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saw5 [17]
2 years ago
10

Find the measure of angle A

Mathematics
1 answer:
Gre4nikov [31]2 years ago
7 0

Answer:

21 degrees

Step-by-step explanation:

Triangles have a total angle of 180 degrees.

This makes our equation:

3x+3+4x+135=180

Subtract 135 from both sides and combine like terms

7x + 3 = 45

Subtract 3 from both sides

7x = 42

Divide both sides by 7

x = 6

Plugging the number in:

3x + 3 =

3(6) + 3 =

21

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Mhanifa please help! I will mark brainliest
suter [353]

Answer:

<u>Use Pythagorean:</u>

  • a² + b² = c²
<h3>#1</h3>
  • x² = 13² - 5²
  • x² = 144
  • x = √144
  • x = 12
<h3>#2</h3>
  • x² = 7² + 4²
  • x² = 65
  • x = √65
  • Option D
<h3>#3</h3>
  • x² = 10² - 6²
  • x² = 36
  • x = √36
  • x = 6
3 0
3 years ago
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Alexus [3.1K]

Answer:

Step-by-step explanation:

a

5 0
2 years ago
Read 2 more answers
Is 9 a factor of 54x + 63​
Zolol [24]

Answer:

yes

Step-by-step explanation:

It is because 9 divides into 54 and 63

7 0
2 years ago
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Need help to write equations for 5, 6 &amp; 7
Nutka1998 [239]
5)
The x-values go up by 1: -2, -1, 0, 1, 2
The y values are always 3 times the previous value.
This is an exponential function.

y = a(b)^x

We need to find a and b.
Look at x = 0.
For x = 0, y = 4.

y = a(b)^x

4 = a(b)^0

Since b^0 = 1, this simplifies to

4 = a

Now we know a = 4. We have

y = 4(b)^x

Look at x = 1. For x = 1, y = 12.

12 = 4(b)^1

12 = 4b

b = 3

Now that we know a and b, we can write the function.

y = 4(3)^x

Now that you have the function written out, notice the following.
In the exponential equation we found, the number raised to x
is the number you multiply each y value to get the next y value.
In this case, each y value is 3 times the previous one, so you have 3^x.
The way you find "a" in the exponential equation is to look at the y-coordinate
when x = 0. When x = 0, b^x is 1, so b^x drops out, and you get "a" equal to
the y-value. In this case, when x = 0, y = 4, so "a" is 4.
With b = 3, and a = 4, you can quickly write:
y = 4(3)^x.
7 0
3 years ago
Please help ASAP !! :)
Mila [183]

Answer:

  1. temperature is decreasing as time passes
  2. x-axis
  3. hot drink temperature (°C)

Step-by-step explanation:

1. Each value of temperature is lower than the one previous, so we can say the temperature is decreasing. We also notice that the rate of decrease is getting smaller, possibly because the temperature is approaching a horizontal asymptote.

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2. The horizontal axis, where temperature is plotted, is conventionally called the x-axis.

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3. The label on the vertical axis is "temperature" and the graph title is "cooling a hot drink ...", so we presume the dependent variable is the temperature of a hot drink.

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3 years ago
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