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3 years ago

Please help me pleeeeeease

Mathematics

2 answers:

adell [148]3 years ago

6 0

Your answer is B or #2 out of the possible answers

den301095 [7]3 years ago

3 0

It is the first one its almost like this but you try to guess x^{2}

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Find the value of a.

Nataly_w [17]

Answer: See below

Explanation:

6a + 11 = 2a + 83
6a - 2a = 83 - 11
4a = 72
a = 72/4
a = 18

6 0

3 years ago

Read 2 more answers

The population of a city is about 200,000 and is growing at a rate of 0.6% per year.

IgorC [24]

A)

$\bf \qquad \textit{Amount for Exponential Growth}\\\\
A=P(1 + r)^t\qquad 
\begin{cases}
A=\textit{accumulated amount}\\
P=\textit{initial amount}\to &200000\\
r=rate\to 0.6\%\to \frac{0.6}{100}\to &0.006\\
t=\textit{elapsed time}\to &t\\
\end{cases}
\\\\\\
A=200000(1+0.006)^t\implies A=200000(1.006)^t$

B) $\bf A=200000(1.006)^4$

5 0

4 years ago

A gardener is planting two types of trees:

Jet001 [13]

Answer:

6 years

Step-by-step explanation:

Convert feet to inches: 3 feet = 36 inches, 7 feet = 84 inches

Set two equations equal to each other:

First equation, Type A has a slope of 12 (grows 12 inches per year) and a y-intercept of 36 (it starts 36 inches (or 3 feet) tall)

Second equation, Type B has a slope of 4 (grows 4 inches per year) and a y-intercept of 84 (starts at 84 inches (or 7 feet) tall)

12x + 36 = 4x + 84

subtract 36 from both sides

12x = 4x + 48

subtract 4x from both sides

8x = 48

divide by 8 on both sides

x = 6

It will take the tree types 6 years to be the same height

Hope that helps!

4 0

3 years ago

What is the surface area of the cylinder with height 5 ft and radius 3 ft? Round your answer to the nearest thousandth

BabaBlast [244]

Answer:

150.8ft²

Step-by-step explanation:

A=2πrh+2πr2=2·π·3·5+2·π·32≈150.79645ft²

8 0

3 years ago

X^2+8x+c Perfect square Trinomial

Anit [1.1K]

We know square of the sum formula
(a+b)²=a²+2ab+b²
so we need
x²+8x+c=(x²+2*4*x+4²)-16+c=(x+4)²+c-16,
so for full square we need c-16=0
c=16
Answer: c=16

4 0

3 years ago