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3 years ago

Write an expression to 3(7 + 4g)

Mathematics

1 answer:

mafiozo [28]3 years ago

4 0

Answer:

Step-by-step explanation:

21+12g

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Find the value of x for which / || m

Tresset [83]

Answer:

Step-by-step explanation:

7 0

2 years ago

Your school wants to take out an ad in the paper congratulating the basketball team on a successful season, as shown to the rig

iogann1982 [59]

Answer:

$x_1 =-14.43 in, x_2 = 2.426in$

Since the measurement can't be negative the correct answer for this case would be $x =2.426 in$

Step-by-step explanation:

Let's assume that the figure attached illustrate the situation.

For this case the we know that the original area given by:

$A_i = 7 in *5 in = 35in^2$

And we know that the initial area is a half of the entire area in red $A_i = \frac{A_f}{2}$ , so then:

$A_f = 2 A_ i =2*35 = 70$

And we know that the area for a rectangular pieces is the length multiplied by the width so we have this:

$70 = (x+7) (x+5)$

We multiply both terms using algebra and the distributive property and we got:

$70 =x^2 +12 x +5$

And we can rewrite the expression like this:

$x^2 +12 x -35 = 0$

And we can solve this using the quadratic formula given by:

$x = \frac{-b \pm \sqrt{b^2 -4ac}}{2a}$

Where $a = 1, b =12 and c=-35$ if we replace we got:

$x = \frac{-12 \pm \sqrt{(12)^2 -4(1)(-35)}}{2*1}$

And the two possible solutions are then:

$x_1 =-14.43 in, x_2 = 2.426in$

Since the measurement can't be negative the correct answer for this case would be $x =2.426 in$

3 0

3 years ago

What is the standard form and the factored form

Feliz [49]

Answer:

See below

Step-by-step explanation:

<u>The factored form, use variables/numbers outside the square:</u>

(x + 6)(x - 4)

<u>The standard form, use variables/numbers inside the square:</u>

x² + 6x - 4x - 24 = x² + 2x - 24

3 0

2 years ago

Yoku Is putting on sunscreen. He uses 2 ml to cover 50 cm² of his skin. He wants to know how many milliliters of sunscreen he ne

Temka [501]

Alright so here it is

325/50=6.5
6.5*2=13
It would take 13 millimeters of sunscreen to cover 325 cm of skin

4 0

3 years ago

Read 2 more answers

How many fractions are equivalent to 4/5

Sidana [21]

There are an infinite number of them.

-- Think of any number.

-- Multiply 4 by your number. Write it on top.

-- Multiply 5 by your number. Write it on the bottom.

-- You have a new fraction that's equivalent to 4/5 .

How many different numbers can you think of ?
That's how many new fractions you can create
that are ALL equivalent to 4/5 .

6 0

3 years ago

Read 2 more answers