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3 years ago

I need help with this math problem

Mathematics

1 answer:

dimaraw [331]3 years ago

7 0

Choice J both prices are per a unit

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Using the triangle below, find the value of x.

xenn [34]

Answer:

Step-by-step explanation:

it looks like the right anwser

3 0

3 years ago

The table shows a linear function. Which equation represents the function?

4vir4ik [10]

Question is not complete and so I have attached the complete question.

Answer:

C: f(x) = -½x + 4

Step-by-step explanation:

Using slope formula between 2 points, we know that;

slope; m = (y2 - y1)/(x2 - x1)

Let's consider 2 points from the table;

(0, 4) and (-4, 6)

Thus;

m = (6 - 4)/(-4 - 0)

m = 2/-4

m = -½

Now using slope intercept form equation which is y - y1 = m(x - x1), we can find the equation of the function by picking on point say (0, 4).

Thus;

y - 4 = -½(x - 0)

y - 4 = -½x

y = -½x + 4

Thus;

f(x) = -½x + 4

8 0

2 years ago

The scores for a particular examination are normally distributed with a mean of 68.5% and a standard deviation of 8.2%. What is

stepladder [879]

Answer:

$P(80/100$

Step-by-step explanation:

We are given that

Mean, $\mu=68.5$ %=68.5/100

Standard deviation, $\sigma=8.2$ %=8.2/100

We have to find the probability that a student who wrote the examination had a mark between 80% and 100%.

$P(80/100$

We know that

$P(a$

Using the formula

$P(80/100$

$P(80/100$

6 0

3 years ago

Solve the following equation. -8x=-6x +10

miskamm [114]

(-8)x=(-6)x+10
(-2)x=10
X=10/-2
X=-5

8 0

3 years ago

Colby starts with 50 bacteria in his culture and the number of bacteria doubles every 2 hours, and Jaquan starts with 80 bacteri

Ymorist [56]

Given that x=number of days
To model the expressions we use the exponential growth given by:
y=a(b)^nx
where:
a=initial value
b=growth factor
n=24 hours
thus Colby's experiment will be:
y=50(2)^(1/2*24*x)
y=50(2)^(12x)
N/B we multiply by 24 so as to convert days into hours

b] Jaquan's starts with 80 bacteria that double every 3 hours.
a=80, b=2
thus
y=80(2)^(1/3×24×x)
simplifying the above we get:
y=80(2)^(8x)

4 0

3 years ago