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2 years ago

Plz help me out, i dont really understand this question, WILL GIVE BRAINLIEST TO THE MOST EDUCATED!!

Mathematics

2 answers:

jolli1 [7]2 years ago

6 0

Answer:

Step-by-step explanation:

Basically, just substitute t for the value you were given, in this case, 4.

3*4^2 - 4

Do exponents first:

3*16 - 4

Multiply next

48-4

Subtract

allochka39001 [22]2 years ago

4 0

Answer:

its 44 the answer

Step-by-step explanation:

I hope this helps

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What is −√72 expressed in simplified form

Alekssandra [29.7K]

Answer:

− 6 √ 2

Step-by-step explanation:

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2 years ago

What is the perimeter of the rectangle in the coordinate plane?

Zinaida [17]

It's (10-7)=3 wide and (17-7)=10 high

So the perimeter is

P=2(3+10)=26 units

6 0

2 years ago

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The vertices of a rectangle are given in the columns of the matrix R=[0 0 3 3 0 3 3 0]. If [-1 0 0 1]x R is found to perform a t

krok68 [10]

Answer:

(0,0), (0, 3), (-3, 3), (-3,0)

Step-by-step explanation:

The matrix multiplication is shown in the attachment. The transformed coordinates are ...

(0,0), (0, 3), (-3, 3), (-3,0)

_____

You can count the instances of -3 in the result matrix to choose the correct answer.

7 0

2 years ago

Explain Each Part please!!!

ch4aika [34]

Constant of Variation has this formula for Direct Variation.
y = kx
Where y = cost in dollars; x = length in meters; k = constant

We will use the formula for direct variation because the problem states that the cost varies directly to the length.

In the problem we need to get the constant of variation.

k = y/x
k = $4500 / 200 meter
k = $22.50 cost per meter.

A.) The equation relating C and s is:

k = C/s
* i just substituted C for y and s for x.

B.) The constant of variation represents the additional cost that the company will pay for every meter in length they add. which is $22.50 per meter.

C.) y = kx ; substitute C and s to y and x respectively;

C = ks
C = $22.50 * 700 m
C = $15,750

8 0

3 years ago

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What are the answers to all these problems?

kodGreya [7K]

I'll show you a couple of examples, since all the exercises are to be done in the same way.

The point is that we can only sum two fractions if they have the same denominator. So, for example, we can sum

$\dfrac{3}{8} + \dfrac{2}{8} = \dfrac{3+2}{8} = \dfrac{5}{8}$

So, we first need to transform the two fractions so that they have the same denominators. A fraction can be transformed by multiplying both numerator and denominator by the same number. By doing so, you write another fraction with the same value as the original.

Let's deal with the first sum: we have 1/3 + 3/5. We transform the fraction as follows:

$\dfrac{1}{3} \to \dfrac{1\cdot 5}{3\cdot 5} = \dfrac{5}{15}$

$\dfrac{3}{5} \to \dfrac{3\cdot 3}{5\cdot 3} = \dfrac{9}{15}$

And now we can sum them:

$\dfrac{1}{3} + \dfrac{3}{5} = \dfrac{5}{15} + \dfrac{9}{15} = \dfrac{14}{15}$

4 0

2 years ago