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3 years ago

Hey i need help with these and i’ll mark you brainliest

Mathematics

1 answer:

Gnoma [55]3 years ago

7 0

Answer:

I believe for 21 PQR is 60 and therefore PQS would be 38

Step-by-step explanation:

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Let f(x) be a func. satisfying f(-x)=f(x) for all real x.if f"(x) exist, find its value.

OverLord2011 [107]

Answer:

$f''(x)=f''(-x)$

Step-by-step explanation:

A function satisfying the equation $f(x)=f(-x)$ is said to be an even function. This denomination comes from the fact that the same relation is satisfied for functions of the form $x^{n}$ with $n$ even. Observe that if $f$ is twice differentiable we can derivate using the chaing rule as follows:

$f(x)=f(-x)$ implies $f'(x)=f'(-x)\cdot (-1)=-f'(-x)$

Applying the chain rule again we have:

$f'(x)=-f'(-x)$ implies $f''(x)=-f''(-x)\cdot (-1)=f''(-x)$

So we have that function $f''(x)$ is also an even function.

4 0

3 years ago

Can anyone pleaseee help me with this question

bija089 [108]

Answer:

3.7

Step-by-step explanation:

$4(x+3.3)=28\\4x+13.2=28\\4x=28-13.2\\\\4x=14.8$

$x=\frac{14.8}{4} =3.7$

Hope this helps

3 0

2 years ago

Read 2 more answers

Which phrase describes the variable expression z+ 8?

a_sh-v [17]

9514 1404 393

Answer:

A. z increased by 8

Step-by-step explanation:

When a positive value is added, the original value (z) is <em>increased</em>.

z + 8 ⇔ z increased by 8

5 0

2 years ago

Jasper's lawn is 3/4 of an acre in size. The fertilizer bag states that 5 1/2 bags are required for 1 acre. How many bags does J

Nady [450]

Answer: $4\dfrac{1}{8}\ \text{bags}$

Step-by-step explanation:

Given

Jasper lawn is three-fourth of an acre

1 acre of land requires $5\frac{1}{2}$ bags

convert mixed numeral to fraction

$\Rightarrow 5\dfrac{1}{2}=\dfrac{11}{2}$

$\therefore 1\ \text{acre}\equiv\dfrac{11}{2}\ \text{bags}\\\\\Rightarrow \dfrac{3}{4}\ \text{acre}\equiv \dfrac{11}{2}\times \dfrac{3}{4}=\dfrac{33}{8}\ \text{bags}$

$\Rightarrow \dfrac{33}{8}\ \text{bags}=4\dfrac{1}{8}\ \text{bags}$

8 0

2 years ago

How many storages per hour and retrievals per hour can each s/r handle without being utilized g?

MrRissso [65]

The size of any video depends on resolution of video, FPS and Audio Quality too. Uncompressed 1080p video of is 120–130mb per minute average

5 0

2 years ago