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4 years ago

What is the value of x ?

Mathematics

2 answers:

Margarita [4]4 years ago

7 0

Answer:

x = 400

Pythagorean Theorem: a^2 + b^2 = c^2

x = 29^2 - 21^2

x= 400

defon4 years ago

3 0

Answer:

use Pythagoras theoreom and try to solve it

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Suppose a system of two linear equations has one solution. What must be true about the graphs of the two equations?

malfutka [58]

They should both have the same solution?

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3 years ago

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Give 3 example of real life function with rule of correspondence input and output

Dmitrij [34]

Here are the examples of functions in real life.

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2.Places you can drive with Two Gallons of Fuel

If you still have two gallons of gas in your car's tank, you can visit several locations before running out of gas. As a result, there could be several answers to this question. In this case, the input is two gallons of fuel, and the output is a list of places you can visit with that amount of fuel.

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4 0

1 year ago

In a study of the effect of handedness on athletic ability, participants were divided into three groups: right-handed, left-hand

inessss [21]

Answer:

Option A) Discrete and quantitative

Step-by-step explanation:

We are given the following situation in the question:

In a study of the effect of handedness on athletic ability.

Variable 1: Handedness - right-handed, left-handed, and ambidextrous

Variable 2: Athletic ability measured on a 12-point scale.

Dependent Variable:

The dependent variable is the response variable and its value depends on the independent variable.

A change in independent variable leads to a change in the dependent variable.

For the given case the athlete ability is the dependent variable that depends on the independent variable of handedness.

Athletic ability is measured on a 12 point scale. thus, it can take numerical values from 0 to 12.

Thus, it is a quantitative variable.

Since theses values are always expressed in whole numbers and not in decimals so they cannot take all the values within an interval.

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8 0

3 years ago

Tiffany drove from New York to California over the course of 8 days. Each day, she took a one- hour lunch break and a two-hour d

Goshia [24]

The answer is 1/8 (A)

7 0

3 years ago

Find the solution set of the following quadratic equations using the quadratic formula.

oksian1 [2.3K]

Answer:

<h3> 1) $x_1=\dfrac{7+\sqrt{13}}2\,,\quad x_2=\dfrac{7-\sqrt{13}}2$ </h3><h3> 2) $x_1=-\dfrac13\,,\quad x_2=-3$ </h3>

Step-by-step explanation:

$x^2 - 7x + 9 = 0\quad\implies\quad a=1\,,\ b = -7\,,\ c=9\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-(-7)\pm\sqrt{(-7)^2-4\cdot1\cdot9}}{2\cdot1}=\dfrac{7\pm\sqrt{49-36}}2\\\\x_1=\dfrac{7+\sqrt{13}}2\,,\quad x_2=\dfrac{7-\sqrt{13}}2$

<h3>2)</h3><h3> $3x^2 + 10x=-3\\\\3x^2+10x+3=0\quad\implies\quad a=3\,,\ b =10\,,\ c=3\\\\x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}=\dfrac{-10\pm\sqrt{10^2-4\cdot3\cdot3}}{2\cdot3}= \dfrac{-10\pm\sqrt{100-36}}6\\\\x_1=\dfrac{-10+\sqrt{64}}6=\dfrac{-10+8}6=-\dfrac13\,,\qquad x_2=\dfrac{-10-8}6=-3$ </h3>

7 0

3 years ago