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3 years ago

6. Write an expression that is equivalent to 4 + 3(5 + x).

Mathematics

2 answers:

stealth61 [152]3 years ago

8 0

2*2+1(5+x)

This will give you the same answer as 4+3(5+x)

abruzzese [7]3 years ago

7 0

2*2+1(5+x)
This will give you the same answer as 4+3(5+x)

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In 2007 the population was 118,000 and in 2013 the population was 138,000

vekshin1

A.)
original/ new-original = x/100
118,000/138000-118,000= x/100
118000/20000= x/100
118/20=x/100
20x=11800
11800/20=590
The population increased 590%

6 0

3 years ago

The graph shows the solution to the initial value problem y'(t)=mt, y(t0)= -4

Charra [1.4K]

$y'(t)=mt
\\
\\ y=\int {mt} \, dt=m \int{t} \,dt=m \frac{t^2}{2} +C \\ \\y= \frac{mt^2}{2}+C$

Now find equation of the graph. It passes through the point (2,3), and intersects y-axis at -2.

$y=at^2+b
\\
\\3=a\times 2^2-2
\\
\\3=4a-2
\\
\\5=4a
\\
\\a= \frac{5}{4} 
\\
\\y=\frac{5}{4} t^2-2 \\ \\y= \frac{m}{2} t^2+C
\\ \\ \frac{m}{2} = \frac{5}{4} 
\\
\\m= \frac{5}{2} 
\\
\\C=-2
\\
\\y(t_0)=-4
\\
\\-4= \frac{5}{4} t_0^2-2
\\
\\ -2= \frac{5}{4} t_0^2
\\
\\ t_0^2=- \frac{8}{5} 
\\
\\t_0=\pm \sqrt{- \frac{8}{5} }$

3 0

3 years ago

5 yd<br> .<br> 6 yd<br> Byd<br> Click Here:

damaskus [11]

The answer would be

7 0

2 years ago

Suppose that a sequence is defined as follows.

aleksandrvk [35]

Answer:

here's your answer v

Step-by-step explanation:

The first number in the sequence, , is -2.

Each number after that is the previous number multiplied by -2.

etc. We start by stating that .

Now we need to show that for all n greater than or equal to 2, each number in the sequence is the previous number multiplied by -2.

this is the answer.

Answer:

a1+= -2; an = - 2a-1, n > 2

5 0

2 years ago

HELP

Dimas [21]

Answer:

$17.14

Step-by-step explanation:

Given : $y = - 0.34x^2 + 4.43x + 3.46$

To Find : Using the quadratic regression equation, what was the predicted profit in year 8

Solution :

$y = - 0.34x^2 + 4.43x + 3.46$

Where y is profit and x is year

Substitute x = 8

$y = -0.34(8)^2 + 4.43(8) + 3.46$

$y =17.14$

So, Option D is true

Hence the predicted profit in year 8 is $17.14

5 0

3 years ago

Read 2 more answers