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Blizzard [7]
4 years ago
12

Please help picture shown

Mathematics
1 answer:
Mrac [35]4 years ago
8 0
2y2+11y-10 is the awnser
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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
4 years ago
6 is what percent of 9?
mario62 [17]

Answer:

66.6666666666666666%

6 0
3 years ago
Read 2 more answers
What is the discriminant of the polynomial below 4x^2-20x +25
svetlana [45]

Answer:

The discriminant D=0

Step-by-step explanation:

For the duadratic polynomial ax^2+bx+c the discriminant is

D=b^2-4ac.

In your case, for the polynomial 4x^2-20x+25,

  • a=4;
  • b=-20;
  • c=25;
  • D=(-20)^2-4\cdot 4\cdot 25=400-400=0.
5 0
3 years ago
Why can’t one of the names be PNM, or MPN for the plane? But MNP can? What’s the difference, and why?
Savatey [412]

The names PNM and MPN are perfectly valid. The order of the letters doesn't matter. In fact, there are 6 ways to name this plane if we just use the 3 letters. If we include "plane Z", then there are 7 total ways to name the plane.

For some reason, your teacher wants P to be the third letter as s/he mentioned MNP and NMP. But again, the order doesn't matter.

3 0
3 years ago
What is the equation of this line in slope-intercept form?
Anna11 [10]

Answer:

<em>y = -3x + 2</em>

Step-by-step explanation:

From the graph, you see the line intersects the y-axis at y = 2, so the y-intercept is b = 2.

Now we need the slope. We need to find the number of vertical and horizontal units to go from one point to the other. Starting at point (-1, 5), go down 6 units and then go right 2 units. The change in y is -6. The change in x is 2. slope = m = (change in y)/(change in x) = -6/2 = -3.

m = -3; b = 2

y = mx + b

y = -3x + 2

4 0
3 years ago
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