All categories

3 years ago

Please please help me

Mathematics

1 answer:

Lunna [17]3 years ago

6 0

Answer:

x = 2 $\sqrt{13}$

Step-by-step explanation:

Altitude - on - Hypotenuse theorem

An altitude drawn to the hypotenuse of a right triangle, then

x² = 4 × (4 + 9) = 4 × 13 = 52 ( take square root of both sides )

x = $\sqrt{52}$

= $\sqrt{4(13)}$ = $\sqrt{4}$ × $\sqrt{13}$ = 2 $\sqrt{13}$

You might be interested in

Formula for finding the line of symmetry of a quadratic function?

padilas [110]

It is the line of symmetry of a parabola and divides a parabola into two equal halves that are reflections of each other about the line of symmetry. It intersects a parabola at its vertex. It is a vertical line with the equation of x = -b/2a.

6 0

3 years ago

Read 2 more answers

Please answer this math question, thank you!

scZoUnD [109]

The answer is A because it is quartile 1 of 4. There are 4 quartiles so logially 1 out of 4 is 25%. Hope this helps!

7 0

3 years ago

Find the x in the given triangle and at last do the proof...please help

viva [34]

Answer:

x = 42.67

Step-by-step explanation:

5 0

2 years ago

Which is the better price- 17% off $35 or 12% off $32?Explain

butalik [34]

Despite having a lower percentage, the one with 12% off manages to have a better price in the long run do the starting price.

5 0

3 years ago

You pick a card at random. Without putting the first card back, you

Inga [223]

First, we need the probability of picking an odd number.

There are 5 cards in total, and 3 odd cards (3, 5, and 7).

That means that the probability that we'll draw an odd card would be $\frac{3}{5}$ .

Then, we have 4 cards left, and 2 even cards (4 and 6), meaning that the probability that we draw an even card will be $\frac{2}{4}$ or $\frac{1}{2}$ .

To find the probability that these would happen in consecutive draws, we just multiply the probabilities together.

$\frac{3}{5}*\frac{1}{2}=\frac{3}{10}$ or 0.3.

To convert this into a percentage, we multiply the decimal by 100.

$0.3*100=30$ .

So the probability of picking an odd number and then picking an even number is 30%.

Hope this helps!

8 0

3 years ago