Find angle A to the nearest tenth.
(Show work if you can plss)

Answer: 29

Step-by-step explanation: 3 times 7 = 21 + 8 = 29

Answer:

7=3x+8

x=-1/3

Step-by-step explanation:

we just replace f(X) with 7

7=3x+8

-8.    -8

-1=3x

/3. /3

-1/3=x

Hopes this helps please mark brainliest

The system of linear equations that can be formed to find x and y is 3x + 2y = 15.12 and 2x + 4y = 19.36. Then one can of chili costs $2.37 and one jar of salsa costs $4.005.

Let us consider  x being  the cost of one can of chili and y be the cost of one jar of salsa.
Then we can write two equations
3x + 2y = 15.12
2x + 4y = 19.36

We can multiply the first linear equation by 2 and subtract it from the second  linear equation in order to  eliminate x
(2x + 4y = 19.36) - 2(3x + 2y = 15.12)
= -4x + 0y
= -9.48

Applying Simplification to this equation
-4x = -9.48
Dividing both sides by -4 gives us:
x = 2.37

Now we can place this value of x into either of the original equations to find y
3(2.37) + 2y = 15.12
7.11 + 2y = 15.12
Subtracting 7.11 from both sides
2y = 8.01
Dividing both sides by 2
y = 4.005
Then, one can of chili costs $2.37 and one jar of salsa costs $4.005.

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Answer:

5.2

Step-by-step explanation:

adding all the numbers together and dividing it by 10.

Answer:

mean = 5.2

Step-by-step explanation:

The mean (or average) of a group of numbers is defined as the value calculated by adding all the given numbers together and then dividing the result by the number of numbers given.

Therefore,

\(\boxed{\mathrm{mean = \frac{sum \ of \ the \ numbers}{number \ of \ numbers}}}\).

In the question, the numbers given are: 3, 7, 2, 4, 7, 5, 7, 1, 8, and 8.

Therefore,

sum = 3 + 7 + 2 + 4 + 7 + 5 + 7 + 1 + 8 + 8

       = 52

There are 10 numbers given in the question. Therefore, using the formula given above, we can calculate the mean:

\(\mathrm{mean = \frac{52}{10}}\)

            \(= \bf 5.2\)

Hence, the mean of the given numbers is 5.2.

Answer:

5000

Step-by-step explanation:

1000 ÷ 2 = 500 x 10 = 5000

Answer:

Step-by-step explanation:

Formula for compound interest:

A= P(1+r/n)^n x t

A = final amount

P = initial principal balance

r = interest rate

n = number of times interest applied per time period

t = number of time periods elapsed

We know that Serena pays annually meaning yearly (12 months or 1 year)

So after substituting all the numbers in,

A= 1000(1+0.02/12)^(12x10)

We change the rate to 0.02 because we must divide 2% by 100%. And divide the rate by number of times applied per time (n).

DISCLAIMER:

I have not done compound interest questions in a long time but if you want to confirm my answer, go to a calculator site and just input the numbers on there.

The function C(t) that models the the total cost of the electrician's services for spending [t] hours is C(t) = 70t + 150 and the total cost of four hour work will be $430.

Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, observations and results of the given problem.

Given is an electrician who charges a set fee of $150 for every house call and then charges an additional $70 per hour.

Assume that function C(t) represents the function that models the the total cost of the electrician's services for spending [t] hours at house working.

Fixed rate of electrician = $150

Rate per hour = $70

Now, we can write the function C(t) as -

C(t) = 70t + 150

For a four hour job, we have t = 4. We can write -

C(4) = 70 x 4 + 150

C(4) = 280 + 150

C(4) = 430

For 4 hour work, the electrician will cost $430.

Therefore, the function C(t) that models the the total cost of the electrician's services for spending [t] hours is C(t) = 70t + 150 and the total cost of four hour work will be $430.

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Explanation

Step 1

to solve this, we need replace the x value, with the given value,so

Answer:

\(m=8\)

Step-by-step explanation:

\(9m-3(m+6)=2(m+7)\)

\(9m-3m-18=2m+14\)

\(6m-18=2m+14\)

\(4m= 32\)

\(m=8\)

Answer:

3/5

Step-by-step explanation:

The constant of proportionality is the slope

m = (y2-y1)/(x2-x1)

   = (3-0)/(5-0)

   =3/5

The angle formed by the bearings AB and BC is N28°59'E. The azimuth of the bearings is N58°34'E.

To find the angle formed by the bearings, we subtract the bearing of BC from the bearing of AB.

The bearing of AB is N45°35'E, and the bearing of BC is 5°36'E.

To subtract these angles, we convert them to decimal degrees.

N45°35'E is equal to 45.58°, and 5°36'E is equal to 5.60°.

Now we subtract 5.60° from 45.58° to find the angle formed by the bearings.

45.58° - 5.60° = 39.98°

So, the angle formed by the bearings AB and BC is approximately 39.98°.

To find the azimuth of the bearings, we take the average of the two bearings.

N45°35'E is equal to 45.58°, and 5°36'E is equal to 5.60°.

Adding these two angles and dividing by 2 gives us the azimuth.

(45.58° + 5.60°) / 2 = 51.18°

Therefore, the azimuth of the bearings is N58°34'E.

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Answer:

Your answer is 3/4  or  0.75

Step-by-step explanation:

4/5  /   16/15

4/5  *   15/16

Cross simplify.

Answer:

(8,2)

Step-by-step explanation:

The rule is (x,y) becomes (-x, y).  You can visualize this.  (-8,2) is 8 units to the left of the origin (0,0) and two units up from the origin (0,0).  Now, it we flip it so that is is on the other side of the y axis, it is still two units above the origin(0,0), but it is now 8 units to the right of the origin.

Answer:

p : q : r = 10 : 4 : 3

Step-by-step explanation:

Expressing the ratio in fractional form

\(\frac{q}{r}\) = \(\frac{4}{3}\) ( cross- multiply )

4r = 3q ( divide both sides by 4 )

r = \(\frac{3}{4}\) q = \(\frac{3}{4}\) × 2 = \(\frac{3}{2}\)

Then

p : q : r

= 5 : 2 : \(\frac{3}{2}\) ( multiply all parts by 2 )

= 10 : 4 : 3

Answer:

p : q : r​ =

10 : 4 : 3

Step-by-step explanation:

to make q equal in the two equations :

p : q = 5 : 2   x4

p : q = 20 : 8

q : r = 4 : 3    x2

q : r = 8 : 6

    So    p : q : r​ =

           20 : 8 :6

           10 : 4 : 3

The length (in cm) of an arc of a circle 5π

60°=π/3 radians

A unit circle's arc length is expressed in radians.

We may get the length of an arc using the following formula given an angle and a circle's diameter: ArcLength = (angle / 360) * (2 * pi * radius) Pi equals 22/7, diameter equals 2 * radius, and angle is in degrees.

If a unit circle's arc length is π/3,

(that is a circle with a radius of 1)

For a circle with a radius of 15, the arc length for the same angle would be

X15xπ/3

=5π

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A parametric equation for the curve 49=(x−2)2+(y+10)2 can be obtained by using the standard parameterization of a circle.

Let's first rearrange the given equation as follows:
(x-2)^2 + (y+10)² = 49

Dividing both sides by 49, we get:
[(x-2)²/49] + [(y+10)²/49] = 1

This suggests that the given equation represents an ellipse centered at (2,-10) with major and minor axes of length 2√(49) = 14 and 2√t(49) = 14, respectively.

To obtain a parametric equation for this ellipse, we can use the following parameterization:
x = 2 + 14*cos(t)
y = -10 + 14*sin(t)

Here, t is the parameter that ranges from 0 to 2*pi, and (x,y) gives the coordinates of points on the ellipse as t varies.

Note that this parametric equation satisfies the given equation for any value of t:
[(2+14*cos(t)-2)²/49] + [( -10+14*sin(t)+10)²/49] = 1

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Answer: the same as,

Step-by-step explanation:

Main effects is a term used to describe the impact an independent variable has on a dependent variable, this is usually averaged across any other independent variable.

Independent variables are variables that do not depend on other variables, they are variables that stand on their own.

Rounding to the nearest 10th, the surface area of the cylinder is approximately 219.8 square millimeters.

To find the surface area of a cylinder, you need to add the area of the top and bottom circles to the area of the curved side.

The formula for the surface area of a cylinder is:

SA = 2πr² + 2πrh

where r is the radius of the circular base, h is the height of the cylinder, and π (pi) is approximately equal to 3.14.

First, we need to find the radius of the circular base. The length of the cylinder is given as 10mm, which is twice the radius (since the diameter is equal to the length). So, the radius is:

r = length/2 = 10mm/2 = 5mm

The height of the cylinder is given as 2mm. Now we can substitute the values into the formula:

SA = 2πr² + 2πrh

SA = 2 x 3.14 x 5² + 2 x 3.14 x 5 x 2

SA = 157 + 62.8

SA = 219.8

Rounding to the nearest 10th, the surface area of the cylinder is approximately 219.8 square millimeters.

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The statement which is true about the function is that the function is negative for all real values of x where x < –3 or x > –1.

A function assigns the value of each element of one set to the other specific element of another set.

The graph of the function is,

\(f(x) = -(x +3)(x - 1)\)

It is positive, its value is above x-axis. For the function above, the solutions are,

\(x+3=0\\x=-3\\x-1=0\\x=1\)

The value of x is lies between,

\(-3 < x < 1\)

Thus, the statement which is true about the function is that the function is negative for all real values of x where x < –3 or x > –1.

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Answer:

I would but its confusing

Answer:

Come on man you are in high school and you can't answer this?

Step-by-step explanation:

To write 0.45 as a common fraction, we can use the fact that the decimal point separates the whole number part from the fractional part. So we have:

0.45 = 45/100

To simplify this fraction, we can divide both the numerator and the denominator by the greatest common factor, which is 5:

45/100 = (45 ÷ 5) / (100 ÷ 5) = 9/20

Therefore, 0.45 written as a common fraction, in its simplest form, is 9/20.

i. To find the component form of the vector AB, we subtract the coordinates of A from the coordinates of B:
AB = <52 - 12, 33 - 41> = <40, -8>
To find the magnitude of the vector AB, we use the formula:
|AB| = sqrt((40)^2 + (-8)^2) = sqrt(1600 + 64) = sqrt(1664) ≈ 40.79

ii. Similarly, we find the component form of AB:
AB = <12 - 8, 3 - 14> = <4, -11>
And the magnitude of AB:
|AB| = sqrt((4)^2 + (-11)^2) = sqrt(157) ≈ 12.53

iii. To find the component form of AB in 3D space, we subtract the coordinates of A from the coordinates of B:
AB = <8 - 9, 5 - (-2), 11 - 5> = <-1, 7, 6>
To find the magnitude of AB, we use the formula:
|AB| = sqrt((-1)^2 + (7)^2 + (6)^2) = sqrt(86) ≈ 9.27

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Given: Given that a citizen have 97 silver coins.

To find : Here we need to find that how many bronze coins would it take to equal this amount.

Solution: We know, 1 silver coin=10 bronze coin

So, 97 silver coin=10×97 bronze coin

=970 bronze coin

Therefore, 970 bronze coins would it take to equal this amount.

The answer is -6 :)

1. Add 40 to both sides of the equation.

-8x-40=8

-8x-40+40=8+40

2. Add the numbers.

-8x=48

3. Divide both sides of the equation by the same term.

-8x=48

\(\frac{-8x}{-8}\)=\(\frac{48}{-8}\)

4. Cancel terms that are in both the numerator and denominator and divide the numbers.

x=-6

hope this helped! :)

there are no restrictions other than 2 x + 1 > 81 on the radical inequality.

We are given the radical inequality as:

⁴√ 2 x + 1 > 3

We need to find the restriction on this inequality.

For this we will first put x on one side and other constant on the other side.

So, we get that:

2 x + 1 > 3⁴

2 x + 1 > 81

So, the restriction is not from the given options.

But, the value of 2 x + 1 should be greater than 81 for the inequality to be true.

Therefore, we get that, there are no restrictions other than 2 x + 1 > 81 on the radical inequality.

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Answer:

m<A = 32°

Step-by-step explanation:

When angles are vertical, it means they are equal to each other:

m<A = m<C

4x - 8 = 2x + 12

4x - 2x = 12 + 8

2x = 20

x = 20/2

x = 10

Solve for A:

4x - 8

4(10) - 8

40 - 8

32

Answer:

1/10

Step-by-step explanation:

If it can be 10 digits (0,1,2,3,4,5,6,7,8,9) in the tens place then the probability is 0.1 or 10% to get 0

Answer: 9, 144, 225, 10,000

Step-by-step explanation:

9=3x3

144=12x12

225=15x15

10,000=100x100

Ashley used 8/25 of the spool for her project.

To determine the fraction of the spool that Ashley used for her project, we need to multiply the fraction of the spool she had (4/5) by the fraction she used (2/5):

(4/5) * (2/5) = 8/25

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The heat loss rate (Q) in units of watts per square meter (W/\(m^2\)) for the given double-pane window is approximately 35.91 * A W/\(m^2\), where A is the area of the window in square meters.

Given:

Thickness of glass layers = 3mm

Thickness of air layer = 3mm

Outside temperature = -20°F = -28.9°C

Inside temperature = +72°F = 22.2°C

To calculate the heat loss rate, we will use the formula for heat conduction:

Q = (k * A * ΔT) / d

Where:

Q is the heat loss rate

k is the thermal conductivity

A is the area of the window

ΔT is the temperature difference between the inside and outside

d is the total thickness of the window

We need to convert the thicknesses of the glass and air layers to meters:

Thickness of glass layers = 3mm = 0.003m

Thickness of air layer = 3mm = 0.003m

We can now calculate the total thickness (d) of the window:

d = 2 * thickness of glass layers + thickness of air layer

d = 2 * 0.003m + 0.003m

d = 0.009m

Assuming the dimensions of the window are provided, let's consider:

Length = L meters

Width = W meters

The area of the window (A) is given by:

A = Length * Width

The thermal conductivity values in SI units are approximately:

k_glass ≈ 0.8 W/(m·K)

k_air ≈ 0.024 W/(m·K)

Now, let's calculate the temperature difference (ΔT) in Celsius:

ΔT = 22.2°C - (-28.9°C)

ΔT = 51.1°C

Substituting the values into the heat conduction formula:

Q = (k * A * ΔT) / d

Q = (0.8 W/(m·K) * A * 51.1°C) / 0.009 m

Simplifying further, we have:

Q = 44.89 * (0.8 * A) W

Therefore, the heat loss rate (Q) in units of watts per square meter (W/\(m^2\)) for the given double-pane window is approximately 35.91 * A W/\(m^2\), where A is the area of the window in square meters.

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