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3 years ago

Pls help fast giving brainliest

Mathematics

1 answer:

Lerok [7]3 years ago

3 0

Answer:

im not sure

Step-by-step explanation:

im noy sure

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What is the work for 14 divided by 10.5

Softa [21]

14 divided by 10.5 is 1.3333 that goes on and on never stops.

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3 years ago

In History, you earned an exam score of X-85 where the exam average was μ-65 with a standard deviation of σ-5. In Biology, you e

topjm [15]

Answer: D. History

Step-by-step explanation:

To answer this question, we need to use the z-score formula written below:

$\frac{x-pop. mean}{stan. devi.}$

Now we'll just plug in the numbers and solve.

History:

$\frac{85-65}{5} = 4$

Biology:

$\frac{90-85}{10} =0.5$

As we can see, history wields a higher z-score than biology, thus leaving us with option D. History

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3 years ago

What is the surface area of a box that is 6 by 4 inches

san4es73 [151]

Answer:

The surface area of a box that is 6 by 4 inches is 24in²

6 0

2 years ago

Read 2 more answers

Make and explain a prediction about the nature of the solution to the following system of equations, and then solve the system.

Dominik [7]

Answer:

(3,-4) and (-3,4)

Step-by-step explanation:

$x^2+y^2=25$

$4x+3y=0$

The first equation is a circle with radius of 5 units

The second equation is a line which has slope $\frac{4}{3}$

So, for 4 unit change in y there will be 3 unit chang in x.

The circle has its center at the origin and the line passes through the orgin.

The line will intersect the circle at two points giving us two solutions

From the second equation we get

$y=-\frac{4}{3}x$

Applying in the second equation

$x^2+\left(-\frac{4}{3}x\right)^2=25\\\Rightarrow x^2+\frac{16}{9}x^2=25\\\Rightarrow \frac{9x^2+16x^2}{9}=25\\\Rightarrow 25x^2=225\\\Rightarrow x^2=\frac{225}{25}\\\Rightarrow x^2=9\\\Rightarrow x=\pm 3$

When x = 3

$y=-\frac{4}{3}x\\\Rightarrow y=-\frac{4}{3}\times 3\\\Rightarrow y=-4$

When x = -3

$y=-\frac{4}{3}x\\\Rightarrow y=-\frac{4}{3}\times -3\\\Rightarrow y=4$

So, the points where the line and circle intersect are (3,-4) and (-3,4)

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3 years ago

Can you find the lengths and areas and type the correct code? Please remember to type in ALL CAPS with no spaces. *

Virty [35]

Step-by-step explanation:

1. 156.15

2. 12335.85

3. 182.33

4. 8934.17

3 0

3 years ago

Pls help fast giving brainliest​

Pls help fast giving brainliest