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2 years ago

What does Point P on the number line represent? (Use the hyphen for negative numbers, such as −9)

Mathematics

1 answer:

m_a_m_a [10]2 years ago

4 0

Answer:

-5

Step-by-step explanation:

considering they are counting in whole numbers it should be -5

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PLEASE HELP ME WITH FLVS I WILL FAN YOU AND GIVE YOU A MEDAL!!!!

lutik1710 [3]

5 $\sqrt{x}$ +10-15=30
5 $\sqrt{x}$ =35
 $\sqrt{x}$ =7
х=49
5√49+10-15=30
30=30

$\sqrt{x}$ +1+7=4
 $\sqrt{x}$ =-4
it is no solution

3 0

3 years ago

Calculate the pOH for a solution with h3o 2.5x10-5 g?

topjm [15]

Answer:

pOH = 9.4

Step-by-step explanation:

Mathematically;

pH + pOH = 14

pOH = 14 - pH

But pH = -log[H3O+]

From the question [H3O+] = 2.5 * 10^-5

Thus pH = -log (2.5 * 10^-5)

pH = 4.6

Thus;

pOH = 14-4.6

pOH = 9.4

8 0

3 years ago

B4.1a) The diagram shows a triangle.

Yuki888 [10]

So angles on a straight line add up to 180°
And angles in a triangle adds up to 180° try if you can work it out now
If you still don’t understand let me know

3 0

3 years ago

Scientists found that the body of a male consists of 3.58×10^-4 lbs of zinc. What is the number written in standard notation?

notka56 [123]

Answer:

The number is 0.000358 lbs.

Step-by-step explanation:

Scientists found that the body of a male consists of $3.58 \times 10^{-4}$ lbs of zinc.

This is a scientific way of writing a number.

For, example 0.0023, a number in normal or standard notation can be scientifically written as $2.3 \times 10^{- 3}$ .

So, in our case, the number is $3.58 \times 10^{-4}$ lbs and we have to write this number in standard notation.

Then the number is 0.000358 lbs. (Answer)

4 0

3 years ago

In Exercise, find the derivative of the function. y = ln(3 + x2)

erastovalidia [21]

Answer: $\dfrac{2x}{3 + x^2}$

Step-by-step explanation:

We know the property of derivative: $\dfrac{d}{dx}(\log (x))=\dfrac{1}{x}$

Given function : $y=\ln(3 + x^2)$

Differentiate both sides with respect to x , we get

$\dfrac{dy}{dx}=\dfrac{d}{dx}(\ln(3 + x^2))$

$\Rightarrow\ \dfrac{dy}{dx}=\dfrac{1}{3 + x^2}\cdot\dfrac{d}{dx}(3 + x^2)$ [By Chain rule]

$\Rightarrow\ \dfrac{dy}{dx}=\dfrac{1}{3 + x^2}\cdot(0+2x)$

[Since $\dfrac{d}{dx}(a)=0$ , where a is scalar and $\dfrac{d}{dx}(x^n)=n(x)^{n-1}$ ]

$\Rightarrow\ \dfrac{dy}{dx}=\dfrac{2x}{3 + x^2}$

Hence, the derivative of the given function is $\dfrac{2x}{3 + x^2}$ .

5 0

3 years ago