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notsponge [240]
3 years ago
14

We have just moved to geometry. Any help? This is just practice as well

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
8 0

Answer:

rotation of 270 counterclock wise

Step-by-step explanation:

Since none of the other ones are correct and man i miss geometry i'm in Ap calc and i don't recommend haha.

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Solve the equation by using square roots. 2 x 2 − 9 = 11
VashaNatasha [74]

Answer:

x = ± \sqrt{10}

Step-by-step explanation:

Given

2x² - 9 = 11 ( add 9 to both sides )

2x² = 20 ( divide both sides by 2 )

x² = 10 ( take the square root of both sides )

x = ± \sqrt{10} ← exact solutions

3 0
3 years ago
What is the value of T?
Cerrena [4.2K]

Answer:

The value of T is 55°

Step-by-step explanation:

Using the theorem of parallel and equality,the angle of unknown angle equals to opposite one.

Or at least if you noticed,that angle is perpendicular,then 35+90=125;

180-125=55°

6 0
3 years ago
I need help with this and I don’t understand it
DochEvi [55]

Lets break it down:

The bottom right picture shows an approximation of what 1 wingspan length is, and the goal is to <u>estimate </u>lengths.

A. 1 wing is approx. 7 meters. To find the wingspan of the plane just do 7 meters multiplied by 2 = 14 meters (approx wingspan). Now we convert (remember, to the nearest foot!)

14 meters = 45.93 ft

Round it to the nearest foot = 46 ft is your approx. wingspan.

B. The height. This is one is a little tricky! Lets try to use what we know:

1 wing is approx. 7 meters. Since these are approximations, lets say half of one wing is <u>roughly</u> the size of the height of the plane. Since these are approximations I'd say 4 meters.

4 meters = 13 ft (rounded).

<em>I checked online for the specs of the Lysander and the exact height is 14 ft 6 in and wingspan is 50 ft. </em>This means our approximations were correct!

C. The length would be 10 ft + 7 meters

10 ft = 3 meters (rounded)

3 meters + 7 meters = 10 meters

<em>(converting to meters then to ft at the end because it's less messy)</em>

10 meters = 33 ft (rouned)

length of the Lysander is approx. 33 ft!

(the real length is 30 ft 6 in)

This means our approximations were correct once more.

Hopefully this helped you and made your night/day easier.



5 0
3 years ago
If a • b &gt; 0 and a &lt; 0, what must be true about b?
Musya8 [376]

Answer:

It is a negitive number

Step-by-step explanation:

8 0
3 years ago
Find the value of x.
Paul [167]

Hello!

As we are looking for the opposite side and hypotenuse, we will use the sine.

sin30=1/2

This gives us the equation below.

1/2= 5/x

1/2x=5

x=10

Therefore, x=10.

I hope this helps!

6 0
2 years ago
Read 2 more answers
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