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3 years ago

X^2+3x^4-2x=7 is it a quadratic equation

1 answer:

6 0

No it’s not. a quadratic formula has x^2 as the highest value(?). the highest exponent here is 3x^4. it’s called a quartic polynomial

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Anyone ? Need help. Thanks

NNADVOKAT [17]

Answer:

$B.\:\: g(x)=4(2^x)$

Step-by-step explanation:

The given function is $f(x)=2^x$ .

If an exponential function is of the form; $F(x)=a(b^x)$ , then $0$ will vertically shrink the base function $f(x)=b^x$

and $a\:>\:1$ will vertically stretch the graph by $a$ units.

The correct answer is B.

7 0

3 years ago

13. Suppose the probability of passing a driving test is 65%. (a) On a certain afternoon 15 people are tested. (i) What is the e

Alex_Xolod [135]

Answer: 9

Step-by-step explanation:

Based on the information given in the question, the expected number of people who pass will be calculated as:

= Probability of passing the driving test × Number of people tested

= 65% × 15

= 0.65 × 15

= 9.75

Therefore, expected number of people who pass is 9.

8 0

3 years ago

Please help me :( I’m struggling

QveST [7]

Answer:

im assuming its b because the quality for the pic is bad and i cant really see it

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

What is the solution to the following equation? x2 + 3x + 4 = 0

andreev551 [17]

Answer:

$x=\dfrac{-3\pm \sqrt7i}{2}$

Step-by-step explanation:

The given equation is $x^{2}+3x+4=0$ .

We need to find the solution of the above equation.

The solution of an equation $ax^2+bx+c=0$ is :

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

We have, a = 1, b = 3 and c = 4

$x=\dfrac{-3+ \sqrt{(3)^2-4(1)(4)} }{2}, \dfrac{-3- \sqrt{(3)^2-4(1)(4)} }{2}\\\\=\dfrac{-3+\sqrt{9-16}}{2}, \dfrac{-3-\sqrt{9-16}}{2}\\\\=\dfrac{-3\pm \sqrt7i}{2}$

So, the solution of the given equation is $\dfrac{-3\pm \sqrt7i}{2}$ .

5 0

3 years ago

Please help me solve this.

worty [1.4K]

Answer: 59

Step-by-step explanation:

Given

2b³+5 and b=3 ⇒ 2b³+5=2(3)³+5

Simplify exponents

2(3)³+5

=2(3×3×3)+5

=2×27+5

Multiplication

=54+5

Addition

=59

Hope this helps!! :)

Please let me know if you have any questions

8 0

3 years ago

X^2+3x^4-2x=7 is it a quadratic equation​

X^2+3x^4-2x=7 is it a quadratic equation