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3 years ago

Will give BRAINEST

Mathematics

2 answers:

Svetlanka [38]3 years ago

4 0

X-y=2 (*-2) --> -2x+2y=-4
2x+3y=14
------------------
2x+3y=14
-2x+2y=-4
------------------
5y=10
y=2

Marrrta [24]3 years ago

3 0

A.) is the answer, because, 2*4= 8 2*3=6 8+6= 14

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Please help me out! :)

Goryan [66]

Answer:

$\frac{1}{6}$

Step-by-step explanation:

the third option

3 0

3 years ago

Read 2 more answers

PQR is a right angled triangle calculate the size of angle marked x

romanna [79]

Answer:

$\displaystyle x \approx 37.4^\circ$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] cosθ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Define

Angle θ = x

Adjacent Leg = 5.8

Hypotenuse = 7.3

Step 2: Solve for x

Substitute in variables [Cosine]: $\displaystyle cosx^\circ = \frac{5.8}{7.3}$
[Fraction] Divide: $\displaystyle cosx^\circ = 0.794521$
[Equality Property] Trig inverse: $\displaystyle x^\circ = cos^{-1}(0.794521)$
Evaluate trig inverse: $\displaystyle x = 37.39^\circ$
Round: $\displaystyle x \approx 37.4^\circ$

8 0

2 years ago

The slope of a linear function is 1/5. For every rise of 5 units, what is the run?

Jlenok [28]

Answer:

for every rise of 1 the run would be 25

7 0

2 years ago

Pierre throws a snowball up in the

erastovalidia [21]

Using the given function, it is found that the snowball traveled 4 feet when the height is 20 feet.

<h3>What is the function for the ball's height?</h3>

The height when x feet are traveled is given by:

h(x) = -0.5x² + 6x + 4.

When the height is of 20 meters, we have that h(x) = 20, hence:

20 = -0.5x² + 6x + 4.

0.5x² - 6x + 16 = 0

x² - 12x + 32 = 0

(x - 8)(x - 4) = 0

For the first time: x - 4 = 0 -> x = 4.

The snowball traveled 4 feet when the height is 20 feet.

More can be learned about functions at brainly.com/question/25537936

3 0

1 year ago

-10t+8+-2t=16 I need help!

Nutka1998 [239]

Answer:

there are two answers

Step-by-step explanation:

Exact form T=-2/3

Decimal form T=0.666666 and so on

Hope this helps :)

3 0

3 years ago