MATHEMATICS HIGH SCHOOL

Help pls. it’s from khan academy
help pls. it’s from khan academy - 1

Answers

Answer 1
Answer: ANSWER: 7/6

step 1: Simplify both sides of the equation.
step 2:Subtract 2/3 from both sides.
step 3: Multiply both sides by 7/(-1).

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Solve for x.25x=65122512536

Put these numbers in order from least to greatest 11, 7, 8, 3, 6, three, 16, 10, 16

Answers

3, three, 6, 7, 8,10,16,16
3 , 3 , 6 , 7 , 8 , 10 , 11 , 16 , 16

hope this helps you

What the sum of the first seven terms 4,12,36,108

Answers

4,12,36,108,324,972,2916.

The pattern is each number is getting 3x bigger.

If you add all of the numbers, you will get 4372.

Can someone please help me with this? Please explain

Answers

Do you remember that the circumference of every circle is

    Circumference  =  (pi) times (the circle's diameter)                ?

Well, before we get to work on the problem, let's take this big hairy
gigantic complicated formula, and divide each side by (pi):

     the circle's diameter = (circumference) / (pi)  .

In the problem, you're given the circumference, you're told to use 3.14 for (pi),
and you're asked to find the diameter.

I'm pretty sure that you can handle it from this point.
circumference of the garden (circle): 2\pir = 81.64

r = 81.64 / (2x3.14)

diameter = 2 x radius: 
d= 2r
d= 2(81.64)/(2x3.14)
d= 81.64/3.14
d= 26

A triangle has vertices on a coordinate grid at A(-8, -10), B(9, -10), andC(9,-3). What is the length, in units, of AB?

Answers

The length of line AB is 17 units which is one side of a triangle.

What is a triangle?

A triangle is a closed 2D figure formed by joining three non-co-linear points. By the property of sides, triangles are of three types they are:- Equilateral triangle, Isosceles triangle, and scalene triangle.

We know the length of two given pairs of points can be determined by the distance formula which is \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2.

Given are the points of the vertices of a ΔABC are A(-8, -10), B(9, -10), and

C(9,-3).

∴ The length of line AB is,

= √((9 + 8)^2 + ( -10 + 10)^2) units.

= √(17^2) units.

= 17 units.

learn more about triangles here :

brainly.com/question/2773823

#SPJ5

Answer:

17

Step-by-step explanation:

What is the length of missing side b in the figure below?

Answers

according to the theory
b^2 = (13)^2 - (7)^2
b^2 = 169 - 49 = 120
b= root(120)
b= 10.95 cm
If you use the Pythagorean theorem you get 10.95cm, which is also the square root of 120.

Identify the 42nd term of an arithmetic sequence where a1 = -12 and a27 = 66

Answers

The arithmetic formula is expressed as an = a1 + d *(n-1)where n is an integer. Substituting from the given a1 = -12 and a27 = 66, 66 = -12 + d *(27-1). hence  , d is equal to 3. a42 thus using the formula is equal to 111. The final answer to this problem is 111.

Answer:

42nd term is 111

Step-by-step explanation:

a_1=-12,a_(27)=66

Now, Using formula of nth term of an A.P. we have :

a_n=a+(n-1)* d\n\text{Take n=27}\n\implies a_(27)=-12+(27-1)* d\n\implies 66=-12+26\cdot d\n\implies 26\cdot d = 78\n\implies d = 3

Now, first term a = -12 , n = 42 and d = 3

So, 42nd term is :

a_(42)=-12+(42-1)* 3\n\implies a_(42)=-12+41* 3\n\implies a_(42)=-12+123\n\bf\implies a_(42)=111

Hence, 42nd term is 111
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