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alexira [117]
3 years ago
10

Given: tanA= -square root 15 What is the value of tan (A-pi/4)?

Mathematics
2 answers:
Lelu [443]3 years ago
5 0

Answer:

D

Step-by-step explanation:

ANTONII [103]3 years ago
4 0

Answer:D

Step-by-step explanation:

edge2020

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Simplify.<br> (8 + 14m) + m<br> O<br> 8 + 15 m<br> 23 m<br> 9 + 14 m<br> 22 m
olganol [36]

Answer:

Hi there!

Your answer is:

A) 8+15m

Step-by-step explanation:

Since we can't do anything within the parentheses, they go away.

8+14m+m

Combine like terms

8+15m

Hope this helps

5 0
3 years ago
Which of the following expressions are equivalent (equal) to 3(2x - 7)
velikii [3]

Answer:

6x - 21

Step-by-step explanation:

3(2x - 7)

Use the Distribute Property of Multiplication by multiplying the number outside the parenthesis with the numbers inside.

3 × 2x = 6x

3 × -7 = -21

Combine:

6x - 21

Hope this helped.

3 0
3 years ago
Read 2 more answers
The base of a right pyramid is a regular hexagon with sides of length 12 m. The altitude is 6 m. Find the total surface area of
Eva8 [605]

Answer:

806.12 m

Step-by-step explanation:

<u>Step 1: Write the data</u>

<em>Side (s) = 12</em>

<em>Altitude (h) = 6</em>

<u>Step 2: Write the formula for surface area of right hexagonal pyramid</u>

<em>Area = 3√3/2*s² + 3*s*√(h²+3s²/4)</em>

<u>Step 3: Substitute values of 's' and 'h'</u>

<em>Area = 3√3/2*(12)² + 3*(12)*√[6²+3(12)²/4]</em>

Area = 806.12 m

Therefore, the total surface area of the pyramid is 806.12 m.

!!

4 0
2 years ago
The area of the triangle is 24 feet.
Aleksandr-060686 [28]
Does anybody know the answer 
4 0
3 years ago
hii i need help with a geometry problem. i'll mark you brainliest!! please please help i really need to solve this.
k0ka [10]

Answer:

∠ ABC = 81° , ∠ FEC = 90°

Step-by-step explanation:

Since AB ≅ BC then Δ ABC is isosceles.

The median BE is therefore

The angle bisector of ∠ ABC and

BE bisects AC at right angles.

Thus

∠ ABE = ∠ CBE = 40° 30' , then

∠ ABC = 2 × 40° 30' = 81°

Since BE is perpendicular to AC then

∠ FEC = 90°

8 0
3 years ago
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