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3 years ago

A metal strip is being installed around a workbench that is 7 feet long and 2 feet wide. Find how much stripping is needed

Mathematics

1 answer:

algol133 years ago

6 0

18 ft will wrap the perimeter!!! Hope it helps

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A barrel contains 10 red balls, 11 blue balls, and 23 green balls. You start taking balls out. How many do you need to remove, a

marin [14]

Answer:

The answer is3

Step-by-step explanation:

because there is three colors

5 0

3 years ago

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The difference between the roots of the equation 2x^2−5x+c=0 is 0.25. Find c.

Luden [163]

Answer:

$c=\frac{99}{32}$

Step-by-step explanation:

The given quadratic equation is $2x^2-5x+c=0$ .

Comparing this equation to: $ax^2+bx+c=0$ , we have a=2,b=-5.

Where: $x_1+x_2=\frac{5}{2}$ and $x_1x_2=\frac{c}{2}$

The difference in roots is given by:

$x_2-x_1=\sqrt{(x_1+x_2)^2-4x_1x_2}$

$\implies 0.25=\sqrt{(2.5)^2-4(\frac{c}{2})}$

$\implies 0.25^2=6.25-2c$

$\implies 0.0625-6.25=-2c$

$\implies -6.1875=-2c$

Divide both sides by -2

$c=\frac{99}{32}$

3 0

4 years ago

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Rewrite the following expression .<br><br><br><img src="https://tex.z-dn.net/?f=x%5Cfrac%7B9%7D%7B7%7D" id="TexFormula1" title="

ss7ja [257]

For this case we must rewrite the following expression:

$x ^ {\frac {9} {7}}$

By definition of properties of powers and radicals we have to:

$\sqrt [n] {a ^ m} = a ^ {\frac {m} {n}}$

Then, the expression can be rewritten as:

$x ^ {\frac {9} {7}} = \sqrt [7] {x ^ 9}$

If we want to simplify:

$\sqrt [7] {x ^ 9} = \sqrt [7] {x ^ 7 * x ^ 2} = x \sqrt [7] {x ^ 2}$

ANswer:

$x ^ {\frac {9} {7}} = \sqrt [7] {x ^ 9} = x \sqrt [7] {x ^ 2}$

4 0

3 years ago

I need the first question pls

Papessa [141]

Answer:

Step-by-step explanation:

All magnets have two poles -- arbitrarily called North and South; a magnet is characterized by the magnetic force it creates.

7 0

3 years ago

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3 Select the correct answer. Which measure of center is the most appropriate for this data set? 20, 6, 42, 13, 15, 10, 9, 12, 12

Ainat [17]

Answer:

B median

Step-by-step explanation:

The median is the center of any data set

3 0

3 years ago