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4 years ago

Write the following phrase as a variable expression. Use x to represent "a number".

Mathematics

1 answer:

mojhsa [17]4 years ago

3 0

Sum means add, a number means x, and four means, uh, 4...

x+4. is what you're looking for

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Y=33x+102 what is Y?

rusak2 [61]

Answer:

you have y so i will guess u mean x your answer for x will be

Step-by-step explanation:

since 33 is ur first number and 11 evenly goes into 33 it will be

Y 34

Y= ----- SUBTRACTED BY -------

33 11

<h2>Y EQUALS Y OVER 33 MINOUS 34OVER 11</h2>

8 0

3 years ago

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth.

likoan [24]

Answer:

Thus, the two root of the given quadratic equation $x^2+4=6x$ is 5.24 and 0.76 .

Step-by-step explanation:

Consider, the given Quadratic equation, $x^2+4=6x$

This can be written as , $x^2-6x+4=0$

We have to solve using quadratic formula,

For a given quadratic equation $ax^2+bx+c=0$ we can find roots using,

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$ ...........(1)

Where, $\sqrt{b^2-4ac}$ is the discriminant.

Here, a = 1 , b = -6 , c = 4

Substitute in (1) , we get,

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

$\Rightarrow x=\frac{-(-6)\pm\sqrt{(-6)^2-4\cdot 1 \cdot (4)}}{2 \cdot 1}$

$\Rightarrow x=\frac{6\pm\sqrt{20}}{2}$

$\Rightarrow x=\frac{6\pm 2\sqrt{5}}{2}$

$\Rightarrow x={3\pm \sqrt{5}}$

$\Rightarrow x_1={3+\sqrt{5}}$ and $\Rightarrow x_2={3-\sqrt{5}}$

We know $\sqrt{5}=2.23607$ (approx)

Substitute, we get,

$\Rightarrow x_1={3+2.23607}$ (approx) and $\Rightarrow x_2={3-2.23607}$ (approx)

$\Rightarrow x_1={5.23607}$ (approx) and $\Rightarrow x_2=0.76393}$ (approx)

Thus, the two root of the given quadratic equation $x^2+4=6x$ is 5.24 and 0.76 .

7 0

3 years ago

Read 2 more answers

Match the vocab terms with the correct definition.

Anna007 [38]

7. compound events that that are not affected by other's outcomes

8 0

3 years ago

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Question 14

sergey [27]

Answer:

Step-by-step explanation:

4 0

3 years ago

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Exactly 512 tickets were sold for the talent show at Cypress Middle School. The number of student tickets sold was three times t

ioda

Answer:

384 student tickets and 128 adult tickets

Step-by-step explanation:

S for student and A for adult

s+a=512

s=3a

3a+a=512

4a=512

a=128

s=384

6 0

4 years ago

Read 2 more answers

Write the following phrase as a variable expression. Use x to represent​ "a number".

Write the following phrase as a variable expression. Use x to represent "a number".