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3 years ago

Can someone help with this thanks

Mathematics

2 answers:

Maksim231197 [3]3 years ago

8 0

I believe it’s 12000 because 30x50=1500 1500x2=3000 now 3000x4=12000

BigorU [14]3 years ago

6 0

What he said up above or below

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Help a fellow out please

Liula [17]

Answer:

24.27 cm

Step-by-step explanation:

sin 65 degrees = 22/x, so:

1 x

------------------ = ------

sin 65 deg 22

so x = 22 / (sin 65 deg) = 22/0.906 = 24.27 cm

8 0

3 years ago

F(x-3)=f(x)-f(3) Prove: f(0)=0

Sergio039 [100]

Step-by-step explanation:

Let x=3.

So, f(3-3)=f(3)-f(3), and thus f(0)=0.

8 0

2 years ago

Perpendicular bisector of segment with endpoints -2,0 and 6,12.

BlackZzzverrR [31]

Slope= y^2-y^1
————
x^2-x^1

slope= 12-0
——-
6+2

slope= 12
—-
8

slope= 3/2

perpendicular slope is the opposite reciprocal

perpendicular slope= -2/3

6 0

3 years ago

Suppose it takes 45 hours for robot A to construct a new robot. Working together with robot B, it takes 25 hours for both robots

Len [333]

Answer:

56 hours 25 minutes

Step-by-step explanation:

Given:

Suppose it takes 45 hours for robot A to construct a new robot

It takes 25 hours for both robots to construct a new robot.

Question asked:

How long would it take robot B to construct a new robot, working alone ?

Solution:

Let the time taken by robot B to construct new robot = $x$

By robot A

It takes 45 hours to construct = 1 new robot

It takes 1 hour to construct = $\frac{1}{45} \ new\ robot$

By robot B

It takes $x$ hours to construct = 1 new robot

It takes 1 hour to construct = $\frac{1}{x}$ new robot

By working together

It takes 25 hours to construct = 1 new robot

It takes 1 hour to construct = $\frac{1}{25} \ new\ robot$

$\frac{1}{25}$ new robot is constructed in = 1 hour

New robot is constructed by both working together in 1 hour = New robot is constructed by robot A in 1 hour + New robot is constructed by robot B in 1 hour

$\frac{1}{25} =\frac{1}{45} +\frac{1}{x} \\$

Subtracting both sides by $\frac{1}{45}$

$\frac{1}{25}-\frac{1}{45} =\frac{1}{45} -\frac{1}{45}+\frac{1}{x} \\\\\frac{1}{25}-\frac{1}{45} =\frac{1}{x}\\\\ Taking\ LCM \ of \ 25\ and\ 45,\ we\ got\ 225$

$\frac{9-5}{225} =\frac{1}{x} \\ \\ \frac{4}{225} =\frac{1}{x}\\\\ By\ cross \ multiplication\\4\times x=225\\Dividing\ both\ sides\ by\ 4\\x=56.25\ hours$

Thus, robot B would take 56 hours 25 minutes to construct a new robot, working alone.

4 0

3 years ago

Read 2 more answers

6. You want to save $1,000,000 in 40 years at a 3.5% interest rate. What is the principal (initial amount) you need to invest? R

labwork [276]

Answer:

When you deposit money in a bank, the bank usually pays you for the use of your money. When you take out a loan from a bank, you have to pay the bank for the use of their money. In both cases, the money paid is called the interest. It is usually expressed as a percent. Here we shall look at a formula for simple interest.

3 0

3 years ago