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Elina [12.6K]
3 years ago
10

A plane traveled 1100 miles each way to Cairo and back. The trip was with the wind. It took 11 hours. The trip back was into the

wind. The trip back took 22 hours. Find the speed of the plane in still air and the speed of the wind
Mathematics
2 answers:
GuDViN [60]3 years ago
5 0

Answer:

Hehe did did dodndosnsod fofmfomdixnsis

Step-by-step explanation:

Nsisndidndisnsidnsi293883 ownsie

pshichka [43]3 years ago
3 0

Answer:

the speed of the wind is 11 and the speed of the plane at still air is 2

i think      

Step-by-step explanation:

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Answer this please !
SpyIntel [72]

Answer:

6

Step-by-step explanation:

\frac{y}{2} =x^{2} -7

\frac{a}{2} =2^{2} -7

\frac{a}{2} =-3

a=-6

\frac{b}{2} =1^{2} -7

\frac{b}{2} =-6

b=-12

From the calculations above, we learn that line l and the curve intersect at (2, -6) and (1, -12). Next, we will set up a system of linear equations to solve for the slope and the y-intercept of line l.

-6=2m+b        

-12=m+b

-24=2m+2b

18=-b

b=-18

-12=m-18

m=6

Therefore, the slope of line l is 6.

3 0
2 years ago
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A medical researcher designs a drug to treat high blood pressure. She believes that people of different genders may respond diff
ELEN [110]

Answer:

hello!

Step-by-step explanation:

I say u can go for option B

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5 0
3 years ago
The radius of the circle whose equation is (x-3)^2 + (y+1)^2 = 16 is
Firdavs [7]

Answer:

4

Step-by-step explanation:

The general equation of a circle with center (a, b) and radius r is given by the equation;

(x-a)^{2}+(y-b)^{2}=r^{2}

The constant in the right hand side of the equation is simply the square of the radius;

We have been given the following equation;

(x-3)^2 + (y+1)^2 = 16

Comparing this with the general equation above;

r^{2}=16\\\\r=\sqrt{16}=4

4 0
3 years ago
What is the slope of the equation 2x-5y=10
VikaD [51]
Using the slope-intercept form, y=mx + b to find the slope I found that correct answer is 2/5.
6 0
3 years ago
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Stels [109]

Answer:

B. It is a composite number.

Step-by-step explanation:

143 can be divided by 11 and 13 making it a composite number.

5 0
3 years ago
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