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3 years ago

10

What is 26^4 +x)=65??

1 answer:

Lunna [17]3 years ago

4 0

I'm not sure if this is correct but here is the answer:

Exact form:

x=-3/2

decimal form:

x=-1.5

mixed number form:

x=-1 1/2

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

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Please, I need help ASAP!

enot [183]

Answer:

A

Step-by-step explanation:

You can eliminate B and D because it’s using $\frac{g}{f}$ , but the question is asking $\frac{f}{g}$ . So it’s either A or C. They are both written correctly, but out of the two, A is correct because just that x ≠ $\sqrt{7}$ part of it is what makes it true.

The reason being is that the only thing that won’t make $\frac{2x+1}{x^{2}-7 }$ true is when the denominator equals 0, because anything divided by 0 is undefined. So, when you plug $\sqrt{7}$ for x in the denominator you get: $\sqrt{7^{2} } -7$ . The $\sqrt{7^{2} }$ part just turns into 7, and 7 - 7 is 0. So you don’t want x to equal $\sqrt{7}$ .

<u>So the answer is A:</u> $\frac{2x+1}{x^{2}-7}$ , $x\neq$ ± $\sqrt{7}$

There you go my friend!

I hope you understand and that this helps with your question! :)

7 0

3 years ago

Find the equation of the quadratic function whose graph is a parabola containing the points (0,2), (3,26), and (-1,6).

Arlecino [84]

Answer: y = 3x^2 -x + 2

Step-by-step explanation:

8 0

3 years ago

Write a standard form of a quadratic equation that has roots - 5/2 and 3.

lora16 [44]

Answer:

2x^2 - x - 15 = 0.

Step-by-step explanation:

In factor form this is

(x + 5/2)(x - 3) = 0

x^2 + 5/2x - 3x - 15/2 = 0

x^2 - 1/2x - 15/2 = 0

Multiply through by 2:

2x^2 - x - 15 = 0.

6 0

3 years ago

arlik [135]

Given:

In a right angle triangle θ is an acute angle and $\tan\theta =\dfrac{3}{5}$ .

To find:

The value of $\cos \theta$ .

Solution:

In a right angle triangle,

$\tan \theta=\dfrac{Perpendicular}{Base}$

We have,

$\tan\theta =\dfrac{3}{5}$

It means the ratio of perpendicular to base is 3:5. Let 3x be the perpendicular and 5x be the base.

By using Pythagoras theorem,

$Hypotenuse=\sqrt{Perpendicular^2+base^2}$

$Hypotenuse=\sqrt{(3x)^2+(5x)^2}$

$Hypotenuse=\sqrt{9x^2+25x^2}$

$Hypotenuse=\sqrt{34x^2}$

$Hypotenuse=x\sqrt{34}$

In a right angle triangle,

$\cos \theta=\dfrac{Base}{Hypotenuse}$

$\cos \theta=\dfrac{5x}{x\sqrt{34}}$

$\cos \theta=\dfrac{5}{\sqrt{34}}$

Therefore, the value of $\cos \theta$ is $\dfrac{5}{\sqrt{34}}$ .

8 0

2 years ago

which of the following numbers, -2/3, 0, 1/2, pie, 11/15, 25, 12, -5, 0.75, -1.82828282828282828282 are rational, irrational, wh

dexar [7]

Answer:

Step-by-step explanation

i need points soryyyyyyyyyyyyyyyy

3 0

2 years ago

Read 2 more answers