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ella [17]
2 years ago
15

A

Mathematics
1 answer:
ludmilkaskok [199]2 years ago
6 0

Answer:

25

Step-by-step explanation:

ABC is a right angle so ABD and DBC are <em>complementary angles</em> and their sum is equal to 90:

x + 55 = 90 subtract 55 from both sides

x = 25

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Find the whole number equal to the fraction below. Enter your answer in the<br> space provided.
zepelin [54]

Answer:

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6/2 ÷ 2/2 = 3/1

3 ÷ 1 = 3

Answer: 3

#CarryOnLearning

4 0
2 years ago
Will give you brain ok big brain
nekit [7.7K]

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first one

Step-by-step explanation:

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5 0
3 years ago
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WILL MARK BRAINLIEST <br><br> What is the value of x? <br><br> 10 <br> 15 <br> 30 <br> 45
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9) Let<br> X-2, x, x+3 <br> be the first 3 terms of a geometric sequence. FInd the value of x..
Reil [10]
Hello,

Let's r the ration

We suppose x ≠0

x=r*(x-2)==>r=x/(x-2)

x+3=r*x==> (x+3)/x=x/(x-2)==>(x+3)(x-2)=x²
==>x²+3x-2x-6=x² ==>x-6=0==>x=6

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x=6
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7 0
3 years ago
In a right triangle with acute angle of measure theta, sintheta=1 /2. What is the value of costhetatheta? Draw a diagram as part
Stells [14]

Answer:

0.866

Step-by-step explanation:

By definition

sin \theta = \frac{Opposite}{Hypotenuse}

cos \theta = \frac{Adjacent}{Hypotenuse}

We know that sin \theta = 0.5. Inverse of sine is arcsin, so, angle \theta is computed as

\theta=arcsin(0.5)=30

Therefore, cosine of \theta is  

cos (30°) = 0.866

3 0
4 years ago
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