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3 years ago

Sharon tried to solve an equation step by step.

1 answer:

3 0

Not sure if this is what you’re looking for because the question is choppy and some of the letters/words are missing.

Step 2(?) the step with 15 - 3e
When combining 9 = -3e + 6, six would be subtracted from nine equaling three not fifteen.
Correct Steps:
Equation: 9 = -3 (e - 2)

Step 1: 9 = -3e + 6
- 6 - 6
3 = -3e

Step 2: 3 = -3e
/-3 /-3
-1 = e

Answer: -1 = e

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Sean is comparing dog food prices.At pet foods store,the total weight of a bag of dog food varies directly with the number of ba

12345 [234]

Answer:

Step-by-step explained :

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3 years ago

Select all possible values for x if −3x < 15.

makkiz [27]

Step-by-step explanation:

When dividing or multiplying by a negative number, remember to flip the inequality sign.

-3x < 15

x > -5 (divide -3 on both sides, flip the inequality sign)

The correct options are 2 and 9. (D and E)

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3 years ago

Read 2 more answers

A Web music store offers two versions of a popular song. The size of the standard Version is 2.7 megabytes (MB). The size of the

Shkiper50 [21]

Let x be number of downloads of standard version and y be number of downloads of high quality versions.

The hight quality downloads are twice as the standar downloads. So,

$y=2x$

The downloaded data for x standard version is 2.7x and for y high quality version is 4.2y. The total downloaded data is 3219. So,

$2.7x+4.2y=3219$

Substitute 2x for y in the equation and solve the obtained equation for x.

$\begin{gathered} 2.7x+4.2\cdot2x=3219 \\ 2.7x+8.4x=3219 \\ x=\frac{3219}{11.1} \\ =290 \end{gathered}$

So value of x is 290. Thus downloads of the standard version were 290.

Answer: 290

6 0

1 year ago

Expand the following using either the Binomial Theorem or Pascal’s Triangle. You must show your work for credit. (x - 3)^5

Rudiy27

I used bionomial expansion up to and including the term $x^{3}$

$(-3 + x)^{5}$

$-3^{5} (1 + -\frac{1}{3}x) ^{5}$

$-243 (1 + -\frac{1}{3}x) ^{5}$

n = 5
x = $- \frac{1}{3}x$

Binomial expansion:

$1 + nx + \frac{n(n-1) x^{2} }{2!} + \frac{n(n-1)(n-2) x^{3} }{3!}$

Therefore:

$1 + (5*- \frac{1}{3}x) + \frac{5(4) (- \frac{1}{3}x)^{2} }{2} + \frac{5(4)(3) (- \frac{1}{3}x)^{3} }{6}$

=

$1 - \frac{5}{3} x + \frac{10}{9} x^{2} - \frac{10}{27} x^{3} 

$

Multiply by -243

=

$-243 + 405x - 270x^{2} + 90 x^{3} 
$

3 0

3 years ago

Read 2 more answers

Create an equivalent expression for 11−7 • 115.

iogann1982 [59]

The equivalent expression to 11^-7 × 11^5 is one over eleven raised to the second power. option A

Exponential

11^-7 × 11^5

= 11^(-7+5)

= 11^(-2)

= 1 / 11²

Options:

one over eleven raised to the second power

(1/11)²

one over eleven raised to the power of negative two

(1/11)^-2

11^2

−11^2

Therefore, the equivalent expression to 11^-7 × 11^5 is one over eleven raised to the second power.

Learn more about exponential:

brainly.com/question/27161222

#SPJ1

4 0

1 year ago