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Dafna11 [192]
4 years ago
11

A and b are complementary angles and a and c are supplementary angles. If a=xº, (a) express b and c in terms of x

Mathematics
1 answer:
kirza4 [7]4 years ago
3 0

Step-by-step explanation:

a + b = 90

a + c = 180

a) If a = x, the. we can write

x + b = 90 and x + c = 180

or

b = 90 - x

c = 180 - x

b) c - b = (180 - x) - (90 - x)

= 180 - x - 90 + x

= 90

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The cost of every college is expected to increase 3.5%
lions [1.4K]

Answer:

$18,630

Step-by-step explanation:

The cost of every college is expected to increase 3.5% next year.

The cost to attend Westish College is currently $18000.

What is the expected cost to attend Westish College next year?

The increase in the cost for next year is calculated as:

3.5 % × Current cost

= 3.5% × $18,000

= $630.

The expected cost to attend Westish college next year=

$18,000 + $630

= $18,630

8 0
3 years ago
Someone smart help me please
mafiozo [28]
Pretty sure it is
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7 0
3 years ago
If a pyramid has a height of 10 in. and a base with an area of 90 in² , what is the volume of the pyramid?
harkovskaia [24]

Answer:

300 in³

Step-by-step explanation:

By definition, volume of a pyramid,

= (Base Area x height ) / 3

= (90 x 10) / 3

= 900/3

= 300 in³

3 0
4 years ago
BRAINLIEST <br> Solve for X. Round to the nearest tenth.
Kryger [21]

Step-by-step explanation:

2 things to remember for problems like this :

the sum of all angles in a triangle is always 180 degrees.

the law of sines :

a/sin(A) = b/sin(B) = c/sin(C) or upside-down (whatever fuss the situation better), with the sides being always opposite of the angles.

so, now for the given problems :

4.

x/sin(90) = 12/sin(29)

x/1 = x = 12/sin(29) = 24.75198408...

rounded x = 24.8

5.

the opposite angle of x is

180 - 90 - 16 = 74 degrees.

x/sin(74) = 37/sin(90) = 37

x = 37×sin(74) = 35.56668275...

rounded x = 35.6

6.

the opposite angle of x is

180 - 90 - 58 = 32 degrees.

x/sin(32) = 22/sin(58)

x = 22×sin(32)/sin(58) = 13.74712574...

rounded x = 13.7

7.

the opposite angle of 15 is

180 - 90 - 51 = 39 degrees.

x/sin(51) = 15/sin(39)

x = 15×sin(51)/sin(39) = 18.52345735...

rounded x = 18.5

4 0
3 years ago
Read 2 more answers
Write down the 5th term in the sequence given by t(n) = n^2 +2n
madam [21]
So it our equation would be t(5)=5^2+2(5)
25+10=35 :)
5 0
4 years ago
Read 2 more answers
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