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3 years ago

2(x+3)^(2)+8=0 Solve.

Mathematics

1 answer:

olga2289 [7]3 years ago

7 0

Answer:

2i-3

Step-by-step explanation:

2(x+3)²=-8

(x+3)²=-4

x+3=2i

x=2i-3

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Given the following functions f(x) and g(x), solve (f+g)(3) and select the correct answer bellow f(x)=6x+3. G(x)=x-7

Likurg_2 [28]

Answer:

Step-by-step explanation:

I would just solve them individually for 3 and then add them together. f(x)=6(3)+3 = 21 and g(x)= 3-7= -4

(f+g)(3) = 21-4= 17

5 0

4 years ago

HII i really need help

Kipish [7]

Answer:

when in doubt choose c

Step-by-step explanation:

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3 years ago

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Find the volume of the cone.

Ne4ueva [31]

Answer:

3142.86 cubic cm

Step-by-step explanation:

volume of cone is given by formula

volume of cone = 1/3(area of base*height)

Given radius of base = 10cm

we know area of circle is given by $\pi r^2$ where r is radius of circle

thus area of base of cone is calculated below

$\pi 10^2\\=> 22/7 *100\\=> 314.2857$

area of base of cone is 314.2857 square cm

height = 30 cm

Thus volume of cone = 1/3* (area of base*height)

= 1/3(314.2857*30)

= 1/3 *9428.571 = 3142.857.

Thus, volume of cone is 3142.857 cubic cm.

volume of cone to the nearest hundredth is 3142.86 cubic cm

6 0

3 years ago

Questions 1-6 please

MakcuM [25]

Question 1 is $6 \sqrt{2}$
question 2 is $4 \sqrt{5} + 3 \sqrt{2}$
question 3 is $6 \sqrt{2}$
question 4 is $8 \sqrt{3}$
question 5 is $\frac{ \sqrt{3}}{2}- \sqrt{3}$
question 6 is $5$

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4 years ago

BRAINLIEST WILL BE GIVEN TO 1ST ANSWER THAT IS RIGHT

Anna [14]

The given info is sufficient to warrant the conclusion that both triangles are 45-45-90 triangles.

The measure of angle B is 45 degrees, or pi/4 radians.

The cosine of this angle B is 1/√2, or √(2)/2. This is approx. 0.707.

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3 years ago

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