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Igoryamba
3 years ago
9

Identify the lateral area and surface area of a regular triangular pyramid with base edge length 14 cm and slant height 15 cm.

Mathematics
1 answer:
sattari [20]3 years ago
6 0
How did you get 315.
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Hey everyone! Please go sub to my YT channel! Its name is below with details. Channel Name: ItsJustMeMya Channel profile picture
dem82 [27]

Answer:

ok

Step-by-step explanation:

8 0
3 years ago
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2/3x=1/3 whats the awnser
alina1380 [7]

Answer:

1/2

Step-by-step explanation:

I think so im not sure tho so sorry if its incorrect

7 0
3 years ago
Read 2 more answers
Answer the equation
ivanzaharov [21]

Answer:

x = -2, y = -4

coordinate: (-2, -4)

Step-by-step explanation:

Given system of equations:

a) 4x - 7y = 20

b) x - 3y = 10

1. Make x the subject in the <em>second</em> equation:

⇒ x - 3y = 10 [add 3y to both sides]

⇒ x - 3y + 3y = 10 + 3y

⇒ x = 3y + 10

2. Substitute the given value of x into <em>first</em> equation:

⇒ 4x - 7y = 20

⇒ 4(3y + 10) - 7y = 20 [distribute 4 through the parentheses]

⇒12y + 40 - 7y = 20 [combine like terms]

⇒ 5y + 40 = 20 [subtract 40 from both sides]

⇒ 5y - 40 - 40 = 20 - 40

⇒ 5y = -20 [divide both sides by 5]

⇒ 5y ÷ 5 = -20 ÷ 5

⇒ y = -4

3. Find the value of x by substituting the given value of y into x = 3y + 10:

⇒ x = 3y + 10

⇒ x = 3(-4) + 10 [multiply]

⇒ x = -12 + 10 [add]

⇒ x = -2

4. Check your work:

<em>a) 4x - 7y = 20</em>

⇒ 4(-2) - 7(-4) = 20

⇒ -8 + 28 = 20

⇒ 20 = 20 ✔

<em>b) x - 3y = 10</em>

⇒ -2 - 3(-4) = 10

⇒ -2 + 12 = 10

⇒ 10 = 10 ✔

This system of equations has a solution at (-2, -4).

Learn more here:

brainly.com/question/27849342

brainly.com/question/27728118

4 0
1 year ago
Solve the equation.<br> d divided by 3 = 139<br> d =<br><br> (Type a whole number.)
wolverine [178]

Answer:

417

Step-by-step explanation:

HOPE THAT HELPED

7 0
3 years ago
Read 2 more answers
Match the pairs in the picture
OverLord2011 [107]

Answer: Y=-3tan3x is \pi /3

Y=6sin3x is 2\pi /3

Y=2cos2x/3 is 3\pi

Y=-2/3secx/5 is 10\pi


Step-by-step explanation:


4 0
3 years ago
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