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natka813 [3]
3 years ago
7

Solve for w, where w is a real number. √w+9=5

Mathematics
1 answer:
irga5000 [103]3 years ago
5 0
If w is real then we need ignore negative sign and consider it as a mod value. So the answer will be 2
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Find values for θ that make each statement true (show steps)
Ksju [112]

Answer:

Step-by-step explanation:

1. sinФ = cos 25

25 ° is in the between 0 and 90°

therefore it can simply represent

cosФ= sin (90-Ф) = sin (90 - 25) = sin 65

2. sin(Ф/3 + 10) = cos Ф

cos Ф = sin (90 -Ф)

sin(Ф/3 + 10) = cos Ф

sin(Ф/3 + 10) = cos Ф = sin(90-Ф)

Ф/3+10=90-Ф

10Ф+3/30 = 90-Ф

10Ф+3 = 30(90-Ф)

10Ф+3 = 2700-30Ф

10Ф+30Ф=2700-3

40Ф = 2697

Ф = 2697 / 40 = 67.425 ≅ 67.4°

4 0
3 years ago
Find the values of x and y?
lakkis [162]

Answer:x=20 y=70

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
On a timed session please help I have one more question after this.....
olya-2409 [2.1K]

The coffee shop used 52 pounds of Type A coffee.

Step-by-step explanation:

Cost of Type A coffee per pound = 5.25

Cost of Type B coffee per pound = 4.10

Total pounds used in blend = 142

Total cost = 642.00

Let,

x be the pounds of Type A coffee used

y be the pounds of Type B coffee used

According to given statement;

x+y=142      Eqn 1

5.25x+4.10y=642.00   Eqn 2

Multiplying Eqn 1 by 4.10

4.10(x+y=142)\\4.10x+4.10y=582.20\ \ \ Eqn\ 3

Subtracting Eqn 3 from Eqn 2

(5.25x+4.10y)-(4.10x+4.10y)=642.00-582.20\\5.25x+4.10y-4.10x-4.10y=59.80\\1.15x=59.80\\

Dividing both sides by 1.15

\frac{1.15x}{1.15}=\frac{59.80}{1.15}\\x=52\\

The coffee shop used 52 pounds of Type A coffee.

Keywords: linear equation, elimination method

Learn more about elimination method at:

  • brainly.com/question/10677255
  • brainly.com/question/10689103

#LearnwithBrainly

5 0
3 years ago
Hello, no rush, but I need to know the answer for 4(x-2+y)
bixtya [17]

Answer:

It's 4x - 8 + 4y

Step-by-step explanation:

4(x-2+y)

4 (x) = 4x

4 (2) = 8

4 (y) = 4y

4x - 8 + 4y

3 0
3 years ago
Which is one way to check 102÷6=17
posledela
D is the correct answer i think
5 0
2 years ago
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