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miv72 [106K]
2 years ago
13

Find c plissssssssssss

Mathematics
1 answer:
Rzqust [24]2 years ago
3 0

The value of c is equal to 7\sqrt{2}

Data:

  • Opposite = 7
  • Angle = 45 degrees
  • hypothenuse = c
<h3>Trigonometric Ratio</h3>

To solve this problem, we need to use trigonometric ratio SOHCAHTOA.

Since we have opposite and hypothenuse value, we can use sine angle for this.

sin \theta = \frac{opposite}{hypothenuse}

Let's substitute the values into the formula

sin45 = \frac{7}{c}\\ c = \frac{7}{sin 45} \\c = 7\sqrt{2}

The value of c is equal to 7\sqrt{2}

Learn more on trigonometric ratio here;

brainly.com/question/11967894

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Can anyone help me with the 7th and 8th question which I have taken a bad photo of?
Vsevolod [243]
<u>Question 7:

Define x :
</u>
Let the digit in the ones place be x.
The digit in the tens place is  x+2.

The sum of the digit and its reverse is 66

<u>Find x:</u>

10(x + 2) + x + 10x + (x + 2) = 66
10x  + 20 + x + 10x + x + 2 = 66
22x + 22 = 66
22x = 44
x = 2

<u>Find the number:</u>

The number in the ones place = x= 2
The number in the tens place = x = 2 + 2 = 4

Answer : The number is 42.

<u>Question 8:</u>

<u>Define x:</u>

Let the digit in the tens place be x.
The digit in the ones place is x+7.

The number  = 10x + x + 7 = 11x + 7

If the digit interchange,
the number = 10(x + 7) + x = 10x + 70 + x = 11x + 70

<u>Find x:
</u>
9(11x + 7) = 2(11x + 70)
99x + 63 = 22x + 140
99x - 22x = 140 - 63
77x = 77
x = 1

<u>Find the number:
</u>
x = 1
x + 7 = 1 + 7 = 8
So the number is 18

Answer: The number is 18.

7 0
3 years ago
WILL MARK BRAINLIEST HELP PLEASE
denis-greek [22]

Answer:

7.) m = 1/3 ; b = -2.5

8.) m = 2 ; b = 2

Step-by-step explanation:

For m, either do the rise over run method or use 2 points and do (y2-y1)/(x2-x1).

For b, just look at the y-intercept/where it crosses the y axis

I believe those are the right answers but not too sure because the numbers on the graph are a bit blurry so i just assumed it counted by ones.

3 0
3 years ago
A chemist is mixing one solution that is 32% sodium and another solution that is 12% sodium how many liters of each type should
Brut [27]
In order to solve the amount of each solution, we need to set up equations. We do as follows:

Let x = solution with 32% sodium
      y = solution with 12% sodium

Overall balance
x + y = 50

Component balance
.32x + .12y = 50(.20) =10

Solving simultaneously,

x = 20
y = 30

Hope this answers the question. Have a nice day.
6 0
3 years ago
I need two equations to use elimination but I don't know what equations to use.
lyudmila [28]
2x+3y=160
-2x+7y=25 I hope that helps!!
7 0
2 years ago
Read 2 more answers
Thế nào là hai góc đối đỉnh
Harlamova29_29 [7]

nào là hai doin dhn

??

8 0
2 years ago
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