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shusha [124]
3 years ago
14

How can you solve this ​

Mathematics
1 answer:
natima [27]3 years ago
5 0

Answer:

the answer is 10

Step-by-step explanation:

2x^2-y turns into

2*3^2-8  

   \ /

2*9-8

\ /

18-8

 \ /

 10

hope this helped if it did reply and do forget to rate thank you

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I kinda forgot how to do things like 2 divided by 5. plz help​
pentagon [3]

Answer:

the answer 0.4

Step-by-step explanation;

4 0
3 years ago
Calculate the area of triangle ABC with altitude CD, given A (6,0) B(1,5) C (2,0) and D (4,2)
Elina [12.6K]
So hmm check the picture below

the height or altitude is CD
and the base is AB

how long are those? well \bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
A&({{ 6}}\quad ,&{{ 0}})\quad 
%  (c,d)
B&({{ 1}}\quad ,&{{ 5}})\\\\
C&({{ 2}}\quad ,&{{ 0}})\quad 
%  (c,d)
D&({{ 4}}\quad ,&{{ 2}})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
AB=\sqrt{(1-6)^2+(5-0)^2}\qquad \qquad CD=\sqrt{(4-2)^2+(2-0)^2}

7 0
3 years ago
Read 2 more answers
17. El precio de los terrenos en Lima es proporcional al área e inversamente proporcional a su distancia con respecto al centro
grin007 [14]

Answer:

375000

Step-by-step explanation:

We have that in this case the following proportion would be fulfilled:

Price * Distance / area

Now, we have that for a distance of 45 km and an area of 900 m ^ 2 the price is 250,000, now for a distance of 40 km but with an area of 1,200 m ^ 2, how would the price be, we replace:

250000 * 45/900 = P * 40/1200

12500 * 1200/40 = P

P = 375000

Which means that for these conditions the price is 375000.

3 0
3 years ago
Answer in standard form PLEASE.
matrenka [14]

0.9 x 10^4

Let’s break this down into steps.

So to start off with, you need to do 4.5/5 which = 0.9.

Now we can deal with the indices. 10^-3 / 10^-7 means we have to subtract them. Therefore, -3 - -7 = 4. Altogether, we have 0.9 x 10^4

The question states we should leave our answer in standard form.

So our answer is 0.9 x 10^4.
8 0
3 years ago
Help me ?!?! Pleaseee
Mars2501 [29]

Answer:

C.

Step-by-step explanation:

Hope this helps! :)

6 0
3 years ago
Read 2 more answers
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