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solniwko [45]
2 years ago
5

20 pts!!! HURRY What is the surface area of the pyramid? PLEASE HURRY

Mathematics
1 answer:
Viktor [21]2 years ago
8 0

Answer:

148.1

Step-by-step explanation:

I looked it up on a smart website that is certified to be the right answer. Trust me.

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*15 points easy question*
maw [93]

Answer:

\sqrt{13}

Step-by-step explanation:

We are given an isosceles triangle. We need to remember the important rule that the base angles are equal. In this question we need to find the value of 'x' using a perpendicular height of 3 and a base length of 4. In this question we can half the triangle in half to help us find the value of x. Also we need to use Pythagoras theorem to help us find 'x'. Pythagoras states that a² + b² = c² so we want to find the hypotenuse of the triangle. If we half the triangle we get 2 triangle both with a base length of 2 and a perpendicular height of 3 so,

⇒ State Pythagoras theorem

→ a² + b² = c²

⇒ Substitute in the values

→ 3² + 2² = c²

⇒ Simplify

→ 9 + 4 = c²

⇒ Simplify further

→ 13 = c²

⇒ Square root both sides to find the value of 'c'

→\sqrt{13}  =  c

The value of x is the square root of 13

8 0
3 years ago
Help me solve this and get marked branliest:
bazaltina [42]

Answer:

75°

Step-by-step explanation:

Let's find the size of x°

BCFE has four sides so the sum of its angles sizes is 360°.

● CBE + 110 + 110 + CFE = 360

CFE is equal to 65° since they have the same vertex

● CBE + 220 + 65 = 360

● CBE + 285 = 360

● CBE = 360-285

● CBE = 75

CBE and x° have the same size since they share the same vertex.so:

● x° = 75°

4 0
3 years ago
Read 2 more answers
Craig went out to a restaurant for dinner. He tipped 16% of his bill, which brought the sum of the dinner bill plus the tip to $
alexira [117]
$22.50

You can get this by dividing the new total by 116%, which is how much of the bill was paid. 
4 0
3 years ago
Susan went shopping to purchase new clothes. She
arlik [135]

Answer:

13.375

Step-by-step explanation:

you have to add 28 ± 17 = 45 ± 8.857 = 13.375

6 0
3 years ago
Solve for x <br> 8+4x=-16
saw5 [17]

Answer:

x = -6

Step-by-step explanation:

8 + 4x = -16

4x = -16 - 8

4x = -24

x = -24/4

x = -6

5 0
2 years ago
Read 2 more answers
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