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3 years ago

DUPLICATE

Mathematics

2 answers:

Dennis_Churaev [7]3 years ago

7 0

PLEASE READ THE ATTACHED FILE

cestrela7 [59]3 years ago

4 0

Draw the vector C⃗ =A⃗ +2B⃗ . The drawing is attached below

<h3>Further explanation </h3>

Vector is a quantity that has a value and direction. It can be symbolized in the form of directed line segments. Operations on vectors include addition and subtraction.

In the drawing, vector B seems to be (1, 108 degrees) and vector A seems to be (4, 0 degrees) in the drawing.

$a + b = c$

Where If vector $a$ is added by inverse $b (-b)$ then the sum becomes $a + (- b) = a-b$

If we multiply vector A by 1 then the length becomes 1 times vector A and in the same direction, so does vector B multiplied by the value of +2, which is 2 times the length of vector B in the same the direction as vector A, so we get vector C (attached picture) obtained by drawing a line from the starting point A and the endpoint B

<h3>Learn more</h3>

Learn more about the vector brainly.com/question/12501440
Learn more about the drawing of vectors brainly.com/question/5029314
Learn more about degrees of vectors brainly.com/question/11043027

<h3>Answer details</h3>

Grade: 9

Subject: Mathematics

Chapter: the vector

Keywords: the vector, Draw, 108 degrees, 4, 0 degrees, the drawing

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The topic is about operations on functions: composition and transformation

telo118 [61]

Answer:

5, 1, 5, 1.

Step-by-step explanation:

take it one step at a time.

for the first one f(g(1))

first do whats inside of the parenthesis.

> g(1), go to g(x) graph, go to x= 1 and your y-value is your new value (3)

> your new equation is now f(3)

→ go to f(x) graph, go to x= 3, your y-value is 5. Your final answer is 5.

5 0

3 years ago

Change the equation of the circle x^2+14x+y^2-10y=14x 2 + 14 x + y 2 − 10 y = 14 into center-radius form of a circle.

jonny [76]

Answer:

The answer to your question is (x + 7)² + (y - 5)² = 88

Step-by-step explanation:

Equation

x² + 14x + y² - 10y = 14

Complete perfect trinomial squares

x² + 14x + (7)² + y² - 10y + (5)² = 14 + (7)² + (5)²

Simplify

x² + 14x + (7)² + y² - 10y + (5)² = 14 + 49 + 25

x² + 14x + (7)² + y² - 10y + (5)² = 88

Factor

(x + 7)² + (y - 5)² = 88 This is the equation in the form

center-radius

7 0

3 years ago

How to simplify 4(2a)+7(-4b)+(3×c×5)

maw [93]

→ Solutions

⇒ Simplify 4(2a)+7(−4b)+3c(5)⇒ 8a+−28b+15c

Answer
⇒ 8a−28b+15c

5 0

3 years ago

Read 2 more answers

Identify the trinomial that is a perfect square. 81x^2 − 70x 16 64x^2 − 90x 25 81x^2 − 72x 16 64x^2 − 70x 25

Vilka [71]

Hmm
(a+b)^2=(a+b)(a+b)=a^2+2ab+b^2

basically
for
ax^2+bx+c
it is a perfect trinomial when
b=2(√a)(√c)
remember to take both positive and negative roots into consideration
because
(a+b)^2=a^2+2ab+b^2 and
(a-b)^2=a^2-2ab+b^2

see each

first one
-70=2(9)(4)
-70=72
false

second
-90=2(8)(5)
-90=80
false

third
-72=(9)(4)
-72=72
false
but, the last one could be negative
(9x-4)^2 is factor
that is the answer

the answer is 81x^2-72x+16

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3 years ago

A farmer has both pigs and chickens on his farm there are 78 fee and 27 heads how many pigs and how many chickens are there

Andre45 [30]

Assuming health non-mutated animals:
$Feet = 4*Pigs + 2*Chickens$
$Heads = Pigs + Chickens$

By back substitution:
$78 = 4*(27-Chickens) + 2*Chickens$
$78 = 108 -2*Chickens$
$-30 = -2*Chickens$
$Chickens= 15$

Then:
$27 = Pigs + 15$
$Pigs = 12$

To check:
$Feet = 4*Pigs + 2*Chickens$
$78 = 4*12 + 2*15$
$78 = 48 + 30$
$78 = 78$ CHECKS

6 0

3 years ago