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kozerog [31]
2 years ago
6

4. In the diagram below, ZABD = (4x + 3)º and DBC = (7x-6)º.

Mathematics
1 answer:
blsea [12.9K]2 years ago
4 0

Answer:

Step-by-step explanation:

a) ∠ABD + ∠DBC = 90°

4x - 3 + 7x - 6 = 90

4x + 7x - 3 - 6 = 90

       11x -  9     = 90

              11x    = 90 + 9

              11x    = 99

                   x = 99/11

x = 9

∠ABD = 4*9 - 3 = 36 - 3 = 33

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PLEASE HELP ME WITH THIS QUESTION ASAP!!!!
svetlana [45]

Answer:

<h2>137°</h2>

Step-by-step explanation:

The pentagon RSTYZ is a regular polygon. Therefore all angles are congruent.

If m∠RST = 108°, then m∠STY = 108°.

We have the equation:

m∠UTY + m∠STY + m∠STU = 360°.

Substitute m∠STY = 108° and m∠UTY = 115°.

115° + 108° + m∠STU = 360°

223° + m∠STU = 360°          <em>subtract 223° from both sides</em>

m∠STU = 137°

3 0
3 years ago
Fill in the blank please ! I’m failing
Komok [63]

Answer:17.9

Step-by-step explanation:

4 0
3 years ago
haru rides his bike from his home for 30 minutes at a fast pace. He stops to rest for 20 minutes, and then continues riding in t
Bezzdna [24]

Using the given information and what we know about linear equations, we will find the sketch below.

<h3>How to sketch a graph?</h3>

Here we need to analyze each part separately.

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First, we know that he rides for 30 minutes at a given speed, this will be represented with an increasing linear function.

Then he stops for 20 minutes, this is represented with a horizontal line.

Finally, he returns the motion, but slower than before, so the slope of this line will be smaller than the first one.

So for 0 to 30 we have an increasing linear equation, then for 30 to 50 we have a constant horizontal line, then for 50 to 80 we have another increasing linear equation

The sketch can be seen below.

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6 0
3 years ago
Lena is asked to write an explicit formula for the graphed geometric sequence.
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Answer:

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Step-by-step explanation:

Given

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Required

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x --- f(x)

1 ---- 1

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The data under the x column are the domain of the function and in this case,  they are not needed;

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Hence;

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3 years ago
What is 35 divided by 4 long divison?
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