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Vlada [557]
3 years ago
10

If you were asked to solve a system of linear equations using the substitution method, in what form would one or both of the equ

ations start as that would make the problem the simplest?
Select one:
Mathematics
2 answers:
Zina [86]3 years ago
7 0

Answer:

It'd be easist if one of  the variables was by itself

elena55 [62]3 years ago
4 0

Answer:

It'd be easist if one of  the variables was by itself

Step-by-step explanation:

I.E: y=2x+4 and 2y+x=23

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Naddika [18.5K]
The formula is:

V=Bh or V= l x w x h

I will use the l x w x h

So we know what the values are for each unit, so we would plug them in:

L x W x H = 10 x 2.3 x 4.5

Multiply the values which gets you 103.5


So the answer is 103.5 units cubed.


Have a nice day - Yeet
5 0
2 years ago
Read 2 more answers
John who is 5 ft tall is standing 20 feet away from a tree, and you measure the angle of elevation to be 38∘. How tall is the tr
fenix001 [56]

Answer:

The tree is 20.6 ft tall.

Step-by-step explanation:

Please check the attached graph.

From the diagram, it is clear that John is 5 ft tall is standing 20 feet away from a tree, making an angle of elevation to be 38⁰.

The diagram makes a right-angled triangle.

  • Given the angle = Ф = 38⁰
  • Adjacent = a = 5 ft
  • Opposite = b = 20 ft
  • Hypotenuse = Tree length = c  ?

Pythagorean Theorem:

For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as:

\:c=\sqrt{a^2+b^2}

substituting a=5, b=20

c=\sqrt{5^2+20^2}

c=5\sqrt{17}

c=20.6 ft

Thus, the tree is 20.6 ft tall.

3 0
3 years ago
naomis fish is 40 ml long her guinea pig is 25 cm long how much longer is her guinea pig than her fish
aliya0001 [1]

Answer:

the guinea pig is 21 cm longer

Step-by-step explanation:

fish = 40 mm

guinea pig 25 cm

convert the fish to cm

1 cm = 10 mm

40 mm * 1 cm/10 mm =  4 cm


guinea  pig - fish

25 cm - 4 cm

21 cm

the guinea pig is 21 cm longer

3 0
3 years ago
Write an equation o the line that passes through the given points (-1,7) and (2,-2)
RoseWind [281]

you have to. plot them on a lumber line

7 0
2 years ago
Determine if the described set is a subspace. Assume a, b, and c are real numbers. The subset of R3 consisting of vectors of the
AveGali [126]

Answer:

Not a subspace

Step-by-step explanation:

(4,0,0) and (0,4,0) are vectors in R3 with zero or one entries being nonzero, but their sum, (4,4,0) has two nonzero entries.

7 0
2 years ago
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