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2 years ago

2x^2-7x-15put this function into standard form

Mathematics

1 answer:

kari74 [83]2 years ago

8 0

Answer:

It is already in standard form. $2x^2-7x-15$ is correct.

Step-by-step explanation:

The standard form of a quadratic equation (which this equation is since there is an $x^2$ term) is described as $ax^2+bx+c=0$ , where a≠0.

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There are 25 kids in a class room , five kids are sitting at a desk and the rest are at a table what is the ratio of kids at a d

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Answer:

5:25 ; 1:5

Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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2 years ago

triangle QRS is an equilateral triangle. If QR is seventeen more than twice x, RS is 19 less than six times x, and QS is one les

koban [17]

Value of x is 9 and measure of each side is 35 units.

<u>SOLUTION: </u>

Given, Triangle QRS is an equilateral triangle.

QR is seventeen more than twice x, $\rightarrow QR = 17 + 2x$

RS is 19 less than six times x, $\rightarrow RS = 6x-19$

And QS is one less four times x, $\rightarrow QS = 4x-1$

We have to find x and measure of each side.

Now, we know that, sides of equilateral triangle are equal,

Then $QR = QS \rightarrow 17 + 2x = 4x-1 \rightarrow 4x-2x = 17 + 1 \rightarrow 2x = 18 \rightarrow x = 9$

So, value of x is 9.

$\begin{array}{l}{\text { Now, } \mathrm{QR}=17+2(9)=17+18=35} \\\\ {\mathrm{RS}=6(9)-19=54-19=35} \\\\ {\mathrm{QS}=4(9)-1=36-1=35}\end{array}$

Hence, value of x is 9 and measure of each side is 35.

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3 years ago

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kolezko [41]

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2 years ago