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arsen [322]
3 years ago
11

What equation can be used to determine x in the system of linear equations below ?

Mathematics
1 answer:
NARA [144]3 years ago
6 0
Either
y=mx+b
or
y=-1/m*x+k
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Pls help no links pls
goblinko [34]
B is the correct answer
7 0
3 years ago
Read 2 more answers
Let A be the set of all strings of decimal digits of length 5. For example 00312 and 19483 are two strings in A. You pick a stri
lord [1]

Answer:

0.59049

Step-by-step explanation:

Set of all digit strings of length 5

Digit range = (0 - 9) = 10

Length of digit = 5

Total possible outcomes = 10^5 = 100000

String without a 4 ;

Digit range = (0,1,2,3,5,6,7,8,9) = 9

Length of digit = 5

Required outcome = 9^5 = 59049

Required outcome / Total possible outcomes

59049 / 100000

= 0.59049

4 0
3 years ago
Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tent
nalin [4]

Answer:

The last one (x=11.3, y=8).

Step-by-step explanation:

1) There are three trigonometric ratios for right-angled triangles.

sin()=\frac{opposite}{hypotenuse}\\cos()=\frac{adjacent}{hypotenuse}\\tan()=\frac{opposite}{adjacent}

In a right triangle, the hypotenuse, h, is the side opposite the right angle. Relative to the acute angle θ, check the attachment, the legs are called the opposite side, o, and the adjacent side a.

2) In this case, we are given a length and an angle to find x and y.

Let's find x first. To find x we need to use sin()=\frac{opposite}{hypotenuse}.

sin(45)=\frac{8}{x}\\sin(45)x=8\\x=\frac{8}{sin(45)} \\x=11.31

Find y.

Notice that, we can use the Pythagorean Theorem (c^2=a^2+b^2) to find y.

c^2=a^2+b^2

11.31^2=8^2+b^2\\11.31^2 - 8^2 = b^2\\63.9161 = b^2\\\sqrt{63.9161} = b\\b = 7.99

3) Round them off to the nearest tenth.

x=11.31\\x=11.3

y=7.99\\y=8

Therefore, the correct choice is the last one (x=11.3, y=8).

4 0
2 years ago
The graph shows the quadratic function f(x) .
Rom4ik [11]
The average rate of change is the change in y divided by the change in x...

(f(8)-f(4))/(8-4)

(4-12)/4

-8/4

-2

So the average rate of change is -2.
3 0
3 years ago
Read 2 more answers
Need help with these
Ugo [173]
T = nb is the answer
8 0
3 years ago
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