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ryzh [129]
3 years ago
14

Solve the following equation algebraically:

Mathematics
1 answer:
Likurg_2 [28]3 years ago
4 0

Answer:

c.  x = \pm 7

Step-by-step explanation:

2x^2 = 98

x^2 = 49

x = \pm\sqrt{49}

x = \pm 7

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You purchased concentrated cleaner that must be diluted (watered down)
abruzzese [7]

Answer:

The volume of the concentrated 80 gallons mixture is 20 gallons

The volume of water in the 80 gallons mixture is 60 gallons

Step-by-step explanation:

The given parameters are;

The content of Container A = The cleaner

The concentration of the cleaner = 20% solution

The content of Container B = Pure water

The concentration of the desired solution = 5%

The volume of the required solution = 80 gallons

Let x represent the volume of the concentrated solution and y represent the volume of water in the 80 gallons mixture

Therefore, we have;

20/100 × x + y×0 = 5/100×80

x + y = 80

y = 80 - x

20/100 × x + (80 - x)×0 = 5/100×80

0.2·x = 4

x = 4/0.2 = 20

x = 20 gallons

y = 80 - x = 80 - 20 = 60

y = 60 gallons

The volume of the concentrated solution (80 gallons mixture) = x = 20 gallons

The volume of water in the 80 gallons mixture = y = 60 gallons.

8 0
3 years ago
The volume of a storage tank is 1695.6 m3. The radius is 6m. How tall is the storage<br> tank?
Andreas93 [3]

Answer:

the storage tank is a cylinder.

The formule to calculate the volume is:

v =\pi{r}^{2}  \times h

h = v \div \pi {r}^{2}

h = 1695.6 \div 36 \times \pi = 14.992

7 0
3 years ago
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Please help I’ll mark you as brainliest if correct
laila [671]

Answer:

the answer is A. because a 1/2 inch is 2 feet there is about 2 and 1/2 of an inch so if you add that, that will be 9 feet

Step-by-step explanation:

6 0
3 years ago
What are the correct justifications , listed in proper order?
Sergio039 [100]

Answer:

4 5 6 7

Step-by-step explanation:

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The function g(x) is defined as g(x)=-2x+3x the value of g(-3)is
Helga [31]

Answer:

-3

Step-by-step explanation:

g(-3) = -2x+3x

-2(-3) +3(-3)

6+-9 = -3

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hope this helps :)

5 0
2 years ago
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