3 years ago

The X-15 rocket plane is

Mathematics

1 answer:

mr_godi [17]3 years ago

3 0

100ft is gonna be the answer

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Please help this is in my test tomorrow♡

MAVERICK [17]

Answer:

67

Step-by-step explanation:

50-40+87-30

=50+(- 40)+87(-30)

=50+87+(-40)+(-30)

=(50+87+(-40)+(-30)

=137+(-70)

=67

when he wins, we add points. When he loses ,we subtract points.The score is 50 points. We right an expression to find the final score

5 0

3 years ago

Find the zeros of y = x + 6x- 4 by completing the square.

dsp73

Answer:

$\large\boxed{x=-3\pm\sqrt{13}}$

Step-by-step explanation:

$(a+b)^2=a^2+2ab+b^2\qquad(*)\\\\\\x^2+6x-4=0\qquad\text{add 4 to both sides}\\\\x^2+2(x)(3)=4\qquad\text{add}\ 3^2=9\ \text{to both sides}\\\\\underbrace{x^2+2(x)(3)+3^2}_{(*)}=4+9\\\\(x+3)^2=13\Rightarrow x+3=\pm\sqrt{13}\qquad\text{subtract 3 from both sides}\\\\x=-3\pm\sqrt{13}$

8 0

3 years ago

What is the value of the expression below when y=2 AND z=8? 8y-z

Kisachek [45]

Answer:

Step-by-step explanation:

4 0

3 years ago

Work out 2 3/14 + 3 4/14 Give your answer as a mixed number in its simplest form.

Gelneren [198K]

Answer :

It is 5 1/2

6 0

3 years ago

Read 2 more answers

How do you find three ordered pairs for -x+2y=-8

zvonat [6]

For a linear equation like this there will always be infinitely many solutions if you let x and y be any real number. So you can just pick any x and find the corresponding y. Take for exmaple x=1 then we get
-1+2y=8
2y=9
y=9/2=4.5 so an ordered pair that satifies your equation is (x,y)=(1,9/2).
Now you can go on and find more.

7 0

3 years ago