All categories

3 years ago

ANSWER ASAP FOR BRAINLEST and THANKS

Mathematics

2 answers:

Fynjy0 [20]3 years ago

6 0

The answer is a clockwise rotation of 90° about the origin

then a translation of 2 units right and 4 units up

Anika [276]3 years ago

4 0

Answer:

A clockwise rotation of 90° about the origin

then a translation of 2 units right and 4 units up.

Step-by-step explanation:

1 is wrong because a reflection across the y axis is not possible with ΔABC

2 is wrong because that would make it on the negative line of the y axis

3 is wrong because as stated before a reflection across the y is not possible

You might be interested in

The length of a hypotenuse of a 30-60-90 triangle is 4. Find the longest leg.

const2013 [10]

check the picture below.

5 0

3 years ago

Read 2 more answers

A geologist examines 14 geological samples for iron concentration. The mean iron concentration for the sample data is 0.181 cc/c

kykrilka [37]

Answer:

The 90% confidence interval for the population mean iron concentration is between 0.167 cc/m³ and 0.195 cc/m³.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.9}{2} = 0.05$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.05 = 0.95$ , so $z = 1.645$

Now, find M as such

$M = z*\frac{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the size of the sample.

$M = 1.645*\frac{0.0318}{\sqrt{14}} = 0.0140$

The lower end of the interval is the sample mean subtracted by M. So it is 0.181 - 0.0140 = 0.167 cc/m³.

The upper end of the interval is the sample mean added to M. So it is 0.181 + 0.0140 = 0.195 cc/m³.

The 90% confidence interval for the population mean iron concentration is between 0.167 cc/m³ and 0.195 cc/m³.

3 0

3 years ago

patriot [66]

Answer:

Step-by-step explanation:

Square root of 92 is 9.591663047

so round that to 9.59

5 0

3 years ago

I need help with the equation I know what the value of x is . Also their is only one equation .

Sindrei [870]

40+90=130
180-130=50
50+130=180
x=130
50+x=180

3 0

3 years ago

~please only answer if you know for sure~

NARA [144]

JKL is similar to PQR

so they want PR

JKL is similar to PQR

So PR is similar to JL

And they also give us the sides KL and QR

JKL is similar to PQR

Both of those sides are similar, so we can form a proportion.

$\sf { \frac{PR}{JL} = \frac{QR}{KL} }$

Plug in the numbers:

$\sf { \frac{PR}{6} = \frac{15}{9} }$

Cross multiply:

$\sf{ PR \times 9 = 6 \times 15}$

Isolate PR

$\sf{ PR = \frac{6 \times 15}{9}}$

Simplify it

$\sf{ PR = 10}$

So your final answer is

$\boxed{\bf{10 centimeters}}$

6 0

3 years ago

Read 2 more answers