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3 years ago

Please help I’ll mark you brainlist! :)))

Mathematics

2 answers:

algol [13]3 years ago

4 0

Answer:

quadrant 1

Step-by-step explanation:

serg [7]3 years ago

3 0

Answer:

type it out

Step-by-step explanation:

type out the question and Ill answer

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Find the dimensions of the rectangle with area 289 square inches that has minimum perimeter, and then find the minimum perimeter

nalin [4]

<span>To minimize the perimeter you should always have a square.
sqrt(289) = 17
The dimensions should be 17 X 17

To see , try starting at length 1, and gradually increase the length.
The height decreases at a faster rate than the length increases, up until you reach a square.

Or if you want to use algebra, Say the width is 17-x
Then the length is 289/(17-x)

Now, this is bigger than 17+x, as shown here:
289/(17-x) > 17+x
289 > 289 - x^2
which is true.
so the perimeter would be bigger than 2 * (17- x + 17 + x) = 2 * (2 * 17) = 4 * 17

Again, the dimensions should be a square. 17 X 17.</span>

4 0

3 years ago

What is the slope of the linear equation: y=-5x+6

ra1l [238]

It is -5.............

3 0

3 years ago

The state education commission wants to estimate the fraction of tenth grade students that have reading skills at or below the e

gizmo_the_mogwai [7]

Answer:

The large sample n = 1713.96

Step-by-step explanation:

<u>Explanation</u>:-

given the population proportion was estimated to be 0.22

population proportion (P) = 0.22

The 95 % level of significance = 1.96≅ 2

The margin of error = 0.02

The formula of margin error

$\frac{2\sqrt{p(1-p)} }{\sqrt{n} } = 0.02$ … ( i )

Substitute 'p' values in equation (1)

$\frac{2\sqrt{0.22(1-0.22)} }{\sqrt{n} } = 0.02$

cross multiplication and simplification, we get

$2X0.414= 0.02 \sqrt{n}$

$\frac{2X0.414}{0.02} = \sqrt{n}$

$41.4 = \sqrt{n}$

squaring on both sides, we get

the large sample n = 1713.96

7 0

3 years ago

If the graph of f(x)= 3^x is reflected over the x-axis, what is the equation of the new graph?

Lerok [7]

Answer:

g(x) = - 3^x

Step-by-step explanation:

<u>Reflection over x-axis results in:</u>

f(x) → - f(x) translation

<u>Therefore the new function is:</u>

g(x) = - 3^x

8 0

2 years ago

Read 2 more answers

What is the reason for statement 7 in the given proof? A. definition of midpoint B. definition of slope C. Parallel lines have e

Varvara68 [4.7K]

The reason is using point slope formula.

The photo attached given below:

<h3>what is point slope formula?</h3>

The equation of a straight line in the form y − y1 = m(x − x1) where m is the slope of the line and (x1, y1) are the coordinates of a given point on the line — compare slope-intercept form.

Now, we have to find the slope of AE, BF and CD.

We have to done this with help of coordinates.

So, we have to use point slope formula to find the slope of AE, BF and CD.

Learn more about this concept here:

brainly.com/question/2810340

#SPJ1

7 0

2 years ago