Hi, I need help pretty plz! If anyone has the right answers, plz share! Thank u! (Screenshots below)

Answers

Answer 1

Answer:

Answer:

squareroot 18, 9, 4pi, 14

b - squareroot of 4 is 2and the squareroot of 9 is 3. 5 is between 4 and 9, meaning it must be between 2 and 3. Also a negative so on the left of the 0.

c - sqrt of 1 is 1 and sqrt of 4 is 2. between 1 and 2. closer to 2 (because 3 is closer to 4) than to 1.

j=irrational cant be in fraction form

k=rational is in raction form

l= rational it equals 4 which is an integer

m=irrational because it has pi in it

for the graph...

j=3.46

k=1.88

l=4

m=4.71

Step-by-step explanation:

Use a calculator or think about perfect squares to determine answers.

rational can be a fraction or integer, irrational has pi or a decimal.

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A balanced die is rolled 10 times, calculate the probability of rolling a 4 five times

Help meeeee prettty pleaseee fastttttt

Answers

Answer:

Step-by-step explanation:

Given

y³ = 125 ( take the cube root of both sides )

$\sqrt[3]{y^3}$ = $\sqrt[3]{125}$

y = 5 → D

A tangent-tangent angle intercepts two arcs that measure 135 degrees and 225 degrees. What is the measure of the tangent tangent angle?

Answers

Answer:

$M=45 degrees$

Step-by-step explanation:

It is given that A tangent-tangent angle intercepts two arcs that measure 135 degrees and 225 degrees, thus in this the vertex lies outside, therefore

The measure of the tangent tangent angle is the half of the difference of the two given arc, that is

$M=(1)/(2)(225-135)$

⇒ $M=(90)/(2)$

⇒ $M=45 degrees$

Therefore, The measure of the tangent tangent angle is 45 degrees.

225-130/2=45degree..

Use the Elimination method to solve the system of equations.

X+y=-3
X-y=13

Answers

x + y = -3
x - y = 13
    2x = 10
   2 2
      x = 5
x + y = -3
5 + y = -3
- 5    - 5
      y = -8
(x, y) = (5, -8)

For x
x+y=-3
x-y=13
---------
2x=10
x=5
For y
5+y=-3
y=-3-5
y=-8

Devon wants to write an equation for a line that passes through 2 of the data points he has collected. The points are (8, 5) and (–12, –9). He writes the equation 7x – 10y = 3. Is this a good model? Explain your reasoning.

Answers

For this case we have the following equation:
$7x - 10y = 3$
From here, we must substitute ordered pairs of the form:
(x, y)
If the ordered pair satisfies the equation, then it belongs to the line.
We have then:

For (8, 5):
We substitute the following values:
$x = 8 y = 5 7 (8) - 10 (5) = 3 56 - 50 = 3 6 = 3$
We observe that the equation is not satisfied and therefore, this point does not belong to the line.
Since one of the points does not belong to the line, then the equation is not a good model.

Answer:
It is not a good model. One of the points does not belong to the line.

Calculate the discriminant.

x2 + 2x – 2 = 0

Answers

$x^2 + 2x - 2 = 0 \n \n a=1 , \ b=2 , \ c= -2\n \n \Delta = b^(2)-4ac = 2^(2)-4*1* (-2)= 4+8=12 \n \n√(\Delta )=\1{12}= √(4*3)=2√(3)\n \nx_(1)=(-b-√(\Delta ))/(2a) =(-2-2√(3))/(2)=(2(-1-√(3)))/(2) =-1-√(3) \n \nx_(2)=(-b+√(\Delta ))/(2a) =(-2+2√(3))/(2)=(2(-1+√(3)))/(2) =-1+√(3)$

Which of the following Platonic solids is also a pyramid? A. tetrahedron B. Hexahedron C. octahedron D. Icosahedron E. dodecahedron F. None of These

Answers

Tetrahedron is a Platonic solids which is also a pyramid, i.e. Option (A).

What is pyramid?

Pyramid is a three dimensional shape. Pyramid is a polyhedron formed by connecting a polygonal base and a point. A triangular pyramid is also called a tetrahedron.

A tetrahedron is known as a triangular pyramid in geometry. The tetrahedron consists of 4 triangular faces, 6 straight edges, and 4 vertex corners. It is a platonic solid which has a three-dimensional shape with all faces as triangles.

So,

As mentioned in the above definition "A triangular pyramid is also called a tetrahedron."

Hence, we can say that Tetrahedron is a Platonic solids which is also a pyramid, i.e. Option (A).

To know more about pyramid click here

brainly.com/question/17615619

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tetrahedron - its the only one that has a base from which all edges meet at a single point.