All categories

3 years ago

Can someone pleaseeee help if you’re correct I’ll give u brainlist

Mathematics

1 answer:

marusya05 [52]3 years ago

6 0

Answer:

JL = 8 m

KD = 8 m

Step-by-step explanation:

By 45° - 45° - 90° triangle theorem:

$JK = \frac{1}{ \sqrt{2} } JD \\ \\JK = \frac{1}{ \sqrt{2} } \times 8 \sqrt{2} \\ \\ \red{JK = \boxed{8 }}\: m \\ \\ KD= \frac{1}{ \sqrt{2} } JD \\ \\KD = \frac{1}{ \sqrt{2} } \times 8 \sqrt{2} \\ \\ \purple{ KD = \boxed{8 } }\:m\\ \\$

You might be interested in

Suppose that a jewelry store tracked the amount of emeralds they sold each week to more accurately estimate how many emeralds to

RUDIKE [14]

Answer:

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

And for this case the 95% confidence interval is given by (2.13; 2.37)

We have a point of estimate for the sample mean with this formula:

$\bar X = \frac{Upper+ Lower}{2}= \frac{3.37+2.13}{2}= 2.75$

And for the margin of error we have the following estimation:

$ME= \frac{Upper -Lower}{2}= \frac{3.37-2.13}{2}= 0.62$

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

$\bar X$ represent the sample mean

$\mu$ population mean (variable of interest)

s represent the sample standard deviation

n represent the sample size

Solution to the problem

The confidence interval for the mean is given by the following formula:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

And for this case the 95% confidence interval is given by (2.13; 2.37)

We have a point of estimate for the sample mean with this formula:

$\bar X = \frac{Upper+ Lower}{2}= \frac{3.37+2.13}{2}= 2.75$

And for the margin of error we have the following estimation:

$ME= \frac{Upper -Lower}{2}= \frac{3.37-2.13}{2}= 0.62$

5 0

3 years ago

What is the amplitude of the graph of

Lera25 [3.4K]

It is 2 :)
Y=A sin(B(x+C))+D

Where A is equal to the amplitude.

Would appreciate brainliest answer :)

4 0

3 years ago

Use the drawing tool(s) to form the correct answer on the provided graph.

Dominik [7]

Answer:

see below. The solution is the doubly-shaded area.

Step-by-step explanation:

Each boundary line will be dashed, because the "or equal to" case is <em>not included</em>. Each shaded area will be above the corresponding boundary line because the comparison symbol is y > .... That is, only y-values greater than (above) those in the boundary line are part of the solution.

Of course, the boundary lines are graphed in the usual way. Each crosses the y-axis at the value of the constant in its equation. Each has a slope (rise/run) that is the value of the x-coefficient in the equation.

3 0

3 years ago

Read 2 more answers

A) Translate into proposition using suitable logical operators. Clearly mention propositions as

Rudik [331]

Tamam öğretmenim merhaba hocam nasılsınız iyi akşamlar canım çok sıkılıyo çok iyi bir insan bir arar bir şey var ama bir insan bir arar bir insan bir şey olmaz rica e evet w woorkbook woorkbook woorkbook woorkbook woorkbook woorkbook woorkbook woorkbook woorkbook woorkbook woorkbook woorkbook woorkbook we woorkbook woorkbook woorkbook evet w e okula bir insan

4 0

3 years ago

What is the solution to this system of linear equations? x − 3y = −2 x + 3y = 16

Oksana_A [137]

To solve for the solution of this system of linear equation, it is best to use substitution. From the first equation, x = 3y

Substituting the expression on the right for the value of x on the second equation,

-2(3y) + 3y = 16

Solving for the value of y gives y = -5 1/3

With this value of y, solving for x gives x = -16

Thus, the solution for this system of linear equation is (-16, -5 1/3)

7 0

3 years ago

Read 2 more answers

￼ Can someone pleaseeee help if you’re correct I’ll give u brainlist

Can someone pleaseeee help if you’re correct I’ll give u brainlist