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2 years ago

Round to the nearest tenth

Mathematics

1 answer:

coldgirl [10]2 years ago

4 0

Answer:

Should be 36

Step-by-step explanation:

1. a^2 + 48^2= 60^2

2. a^2 + 2304 = 3600

3. Simplify: a^2 = 1296

4. Find the sqrt which is 36

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Solve the system of equations:<br> y = 3x<br> y=x2-4

Lubov Fominskaja [6]

Answer:

x = -4

y = -12

Step-by-step explanation:

Since y is 3x,

3x = 2x - 4

On solving we get x as -4

Substitute x and we get y as -12

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3 years ago

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Suppose a city with population 300 comma 000 has been growing at a rate of 3% per year. If this rate continues, find the popul

viktelen [127]

Answer:

The population of this city in 13 years is 440,550.

Step-by-step explanation:

Given:

Suppose a city with population 300, 000 has been growing at a rate of 3% per year.

Now, to find the population of this city in 13 years.

Let the population of this city in 13 years be $A.$

Population ( $P$ ) = 300,000.

Rate per year ( $r$ ) = 3%.

Time ( $t$ ) = 13 years.

Now, we put formula to get the population of the city in 13 years:

$A=P(1+r)^t\\\\A=300,000(1+3\%)^{13}\\\\A=300,000(1+0.03)^{13}\\\\A=300,000(1.03)^{13}\\\\A=300,000\times 1.4685\\\\A=440,550.$

Therefore, the population of this city in 13 years is 440,550.

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3 years ago

A land owner is planning to build a fenced-in, rectangular patio behind his garage, using his garage as one of the "walls." He w

GrogVix [38]

Answer: 800 feet²

Step-by-step explanation:

Lets remove the brackets from the function's expression

A(x) = -2x²+80x

So we got the quadratic function and we have to find the x that corresponds to function's maximum. Let it be X max

As we know Xmax= (X1+X2)/2 , where X1 and X2 are the roots of the function A(x)

Lets find X1 and X2

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x1=0 80-2*X2=0

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So Xmax= (0+40)/2=20

So Amax= A(20)= 20*(80-2*20)=20*40=800 feet²

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2 years ago

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The most simplified form is 16p+8q

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3 years ago

Rewrite 4x = 64 as a logarithmic equation.

anygoal [31]

Answer:

$log_{4}$ (64)=x

Step-by-step explanation:

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3 years ago

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