1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Archy [21]
3 years ago
7

A system of equations is shown below:

Mathematics
1 answer:
JulijaS [17]3 years ago
6 0
X+y=3

Subtract x from both sides

y=-x+3

Substitute

2x--x+3=6
2x+x+3=6
3x+3=6

Subtract 3 from both sides

3x=3

Divide both sides by 3

x=1
You might be interested in
X 12. Find the volume of the composite solid. Use 3.14 for . 5.5 ft Find the volume of the cone using the formula. ​
svetlana [45]

Answer: 74.61 ft^3

Step-by-step explanation:

6 0
2 years ago
Help solve! stuck on factoring
sweet-ann [11.9K]

Answer:

a = x and b = 4

Step-by-step explanation:

x^3 - 64 = (x - 4)(x^2 + 4x + 16)

so

a = x and b = 4

4 0
3 years ago
Read 2 more answers
A piece of cardboard has the dimensions (x + 15) inches by (x) inches with the area of 60 in 2 . Write the quadratic equation th
pochemuha

Answer:

x^2 + 15x - 60 = 0

The actual dimension is 18.28 by 3.28

Step-by-step explanation:

Given

Dimension:

(x + 15)\ by\ x

Area = 60in^2

Required

Determine the quadratic equation and get the possible values of x

Solving (a): Quadratic Equation.

The cardboard is rectangular in shape.

Hence, Area is calculated as thus:

Area = Length * Width

60= (x + 15) * x

Open Bracket

60= x^2 + 15x

Subtract 60 from both sides

x^2 + 15x - 60 = 0

<em>Hence, the above represents the quadratic equation</em>

Solving (b): The actual dimension

First, we need to solve for x

This can be solved using quadratic formula:

x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}

Where

a = 1

b = 15

c = -60

So:

x = \frac{-b \± \sqrt{b^2 - 4ac}}{2a}

x = \frac{-15 \± \sqrt{15^2 - 4*1*-60}}{2*1}

x = \frac{-15 \± \sqrt{225 + 240}}{2}

x = \frac{-15 \± \sqrt{465}}{2}

x = \frac{-15 \± \21.56}{2}

Split:

x = \frac{-15 + 21.56}{2} or x = \frac{-15 - 21.56}{2}

x = \frac{6.56}{2} or x = \frac{-36.36}{2}

x = 3.28 or x = -18.18

But length can't be negative;

So:

x = 3.28

The actual dimensions: (x + 15)\ by\ x is

Length =3.28 +15

Length =18.28

Width = x

Width =3.28

<em>The actual dimension is 18.28 by 3.28</em>

3 0
3 years ago
360 Kilometers is 24% of _____ Kilometers
Evgen [1.6K]
Divide 360 by 24 to find 1%. Then multiply by 100. 360/24 *100= 1500
7 0
3 years ago
Read 2 more answers
Find f(g(x)) for the functions f(x)=5sqrt(x+1)-2 and g(x)=x^2-1
aivan3 [116]

The value of the composite function f(g(x)) is 5x + 2

<h3>Composite functions</h3>

Composite functions are functions inside another function. Given the following functions:

f(x) = 5√x+1 - 2

g(x) = x² - 1

Determine the composite function f(g(x))

f(g(x)) = f(x² - 1)

f(x² - 1) = 5√x² - 1+1 - 2

f(x² - 1) = 5√x² + 2

f(x² - 1) = 5x + 2

Hence the value of the composite function f(g(x)) is 5x + 2

Learn more on composite function here: brainly.com/question/13502804

#SPJ1

5 0
2 years ago
Other questions:
  • Y=2x-1 4x+3y=27 what is the value of x
    5·1 answer
  • En un polinomio P(x,y), homogéneo y completo en "x" e "y", la suma de los grados absolutos de todos sus términos es 420. ¿Cuál e
    13·1 answer
  • What is the word name for 3,552,308,725
    13·2 answers
  • Please help will mark brainliest
    12·1 answer
  • Find the value of:<br> a) x2 when x = 6
    6·2 answers
  • In Argentina, a cow on a ranch is expected to need an average of 4200 m2
    12·1 answer
  • Help me I don’t understand how to do this
    9·2 answers
  • Identify the y-intersept of the function -3(3)^x+4
    14·1 answer
  • What is an equation of the line that passes through the points (3, 0) and (6, -1)
    6·2 answers
  • Y=[x]-4<br> Determine the value of y, if x is 15
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!