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Effectus [21]
2 years ago
11

What is a equation for 40% of x is 35.

Mathematics
1 answer:
Brilliant_brown [7]2 years ago
6 0
Bestie i don’t know...
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Look at the right triangle ABC:
prisoha [69]

Answer:

The first incorrect justification is in step 2.

Step-by-step explanation:

<u>Step 2</u>. BC2 = AC • DC  

2. BC ÷ DC = BC ÷ AC because triangle ABC is similar to triangle BDC

It's supposed to be AC ÷ BC not BC ÷ AC.

8 0
3 years ago
The slope of two lines are 5/6 and 2/p. determine the value of p that will make the lines
Anni [7]
Parallel:  the lines have = slopes.  We thus need 5/6 to equal 2/p.  then 5p must equal 12, and p = 12/5.   (answer)

Check:  Is 5/6 = 2 / (12/5)?  YES

Perp.:  The lines have slopes that are negative reciprocals of one another.

Then -6/5 = 2/p,  or

 -6      2
---- = ----
  5      p             Thus, -6p = 10, and p = -5/3   (answer)
7 0
3 years ago
Read 2 more answers
Find MN to the nearest tenth?<br><br> A. 11.34<br> B. 16.1<br> C. 39.6<br> D. 23.8
Nana76 [90]

As the question say this problem is a practice of the law of cosines!

The law of cosine: c^2=a^2+b^2-2ab*cos*c for any side a, b and c

The law can also be written as c=sqrt(a^2+b^2-2abcosc)

Now use this formula!(note cos 100 degrees is about 0.8623)

c=sqrt(15^2+16^2-2*15*16*cos100)

solving this we can MN is about 23.75

Round this to the nearest tenths now!

We get 23.8!

Thus the answer is D

5 0
2 years ago
Find the length of side x in simplest radical form with a rational denominator.
Klio2033 [76]

Answer:

x = \frac{\sqrt{6}}{2}

Step-by-step explanation:

Reference angle = 45°

Opposite side = x

Hypotenuse = √3

Use the following trigonometric ratios formula to find x:

sin(\theta) = \frac{opp}{hyp}

Plug in the values

sin(45) = \frac{x}{\sqrt{3}}

Multiply both sides by √3

\sqrt{3}*sin(45) = x

\sqrt{3}*\frac{\sqrt{2}}{2} = x

\frac{\sqrt{3*2}}{2} = x

\frac{\sqrt{6}}{2} = x

6 0
3 years ago
A yogurt costs 55p how many yogurts can be brought for six pounds?
anyanavicka [17]

Answer: Well if one pound of yogurt cost 55 (cents)


Step-by-step explanation:

Two yogurts cost $1.10

Three yogurts cost $1.65

Four yogurts cost $2.20

Five yogurts cost $2.75

And finally...

Six yogurts cost $3.30



Hope this helps! :)


6 0
3 years ago
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