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3 years ago

Pease answer number 9 for me.

Mathematics

1 answer:

Soloha48 [4]3 years ago

7 0

Answer:

a. 33 degrees

b. 90 degrees

c. 57 degrees

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Rationalize the numerator or denominator, and simplify:

allochka39001 [22]

$\dfrac{\sqrt[3]{x+h}-\sqrt[3]x}h\times\dfrac{\sqrt[3]{(x+h)^2}+\sqrt[3]{x(x+h)}+\sqrt[3]{x^2}}{\sqrt[3]{(x+h)^2}+\sqrt[3]{x(x+h)}+\sqrt[3]{x^2}}=\dfrac{(\sqrt[3]{x+h})^3-(\sqrt[3]x)^3}\cdots$
$=\dfrac{x+h-x}\cdots=\dfrac h\cdots$

The $h$ s then cancel, leaving you with the $\cdots=\sqrt[3]{(x+h)^2}+\sqrt[3]{x(x+h)}+\sqrt[3]{x^2}$ term.

If it's not clear what I did above, consider the substitution $a=\sqrt[3]{x+h}$ and $b=\sqrt[3]x$ . Then

$a^3-b^3=(a-b)(a^2+ab+b^2)$
$\implies\dfrac{a-b}h=\dfrac{a-b}h\times\dfrac{a^2+ab+b^2}{a^2+ab+b^2}=\dfrac{a^3-b^3}{h(a^2+ab+b^2)}$

4 0

3 years ago

HELP

rjkz [21]

This can be solve using systems of linear equation Let x be the number of milk chocolate candy bar sold Y be the number of white chocolate sold
X + y = 330
2x + 3y = 900
X = 90
Y =240 white chocolate
2. Website 1: y = 1.5x +30
<span>Website 2: y = 2x</span>

3 0

3 years ago

Based on the tax brackets, what’s the estimated total tax due for a single taxpayer with a taxable income of $43,500?

inysia [295]

Answer:

C. $5,509.50

Step-by-step explanation:

The computation of the estimated total tax due in case of taxable income for $43,500 is shown below:

Since in the question the income brackets and based on the income the different tax is to be charged

For $9,525, the 10% tax is charged i.e

$= \$9,525 \times 10\%$

= $952.50

Upto $38,700, the 12% tax is charged i.e

$= (\$38,700 - \$9,526) \times 12\%$

= $3,500.88

The remaining amount left is

$= (\$43,500 - \$38,701) \times 22\%$

= $1,055.78

Now the total tax due is

= $952.50 + $3,500.88 + $1,055.78

= $5,509.16 approx i.e $5,509.50

6 0

4 years ago

Jose takes 120 minutes to weed 6 equal rows of vegetable plants in his garden. What is his unit rate

Zarrin [17]

Answer:

3 rows/hour

Step-by-step explanation:

It is given that, Jose takes 120 minutes to weed 6 equal rows of vegetable plants in his garden.

120 minutes = 2 hours

We need to find the unit rate per hour for weeding these rows of his garden. It can be calculated as follows :

$R=\dfrac{6}{2}\\\\R=3\ \text{rows/hour}$

So, the rate for weeding these rows of his garden is 3 rows per hour.

6 0

3 years ago

Help ASAP please

Nataly [62]

Answer:

a) volume = 321.55 in³

Step-by-step explanation:

volume = 4/3πr³ = 4/3(3.14)4.25³) = 321.55 in³

7 0

3 years ago