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2 years ago

Which graph shows a function with a range of all real numbers greater than or equal to –1?

Mathematics

2 answers:

Brums [2.3K]2 years ago

6 0

Answer:

The 3rd Graph

Step-by-step explanation:

This is tricky because the angle shown isn't refering to what is inside of it but what is not inside of it.

Andre45 [30]2 years ago

4 0

Answer:

the third graph

Step-by-step explanation:

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18÷90.54 I need help I have I minute!!!

Tcecarenko [31]

0.19880716 should be your answer
Sorry if wrong

5 0

2 years ago

Read 2 more answers

Sally is trying to decide whether this triangle is a right triangle, so she measures the third side. The triangle is RIGHT if th

Sophie [7]

Answer:

Step-by-step explanation:

The answer is 12 inches

6 0

3 years ago

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

Find the product and sum of the roots of the equation: 3x^2-10=0

cluponka [151]

● 3x^2 - 10 = 0

Add 10 to both sides

● 3x^2 - 10 + 10 = 10

● 3x^2 = 10

Divide both sides by 3

● 3x^2/3 = 10/3

● x^2 = 10/3

● x = √( 10/3 ) or x = - √( 10/3 )

● √(10/3) + (-√(10/3)) = 0

● √(10/3) × -√(10/3) = -10/3

3 0

3 years ago

Write the equation of a circle whose center is at the origin and contains the point (2, 3).

Ivanshal [37]

Answer:

x²+y²=13

Step-by-step explanation:

any circle with center at (0,0)

is of the form

x²+y²=r²

find out r²

r² = (2²+3²)=13

so the answer

4 0

3 years ago