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3 years ago

GIVING BRAINLIEST PLZ HELP +FREE EXTA POINTS

Mathematics

2 answers:

azamat3 years ago

6 0

Answer:

Option C

Step-by-step explanation:

The function on the graph has a y-intercept of 4 and a slope of 3x

y = 3x + 4

bagirrra123 [75]3 years ago

5 0

Option C

The function on the graph has a y-intercept of 4 and a slope of 3x

y = 3x + 4

please give brainliest i have over 1000 points but im still ambitous because nobody likes me

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Evaluate the expression. 8! − 5!

svp [43]

Answer:

40200

Step-by-step explanation:

(8x7x6x5x4x3x2x1) - (5x4x3x2x1)

Or simply plug 8! - 5! into the calc.

4 0

3 years ago

Read 2 more answers

Lashonda purchased a prepaid phone card for $20. Long distance calls cost 8 cents a minute using this card. Lashonda used her ca

Gre4nikov [31]

We know that

• Lashonda purchased a prepaid phone card for $20.

• Long-distance calls cost 8 cents a minute.

• The remaining credit on her card is $17.12.

This problem can be expressed as

$20-0.08x=17.12$

Where <em>x</em> is the number of minutes.

We solve the equation for <em>x</em>

$\begin{gathered} -0.08x=17.12-20 \\ -0.08x=-2.88 \end{gathered}$

Then, we divide by -0.08 the equation

$\begin{gathered} \frac{-0.08x}{-0.08}=\frac{-2.88}{-0.08} \\ x=36 \end{gathered}$ <h2>Therefore, Lashonda's call last 36 minutes.</h2>

8 0

2 years ago

A population of a particular yeast cell develops with a constant relative growth rate of 0.4225 per hour. The initial population

Ksju [112]

Answer: The population after 3 hours is 13.9 mill.

Step-by-step explanation:

When we have an exponential with:

A = initial population.

r = constant relative growth rate:

t = time.

The function that models this is:

P(t) = A*e^(k*t)

In this case we know that:

A = 3.9 mill.

r = 0.4225 1.

Then the function that models the population of this yeast cell is:

P(t) = (3.9 mill)*e^(0.4225*t)

where t represents the time in hours.

Then if we want to know the population after 3 hours, we should replace t by 3.

P(3) = (3.9 mill)*e^(0.4225*3) = 13.85 mill.

And we want to round our answer to one decimal place, then we must look at the second decimal place, we can see that is a 5, so we should round up.

The population after 3 hours is 13.9 mill.

8 0

4 years ago

Charlie saves $21.45 each month for 6 months.In the seventh month, he only saves $10.60.How much money will Charlie have after 7

Tomtit [17]

$21.45 x 6 = $128.7
$128.7 + $10.60 = $139.3

Charlie will have saved $139.3 in 7 months

8 0

3 years ago

What if the following is the sum of both solutions of the equation....

LuckyWell [14K]

answer

D 2

factor

factor the equation $x^{2} - 2x - 8 = 0$ into (x + a) and (x + b) so that a + b = -2 and a * b = -8

the two numbers that meet these conditions are a = -4 and b = 2

$x^{2} - 2x - 8 = (x - 4)(x + 2)$

find solutions

set both (x - 4) and (x + 2) equal to zero to find your solutions

x - 4 = 0

x = 4

x + 2 = 0

x = -2

add solutions

since the two solutions are x = 4 and x = -2, add them together to get your final answer

4 + (-2) = 2

6 0

3 years ago