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Nataliya [291]
3 years ago
12

The thing is in the picture​

Mathematics
1 answer:
vitfil [10]3 years ago
6 0
The answer should be C 20
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Select the order pair(s) that are solutions to this system of inequalities:
Phoenix [80]
You need to substitute the ordered pairs into the system of equations and pick the ones that makes the system of equations true: 

0 < -3(0) + 2  (True)
0 ≥ 0 - 1         (True) 
----------------
-4 < -3(0) + 2 (True)
-4 ≥ 0 - 1        (False) 
----------------
4 < -3(1) + 2  (False)
4 ≥ 1 - 1         (True) 
----------------
3 < -3(-3) + 1 (True)
3 ≥ -3 - 1        (True)
----------------

The Answer is (0,0) and (-3,3)
5 0
3 years ago
Please help, i don’t know how to do either of these. *will mark brainliest*
I am Lyosha [343]

Answer:

Step-by-step explanation:

Area is base times height. Parallelogram area/3

triangle area/4

5 0
3 years ago
Solve the following equation.<br> 1/3 k + 80 = 1/2 k + 120
Lady bird [3.3K]

Answer:

2; 3; 80; 1; -40; 1; -240 (answered from left to right then the next line)

Step-by-step explanation:

This is a question on fractions and solving algebraic equations. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

3 0
3 years ago
Read 2 more answers
Use the properties of 30-60-90 and 45-45-90 triangles to solve for x in each of the problems below. Then decode the secret messa
Flauer [41]

With the help of trigonometric function, the above problems have been calculated. See explanation below.

<h3>What are Trigonometric functions?</h3>

The term "trigonometric function" refers to functions that are periodic in nature and that shed light on how a right-angled triangle's angles and sides relate to one another.

The solutions to x in the respective problems is given as follows:

1) x = 5 /Sin(30°)

x = 10

!) Sin(45°) = 4/x

x = 4/sin(45°)

x = 4√2

I) Cos(45°) = √3 / x

x = √3 / Cos(45°)

x = √6

E) Tan(60°)

= (3√3) / x

x = (3√3) / 3

W) In trigonometry, every right-triangle that is isosceles in nature, the angle made by the legs and the hypotenuse will always equal 45°.

x = 45°

N) x² + x² = (7√2)²

x = 7

V) Tan(60°) = 7 / x

x = 7√3/3

K) x² + x² = (9)²

x = 9/√2

Y) Sin(60°) = 7√3/x

x = 14

M) Sin(30°) = x/11

x = 11/2

T) Sin(45°) = x/√10

x = √5

A) x + 2x + 90° = 180°

x = 30°

O) Sin(45°) = √2 / x

x = 2

R) Tan(30°) = x / 4

x = 4/√3

= 4√3 / 3

S) Sin(60°) = x / (10/3)

x = (5√3) / 3

Learn more about Trigonometric functions at:

brainly.com/question/14421002

#SPJ1

3 0
2 years ago
Use matrices to write the equation of the function in the form y = mx + b that contains the points
Fofino [41]

The line has a slope of -6 and a y intercept of 7.

The linear equation is given by:

y = mx + b;

where m is the slope of the line, b is the y intercept, y, x are variables.

The equation of the line passing through the points (6.-29) and (-4,31) is:

y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)\\\\y-(-29)=\frac{31-(-29)}{-4-6}(x-6)\\\\y+29=-6(x-6)\\\\y=-6x+7

Hence the line has a slope of -6 and a y intercept of 7.

Find out more at: brainly.com/question/13911928

3 0
3 years ago
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