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olya-2409 [2.1K]
3 years ago
13

Find the value of g(7) for the function below. g(x) = 3x − 3 A. 3.33 B. 21 C. 18 D. 24

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
6 0

Answer:

C. 18

Step-by-step explanation:

g(x) = 3x − 3

Let x = 7

g(7) = 3(7) -3

      = 21-3

      = 18

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Describe the symmetry of these functions
Oduvanchick [21]
If it was line symmetry it would need to repeat the same shape twice, which the first follows but the second doesn’t.
if it was rotational, you would need to be able to take the shape in the top right and rotate it counterclockwise or clockwise to get the shape that locks in place. that doesn’t follow that.
both line and rotational symmetry is incorrect because the first example would need to lock up inside the right side of that example.

the answer is C
5 0
2 years ago
Read 2 more answers
A blimp can be seen flying at an altitude of 5500 feet above a motor speedway during a race. The slanted distance directly to th
Vladimir [108]

Answer:

The expression of h as function of x is   h = \sqrt{(d + 5500) (d - 5500)}

Step-by-step explanation:

Given as :

The distance of blimp  (AB) = 5500 feet

The slanted distance to the pagoda (BC) = d feet

The horizontal distance (AC) = h

Let the angle made between slanted distance and horizontal distance be Ф

So , cos Ф = \frac{AC}{BC} = \frac{h}{d}

And sin Ф =  \frac{AB}{BC} = \frac{5500}{d}

∵, cos²Ф = 1 - sin²Ф

So, (\frac{h}{d})^{2} = 1 - (\frac{5500}{d})^{2}

Or, (\frac{h}{d})^{2} = (\frac{d^{2}- 5500^{2}}{d^{2}})

Or,                                     h² = d² - 5500²

∴                                        h = \sqrt{d^{2}- 5500^{2}}

Or,                                     h = \sqrt{(d + 5500) (d - 5500)}

Hence The expression of h as function of x is   h = \sqrt{(d + 5500) (d - 5500)}     Answer

3 0
3 years ago
Answer with proper units too!
EastWind [94]

Answer:

Step-by-step explanation:

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 area = 10 * 4 = 40 in squared

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perimeter = 2 * (5 + 10) = 2 * 15 = 30in

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area = 1/2 * 21 * 8 = 84 cm squared

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perimeter= 10cm + 17cm + 21cm = 48cm

3.  area of trapezium = 1/2 * (a+b) * h

 area = 1/2 * (6+12) * 4 = 36ft squared

 perimeter = sum of outer perimeters

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3 0
3 years ago
How many multiples of 5 are there between 81 and 358?
likoan [24]
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3 0
3 years ago
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Find the missing angle.
Sphinxa [80]

Answer:

m\angle XYV=135^{\circ}

Step-by-step explanation:

Notice that m\angle XYV=m\angle XYW+m\angle VYW.

The diagram already marks m\angle VYW=80^{\circ}, so we just need to find m\angle XYW.

\angle TYU and \angle XYW are vertical angles, which means they are equal in measure.

Therefore,

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Since there are 180^{\circ} on each side of a line, we have the following equation:

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Plugging in x=8, we have:

m\angle XYW=6(8)+7=55^{\circ}.

Therefore,

m\angle XYV=55^{\circ}+80^{\circ},\\m\angle XYV=\fbox{$135^{\circ}$}.

5 0
3 years ago
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