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3 years ago

A and b are complementary angles. Za measures 44°. What is the measure of b?

Mathematics

2 answers:

Agata [3.3K]3 years ago

7 0

Answer:

Step-by-step explanation:

So angle b equals to 46 degrees

Complementary angles equal to 90 degrees when added together. So set the equation to 90.

44+x=90

Subtract 44 from both sides

x=46

katrin2010 [14]3 years ago

6 0

So angle b equals to 46 degrees

Complementary angles equal to 90 degrees when added together. So set the equation to 90.

44+x=90

Subtract 44 from both sides

x=46

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What is the constant of proportionality? 13 39 42 78

Nana76 [90]

The constant of proportionality is 13

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3 years ago

A series is defined by 5+9+13+17+.......+805 a. Find the number of terms of the series. b. Find the sum of the first 20 terms.

puteri [66]

Answer: the number of terms of the series is 201 numbers

the sum of the first 20 terms is 890

the number of terms of the series is $\frac{805-5}{4}+1=201$

the series have:

u1 = 5

d = 4

=> u(n) = 5 + 4.(n - 1)

=> u(20) = 5 + 19.4 = 81

so the sum of the first 20 terms is (81 + 5).20/2 = 890

( u1 is the first number of the series, d is the distance between front and rear numbers, u(n) is the overall term of the sequence, u(20) is the 20th of the series)

Step-by-step explanation:

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3 years ago

2(3) +5 What’s the answer

stepan [7]

Answer:

Step-by-step explanation:

Order of Operations: BPEMDAS

Step 1: Write expression

2(3) + 5

Step 2: Multiply

6 + 5

Step 3: Add

8 0

3 years ago

Read 2 more answers

Explain your answer

N76 [4]

x is equal to - 2/3 after collecting like terms

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3 years ago

Amanda spent $73 on shirts. Tee Shirts cost $9 and long sleeve shirts cost $11. IN she bought a total of 7, then how many of eac

pentagon [3]

Answer:

2 tee shirts

5 sleeves

Step-by-step explanation:

Let the number of shortsleeves be S and longsleeves L.

Total is 7

That is

L + S = 7

Total money spent is $73, while shorts cost 9 and longs 11

Hence,

9S + 11L = 73

We now have two equations we can solve simultaneously. From the first equation,

L = 7 - S

Putting this in equation 2

9s + 11(7 - S) = 73

9s + 77 - 11S = 73

2S = 4

S = 2

Since s = 2, then L = 5

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3 years ago