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PolarNik [594]
3 years ago
7

How much work must be done on a 1000-kg car to increase its speed from 1 m/s

Mathematics
1 answer:
yarga [219]3 years ago
4 0

Answer:

w=f*d

f=ma

f=1000*10

f=10000

w=10000j

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Yanka [14]
Step 2 because the answer is 1 is simplified
4 0
3 years ago
HELP PLZ I WILL GIVE BRAINLIEST!!! Write the prime factorization of 675 using exponents.
Viktor [21]

Answer:

Step-by-step explanation:

The prime factorization of 675 is 3 × 3 × 3 × 5 × 5. The factors of a number, x, are the numbers that multiply together to...

5 0
2 years ago
What two numbers add to 8 and multiply to 28
anygoal [31]
Find numbers that multiply to 28 and add them to see if they add to 8
28=
1 and 28=29 not 8
2 and 14=16 not 8
4 and 7=11 not 8
that's it'
no 2 numbers
we must use quadratic formula

x+y=8
xy=28

x+y=8
subtract x fromb oths ides
y=8-x
subsitute
x(8-x)=28
distribute
8x-x^2=28
add x^2 to both sides
8x=28+x^2
subtract 8x
x^2-8x+28=0

if you have
ax^2+bx+c=0 then x=\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}
so if we have
1x^2-8+28=0 then
a=1
b=-8
c=28

x=\frac{-(-8)+/- \sqrt{(-8)^{2}-4(1)(28)} }{2(1)}
x=\frac{8+/- \sqrt{-48} }{2}
x=\frac{8+/- 4 \sqrt{-3} }{2}
x=4+/- 2 \sqrt{-3}
x=4+/- 2i \sqrt{3}
there are no real numbers that satisfy this
5 0
3 years ago
Strawberries are $3.99 per pound. If a customer bought $30 worth, how many pounds did he buy? $
lubasha [3.4K]

Answer:

7.5

Step-by-step explanation:

Divide 30 by 3.99

  • 30/3.99=7.5
3 0
2 years ago
V=r^2+R^2h; Solve for R
Ne4ueva [31]
Solve for R by simplifying both sides of the equation, the isolating the variable. 
R^2h=-r^2+v
6 0
3 years ago
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