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Dovator [93]
3 years ago
7

What is the value of X in this triangle?

Mathematics
1 answer:
Gennadij [26K]3 years ago
5 0

Answer:

x = 3

Step-by-step explanation:

An equilateral ∆ has equal side lengths and all its angles are also equal to each other, which are 60° each.

The ∆ given has equal side lengths. Therefore it is an equilateral ∆ having equal angles, each would measure 60°.

Thus:

(25x - 15) = 60°

Solve for x

25x - 15 = 60

Add 16 to both sides

25x - 15 + 15 = 60 + 15

25x = 75

Divide both sides by 25

25x/25 = 75/25

x = 3

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Principal = 5 3 0 0 =5300equals, 5300 rupees Annual rate of interest = 6 . 5 % =6.5%equals, 6, point, 5, percent Total amount =
creativ13 [48]

The formula is

A=p (1+r)^t

A future value 6678

P present value 5300

R interest rate 0.065

T time?

6678=5300 (1+0.065)^t

6678/5300=(1+0.065)^t

Take the log for both sides

Log (6678/5300)=t×log (1+0.065)

Divide both sides by log (1+0.065)

T=(log(6,678÷5,300)÷log(1+0.065))

T=3.7 years


Hope it helps!

4 0
3 years ago
Find the perimeter and area of a rectangle of cardboard measuring 17.8 cm by 13.4 cm​
klasskru [66]

Step-by-step explanation:

perimeter \: of \: rectangle \\  = 2(17.8 + 13.4) \\  = 2 \times 31.2 \\  = 62.4 \: cm \\  \\ area \: of \: rectangle \\  =17.8 \times 13.4 \\  = 238.52 \:  {cm}^{2}  \\

8 0
3 years ago
Read 2 more answers
If f(x) = 8 -3 and g(x) = 3x2 + x-6, find (f + g)(x).
Marizza181 [45]

Answer:

D

Step-by-step explanation:

(f+g)(x)   basically means to "ADD" f(x) and g(x).

We have

f(x)=\frac{x}{2}-3

and

g(x)=3x^2+x-6

Now we simply add these two, adding like terms as shown below (and simplify):

(f+g)(x)=f(x)+g(x)\\=(\frac{x}{2}-3)+(3x^2+x-6)\\=3x^2+\frac{1}{2}x+x-3-6\\=3x^2+\frac{3}{2}x-9

Correct answer is D

3 0
3 years ago
LITTLE HELP HERE PEOPLE BTW IF UR RIGHT BRAINLIST IT IS........
Westkost [7]

The  formula for the total surface area of a right prism is T. S. A. =ph+2B where p represents the perimeter of the base, h the height of the prism and B the area of the base, I hope this helps.

God bless :)

4 0
3 years ago
Read 2 more answers
In a naval engagement, one-third of the fleet was captured, one-sixth was sunk, and two ships were destroyed by fire. One-sevent
Otrada [13]

Answer:

60 ships.

Step-by-step explanation:

Let the total number of ships in the naval fleet be represented by x

One-third of the fleet was captured = 1/3x

One-sixth was sunk = 1/6x

Two ships were destroyed by fire = 2

Let surviving ships be represented by y

One-seventh of the surviving ships were lost in a storm after the battle = 1/7y

Finally, the twenty-four remaining ships sailed home

The 24 remaining ships that sailed home =

y - 1/7y = 6/7y of the surviving fleet sailed home.

Hence

24 = 6/7y

24 = 6y/7

24 × 7/ 6

y = 168/6

y = 28

Therefore, total number of ships that survived is 28.

Surviving ships lost in the storm = 1/7y = 1/7 × 28 = 4

Total number of ships in the fleet(x) =

x = 1/3x + 1/6x + 2 + 28

Collect like terms

x - (1/3x + 1/6x) = 30

x - (1/2x) = 30

1/2x = 30

x = 30 ÷ 1/2

x = 30 × 2

x = 60

Therefore, ships that were in the fleet before the engagement were 60 ships.

3 0
3 years ago
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