2 years ago

Express 750 grams as a percentage of 3 kilograms

Mathematics

1 answer:

butalik [34]2 years ago

4 0

Hope it helps !!!!!!!

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AB = x - 10, BC = x + 2, and AC = 28. Find BC.<br><br>Please help!

Leno4ka [110]

Answer:

BC = 20

Step-by-step explanation:

AC = AB + BC

28 = x-10 + x+2

Combine like terms

28 = 2x -8

Add 8 to each side

28+8 = 2x-8+8

36 = 2x

Divide by 2

36/2 = 2x/2

18 =x

We want to find BC

BC = x+2

=18+2

=20

6 0

2 years ago

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P(x) = 2x² + 1<br> What is the inverse for p(x)?

Serhud [2]

Answer:

$P^{-1} (x)=\sqrt{\frac{x-1}{2} }$

Step-by-step explanation:

1. $P(x)=2x^{2} +1$

2. $y=2x^{2} +1$

3. $x=2y^{2} +1$

4. $2y^{2} =x-1$

5. $y^{2} =\frac{x-1}{2}$

6. $y=\sqrt{\frac{x-1}{2} }$

7. $P^{-1} (x)=\sqrt{\frac{x-1}{2} }$

4 0

3 years ago

What is the value of X? any help would be great:)

m_a_m_a [10]

idk sorry ill look for you

4 0

2 years ago

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Vector v has magnitude5 units, w has magnitude 3, and the acute angle between them is 45°.

givi [52]

Answer:

25 units

Step-by-step explanation:

No matter the direction of the vector, if we multiply the vector v by -5v, the magnitude can be calculated as follows:

$|-5*V|$

Due to properties of absolute value:

$|-5*V|=5*|V|=5*(5units) = 25 units$

8 0

2 years ago

richard goes to the electronics store.he buys 2 memory cards that cost 8.99 each and 3 packages of batteries that are on sale fo

natka813 [3]

2m + 3b + c + h
m = 8.99, b = 7.47, c = 2.99, h = 29.99
2(8.99) + 3(7.47) + 2.99 + 29.99
17.98 + 22.41 + 2.99 + 29.99
the answer is $73.37 before sales tax

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2 years ago