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2 years ago

Can someone help with this challenging graph

Mathematics

1 answer:

-BARSIC- [3]2 years ago

5 0

Answer:

(a) (-∞, -8) (-6, -4) (-2, ∞)

(b) -6, -2

(d) 5

Step-by-step explanation:

(a) A function is "decreasing" when the y-value decreases as the x-value increases.

⇒ the function is decreasing over these intervals : (-∞, -8) (-6, -4) (-2, ∞)

(b) Local maxima are the points on the function where it reaches a maximum.

⇒ maxima at x = -6 and x = -2

(d) 5

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The vertices of ΔXYZ are X(−3, −6), Y(21, −6), and Z(21, 4). What is the perimeter of the triangle?

insens350 [35]

$XY= \sqrt{(21-(-3))^2+(-6-(-6))^2} = \sqrt{(21+3)^2+(12-12)^2} = \\ = \sqrt{24^2+0} = \sqrt{24^2} =24 \\ YZ= \sqrt{(21-21)^2+(4-(-6))^2} = \sqrt{0^2+(4+6)^2} = \sqrt{10^2} =10 \\ XZ= \sqrt{(21-(-3))^2+(4-(-6))^2} = \sqrt{(21+3)^2+(4+6)^2} = \\ =\sqrt{24^2+10^2} = \sqrt{576+100} = \sqrt{676} =26 \\ \\ P=XY+YZ+XZ=24+26+10=60$

8 0

3 years ago

For g(x)=1/2x-11, find x when g(x)=-5

Vesna [10]

Answer:

x = 12

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

g(x) = 1/2x - 11

g(x) = -5

Step 2: Solve for x

Substitute: -5 = 1/2x - 11
Isolate x term: 6 = 1/2x
Isolate x: 12 = x
Rewrite: x = 12

7 0

3 years ago

I can you help me one this one too please

amid [387]

Answer:

hey sorry what grade is this

Step-by-step explanation: bc i dont know

3 0

3 years ago

Read 2 more answers

The mystery number has five digits,the digit in the tenth place is double the digit in the tens place,the mystery number rounds

hjlf

Answer:

See explanation

Step-by-step explanation:

If the mystery number rounds to 700, then it has 3 digits before decimal points and two digits after decimal point.

Hence, the mystery number is

$a b c . d e$

The digit in the tenth place is double the digit in the tens place, so

$d=2b$

If b = 1, then d = 2

If b = 2, then d = 4

If b = 3, then d = 6

If b = 4, then d = 8

The difference between the digit in the hundreds place and the ones place is 3, so

$a-c=3$

The first digit can be only 7, because b < 5 and the number rounds to 700. So

If a = 7, then c = 4

All possible answers:

714.2e

724.4e

734.6e

744.8e,

where e is an arbitrary digit from 0 to 9.

There are 40 possible numbers which match the situation.

8 0

4 years ago

The height in feet of a projectile with an initial

enot [183]

Answer:

thus is what i learnd as a baby 64CK NI>GGA DI PSY SH :]

Step-by-step explanation:

6 0

3 years ago

Can someone help with this challenging graph ​

Can someone help with this challenging graph