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anzhelika [568]
3 years ago
9

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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Barrett and Penelope have some quarters for the vending machine.
lutik1710 [3]

Answer:

if we take the number of quarters Barrett have to be x we know Penelope has twice that ie 2x. so in total they have 2x+x = 60, 3x = 60; so x= 60/3 = 20.

Barrett has 20 quarters.

7 0
3 years ago
Determine the intercepts of the line <br> The x and y intercepts please help
Anna007 [38]

Answer:

See below in bold.

Step-by-step explanation:

As we see from the diagram the x -intercept ( where the line intercepts the horizontal x-axis) is (3, 0) and the y-intercept is  (0, -10).

5 0
4 years ago
Find the surface area of the cylinder (please help)
Misha Larkins [42]

Answer:

surface area we can also take it as total surface area

9 is the radius and 5cm is the height . as they asked total surface area we have to take the area of base so tht we can make it as

total surface area = csa of cylinder + area of base

we know that,

2pirh+pir²

pir(2h+r)

pir(2×5+9)

pir(10+9)

pir(19)

22/7×9×19

3762/7

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4 0
2 years ago
Read 2 more answers
What is the shortest driving distance from the animal shelter to the stadium?
Inessa [10]

Answer:

7 miles

Step-by-step explanation:

Four miles plus 3 miles = 7 miles


6 0
3 years ago
Find the mass and center of mass of the lamina that occupies the region D and has the given density function rho. D is the trian
Pachacha [2.7K]

Answer:

m=1/300 du

Step-by-step explanation:

we have that m=∫∫rho(x,y)dA for this we must find the limits of integration (according to the graph1)

On the x axis: if y=2x and x+2y=1 then y=2x and y=(1-x)/2 ⇒ 2x=(1-x)/2 ⇒ 4x=1-x ⇒ 5x=1 ⇒ x=1/5; on the y axis y=0 and y=1/2

m=∫∫rho(x,y)dA (view the graph 2)

4 0
3 years ago
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