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Luden [163]
3 years ago
14

3 What force is needed to accelerate a 0.5-kg football at a rate of 40 m/s 2?

Mathematics
1 answer:
NNADVOKAT [17]3 years ago
7 0

Answer:

20N

Step-by-step explanation:

  1. F = ma
  2. F = 0.5 x 40
  3. F = 20N
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. Find the value of sec θ for the angle shown. (2 points) A line is drawn from the origin through the point seven comma six. The
choli [55]

Answer:  \frac{\sqrt{85}}{7}

<u>Step-by-step explanation:</u>

(7, 6)

Use Pythagorean Theorem to find the hypotenuse:

7² + 6² = c²

49 + 36 = c²

   85      = c²

   √85  = c

adjacent = 7, opposite = 6, hypotenuse = √85

sec θ = \frac{hypotenuse}{adjacent} = \frac{\sqrt{85}}{7}

8 0
3 years ago
Read 2 more answers
Hello Kids! Its Joe giving out a free brainliest to whoever answers this first with the abc's backwards!
sveticcg [70]

Answer:

Z, Y, X,

W, V,

U, T, S, R, Q, P, O, N,

M, L, K,

J, I, H,

G, F, E, D,

C, B, and A;

Step-by-step explanation:

5 0
2 years ago
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The graph of a linear equation contains the points (3,11) and (-2,1) . Which point also lies on the graph.
Ainat [17]
The answer for this is b
6 0
3 years ago
What 2 numbers add to get 2 and multiply to 4
rusak2 [61]
Factor 4
4=1 times 4
2 times 2
they don't add to 2
set up equation
x+y=2
xy=4

first equation, subtract x from both sides
y=2-x
subsitute for y
x(2-x)=4
distribute
2x-x^2=4
add x^2
2x=x^2+4
subtract 2x
0=x^2-2x+4
use quadratic formula which is
if you have ax^2+bx+c=0 then
x=\frac{ -b+/-\sqrt{b^{2}-4ac} }{2a} so

1x^2-2x+4=0
a=1
b=-2
c=4
x=\frac{ -(-2)+/-\sqrt{(-2)^{2}-4(1)(4)} }{2(1)}
x=\frac{ 2+/-\sqrt{4-16} }{2}
x=\frac{ 2+/-\sqrt{-12} }{2}
we have \sqrt{-12} and that doesn't give a real solution
therefor there are no real solutions
but if you want to solve fully
x=\frac{ 2+/-2\sqrt{-3} }{2}
i=\sqrt{-1}
x=\frac{ 2+/-2i\sqrt{3} }{2}
x=1+/-i\sqrt{3}
x=1-i\sqrt{3} or x=1+i\sqrt{3} (those are the 2 numbers)

 





6 0
3 years ago
A 2-column table with 5 rows titled Length Conversion. Column 1 is labeled Inches, x with entries 2, 4, 7, 10, 13. Column 2 is l
suter [353]

Answer:

a) en cuántas filas la suma es igual?

2+7+2+0+2=13

0+1+6+1+0=8

2+0+2+8+1=13

es igual en dos filas la primera y la última

b)en cuántas columnas la suma es igual?

2+0+2=4

7+1+0=8

2+6+2=8

0+1+8=9

2+0+1=3

es igual en dos columnas la segunda y la tercera

listo :)

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
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