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igor_vitrenko [27]
3 years ago
8

Please help and give a explanation I will give brainliest and 25 points

Mathematics
1 answer:
Doss [256]3 years ago
8 0

Answer:

Addition: -1 + -3 = -4

Subtraction: (-4) - 5 = -10

Step-by-step explanation:

Since adding a positive makes a negative number stay negative, it equals -4.

Then by subtracting a negative with a positive (5), the number stays negative once again, which then equals -10.

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F(x)=2x2+x+1<br> what is the value of f (-3)
chubhunter [2.5K]

Answer:

16

Step-by-step explanation:

First, we plug in -3 in place of x...

f(x) = 2(-3)^2 + (-3) + 1

Then, we simplify each indidvidual expression...

f(x) = 18 - 3 + 1

Finally, we add/subtract all the values to get our answer...

f(x) = 16

5 0
3 years ago
Dos coches están separados por una distancia de 12000 m salen al encuentro uno del otro, el primero con una aceleración de 5,6 m
blagie [28]

Answer:

la respuesta es la primera ( a )

Step-by-step explanation:

4 0
3 years ago
Hey! please help i’ll give brainliest!
mixer [17]

the answer is B

hope this helps :)

7 0
3 years ago
Read 2 more answers
Please help asap! thx
vovikov84 [41]

Answer:

y = 0

Step-by-step explanation:

The given sinusoidal equation is y = 2 \cdot sin \left(\dfrac{\pi}{2} \cdot x + 3 \right)

The general form of the sin function is presented as follows;

y = A·sin(B·(x - C)) + D

Where;

A = The amplitude

The period, T = 2·π/B

The frequency, f = B/2·π

C = The horizontal shift

D = The vertical shift

By comparison with the given sine function, we have;

The amplitude, A = 2

The frequency, f = B/2·π = π/2/(2·π) = 1/4

The frequency, f = 1/4 Hz

C = The horizontal shift = 3/(π/2) = 6/π

The vertical shift, D = 0

Given that the mid line of the parent function, sin(x), is the line y = 0, and that the vertical shift is 0, the midline of the function, y = 2 \cdot sin \left(\dfrac{\pi}{2} \cdot x + 3 \right), is therefore, the line;

y = 0.

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3 years ago
At what elevation does the atomosphere become too thin to breath
prohojiy [21]
At around 20'000ft. and higher.
4 0
3 years ago
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