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3 years ago

PLEASE HELP LAST QUESTION The figure below shows triangle ABC on the coordinate plane.

Mathematics

2 answers:

Soloha48 [4]3 years ago

7 0

B is (0,1)
A is (4,-6)
C is (-2, -2)

vivado [14]3 years ago

5 0

Answer: A'(4,-6) , B'(0,1), C'(-2,-2)

Step-by-step explanation:

From the given graph the coordinates of ΔABC area A (2,-2), B(-2,5) and C(-4,2)

If a translation is applied on ΔABC two units to the right and four units down to create ΔA'B'C'.

Then to find the coordinates of ΔA'B'C' will be we need to apply the translation rule

$(x,y)\rightarrow(x+2,y-4)$

Now, $A(2,-2)\rightarrow A'(2+2,-2-4)=A'(4,-6)$

$B(-2,5)\rightarrow B'(-2+2,5-4)=B'(0,1)$

and $C(-4,2)\rightarrow C'(-4+2,2-4)=C'(-2,-2)$

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A triangle has sides with lengths of 65 centimeters, 74 centimeters, and 97 centimeters. is it a right triangle?

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3 years ago

The average gasoline price of one of the major oil companies in Europe has been $1.25 per liter. Recently, the company has under

Ann [662]

Answer:

$t=\frac{1.20-1.25}{\frac{0.14}{\sqrt{49}}}=-2.50$

Step-by-step explanation:

Data given and notation

$\bar X=1.20$ represent the sample mean given

$\sigma = 0.14$ represent the population standard deviation

$n=49$ sample size

$\mu_o =1.25$ represent the value that we want to test

t would represent the statistic (variable of interest)

State the null and alternative hypotheses.

We need to conduct a hypothesis in order to check if the true mean for the gasoline prices is lower than 1.25, the system of hypothesis would be:

Null hypothesis: $\mu \geq 1.25$

Alternative hypothesis: $\mu < 1.25$

If we analyze the size for the sample is > 30 but we don't know the population deviation so is better apply a t test to compare the actual mean to the reference value, and the statistic is given by:

$t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}$ (1)

Calculate the statistic

We can replace in formula (1) the info given like this:

$t=\frac{1.20-1.25}{\frac{0.14}{\sqrt{49}}}=-2.50$

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3 years ago

PLEASE HELP ME!!! In a recent election, there were six candidates and 5100 total votes. The circle graph below summarizes the vo

Crazy boy [7]

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3 years ago

Please help need to know the answer to this supposedly is 9 + (9x36) 333 but I don’t get it

Ahat [919]

Answer:

459

Step-by-step explanation:

First line:

clock showing 9 o'clock + clock showing 9 o'clock + clock showing 3 o'clock = 9 + 9 + 3 = 21

Second line:

The calculators look exactly the same.

3 * calculators = 30

1 calculator = 10

Third line:

1 bulb + 1 bulb - 1 bulb = 15

Since 1 bulb - 1 bulb = 0, we have 1 bulb + 0 = 15, or

1 bulb = 15

Last line:

Clock showing 9 o'clock = 9

Calculator = 10

3 bulbs = 3 * 15 = 45

Total = 9 + 10 * 45 = 9 + 450 = 459

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3 years ago