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3 years ago

PLZ HELP 60 POINTS!!!!!

Mathematics

2 answers:

ratelena [41]3 years ago

7 0

Answer: Vector travelling 4 units to the left and 1 unit up, facing northwest.

Step-by-step explanation:

The original shape is ABC, while the translated shape is A'B'C'.

The translation is 4 units to the left and 1 unit up.

The correct vector will display as a vector travelling 4 units across and 1 unit down, facing northwest.

The first attached image travels 4 units across and 1 unit down, and faces the correct direction (northwest).

The second attached image travels 4 units across and 1 unit down, but it faces the wrong direction (southeast).

The third image travels 1 unit across and 2 units down. This is incorrect.

The fourth image travels 1 unit across and 2 units down. This is incorrect.

The correct answer is the first attached image (linked in comments)

Tom [10]3 years ago

4 0

Answer:

translation is 1 unit up, 4 units left.

vector is on image 2

Step-by-step explanation:

triangle ABC translated to is A'B'C'.

The translation is 1 unit up, 4 units left.

the correct vector is on image 2

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3. Mr. James told Jill he would charge her $15 per hour, plus parts, to fix her bicycle.

ad-work [718]

Answer:

512

Solution:

so first you multiply 15 times 32 and get 480 than you add 32 and get 512.

7 0

3 years ago

Which of the following numbers is closest to 12? O A. V145 B. 7147 C. V 142 D. V 146 . V

Keith_Richards [23]

Answer: C

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Suppose the sediment density (g/cm) of a randomly selected specimen from a certain region is normally distributed with mean 2.7

Zinaida [17]

Answer:

(a) The probability that the sample average sediment density is at most 3.00 is 0.092.

The probability that the sample average sediment density is between 2.70 and 3.00 is 0.477.

(b) The sample size must be at least 77.

Step-by-step explanation:

The random variable X ca be defined as the sediment density (g/cm) of a specimen from a certain region.

The random variable X is normally distributed with mean, μ = 2.7 and standard deviation, σ = 0.75.

(a)

A random sample of n = 25 specimens is selected.

Compute the probability that the sample average sediment density is at most 3.00 as follows:

Apply continuity correction:

$P(\bar X\leq 3.00)=P(\bar X$

$=P(\bar X$

$=P(\frac{\bar X-\mu}{\sigma/\sqrt{n}}$

$=P(Z$

Thus, the probability that the sample average sediment density is at most 3.00 is 0.092.

Compute the probability that the sample average sediment density is between 2.70 and 3.00 as follows:

$P(2.70$

$=P(0$

*Use a z-table.

Thus, the probability that the sample average sediment density is between 2.70 and 3.00 is 0.477.

(b)

It is provided that:

$P(\bar X\leq 3.00)\geq 0.99$

$P(\bar X$

$P(\frac{\bar X-\mu}{\sigma/\sqrt{n}}$

$P(Z$

The value of z for the probability above is

z ≥ 2.33

Compute the value of n as follows:

$\frac{|2.50-2.70|}{0.75/\sqrt{n}}\geq 2.33$

$\frac{|-0.20|}{2.33}\geq \frac{0.75}{\sqrt{n}}$

$\sqrt{n}\geq \frac{0.75\times 2.33}{|-0.20|}\\\sqrt{n}\geq 8.7375\\n\geq 76.3439\\\approx n\geq 77$

Thus, the sample size must be at least 77.

8 0

3 years ago

Pls help. I really don’t understand how to do this.

crimeas [40]

Answer:

k = 6

Step-by-step explanation:

Given f(x) then f(x + a) is a horizontal translation of f(x)

• If a > 0 then a shift to the left of a units

• If a < 0 then a shift to the right of a units

Here g(x) is the graph of f(x) shifted 6 units to the left

Then

g(x) = f(x + 6) → with k = 6

4 0

3 years ago

Darya [45]

Answer:

C. 0.2

Step-by-step explanation:

Answer:

0.25

Step-by-step explanation:

Locate the x value -1.5 along the x-axis. It has a matching output or y value on the curve. Draw a vertical line at x = -1.5. Where the line and curve intersect it the output value. Here it estimates as 0.25.

Answer:

0.223 is the answer

Step-by-step explanation:

Here first we draw the graph of y =

and in order to find the value of

we draw a line x =-1.5

and the point where this line x =-1.5 intersects with given

graph is the required value

which is y =0.223 at x =-1.5

Below is the graph given

8 0

3 years ago