PLEASE HELP ME FOR BRAINLIEST WHAT IS R = TO?

Answer:

41°

Step-by-step explanation:

First note that m arc BC = m∠BZC

The reason is because a central angle of a circle is always congruent to its

intercepted arc.

Also m∠BAC is one-half m arc BC, as the measure of an inscribed angle is half the measure of its intercepted arc.

Hence, the calculation is given below:

m∠BZC = 82°

m arc BC = m∠BZC

m arc BC = 82°

m∠BAC = 1/2 × 82°

m∠BAC = 41°

It is important to note that

∠DCA ≅ ∠BAC because alternate interior angles are congruent.

So m∠DCA = m∠BAC.

Therefore, m∠DCA = 41°.

Answer:

\frac{2\cot \left(-240^{\circ \:}\right)\cos \left(-1050^{\circ \:}\right)-\cot ^2\left(50^{\circ \:}\right)}{\sec ^2\left(40^{\circ \:}\right)}

Step-by-step explanation:

ok

Answer:

25/18

Step-by-step explanation:

Additive inverse of a number X is the number which when is added to X =0

ex: additive inverse of 2 is -2 since 2 +(-2)=0

Multiplicative inverse of a number N is the number which when multiplied by N gives 1

ex: multiplicative inverse of 6/7 is 7/6

6/7*7/6=1

Ex of reciprocal is

5/9 & 9/5

7/6 & 6/7

Additive inverse of -5/6=5/6

Multiplicative inverse of 4/12 is 12/4

Reciprocal of 9/5 is 5/9

(5/6)*(12/4)*(5/9)=25/18

Answer:

(5/6)*(12/4)*(5/9)=25/18

Step-by-step explanation:

Answer:

(3,3)

Step-by-step explanation:

I used a graphing tool to graph the two equations. The lines intercept at (3,3). Therefore, (3,3) would be a solution to the system of equations.

Answer:

1 & 3 only

Step-by-step explanation:

Answer:

First question = 800 cm^3

Second question =120π

Step-by-step explanation:

The formula for volume is base x height x width.

The formula for area of cylinder is 2πrh+2πr^2 but it has no lid so

2πrh+πr^2.

Answer:

The second box plot best represents the data

Answer:

radius

Step-by-step explanation:

That "fixed distance" is the 'radius' of the circle.

Answer:

Step-by-step explanation:

Hello,

we can notice that

[tex](x+1)^2=x^2+2x+1[/tex]

so 1 is the missing constant term to get a perfect square

hope this helps

Answer:

1 i got same khan quiz

Step-by-step explanation:

Answer:

ΔABC ~ ΔDEC,  Angle Angle (AA postulate) rule of congruency

Step-by-step explanation:

Statements,                                                Reason

[tex]\overline{DE}\left | \right |\overline{AB}[/tex],                                                    Given

∠CDE ≅ ∠CAB,                                          Alternate interior angles

∠CED ≅ ∠CBA,                                          Alternate interior angles

ΔABC ~ ΔDEC,                                          Angle Angle   (AA postulate) rule of congruency

[tex]\overline{DE}\left | \right |\overline{AB}[/tex],                                                    Given

∠CDE ≅ ∠CAB,                                         Alternate interior angles

∠C ≅ ∠C,                                                   Reflexive property

ΔABC ~ ΔDEC,                                          Angle Angle   (AA postulate) rule of congruency.

Answer:

20 units

Step-by-step explanation:

The perimeter of a rectangle is

P = 2(l+w)

P = 2( 3x+2 + 4x)

Adding like terms

P = 2( 7x+2)

We know the perimeter is 74 units

74 = 2 ( 7x+2)

Divide by 2

74/2 = 2/2 (7x+2)

37 = 7x+2

Subtract 2 from each side

37-2 = 7x+2-2

35 = 7x

Divide by 7

35/7 = 7x/7

5 =x

We want to find the length RS = PQ = 4x

RS = 4x = 4*5 = 20

Answer:

(5a^2-4)*(25a^4+20a^2+16)

Step-by-step explanation:

Answer:

Its B, (5a^2-4)(25a^4+20a^2+16)

Step-by-step explanation:

Edge 2020

Answer:

a= 4[tex]\sqrt{6}[/tex]

b= 8[tex]\sqrt{2}[/tex]

c= 4[tex]\sqrt{2}[/tex]

Step-by-step explanation:

45-45-90 triangle

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

30-60-90 triangle

x - 2x - x[tex]\sqrt{3}[/tex]

Answer:

A

Step-by-step explanation:

The zeroes of the function are the x values when f(x) = 0 so we can write:

0 = x² + x - 30

0 = (x + 6)(x - 5) (To factor this we need to find 2 numbers that have a sum of 1 and a product of -30; these numbers are 6 and -5)

x + 6 = 0 or x - 5 = 0 (Use Zero Product Property)

x = -6, 5

Hey there! :)

Answer:

A. x = -6 and x = 5.

Step-by-step explanation:

Given:

f(x) = x² + x - 30

Factor the equation by finding two numbers that sum up to 1 and multiply into -30. We get:

-5, 6

Use these to express this quadratic function in factored form:

f(x) = (x - 5) (x + 6)

Set each factor equal to 0 to solve for the zeros of the equation:

0 = x - 5

x = 5

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

0 = x + 6

x = -6

Therefore, the correct answer is A. x = -6 and x = 5.

Answer:

125.6 cubed inches

Step-by-step explanation:

1. 3.14(2)^2(10) - Multiply 3.14 with 2 squared and 10.

2. First find out what is 2 squared, which is 4. Then, multiply 4 with 3.14, which is 12.56.

3. Now, multiply 12.56 with 10 or just move the decimal point one place to the right, which gives you 125.6 cubed inches.

Answer:

32

Step-by-step explanation:

960/384=2.5

80/?=2.5

80/2.5=32

HOPE I HELPED

BRAINLIEST PLSSSSSSSSSSS

           -ZYLYNN JADE

Answer:

32 pages of advertisement.

Step-by-step explanation:

Assuming the advertisements are published at the same rate as the average, the rate is 384/960 = 2/5

So out of 80 pages, we can expect

80*2/5 = 32 pages of advertisement.

Answer:

A. 41

Step-by-step explanation:

5a - b² + 2c(a-b)

Put a = 2, b = -3, and c = 4.

5(2) - (-3)² + 2(4)(2-(-3))

Evaluate.

10 - 9 + 2(4)(2+3)

10 - 9 + 8(5)

10 - 9 + 40

1 + 40

= 41

Answer:

[tex]41[/tex]

Step-by-step explanation:

Given that,

[tex]a = 2 \\ b = - 3 \\ c = 4[/tex]

Let's solve now,

[tex]5a - {b}^{2} + 2c(a - b) \\ 5 \times 2 - ( { - 3}^{2} ) + 2 \times 4(2 - ( - 3)) \\ 10 - ( - 3 \times - 3) + 8(2 + 3) \\ 10 - 9 + 8 \times 5 \\ 10 - 9 + 40 \\ 1 + 40 \\ = 41[/tex]

Answer:

m∠B = 107°

Step-by-step explanation:

Since we know that all angles in a triangle add up to 180°, we have

m∠D = 180 - (32 + 41) = 107°

Since we also know by the given picture that both triangles are congruent, we know that the m∠D is equal to m∠B, so m∠B = 107°

Answer:

6 Units squared.

Look at file for explanation.

Answer:

x = 3

Inverse matrix:

[tex]A^{-1} = \begin{pmatrix} \frac{1}{9} & \frac{2}{9} \\ \frac{1}{3} & -\frac{1}{3} \end{pmatrix} \quad[/tex]

Step-by-step explanation:

Determinant: ad - bc

a = 3, b = 2, c = 3, d = -1

3 * (-1) - (2 * x) = -9

-3 - 2x = -9

-2x = -6

x = 3

For matrix

[tex]A = \begin{pmatrix}a & b\\c & d\end{pmatrix} \quad[/tex]

the inverse is

[tex]A^{-1} = \dfrac{1}{ad - bc}\begin{pmatrix}d & -b \\-c & a\end{pmatrix}\quad[/tex]

Here we have: det = -9

a = 3, b = 2, c = 3, d = -1

Inverse matrix:

[tex]A^{-1} = \dfrac{1}{-9}\begin{pmatrix} -1 & -2 \\ -3 & 3 \end{pmatrix}\quad[/tex]

[tex]A^{-1} = \begin{pmatrix} \frac{-1}{-9} & \frac{-2}{-9} \\\frac{-3}{-9} & \frac{3}{-9}\end{pmatrix} \quad[/tex]

[tex]A^{-1} = \begin{pmatrix} \frac{1}{9} & \frac{2}{9} \\\frac{1}{3} & -\frac{1}{3}\end{pmatrix}\quad[/tex]

Answer:

As x increases, the rate of change of f(x) exceeds the rate of change of g(x).

Step-by-step explanation:

Hope this helps :)

Answer:

Option C

Step-by-step explanation:

We would have the find the diet that are not Acadia leaves. Since the giraffes eat 75 pounds per day, we can simply subtract the quantity of the Acadia leaves from the 75 to get the amount for the other leaves.

You can also use the equation given in the question to check your answer if you use Option C's equation.

Option C should be the correct answer.

Answer:

C

Step-by-step explanation:

edge 2020

Step-by-step explanation:

f(x) =  y

so f(4.999) = -5 when x = 4.999

f(5)= undefined because open circles means > or < with out the line underneath that means equal to

f(5.0001)= 7 when x=5.0001

f(9)= 7 when x=9 because the closed circle means ≥ or ≤ or equal to

Answer:

see attached

Answer:

7 packages

Step-by-step explanation:

Total number of saplings = 15 + 20 = 35

Number of saplings per package = 5

Number of packages = Total saplings ÷ Number of saplings per package

                                   = 35 ÷ 5

                                     = 7

Answer:

7

Step-by-step explanation:

Answer:

1/8

Step-by-step explanation:

There are 3 + 3 + 6 = 12 marbles in the bag and 12 * 12 = 144 ways to choose two marbles when replacing. There are 3 * 6 = 18 ways to choose a red marble and then a blue marble so the probability is 18 / 144 = 1 / 8.

Answer:

B) 128.3 square yards

Step-by-step explanation:

A = (n/360 deg)(pi)r^2

where n = central angle of sector.

A = (75/360)(3.14159)(14 yd)^2

A = 128.3 yd^2

Answer:

B. 128.3 yards

Step-by-step explanation:

Area of a Sector Formula: A = ∅/360πr²

Simply plug in our variables:

A = 75/360(π)(14)²

A = 5π/24(196

A = 128.3

Answer: 45

Step-by-step explanation:

Answer:

(3j) + (3m + 21)

Step-by-step explanation:

Answer:

the equation of the line in slope-intercept form is;

[tex]y=8x-26[/tex]

Step-by-step explanation:

First use the formula for the slope of the segment that joins the two given points:

[tex]slope=\frac{y_2-y_1}{x_2-x_1} =\frac{6-(-2)}{4-3}=\frac{8}{1} =8[/tex]

now that we have the slope, we can use the point-slope form of a line to find the line with slope 8 that passes through any of the given points, for example through (3, -2):

[tex]y-y_0=m\,(x-x_0)\\y-(-2)=8\,(x-3)\\y+2=8\,(x-3)\\y=8x-24-2\\y=8x-26[/tex]

Step-by-step explanation:

45X + 2000 = Y

Where X = Number of units

Y = Total Cost

The total cost of producing x units for which the fixed costs are $2500 and the cost per unit is $40 is  T(x) = 40x + 2500.

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, The total cost of producing x units for which the fixed costs are $2500 and the cost per unit is $40.

Assuming total cost to be T.

∴ T(x) = 40x + 2500.

learn more about numerical expressions here :

https://brainly.com/question/29199574

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