Tobin is solving the equation 3 (x minus 1.25) = 11.25. His work is shown below.

3 (x minus 1.25) = 11.25. 3 x minus 3.75 = 11.25. 3 x minus 3.75 + 3.75 = 11.25 + 3.75. 3 x = 15. 3 x times 3 = 45 times 3. x = 135.

What mistake did Tobin make?

Answer:

-16

Step-by-step explanation:

Answer:

all of them

Step-by-step explanation:

Answer:

I need brainliest on my other account.!!!!!

Step-by-step explanation:

The value of cos (x + pi) is -✓3/2, based on the stated information and known trigonometric values.

As per the known fact, the value of x wil be 30° as it is the specific value whose cosine or cos is ✓3/2. Now, we also know that π represents 180°. Also, the formula for cos (a + b) is cos A cos B - sin A sin B.

So, cos (x + pi) will be -

cos x cos pi - sin x sin pi

Keeping the values and solving -

cos (x + pi) = cos 30 cos 180 - sin 30 sin 180

cos (x + pi) = (✓3/2 × -1) - (1/2 × 0)

cos (x + pi) = -✓3/2

Hence, the value of cos (x + pi) is -✓3/2.

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The distance between two points is D and E, E and F, C and D, A and B, B and C, when the points are arranged in increasing order.

Discover the distance formula, a Pythagorean theorem application, to determine the separation between two places. To get the separation between any two points, we can rewrite the Pythagorean theorem as \(d= \sqrt{x_{2} -x_{1} + y_{2} -y_{1} }\)

In geometry, distances are always positive unless the points are exactly adjacent. The distance between A and B is equal to the distance between B and A. We consider two points A(a,b) and B to get the formula for the distance between two points in the plane (c,d).

\(d= \sqrt{x_{2} -x_{1} + y_{2} -y_{1} }\)

The distance is provided in the following equation as

A and B are \(\sqrt{39}\) miles apart.

B and C are \(\sqrt{41}\) miles apart.

C and D are five miles apart.

D and E are four miles apart.

E and F are \(\sqrt{17}\) miles apart.

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Answer:

Step-by-step explanation:

you have to count the distance between each point then list them from smallest to greatest. The other answers on here made it more convoluted than necessary.

Answer:

give the other chick brainliest!!

Step-by-step explanation:

Answer: The sum of the exterior angles of any polygon is 360 degrees.

The measure of one exterior angle of a regular polygon with n sides is given by the formula:

360/n

For a polygon with 26 sides, the measure of one exterior angle is:

360/26 = 13.8 degrees (rounded to one decimal place)

Step-by-step explanation:

Answer:

325.6g

Step-by-step explanation:

weight of phone + weight of case

= 310 + 15.6

= 325.6g

mark as brainliest pls

Answer:

(--2, 6)

Step-by-step explanation:

Plugging -2 into the equation, you get -2(-2)^2-4(-2)-10 which is 6. This makes the coordinate (-2,6)

\( \LARGE{ \underline{ \tt{Required \: answer:}}}\)

It was started by a scientist Ivan Pavlov who was a russian physiologist who started the Behaviorist movement in psychology.

During the experiment:

Our Answer is:

⛱️ \( \large{ \blue{ \bf{FadedElla}}}\)

Let:

Points of the parallelogram

We can verify that it is a parallelogram if it satisfies the following conditions:

Two pairs of opposite sides are parallel.

Two pairs of opposite sides are equal in length.

Two pairs of opposite angles are equal in measure.

The diagonals bisect each other.

One pair of opposite sides is parallel and equal in length.

Adjacent angles are supplementary.

In order to make things a little quicker we can verify the following:

And:

Finding the Inverse of a Polynomial Function by Restricting the Domain

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Answer:

the reminder is 5 and the quotient is 2x+4

Answer:

5.89E+12

Step-by-step explanation:

Answer:

Step-by-step explanation:

To do this we will first use the slope formula to find the slope of the line. Given 2 points, you can't do anything else BUT find the slope. Always start there. The slope formula is:

\(m=\frac{y_2-y_1}{x_2-x_1}\)

Plugging in our values from the points where y2 is 7, y1 is 3, x2 is -4 and x1 is -2:

\(m=\frac{7-3}{-4-(-2)}=\frac{7-3}{-4+2}=\frac{4}{-2}=-2\)

So the slope is -2. Now we will pick either point and use the x and y coordinates to fill in the point-slope form of a line, which is:

\(y-y_1=m(x-x_1)\)

where y1 and x1 are the coordinates from the point we pick, and m is the slope we just solved for. It doesn't matter which point you pick to use as your x and y coordinates; either one will give you the exact same equation...PROMISE!!

I chose (-2, 3), no reason in particular. x1 is -2 and y1 is 3:

\(y-3=-2(x-(-2))\) which simplifies a bit to

y - 3 = -2(x + 2) and a bit more to

y - 3 = -2x - 4 and even more to

y = -2x - 4 + 3 and finally to our final line in slope-intercept form:

y = -2x - 1

Choice a.

The interval of convergence for the given power series is (2, 8).

To find the interval of convergence for the given power series. We have the power series:

∑(n=2 to ∞) ((x-5)ⁿ)/(3ⁿ)

To find the interval of convergence, we'll use the Ratio Test. For the Ratio Test, we need to compute the limit:

L = lim (n → ∞) |(a_(n+1)/a_n)|

For our series, a_n = ((x-5)ⁿ)/(3ⁿ). Therefore, a_(n+1) = ((x-5)(n+1))/(3(n+1)). Now, let's compute the ratio:

|(a_(n+1)/a_n)| = |(((x-5)(n+1))/(3(n+1))) / (((x-5)ⁿ)/(3ⁿ))|

Simplify the expression:

|(a_(n+1)/a_n)| = |(x-5)/3|

The series converges if L < 1. So we have:

|(x-5)/3| < 1

Now, we'll solve for x to find the interval of convergence:

-1 < (x-5)/3 < 1

Multiply each term by 3:

-3 < x-5 < 3

Add 5 to each term:

2 < x < 8

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__________________________________________________________

\(\text{\textbf{Hello!} In this question, we are trying to figure out the \underline{equation} of the line}\\\text{with the given information.}\)
__________________________________________________________

\(\textbf{Explanation:}\\\quad{}\\\text{In the question, we were given our \emph{slope} (gradient) and a \emph{point}. This will help}\\\text{us solve our problem.}\quad{}\\\\\text{Slope: 2 }\\\\\text{Point: (1, 4)}\\\quad{}\\\text{In order to find the equation, we will be using the \underline{point-slope formula:}}\\\quad{}\\y - y1 = m(x - x1)\\\quad{}\\\text{With this equation, we would plug in our given values to its}\\\text{correct variable and solve.}\)
__________________________________________________________

\(\textbf{Solve:}\\\\\text{Use the point-slope formula to solve.}\\\\y - y1 = m(x - x1)\quad{}\\\\\text{Plug in 2 to m, 1 to x1, 4 to y1 and then solve.}\\\\y - 4 = 2(x - 1)\\\\\text{Use the \underline{distributive property} to distribute the 2.}\\\\y - 4 = 2x - 2\\\\\text{Add 4 to both sides to cancel the 4 on the left and move the remainder}\\\text{to the right side of the equal sign.}\\\\y = 2x + 2\\\\\text{Since we can't simplify any further, our answer is: \fbox{y = 2x + 2}}\)
__________________________________________________________

\(\textbf{Answer:}\\\\\text{Therefore, the equation of the line (our final answer) would be \fbox{y = 2x + 2}}\)
__________________________________________________________

Answer:

x=16 degrees

Step-by-step explanation:

Answer:

16

Step-by-step explanation:

85 - 21 = 64

64/4 = 16

this is assuming they are same length

Answer:

Please see details below

Step-by-step explanation:

Notice that since you have drawn mid-segments for all sides of the triangles, the three smaller triangles generated at the vertices, are all similar triangles to the large one (XYW).

Let's look at what happens with the smaller triangles:

Triangle QXR is similar to XYW, since the side QR has to be parallel to the big side WY. By construction, the side XQ is half of the side XW, therefore all sides of the smaller triangle *QXR formed must maintain the same proportion. Then side QR is half of side WY which makes side WY = 2 (2.93 cm) = 5.86 cm.

The same reasoning is valid when we compare triangle RYS with the larger triangle XYW: side RS of the small triangle is half of side XW of the large triangle, That is: XW = 2 (2.04 cm) = 4.08 cm

Similarly, small triangle SWQ is similar to XYW, and the side QS has to be half of side XY, therefore side XY = 2 (2.28 cm) = 4.56 cm

Then, the perimeter of triangle XYW is:

XY + YW + XW= 4.56 cm + 5.86 cm + 4.08 cm = 14.5 cm

Answer:

Step-by-step explanation:

y = - 4 sin ( 1.6x - π/360) - 2

Answer:18.6 is the answer

Step-by-step explanation:

In this experiment, the independent variable is the cost of meals. The researchers are manipulating or varying the cost of meals to observe its effect on the frequency of burping.

The researchers should present the data as a scatter plot or a line graph. This type of graph allows for the visualization of the relationship between the independent variable (cost of meals) and the dependent variable (frequency of burping). The x-axis would represent the cost of meals, and the y-axis would represent the frequency of burping. Each data point would correspond to a specific meal, with the x-coordinate representing the cost and the y-coordinate representing the frequency of burping observed during that meal. By plotting the data points and observing the overall trend, the researchers can analyze whether there is a correlation between the cost of meals and the frequency of burping.

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Subtraction is a mathematical operation that reflects the removal of things from a collection. The total change in distance from the surface is 30.7 feet.

Subtraction is a mathematical operation that reflects the removal of things from a collection. The negative symbol represents subtraction.

Given that the group goes 54.37 feet below in the beginning and then goes 23.67 feet above. Therefore, the net change or the total change in distance from the surface is,

Total change in distance = 54.37 feet - 23.67 feet

                                          = 30.7 feet

Hence, the total change in distance from the surface is 30.7 feet.

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Answer:

D. x = 12

I hope this helps!

Answer:

See Below.

Step-by-step explanation:

Remember that:

Where c is the longest side, and a and b are the two remaining sides.

\(4^2\text{ is }\textbf{ less than (or $<$) } 3^2+3^2\)

\(\text{Therefore, }\Delta JKL \text{ is }\textbf{an acute triangle.}\)

(16 is less than 9 + 9 or 18.)

\(5^2\text{ is } \textbf{equal to (or $=$) } 3^2+4^2\)

\(\text{Applying the same method, $\Delta ABC$ is }\textbf{ a right triangle.}\)

(25 is equal to 9 + 16 = 25.)

Answer:

less then

acute

equal to

right

Step-by-step explanation:

Answer:

Angle k measures 60 degrees!!!

Answer:-27

Step-by-step explanation:

-3 x -3 = 9

9 x -3 =27

Answer:

Hey mate.....

Step-by-step explanation:

This is ur answer.....

Hope it helps!

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Answer:

REFER TO ATTACHMENT