help me with my homework please​. PLEASEEEEE!

Answer:

your answer will be BDC=105

Step-by-step explanation:

happy to help have a nice day ^_^

Answer:

105°

Step-by-step explanation:

angles on a straight line add up to 180°

on that case u subtract 75°from 180°

180°-75°=105°

well, the tax amount is simple, it was $71 and it went up to $86.45, that's a 15.45 difference, so that IS the tax amount.

now, if we take 71(origin amount) to be the 100%, what's 15.45 off of it in percentage?

\(\begin{array}{ccll} amount&\%\\ \cline{1-2} 71 & 100\\ 15.45& x \end{array} \implies \cfrac{71}{15.45}~~=~~\cfrac{100}{x} \\\\\\ 71x=1545\implies x=\cfrac{1545}{71}\implies x\approx 21.76\)

Answer:

Option D : 22°

Step-by-step explanation:

The relationship between angle C and the two legs of the right triangle ie AB and BC is

\(\tan C = \dfrac{AB}{BC}\\\\\text{We have AB = 2, AC = 5}\\\\\rightarrow \tan C = \dfrac[2}{5}= 0.4\\\\m\angle C = \tan^{-1}(0.4) = 21.8^\circ\)

Rounded to the nearest degree this would be 22°

Option D

Answer:

D

Step-by-step explanation:

using either the sine or cosine or tangent ratios in the right triangle , that is

sin C = \(\frac{opposite}{hypotenuse}\) = \(\frac{AB}{AC}\) = \(\frac{2}{\sqrt{29} }\) , then

∠ C = \(sin^{-1}\) ( \(\frac{2}{\sqrt{29} }\) ) ≈ 22° ( to the nearest degree )

or

cos C = \(\frac{adjacent}{hypotenuse}\) = \(\frac{BC}{AC}\) = \(\frac{5}{\sqrt{29} }\) , then

∠ C = \(cos^{-1}\) ( \(\frac{5}{\sqrt{29} }\) ) ≈ 22° ( to the nearest degree )

or

tan C = \(\frac{opposite}{adjacent}\) = \(\frac{AB}{BC}\) = \(\frac{2}{5}\) , then

∠ C = \(tan^{-1}\) ( \(\frac{2}{5}\) ) ≈ 22° ( to the nearest degree )

The number of turns the wheel makes is 1.93 ≈ 2.

What is Turns?

This is referred to as a cycle. It is a unit of plane angle measurement that is equivalent to 2π radians, 360 degrees, or 400 gradians.

formular for calculating Turns:

Turns =         Lenght

              Circumference

Circumference of a circle, C= πD

Where,

Diameter=D

            π =22/7

Calculating Circumference;

C= 22  * 66

            7

    =207.4

From the question:

D= 66cm

L  =400m

Calculating Turns:

Turns =  Lenght

              Circumference

          =   400m

               207.4

      Turns =1.93

Turns =1.93≈ 2

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The X-Cordinate is 4

Answer:

-7

Step-by-step explanation:

well, y-intercept is value of y when x = 0.

from the problem, we already have the answer, it is -7

but more detailed way is

m = -3

\( \frac{y - ( - 7)}{x - 0} = - 3 \\ y - ( - 7) = - 3x \\ y = - 3x - 7 \\ \)

y-intercept is value of y when x = 0

\(y = - 3(0) - 7 \\ y = - 7\)

Answer:

36.143

Step-by-step explanation:

143/1000=0.143

36+0.143=36.143

a) The distance from point P to the pole  is: 6.2 m

b) The height of the Pole is: 6.2 m

The triangle attached shows us the triangle formed as a result of the given word problem about angle of elevation and distance and height.

Now, we are given that:

The angle of elevation of the top of the pole =  45°

Angle of elevation of the top of the pole = 58°.

|PQ|= 10m

a) PR is distance from point P to the pole and using trigonometric ratios, gives us:

PR/sin 58 = 10/sin(180 - 58 - 45)

PR/sin 58 = 10/sin 77

PR = (10 * sin 58)/sin 77

PR = 8.7 m

b) P O can be calculated with trigonometric ratios as:

P O = PR * cos 45

P O = 8.7 * 0.7071

P O = 6.2 m

Now, the two sides of the isosceles triangle formed are equal and as such:

R O = P O

Thus, height of pole R O = 6.2 m

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Integer - 19 (1/8)inch board would be left after cutting from 34(1/4) inch board

What is an Integer ?

Zero, a positive natural number, or a negative integer denoted by a minus sign are all examples of integers. The inverse additives of the equivalent positive numbers are the negative numbers. When expressed in mathematical terms,

34 (1/4) inch board = 137/4 ----(1)

Cut piece = 14 3/4 = 59/4 ----(2)

saw cut 3/8 = 3/8 --------(3)

To calculate the board which is left after cutting will be

                                                          = 137 / 4 - 59 / 4 - 3/8

                                                          = 137 - 59 / 4 - 3 / 8

                                                          = 39 / 2 - 3 / 8

                                                          = 312 - 6 / 8

                                                          = 306 / 16

                                                          = 153 / 8

or,                                                       = 19 (1/8)inch

Hence, 19(1/8)inch board will be left after cutting

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Answer:

-560 is the answer

Step-by-step explanation:

658 - (-560 )= 98

Answer:

Hello!!! erz here ^^

Step-by-step explanation:

658 - 560 = 98

Hope this helps!! :D

Hey there!

a/6 > -4

= -18/6 > -4

= -3 > -4

Thus, this statement is most likely TRUE because -3 is GREATER than -4

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Answer:

no

Step-by-step explanation:

The total surface area of the figure will be 1968.85 square meters.

To determine  the surface area of the figure, we need to find the area of each face and then add them together.

Surface Area of the rectangular prism = 2(lb + bh + hl)

= 2(16 × 9.5) + 2(9.5 × 14) + 2(16 × 14)

= 2(152 + 133 + 224) = 2(509)

= 1018 m²

Next, we need to find the area of the triangular prism on the front with dimensions 11 m, 12.7 m, and 14 m:

Surface Area of the triangular prism;

= (11 × 14) + 2(0.5 × 11 × 12.7) + 2(0.5 × 12.7 × 14)

= (154 + 350.35 + 445.5)

= 950.85 m²

Therefore, the total surface area of the figure will be;

Total Surface Area = Surface Area of rectangular prism + Surface Area of triangular prism

= 1018 m² + 950.85 m²

= 1968.85 m²

So, the surface area of the figure is 1968.85 square meters.

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The matching of items and their corresponding descriptions are 1. Domain, 2.Output, 3. Input, 4. Relation, 5. Function, and 6. Range.

1. Domain - the first element of a relation or function; also known as the input value.

3. Input - the x-value of a function.

6. Range - the second element of a relation or function; also known as the output value.

4. Relation - any set of ordered pairs (x, y) that are able to be graphed on a coordinate plane.

2. Output - a relation in which every input value has exactly one output value.

5. Function - the y-value of a function.

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Given data:

The total numbers of cows are n=( 2^2)^4 × 2^0 .

The given expression can be written as,

Thus, the total numbers of cows are 2^8.

Answer:

where is the triangle?

Step-by-step explanation:

Step-by-step explanation:

15/4 + (−4/13) can be rewritten as 15/4-4/13.

15/4-4/13

15 x13

4 x13

195/52

4 x4

13 x4

16/52

195/52-16/52=179/52 or 3 23/52

hope it helps!

Answer:

453936

que tenga un lindo día

Answer:

453936

Step-by-step explanation:

Hope this helps!

Answer:

113.1

Step-by-step explanation:

d= 2r

r = 6

area = \(\pi r^{2}\) = 36 x \(\pi\) = 113.09

Answer:

The y-intercept is y = -4.

The x-intercepts are \(x = 4\) and \(x = -\frac{1}{2}\)

The vertex is \((\frac{7}{4},-\frac{81}{8})\)

Step-by-step explanation:

Quadratic equation:

Has the following format:

\(y = ax^2 + bx + c\)

The y-intercept is c.

Finding the x-intercepts:

Given a second order polynomial expressed by the following equation:

\(ax^{2} + bx + c, a\neq0\).

This polynomial has roots \(x_{1}, x_{2}\) such that \(ax^{2} + bx + c = a(x - x_{1})*(x - x_{2})\), given by the following formulas:

\(x_{1} = \frac{-b + \sqrt{\Delta}}{2*a}\)

\(x_{2} = \frac{-b - \sqrt{\Delta}}{2*a}\)

\(\Delta = b^{2} - 4ac\)

Vertex:

Suppose we have a quadratic function in the following format:

\(f(x) = ax^{2} + bx + c\)

It's vertex is the point \((x_{v}, y_{v})\)

In which

\(x_{v} = -\frac{b}{2a}\)

\(y_{v} = -\frac{\Delta}{4a}\)

Where

\(\Delta = b^2-4ac\)

In this question:

The quadratic equation is \(2x^2 - 7x - 4\), which has \(a = 2, b = -7, c = -4\). This means that the y-intercept is y = -4.

x-intercepts:

\(\Delta = (-7)^2-4(2)(-4) = 81\)

\(x_{1} = \frac{-(-7) + \sqrt{81}}{2*2} = 4\)

\(x_{2} = \frac{-(-7) - \sqrt{81}}{2*2} = -\frac{1}{2}\)

The x-intercepts are \(x = 4\) and \(x = -\frac{1}{2}\)

Vertex:

\(x_{v} = -\frac{(-7)}{2*2} = \frac{7}{4}\)

\(y_{v} = -\frac{81}{4(2)} = -\frac{81}{8}\)

The vertex is \((\frac{7}{4},-\frac{81}{8})\)

Answer:

-6/5

Step-by-step explanation:

3/2x - 5/4y = 15

-5/4y = -3/2x + 15

multiply each side by (-4/5)

(-4/5)(-5/4y) = (-4/5)(-3/2x + 15)

y = -6/5x - 12

rate of change: -6/5

Answer:

0.58 = 58% probability she passes both courses

Step-by-step explanation:

We have two events, A and B.

\(P(A \cup B) = P(A) + P(B) - P(A \cap B)\)

In which:

\(P(A \cup B)\) is the probability of at least one of these events happening.

P(A) is the probability of A happening.

P(B) is the probability of B happening.

\(P(A \cap B)\) is the probability of both happening.

In this question:

Event A: Passes the first course.

Event B: Passes the second course.

The probability she passes the first course is 0.7.

This means that \(P(A) = 0.7\)

The probability she passes the second course is 0.67.

This means that \(P(B) = 0.67\)

The probability she passes at least one of the courses is 0.79.

This means that \(P(A \cup B) = 0.79\)

What is the probability she passes both courses

\(P(A \cup B) = P(A) + P(B) - P(A \cap B)\)

\(0.79 = 0.70 + 0.67 - P(A \cap B)\)

\(P(A \cap B) = 0.58\)

0.58 = 58% probability she passes both courses

Answer:

Tripling the price means it increased by 200% so the markup is 200% (pls give brainlest please!)

i don't have any idea but ok JQJAJDJDJKSBA

Answer:

C: EAF Is the correct answer

a. The secant slope through (-2,4) and (0,0) is -2.

b. The secant slope through (-1.5,2.25) and (-0.5,0.25) is -2.

The estimated slope of the tangent line to f(x) = x^2 at x = -1 is approximately -2.

To estimate the slope of the tangent line to the function f(x) = x^2 at x = -1, we can find the slopes of the secant lines through different pairs of points.

a. (-2,4) and (0,0):

The coordinates of the two points are (-2, 4) and (0, 0). We can calculate the slope of the secant line passing through these points using the formula:

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

Plugging in the values, we get:

msec = (0 - 4) / (0 - (-2))

= -4 / 2

= -2

So, the slope of the secant line passing through (-2, 4) and (0, 0) is -2.

b. (-1.5, 2.25) and (-0.5, 0.25):

The coordinates of the two points are (-1.5, 2.25) and (-0.5, 0.25). Using the slope formula, we can calculate the slope of the secant line passing through these points:

msec = (0.25 - 2.25) / (-0.5 - (-1.5))

= (-2) / (1)

= -2

So, the slope of the secant line passing through (-1.5, 2.25) and (-0.5, 0.25) is -2.

By finding the slopes of the secant lines, we have estimated the rate of change of the function f(x) = x^2 at x = -1. The slope of the tangent line at this point will be very close to these secant slopes, particularly as the two points used to calculate the secant lines get closer together.

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The expression 10m‾‾√ is an expanded form of the mathematical term ln10.

Answer:

See below

Step-by-step explanation:

We can estimate the dividend and divisor as follows:

Estimate is 8000