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NeTakaya
3 years ago
12

Swimming Pool On a certain hot summer's day, 630 people used the public swimming pool. The

Mathematics
1 answer:
crimeas [40]3 years ago
4 0

\mathfrak{\huge{\orange{\underline{\underline{AnSwEr:-}}}}}

Actually Welcome to the Concept of the linear equation in two variables.

So we have to form two equations to solve this.

Let the number of children be 'x' and number of adults be 'y'.

hence, we get as,

x+y = 630 ..... (1)

and also, to their total cost spending, we get as,

1.5x + 2.25y = 1170 ...... (2)

solving (1) and (2) we get as,

Number of children were = 330

and Number of Adults were = 300

(Solved in the attachment)

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Answer:

10.9\ \text{m/s}^2

Step-by-step explanation:

m = Masa del bloque = 18 kg

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El equilibrio de fuerzas del sistema viene dado por

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3 years ago
Evaluate 150 + 3p for p = 30
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150+3p

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150+3(30)

150+90

240

When p=30 in 150+3p, the final value is 240.

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What is x to the power of 2 minus x?
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6 0
3 years ago
the angles of a quadrilateral measures 80,100,100,80 in this order what kind of quadrilateral has this shape?
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5 0
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Cos(x+y)cos(x-y)=cos^2(x)-sin^2(y)<br> Verify the identity
GenaCL600 [577]

Answer: Verified.

Step-by-step explanation:  The given identity involving trigonometric ratios is

\cos(x+y)\cos(x-y)=\cos^2x-\sin^2y.

We have

L.H.S.\\\\=\cos(x+y)\cos(x-y)\\\\=\left(\cos x\cos y-\sin x\sin y\right)\left(\cos x\cos y+\sin x\sin y\right)\\\\=\left(\cos x\cos y\right)^2-\left(\sin x\sin y\right)^2\\\\=\cos^2x\cos^2y-\sin^2x\sin^2y\\\\=\cos^2x(1-\sin^2y)-(1-\cos^2x)\sin^2y\\\\=\cos^2x-\cos^2x\sin^2y-\sin^2y+\cos^2x\sin^2y\\\\=\cos^2x-\sin^2y\\\\=R.H.S.

Therefore, L.H.S. = R.H.S.

Thus, the given identity is verified.

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