multiple choice! please help me

Answer:

Step-by-step explanation:

The square root of a negative number is an irrational value

Answer:

✓-1 is an error but according to the rule of mathematics -1 is still the same thing as 0

✓0 is = 0

Answer:

m = 8

Step-by-step explanation:

[tex]\frac{m}{12}[/tex] = [tex]\frac{10}{5+10}[/tex]

15m = 120

m = 8

Use csc (90) = 10/m.

So, m = 10/csc(90).

m = 8.93997

Answer: m = 8

Answer:

True

Step-by-step explanation:

Brainliest?

Answer:

202m

Step-by-step explanation:

Use pythagoream theorum to find the hypotenuse. So [tex]a^{2} +b^{2} =c^{2}[/tex], where the height (40m)=a and the anchor length (198m)=b. That leaves us with  [tex]40^{2} +198^{2} =c^{2}[/tex], doing the math out for that we get 40,804=[tex]c^{2}[/tex], taking the square root of 40,804 we get our answer of 202m

Answer:

Area = 136

Step-by-step explanation:

Rectangle on the bottom

Length = 16

Width = 7

Area = L * W

Area = 16 * 7

Area = 112

Triangle on Top

Height = 13 - 7 = 6

Length = 16 - 8 = 8

In a right triangle the area = the product of the 2 shortest sides divided by 2

Area = 1/2 * Length * Height

Area = 1/2 * 8 * 6

Area = 1/2 48

Area = 24

Total Area = 112 + 24 = 136

Answer:

A parabola can be represented by the equation x2 = -20y. ... (0,-2). The directrix of the parabola is represented by y = 2. ... A parabola, with its vertex at (0,0), has a focus on the negative part of the y-axis. ... The directrix will cross through the positive part of the y-axis. ... Which graph represents the equation y2 = -4x? A ...

Step-by-step explanation:

yeiii

Answer:

THE ANSWER IS B YALL I GUESSED AND GOT IT RIGHT

Step-by-step explanation:

HAVE A NICE DAY :)

The sum of given numbers is 2+√3 +i(-1+√3)

How to add complex numbers?

A complex number is a kind of number which has two parts:

The real part consists of real numbers whereas the imaginary part consists of numbers like i (iota=√-1)and its multiples.

When we add complex numbers, we add the real part and the imaginary part separately.

In this question:

Therefore, we get a new complex number that is √3+2+i(√3-1).

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Answer:

1/3*1/6 is ur answer.

1/18

Answer:

24

Step-by-step explanation:

thats right

The solution is d₁ = 24

The product of the elements on the main diagonal of the matrix is 24

What is multiplication of matrices?

The product of two matrices A and B is defined if the number of columns of A is equal to the number of rows of B. The first matrix must have the same number of columns as the second matrix has rows. The number of rows of the resulting matrix equals the number of rows of the first matrix, and the number of columns of the resulting matrix equals the number of columns of the second matrix

Given data ,

Let the matrix be represented as A

Now , the value of A is

[tex]A = \left[\begin{array}{ccc}3 &2 \\ 5 &8 \\\end{array}\right][/tex]

Now , on simplifying the matrix A

The main diagonal of the matrix is having the elements ( a₁₁ ) and ( a₂₂ )

So , the product of the elements in the main diagonal is

a₁₁ = 3

a₂₂ = 8

And , the equation will be

d₁ = ( a₁₁ ) x ( a₂₂ )

Substituting the values in the equation , we get

d₁ = 3 x 8

d₁ = 24

Therefore , the value of d₁ is 24

Hence , the product of the diagonal elements of matrix is 24

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Answer:

C

Step-by-step explanation:

Answer:

a^2 + b^2 = c^2

Step-by-step explanation:

A squared plus b squared equals c squared is the pythagorean theorem. You can plug in the numbers to get the answer

Answer:

16units

Step-by-step explanation:

Given data

The expression for the volume of a cone is given as

v=1/3πr^2h

v= 3π

r= 12

h=???

Substitute

3π= 1/3*π*12^2*h

3= 1/3*144*h

3= 144h/3

cross multiply

3*3= 144h

9= 144h

h= 144/9

h=16 units

Hence the heeight is 16units

It is 300

Step-by-step explanation:

6*5 multiply them   times bye 2

Answer:

372 in³

Step-by-step explanation:

v1 = 12×4×4=192 in³

v2 = 12×3×5=180 in³

total volume =180 +192 =372 in³

Answer:

[tex]\huge{\{\fbox{\tt{Questions }}\}}[/tex]

The required measures of the circle are:

mDF = 75, m∠FBE 105, mFC=60
m∠CBE = 45, mDAC = 225. m∠ABE=135

m∠ABF=120

A section of a circle is a region enclosed by a chord and an arc of the circle. It is also called a circular sector. A circular sector is defined by its central angle, which is the angle between the two radii that form the sector, and its radius, which is the distance from the center of the circle to the endpoints of the sector.

Here,
A circle is shown,

mDF = 75  [shown in the image]

m∠FBE = 60 + ∠CBE

m∠FBE = 60 + ∠ABD     [∠ABD=∠CBE]

m∠FBE = 60 + 45             [∠ABD = 180 - 75-60]

m∠FBE = 105,

Similarly,

mFC=60, m∠CBE = 45, mDAC = 225, m∠ABE=135, and m∠ABF=120

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Answer:

Step-by-step explanation:

x² - 6x - 27

x² - 9x + 3x - 27

x(x - 9) + 3(x - 9)

(x - 9) (x + 3) = 0

x = 9

x = -3

The dimensions are 9 and 3

Step-by-step explanation:

So, it is a question of Arithmetic Progression.

Answer attached...

Hope it helps :)

Divide number of pens given by percentage:

2/0.25 = 8

She has 8 pens total.

Answer:

126

AS:

If these cubes are to to be placed so that their respective faces are parallel

or perpendicular, as the case may be, to the respective orientations of the

dimensions of the box, without tilting any cubes in any directions,

then choice B) can be justified. This leaves spaces (some volume) in the box

not filled by the cubes.

How many whole number of edges of the cubes fit into 4 cm?  

4 / 3 √ 2   must be rounded down to 3.

How many whole number of edges of the cubes fit into 8 cm?  

8 / 3 √ 2   must be rounded down to 6.

How many whole number of edges of the cubes fit into 10 cm?  

10 / 3 √ 2   must be rounded down to 7.

Then (3)(6)(7) = 126

Answer:

3

Step-by-step explanation:

m= y2 - y1/ x2 - x 1

(6, 7) (4, 1)

1-7= -6

4-6= -2

-6/-2 = 3

Answer:

Area=12/7square yard

Step-by-step explanation:

Area=base x height

Area=3x4/7=12/7 square yard

Answer:

everything is in the picture

Answer:

2) Sections 3 and 4

Step-by-step explanation:

Section 1 represents what ONLY applies to set HH, section 2 represents what is in BOTH set HH and Set C. So they are automatically out of the question.

Section 3 and 4, however, apply to either set C, or no set at all!

~~~~~~~~~~~~~~

Have a nice day fam. Spread The Love.

Answer:

B. a square must have 4 right angles, but a rhombus may or not have 4 right angles.

Answer:

B

Step-by-step explanation:

The main difference between a square and a rhombus is a square must have 4 right angles, but a rhombus may or may not have 4 right angles. All the angles of a square have to be 90 degrees. All right angles are 90 degrees. All squares are rhombuses, but not all rhombuses are squares. There are occasions when a rhombus has 4 right angles.

Answer:

m(3,1)

j(0,0)

E(0,-1)

x(5,0)