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egoroff_w [7]
3 years ago
14

Câu 1: Cho tam giác MNP cân tại P thì:

Mathematics
1 answer:
rewona [7]3 years ago
7 0

Answer:

B. PM = NP

Step-by-step explanation:

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A stereo priced at $769 is on sale for 35 % off find the discount and the sale price
frozen [14]

$269.15 discount 499.85 sales price

Step-by-step explanation:

If the price is $769 it's off 35% you turn the percent into a decimal which is .35 then you multiply it by the price of $769. You then get $269.15 for the discount price and then you subtract the regular price $769 from the discount price which is $269.15. So you get $499.85 as your answer

7 0
4 years ago
Describe how the cosecant, secant and cotangent are related to the first three trigonometric functions learned.
saw5 [17]
\bf \underline{sin(\theta)}=\cfrac{1}{csc(\theta)}
\qquad 
% cosine
\underline{cos(\theta)}=\cfrac{1}{sec(\theta)}
\qquad 
% tangent
tan(\theta)=\cfrac{sin(\theta)}{cos(\theta)}
\\\\\\
% cotangent
csc(\theta)=\cfrac{1}{\underline{sin(\theta)}}
\qquad 
% secant
sec(\theta)=\cfrac{1}{\underline{cos(\theta)}}\qquad 
\begin{array}{llll}
cot(\theta)
\begin{cases}
\cfrac{cos(\theta)}{sin(\theta)}\\\\
\cfrac{1}{tan(\theta )}
\end{cases}
\end{array}
5 0
4 years ago
Read 2 more answers
3x+4y+6z=15<br>Solve for x.​
aalyn [17]

Answer:

<h2> </h2><h2>x = 5 -  \frac{4}{3} y - 2z</h2>

Step-by-step explanation:

<h3><u>Question</u><u>:</u><u>-</u></h3>
  • To solve for x

<h3><u>Equation</u><u>:</u><u>-</u></h3>
  • 3x + 4y + 6z = 15

<h3><u>Solution</u><u>:</u><u>-</u></h3>

=> 3x + 4y + 6z = 15

  • <em>[</em><em>On</em><em> </em><em>subtracting</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>with</em><em> </em><em>4y</em><em>]</em>

=> 3x + 4y + 6z - 4y = 15 - 4y

  • <em>[</em><em>On</em><em> </em><em>Simplification</em><em>]</em>

=> 3x + 6z = 15 - 4y

  • <em>[</em><em>On</em><em> </em><em>subtracting</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>with</em><em> </em><em>6z</em><em>]</em>

=> 3x + 6z - 6z = 15 - 4y - 6z

  • <em>[</em><em>On</em><em> </em><em>Simplification</em><em>]</em>

=> 3x = 15 - 4y - 6z

  • <em>[</em><em>On</em><em> </em><em>dividing</em><em> </em><em>both</em><em> </em><em>sides</em><em> </em><em>with</em><em> </em><em>3</em><em>]</em>

=  >  \frac{3x}{3}  =  \frac{15 - 4y - 6z}{3}

  • <em>[</em><em>On</em><em> </em><em>Simplification</em><em>]</em>

=  > x = 5 -  \frac{4}{3} y - 2z \: (ans)

3 0
2 years ago
Read 2 more answers
Pablo pays $150 for 5 nights at a hotel.
blagie [28]
Where’s the rest of the question?
7 0
3 years ago
Read 2 more answers
Convert 0.0078 from standard form to scientific notation.
meriva
Hello!

<span>To transform the normal, standard numbering to centric notation, simply remove the zeros prior to the point, and raise the remainder to the number of zeros in their negative form. 0.0078 = 7.8 * 10 -3.
 

Hugs!</span>

4 0
4 years ago
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