 2W. We can simplify this to 2(L+W).

Since we know L = 2W-4, we can plug it into the equation of 2(L+W) to get 2(2w-4+w) = 352.

We can then use some basic algebra to solve.

2(3w-4) = 352

3w-4 = 176

3w = 180, w = 60.

Now since L = 2W-4, we know that L = 60 x 2 - 4 = 116.

We can check our work by adding 116 + 116 + 60 + 60 to see if it equals 352. It does.

So length = 116, width = 60

When the weight moves from x = -8 cm to x = 8 cm, the spring moves from its maximum stretched position to its maximum compressed position.Hence, the spring oscillates between its maximum stretched and compressed positions when the weight is set in motion. Therefore, the spring is a simple harmonic oscillator.

Given: Displacement x

= 8 cos t

= Acos(ωt+ φ) where A

= 8 cm, ω

= 1 and φ

=0. To find: What is the spring?Explanation:We know that displacement is given by x

= 8 cos t

= Acos(ωt+ φ) where A

= 8 cm, ω

= 1 and φ

=0.Comparing this with the standard equation, x

= Acos(ωt+ φ)A

= amplitude

= 8 cmω

= angular frequencyφ

= phase angleWhen the spring is at equilibrium position, the weight attached to the spring does not move. Hence, no force is acting on the weight at the equilibrium position. Therefore, the spring is neither stretched nor compressed at the equilibrium position.Now, the spring is set in motion resulting in a displacement of x

= 8 cos t

= Acos(ωt+ φ) where A

= 8 cm, ω

= 1 and φ

=0. The maximum displacement of the spring is 8 cm in the positive x direction. When the weight is at x

= 8 cm, the restoring force of the spring is maximum in the negative x direction and it pulls the weight towards the equilibrium position. At the equilibrium position, the weight momentarily stops. When the weight moves from x

= 8 cm to x

= -8 cm, the spring moves from its natural length to its maximum stretched position. At x

= -8 cm, the weight momentarily stops. When the weight moves from x

= -8 cm to x

= 8 cm, the spring moves from its maximum stretched position to its maximum compressed position.Hence, the spring oscillates between its maximum stretched and compressed positions when the weight is set in motion. Therefore, the spring is a simple harmonic oscillator.

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The displacement of the weight attached to the spring is given by the equation x = 8 cos t. The amplitude of the motion is 8 centimeters and the period is 2π seconds.

The equation x = 8 cos t represents the displacement of a weight attached to a spring in simple harmonic motion. In this equation, x is measured in centimeters and t is measured in seconds.

The amplitude of the motion is 8 centimeters, which means that the weight oscillates between x = 8 and x = -8.

The period of the motion can be determined from the equation T = 2π/ω, where ω is the angular frequency. In this case, ω = 1, so the period T is 2π seconds.

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Answer:

b.

Step-by-step explanation:

Answer:

B. increased resistance to environmental factors

Step-by-step explanation:

Answer:

Equal volumes

Step-by-step explanation:

Given

\(h \to\) height of cone

\(d \to\) diameter of cone

\(H \to\) height of cylinder

\(D \to\) diameter of cylinder

Such that:

\(d = 2D\)

\(h =\frac{3}{4}H\)

Required

The relationship between the volumes

The volume of a cylinder is:

\(V_1 = \pi R^2H\)

Where

\(R = 0.5D\)

So:

\(V_1 = \pi (0.5D)^2H\)

\(V_1 = \pi *0.25*D^2H\)

\(V_1 = 0.25\pi D^2H\)

The volume of the cone is:

\(V_2 = \frac{1}{3}\pi r^2h\)

Where

\(r =0.5d\)

\(r = 0.5 * 2D\)

\(r = D\)

and

\(h =\frac{3}{4}H\)

So, we have:

\(V_2 = \frac{1}{3}\pi * D^2 * \frac{3}{4}H\)

\(V_2 = \frac{1}{4}\pi * D^2H\)

\(V_2 = 0.25\pi * D^2H\)

\(V_2 = 0.25\pi D^2H\)

So, we have:

\(V_1 = 0.25\pi D^2H\)

\(V_2 = 0.25\pi * D^2H\)

\(V_1 = V_2\)

Answer: : When a cone and cylinder have the same height and radius the cone will fit inside the cylinder. The volume of the cone will be one-third that of the cylinder. If the radius or height are different, then there is no relationship between them.

Step-by-step explanation:

To select all the tables that show quadratic functions, look for tables with a second-degree polynomial equation in the form of "y = ax² + bx + c".

Tables that show quadratic functions:

(a).

x y

-2 8

-1 3

0 0

1 1

2 4

This table shows a quadratic function in the form of y = x² - 2x.

(b)

x y

-3 0

-2 1

-1 4

0 9

1 16

2 25

3 36

This table shows a quadratic function in the form of y = x².

A quadratic function is a second-degree polynomial function that can be expressed in the general form of "y = ax² + bx + c", where a, b, and c are constants.

In this form, the variable "x" is squared, and the coefficient "a" determines whether the parabola opens upward or downward.

To identify tables that show quadratic functions, we need to look for tables that display data points that follow a quadratic pattern.

That is, the dependent variable (y) changes in a way that corresponds to a quadratic equation.

In the first table, the values of y correspond to the quadratic equation y = x² - 2x. The second table shows a set of data points that corresponds to the quadratic function y = x².

Therefore, these two tables show quadratic functions.

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Answer:

(3.-4)

Step-by-step explanation:

The vertex of a parabola is the point where the parabola crosses its axis of symmetry. If the coefficient of the x2 term is positive, the vertex will be the lowest point on the graph, the point at the bottom of the “ U ”-shape.

Answer: $574

Step-by-step explanation:

First we need to calculate the price of the snowboard before the addition of the tax. This will be represented by x. Therefore,

6% of x = $32.50

0.06 × x = $32.50

0.06x = $32.50

x = $32.50 / 0.06

x = $541.67

Therefore, the total cost including the sales tax will be:

= $541.67 + $32.50

= $574.17

= $574