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Luden [163]
3 years ago
14

Need help with these questions

Mathematics
1 answer:
Eddi Din [679]3 years ago
7 0

Answer:

Area = 31.5 units²

Step-by-step explanation:

Area of the triangle = ½ × base × height

base = 9

height = 7

Substitute

Area = ½ × 9 × 7

Area = ½ × 63

Area = 31.5 units²

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The following set of linear equations 2x+2y=18 x+3y=17
NemiM [27]

Answer:

x = 5

y = 4

Step-by-step explanation:

1. 2x + 2y = 18

2. x + 3y = 17

Multiply the first equation by 1 and the second equation by 2 to eliminate x

We have

2x + 2y = 18

2x + 6y = 34

Subtract equation 2 from equation 1

-4y = -16

Divide both sides by -4 to isolate y

-4y/-4 = -16/-4

y = 4

Now substitute 4 for y in either equation to get x. Using equation 2 we have

x + 3y = 17

x + 3 x 4 = 17

x + 12 = 17

Subtract 12 from both sides

x + 12 - 12 = 17 - 12

x = 5

x = 5 and

y = 4

8 0
3 years ago
Please help :( <br><br> Find the volume of the composite figure shown.
Allushta [10]

Answer:

Ello, estoy aquí para ayudar, pero hablo español, con suerte, entenderás que lo estoy intentando.

56738w7421098548091672949123749279102!

Step-by-step explanation:

8 0
3 years ago
The radical form plz someone help
lapo4ka [179]

Answer:

it cannot be converted to radical form

Step-by-step explanation:

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3 years ago
The absolute value of negative eight minis twice a number
Murrr4er [49]
|-8|-2n=6n

The absolute value of a number is how far it is from a number line.
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A body oscillates with simple harmonic motion along the x-axis. its displacement varies with time according to the equation x(t)
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My graphing calculator says the acceleration at that time si 54.995 m/s.

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