All categories

2 years ago

Can you help me please and thank you.

Mathematics

1 answer:

vodka [1.7K]2 years ago

5 0

Answer:

The length is 40m

Step-by-step explanation:

Length = x

P = 2x + 2W

118 = 2x + 2(19)

118 = 2x + 38

118 - 38 = 2x

80 = 2x

80/2 = x

40 = x Length

y = amount of $ paid for the job

y + $48 = $200 total job for 3 -hours

y ÷ 3 amount paid per hour

You might be interested in

At what rate do we have to invest $10000 for 5 years compounded monthly to obtain a final amount of $20000?

stepan [7]

Answer: :D

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Question 2 (1 point) How much does the prefix milli multiply the value of a base unit?

I am Lyosha [343]

Answer:1000

Step-by-step explanation:

7 0

3 years ago

What value for C will make the expression a perfect square trinomial x2-7x+c

Tom [10]

Answer:

The value of c is 12.25

Step-by-step explanation:

we know that

A perfect square trinomial is of the form

$(x-a)^{2}=x^{2}-2ax+a^{2}$

In this problem we have

$x^{2}-7x+c$

equate the equations

$x^{2}-7x+c=x^{2}-2ax+a^{2}$

we have

the following equations

$-7x=-2ax$ -----> equation A

and

$c=a^{2}$ -----> equation B

Solve the equation A

$-7x=-2ax$

$7=2a$

$a=3.5$

Solve the equation B

$c=a^{2}$

$c=3.5^{2}=12.25$

therefore

$(x-3.5)^{2}=x^{2}-7x+12.25$

The value of c is 12.25

7 0

3 years ago

Read 2 more answers

Determinati numerele natrale x care sunt soltii ale incuatiilor:

Studentka2010 [4]

Um.. can you translate that to English..

6 0

3 years ago

Please help and thank you!

Stolb23 [73]

The conversion is

$x = r \cos \theta$

$y = r \sin \theta$

$\dfrac y x = \tan \theta$

We're given the fairly unusual

$\theta = -\frac 5 2$

It's fairly unusual because usually an angle is given in degrees or radians, and typically the radians are a fraction times pi. We'll assume radians.

$\dfrac y x = \tan \theta = \tan(-5/2) \approx 0.747$

Ah, there's our .75. The approximate answer is

$y = 0.75 x$

Third choice.

The exact answer is

$y = x \tan( -\frac 5 2)$

also a line through the origin.

3 0

3 years ago