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2 years ago

Reflect the quadrilateral graph on the x axis graph is the X-axis reflection right?

Mathematics

1 answer:

agasfer [191]2 years ago

8 0

Answer:

Step-by-step explanation:

No . B' (reflection of B) and C' (reflection of C) are in the right position, but D' should be at (4, 1) and A' should be at (-2,-4).

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A village was founded four hundred years ago by a group of 20 people. In this village, the population triples every one hundred

Paha777 [63]

Answer:

Step-by-step explanation:

Treat this like compound interest: Use A = P(1 + r)^t.

Here, P is the initial population and A is 3 times that, or 3P. Since P = 20 people, 3P = 60 people,

and this population is reached after 100 years.

We need to determine r, substitute its value into the formula A = P(1 + r)^t, and then determine the population of the village after 400 years.

60 = 20(1 + r)^100

Simplifying, 3 = (1 + r)^100.

Taking the natural log of both sides,

ln 3 = 100 ln (1 + r), or

ln 3

ln (1 + r) = ---------------

100

= 1.0986 / 100 = 0.01986

We must solve this for r. Raising e to the power ln (1 + r), on the left side of an equation, and raising e to the power 0. 01986 on the right side, we get:

1 + r = 3, so r must = 2.

Now find the pop of the village today. Use the same equation: A = P (1+r)^t.

A = 20(1 +2)^4 (hundreds),

A = 20(3)^4, or

A = 81

The population after 400 years is 81.

8 0

2 years ago

What is the reciprocal of 8 5/6

VashaNatasha [74]

475).)ggbbghffffrrffffffffffffffffff

4 0

3 years ago

How do i do #8 for this

Tju [1.3M]

Answer:

8=1.2x+2

Step-by-step explanation:

you are given the total ($8) and that he wants one loaf of bread $2×1, so 8=1.2(the cost) times the number of tomatoes plus $2

5 0

3 years ago

Read 2 more answers

the probability that Jenya receives spam email is 4%.if she receives 520 email in a week about how much will be spam

wariber [46]

520*.04=20.8, or closer to 21 spam emails.

6 0

3 years ago

Which of the following are incorrect expressions for slope?

vfiekz [6]

Answer:

Option B and C are correct.

$\frac{x_2-x_1}{y_2-y_1}$

$\frac{run}{rise}$ are the expression incorrect for slope

Step-by-step explanation:

Slope is defined as the change in the dependent variable relative to the change in the dependent variable

or the ratio of the horizontal changes to vertical changes between any two points on the graph of the line.

The vertical changes between any two points is rise

The horizontal changes between any two points is run.

Formula for slope is given by:

For any two points $(x_1, y_1)$ and $(x_2, y_2)$

then slope is:

$\text{Slope} =\frac{rise}{run}= \frac{y_2-y_1}{x_2-x_1}$

or we can write this as:

Δy = $y_2-y_1$

Δx = $x_2-x_1$

⇒ $\text{Slope} = \frac{\triangle y}{\triangle x}$

Therefore, the expression which are incorrect for slope are;

$\frac{x_2-x_1}{y_2-y_1}$

$\frac{run}{rise}$

8 0

2 years ago

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Reflect the quadrilateral graph on the x axis graph is the X-axis reflection right?​

Reflect the quadrilateral graph on the x axis graph is the X-axis reflection right?