Error Analysis On a math test the students are guvena right triangle. One of the acute angles has a measure of 33°. One student saha tbe measure kf the other acute angle is 147°. What is the measure of the other acute triangle?

What error might the student have made?

For f(x) = 2x + 3 and g(x) = -x^2 + 1, The composite function defined by (f o g)(x) is equal to (f o g)(x) = - 2 x^2 + 5

As per the question statement, We are given f(x) = 2x + 3 and g(x)=x^2+1

and we are supposed to find the composite function defined by (f o g)(x)

(f o g)(x) = f(g(x))

(f o g)(x) = 2 (g(x)) + 3

(f o g)(x) = 2( -x^2 + 1 ) + 3

(f o g)(x) = - 2 x^2 + 5

Hence, For f(x) = 2x + 3 and g(x) = -x^2 + 1, The composite function defined by (f o g)(x) is equal to (f o g)(x) = - 2 x^2 + 5

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The percent increase in her salary resulted from her promotion is 6.67%.

The annual salary of Marisol as an engineer = $75000.

After, the promotion salary of Marisol as an engineer = $80000.

We have to find the increment in her salary after promotion in percentage.

Before finding the increment in percentage we find the total increment in dollar in her salary after promotion.

Total increment in dollar = Salary after Promotion − Salary before Promotion

Total increment in dollar = $80,000 − $75,000

Total increment in dollar = $5000

As we know that we can find the percentage by multiplying the required number by 100 because percentage is the ratio with 100.

So, the increment in salary after promotion in percentage.

% increment = (Total increment/Salary before) * 100

% increment [tex]= (\frac{5000}{75000})*100[/tex]

% increment = 0.0667 * 100

% increment = 6.67%

Now we see that percent increase in her salary resulted from her promotion is 6.67%.

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Answer:

Kareem takes longer to drive the 25 miles. Kadeen takes 10 minutes longer than Quinn.

Step-by-step explanation:

The formula for time is distance over speed (distance/speed)

Kadeem

distance/speed = 25/50 = 1/2 hour = 30 minutes

Quinn

distance/speed = 25/75 = 1/3 hour = 20 minutes

Answer: y = f (n 1)

Step-by-step explanation:

If we count interest rate = 5%

then if he earned 'y' amount in 1st year then in 2nd year he must earned

= y + 5% of y

== 1.05 y

here, y = f(n 1)

The area of the triangle in the image is 10 square units, thus, option C is the correct one.

For a triangle of height H and a base B, the area is given by:

A = H*B/2.

In the image we can see that the base of the triangle goes from (0, 0) to (5, 0), then the length of the base is 5 units.

While the height goes from (0, 0) to (0, 4), so the height is 4 units.

Then the area will be:

A = (4 units)*(5 units)/2 = (20 square units)/2 = 10 square units.

The area is 10 square units.

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Answer:

Yes, 7 x [tex]10^{-3}[/tex] in standard form is 0.007mm

8 x [tex]10^{-5}[/tex] in standard form is 0.00008 mm.  The mask will catch particles that are much smaller than 0.007 in diameter.

Step-by-step explanation:

Answer:

80 degrees

Step-by-step explanation:

one may note that y = 4 is a horizontal line, and a line perpendicular to a horizontal line will be a vertical one, Check the picture below.

==========================================================

Explanation:

The given translation rule is (x, y) → (x+8, y - 3) which says "shift 8 units right and 3 units down".

The inverse transformation will undo each to get "8 units left and 3 units up"

So the inverse is (x, y) → (x-8, y + 3)

Use this inverse to determine the preimage of point T'(2,-6)

[tex](\text{x},\text{y})\to(\text{x}-8,\text{y}+3)\\\\(2,-6)\to(2-8,-6+3)\\\\(2,-6)\to(-6,-3)\\\\[/tex]

Therefore, preimage point T is located at (-6,-3) which points us to answer choice B

If we were to apply the rule of "shift 8 units right and 3 units down" to T(-6,-3), you should arrive at T'(2,-6)

Answer: 60 inches in 5 feet

Step-by-step explanation:

5X12=60

Sunday-56 fluid ounces of water require to reach your goal.

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The given coordinate pair, (10, -7) is not on the x–axis or the y–axis, but it is in Quadrant IV

A coordinate pair specifies a point on the coordinate plane.

The coordinates of points on the x–axis have a y–coordinate of 0

Therefore, the coordinates of a point that is on the x–axis can be expressed as (x, 0)

Points that are on the y–axis have a x–coordinate of 0, which gives the coordinates of the points located on the y–axis as (0, y)

The coordinates of the given point is (10, -7), therefore, the point is neither on the x or y–axis, but in one of the four quadrants.

The coordinate of points in the first quadrant can be represented generally as (x, y)

Points in the second quadrant have the general form of (-x, y)

The points in the third quadrant can be expressed generally in the form (-x, -y)

The coordinates of points on the fourth quadrant are of the form, (x, -y)

The given point is (10, -7), therefore it is in the fourth quadrant or Quadrant IV

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The number line that correctly compares √24 and 4.256 is number line C.

A number line can be defined as a type of graph with a graduated straight line which contains both positive and negative numbers (numerical values) that are placed at equal intervals along its length.

This ultimately implies that, a number line can be used for the comparison of two or more numbers such as √24 and 4.256. Also, a number line typically decreases in numerical value towards the left and increases in numerical value towards the right.

Taking the square root of √24, we have:

√24 = 4.899

In this context, we can reasonably and logically deduce that 4.899 is greater than 4.256 (4.899 > 4.256) and would be placed at the right hand side of the number line and further from 4.899 as shown in number line C in the image attached below.

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The range of elevations is 166 meters.

Find the biggest observed value of a variable (the maximum) and subtract the smallest observed value to determine the range (the minimum). The data points between the distribution's two extremes are not taken into account by the range; just these two values are.

So as mentioned above, given to us are the lowest and highest values

So as the lowest value is 7 meters and the highest value is 173 .

Thus range is equal to 173-7

which is equal to 166.

Thus range is 166 meters.

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The roots of the function f(x) = [tex]x^2+2x-1[/tex] are

x = [tex]-1+\sqrt{2}[/tex]

x = [tex]-1-\sqrt{2}[/tex]

The function is given f(x)=  [tex]x^2+2x-1[/tex]

The roots of given function will be at f(x) = 0

Substitute the value in the equation

[tex]x^2+2x-1[/tex] =0

Here to find the roots of the function, we have to use the quadratic formula in the given function

Roots of the function = [tex]\frac{-b+/-\sqrt{b^2-4ac} }{2a}[/tex]

From the given function the values of

a = 1

b = 2

c = -1

Substitute the values in the quadratic formula and find the roots of the function

= [tex]\frac{-2+/-\sqrt{2^2-4(1)(-1)} }{2(1)}[/tex]

= [tex]\frac{-2+/-\sqrt{4+4} }{2}[/tex]

= [tex]\frac{-2+/-2\sqrt{2} }{2}[/tex]

The roots of the given functions are

x = [tex]-1+\sqrt{2}[/tex]

x = [tex]-1-\sqrt{2}[/tex]
Hence, the roots of the function f(x) = [tex]x^2+2x-1[/tex] are

x = [tex]-1+\sqrt{2}[/tex]

x = [tex]-1-\sqrt{2}[/tex]

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The inches of ribbon that Anais use to trim the curtains is 12 inches.

From the information, Anais bought 2 1/2 yards of ribbon and then he had 1 feet 6 inches of ribbon left after trimming some curtains.

It should be noted that 12 inches = 1 feet

Therefore, the inches that will be left will be:

= 2 1/2 - 1 6/12

= 2 1/2 - 1 1/2

= 1 feet

It should be noted that 1 feet = 12 inches.

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Answer: Alternate exterior angles

Step-by-step explanation:

Answer:

15 pounds

Step-by-step explanation:

Kevin is making potato casserole for a dinner party. He needs 2½ pounds of potatoes per guest. How many pounds of potatoes will he need for 6 guests?

15 pounds

6.5 pounds  

25 pounds

12.5 pounds

2.5lb × 6 guest = 15 pounds

Answer: 15 pounds of potatoes.

Step-by-step explanation:

Kevin will perform basic multiplication to find how many potatoes he needs for all of the guests. Since each person requires 2 1/2 pound of potatoes and there are a total of 6 guests, multiplying these two values will find the pounds of potatoes that are needed for all of the guests.

2 1/2 * 6 = 15 pounds of potatoes

Therefore, Kevin needs 15 pounds of potatoes to make potato casserole for everyone at the dinner party.

The total area of the sandbox is given by 6x^2-11x+5

Width of the sandbox = (x-1)

Length of the sandbox = (6x-5)

Rectangle area in geometry refers to the area that a rectangle occupies on a two-dimensional plane. A quadrilateral, a form of a two-dimensional object with four sides and four vertices, is what a rectangle is. The rectangle's four angles are all right angles or exactly 90 degrees. The rectangle's opposing sides are equal and parallel to one another.

The formula for the area of a rectangle:

Area of rectangle = Length*Width

Substituting the value in the formula we get:

Area of rectangle = (x-1)*(6x-5)

= 6x^2-5x-6x+5

= 6x^2-11x+5

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the formula for a function of the form y= a е⁻ˣ +b x with global minimum at (1,10)  is  y= 5е¹ ⁻ ˣ +5 x

We can use first and second derivative tests to determine all coefficients of the function described in statement so that the point given is an absolute minimum. The expressions for such tests are introduced below:

First Derivative Test

-a .е⁻ˣ +b = 0   (1)

b=a .е⁻ˣ

Second Derivative Test

y''= a . .е⁻ˣ  (2)

Where y'' >0

If we know that ( x,y) = 9 1,10) , then we have the following system:

10 = a е⁻¹ +b (3)

b= a е⁻¹  (4)

y'' = a е⁻¹  (5)

By (4) in (3):

10= 2aе⁻¹

a=10/2е⁻¹

a= 5е

By (5) we prove that y''>0, and we get the value of  by (4):

b=5

Thus, the formula for a function of the form y= a е⁻ˣ +b x with global minimum at (1,10)  is . y= 5е¹ ⁻ ˣ +5 x

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Answer:

D

Step-by-step explanation:

the sum of the 3 angles in Δ DEF = 180° , that is

∠ D + 90° + 35° = 180°

∠ D + 125° = 180° ( subtract 125° from both sides )

∠ D = 55°

------------------------

using the tangent and cosine ratios in the right triangle

tan35° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{DE}{EF}[/tex] = [tex]\frac{DE}{12}[/tex] ( multiply both sides by 12 )

12 × tan35° = DE , then

DE ≈ 8.40 ( to 2 dec. places )

--------------------------

cos35° = [tex]\frac{adjacent}{hypotenuse}[/tex] = [tex]\frac{EF}{DF}[/tex] = [tex]\frac{12}{DF}[/tex] ( multiply both sides by DF )

DF × cos35° = 12 ( divide both sides by cos35° )

DF = [tex]\frac{12}{cos35}[/tex] ≈ 14.65 ( to 2 dec. places )

An equivalent expression to given expression is 35(3 + m)

In this question, we have been given an expression 105 + 35m

We need to write an equivalent expression of given expression.

To find an equivalent expression we factorize given expression using the distributive property and the greatest common factor.

A common number for 35 and 105 is 35.

105 = 35 × 3

So, we can write given expression as,

105 + 35m

= (35 × 3) + 35m

= 35(3 + m)

Therefore, an equivalent expression to given expression is 35(3 + m)

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In the coordinate plane shown we can say that the y-coordinate of point A is 3.

Let us now take the statement one by one and try to find out if they are true or false.

A. True. The y-coordinate for A is 3

B. False. Point D has x-coordinate of 5 and E has 6

C. True The x-coordinate for F is 7

D. True The ordered pair for point G is (8,6)

E. False. Point H names the ordered pair (9,10).

F. false point B is √34 units away from origin

G. True.

The coordinate plane is a two-dimensional surface created by combining two number lines. A single horizontal number line makes up the x-axis. The name of the vertical number line, which is the other number line, is the y-axis. The intersection of the two axes is the origin. The graphing of points, lines, and other objects can be done using the coordinate plane.

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Answer: No, this is not a function.

Functions exist when there are a unique set of x-values and each can match with a y-value. There cannot be a repeating x-value because this creates a discontinuity in the graph. You can have as many repeating y-values as you’d like as long as they each have a unique x-value and are not duplicate plot points.

Since x = 7 repeats in the domain of x-values, this cannot be a function.

To withdraw money from the automated teller machine the numeric pattern required to complete the personal ID numbers is 2, 13, 24, 35,46,57,68.

As given in the question,

Using automated teller machine customers at the bank withdraw money

Numeric pattern given for the personal ID numbers is

2, 13, 24, 35

First term 'a'= 2

Common difference between consecutive terms are same

'd'=13 -2                                                  

   =11

It is an arithmetic progression series

nth term = a+ (n-1)d

5th term = 2 +(5-1)11

               =46

6th term =2+(6 -1)11

              =57

7th term= 2+ (7-1)11

             = 68

Therefore, to withdraw money from the automated teller machine the numeric pattern required to complete the personal ID numbers is 2, 13, 24, 35,46,57,68.

The complete question is:

The customers at the bank would like to withdraw money from the automated teller machine. Help them enter their personal ID numbers by completing the numeric patterns. 2, 13, 24, 35, ___, ___, ____.

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Answer: -3 and -4

Step-by-step explanation:

The sum of -3 + -4 = -7

The product of -3 x -4 = 12 (a negative times a negative equals a positive)

Answer:

0.31

Step-by-step explanation:

√13.7/3.05^2 + 2.6

= 3.7/ 9.3 + 2.6

= 3.7/ 11.9

= 0.31

a. The complete table for the ordered pairs that are solutions to y = x³ - 4 is

x             y

-1            -5

0            -4

1             -3

2            4

b. The graph of the equation is shown below

From the question, we are to complete the given table of ordered pairs that are solutions to the given equation.

The given equation is

y = x³ - 4

Now, we will determine the values of y for the given values of x

When x = -1

y = x³ - 4

y = (-1)³ - 4

y = -1 - 4

y = -5

(-1, -5)

When x = 0

y = x³ - 4

y = (0)³ - 4

y = 0 - 4

y = -4

(0, -4)

When x = 1

y = x³ - 4

y = (1)³ - 4

y = 1 - 4

y = -3

(1, -3)

When x = 2

y = x³ - 4

y = (2)³ - 4

y = 8 - 4

y = 4

(2, 4)

Thus,

The table is

x             y

-1            -5

0            -4

1             -3

2            4

The graph is shown below

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