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2 years ago

1.1) Use the graph of a function f to determine x or y to the nearest integer.

Mathematics

2 answers:

True [87]2 years ago

7 0

When f(x)=0 x=-1, 0, 8

vlabodo [156]2 years ago

4 0

F(x) = 0 is the same as saying y = 0. When y = 0, the line will cross the x-axis. Look for where the line crosses the x-axis.

The line crosses the x-axis at x = -1, x = 0, and x = 8. At these x-points, y will equal 0.

The answer is 'When f(x) = 0, x = -1, 0, -8.'

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MArishka [77]

Answer:

$11 \geqslant x$

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3 years ago

Part A Prove that when x > 1, a triangle with side lengths a = x2 − 1, b = 2x, and c = x2 + 1 is a right triangle. Use the Py

Nataly [62]

Step-by-step explanation:

Given : A triangle with side lengths $a = x^2-1, b = 2x, \text{ and } c = x^2 + 1$

To find : Prove that when x > 1, it is a right triangle. Use the Pythagorean theorem and the given side lengths to create an equation. Use the equation to show that this triangle follows the rule describing right triangles. Explain your steps ?

Solution :

For right triangle the Pythagorean theorem is to be satisfied.

i.e. $c^2=a^2+b^2$

Here, $a = x^2-1, b = 2x, \text{ and } c = x^2 + 1$

Substitute the values,

$(x^2+1)^2=(x^2-1)^2+(2x)^2$

$x^4+1+2x^2=x^4+1-2x^2+4x^2$

$x^4+1+2x^2=x^4+1+2x^2$

LHS=RHS

It is a right triangle.

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3 years ago

3. Solve 2log4y - log4 (5y - 12) = 1/2<br>

Ilia_Sergeevich [38]

Answer:

y = 4 or y = 6

Step-by-step explanation:

2log4y - log4 (5y - 12) = 1/2

2log_4(y) - log_4(5y-12) = log_4(2) apply law of logarithms

log_4(y^2) + log_4(1/(5y-12)) = log_4(/2) apply law of logarithms

log_4(y^2/(5y-12)) = log_4(2) remove logarithm

y^2/(5y-12) = 2 cross multiply

y^2 = 10y-24 rearrange and factor

y^2 - 10y + 24 = 0

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y= 4 or y=6

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3 years ago

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Vikki [24]

Well Jay has 20 phone numbers.
20j=13r-3x2 im not sure but i hope that helped a little.

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3 years ago

¿What is the density of a rock if it has a mass of 50 g and a volume of 10 mL?

yan [13]

D=m/v so d=50/10=5

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It might be ml^3 (5g/ml^3) but I don’t remember

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3 years ago

1.1) Use the graph of a function f to determine x or y to the nearest​ integer.

1.1) Use the graph of a function f to determine x or y to the nearest integer.