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3 years ago

13. Mr. Robinson is growing carrots in planters that has a width of 4 1/2

Mathematics

1 answer:

Novosadov [1.4K]3 years ago

4 0

Answer:

12.375 or 12.38(rounded to the nearest hundredth)

Step-by-step explanation:

$4\frac{1}{2}$ = 4.5 $2\frac{3}{4}$ = 2.75

2.75 x 4.5= 12.375

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Sherri bought her daughter a microscope for her birthday. If it cost $79.99 plus 5% tax, how much did she have to pay for it?

Eduardwww [97]

Answer:

Around 84 dollars

Step-by-step explanation:

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3 years ago

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Verify that (cos²a) (2 + tan² a) = 2 - sin² a....<br>

Sveta_85 [38]

Trigonometric Formula's:

$\boxed{\sf \ \sf \sin^2 \theta + \cos^2 \theta = 1}$

$\boxed{ \sf tan\theta = \frac{sin\theta}{cos\theta} }$

Given to verify the following:

$\bf (cos^2a) (2 + tan^2 a) = 2 - sin^2 a$

$\texttt{\underline{rewrite the equation}:}$

$\rightarrow \sf (cos^2a) (2 + \dfrac{sin^2 a}{cos^2 a} )$

$\texttt{\underline{apply distributive method}:}$

$\rightarrow \sf 2 (cos^2a) + (\dfrac{sin^2 a}{cos^2 a} ) (cos^2a)$

$\texttt{\underline{simplify the following}:}$

$\rightarrow \sf 2cos^2 a + sin^2 a$

$\texttt{\underline{rewrite the equation}:}$

$\rightarrow \sf 2(1 - sin^2a ) + sin^2 a$

$\texttt{\underline{distribute inside the parenthesis}:}$

$\rightarrow \sf 2 - 2sin^2a + sin^2 a$

$\texttt{\underline{simplify the following}} :$

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Hence, verified the trigonometric identity.

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2 years ago

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What is the slope in this graph?

fredd [130]

The slope of this graph is 6

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2 years ago

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Solve each equation 3x+2(5x-3)=7

Sloan [31]

Answer:

Step-by-step explanation:

Step 1:

3x + 2 ( 5x - 3 ) = 7

Step 2:

3x + 10x - 6 = 7

Step 3:

13x - 6 = 7

Step 4:

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Answer:

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Hope This Helps :)

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3 years ago

Factor the quadratic expression as the product of two binomials x^2-3x-10

vovikov84 [41]

X^2+2x-5x-10
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(x-5)(x+2)

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3 years ago