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igomit [66]
3 years ago
15

What is angle 1 if 1 and 2 are complementary

Mathematics
1 answer:
steposvetlana [31]3 years ago
4 0

Answer:

angle 1 = 84

angle 2 = 6

Step-by-step explanation:

complementary angles add up to 90 degrees.

angle 1 + angle 2 = 90

(4x + 60) + x = 90

5x + 60 = 90

5x = 30

x = 6

angle 1 = 4x + 60 = 4(6) + 60 = 84

angle 2 = x = 6

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50 points and brainiest of correct.
mote1985 [20]

Answer:

640 pennies

Step-by-step explanation:

3/4= 6/8 so...

6-3=3

240/3= 80

80x8=640

5 0
3 years ago
Read 2 more answers
I’ll give a brainlist questions in the attachments
FinnZ [79.3K]

Answer:

38.1

Step-by-step explanation:

36.5 + 37.7 + 38.2 + 38.4 +38.9 + 39.1 = 228.8

228.8 ÷ 6 = 38.1

5 0
3 years ago
Prove the identity.<br> secx- cos x = sin x tan x
Mandarinka [93]

Answer:

LHS = RHS

Step-by-step explanation:

\sec(x)  -  \cos(x)  \\  =  \frac{1}{ \cos(x) }  -  \cos(x)  \\  =  \frac{1 -  { \cos(x) }^{2} }{ \cos(x) }

Since

{ \sin(x) }^{2}  +  { \cos(x) }^{2}  = 1 \\ 1 -  { \cos(x) }^{2}  =  { \sin(x) }^{2}

Therefore,

\frac{1 -  \ { \cos(x) }^{2} }{ \cos(x) }   \\ =  \frac{  { \sin(x) }^{2} }{ \cos(x) }  \\  =   \frac{ \sin(x )  \times  \sin(x) }{ \cos(x) }  \\  =  \sin(x)  \tan(x)

Therefore LHS = RHS

8 0
4 years ago
Delta furnishings received an invoice dated may 10 for a shipment of goods received june 21. The invoice was for a $8400.00 less
djyliett [7]

Answer:

The right solution is:

(a) $1,940

(b) $2,813

Step-by-step explanation:

Given:

Invoice amount

= $8,400

Discount 1

= 33.33%

Discount 2

= 12.5%

So,

The net payable amount will be:

= 8400\times  [1 - \frac{100}{300} ]\times [1 - \frac{12.5}{100} ]

= 8400\times \frac{2}{3}\times 0.875

= 4900 ($)

Now,

(a)

Amount paid will be:

= 2000\times 0.97

= 1940 ($)

Balance still to be paid will be:

= 4900-2000

= 2900 ($)

(b)

Amount paid will be:

= (4900- 2000)\times 0.97

= 2900\times 0.97

= 2813 ($)

Balance still to be paid will be:

= 2000 ($)

Thus the above solution is the appropriate one.

6 0
3 years ago
Which of the following expressions represents the area, in square meters, of the regular decagon (10-sided polygon) with 3.25 me
raketka [301]

Answer:

A = P * a / 2

A = 81.25

Step-by-step explanation:

We have that there is a corresponding formula for a regular decagon, which depends on the apothem and the perimeter, it is the following:

A = P * a / 2

In this case, the perimeter is the sum of all the sides, that is, 10 sides, therefore:

P = 10 * 3.25

P = 32.5 meters

We replace:

A = 32.5 * 5/2

A = 81.25

Which means that for that regular decagon, the area is 81.25 square meters.

3 0
3 years ago
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