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butalik [34]
3 years ago
8

A piece of plywood was cut so it's length was 7 feet by 3 feet what is the perimeter of the wood

Mathematics
2 answers:
lozanna [386]3 years ago
5 0
7 times 2 will be 14 and 3 times 2 is 6. So you need to add 14 plus 6 and you get 20 :) Hope you enjoy!
Len [333]3 years ago
4 0
The perimeter is 20. 7+3+7+3 or (7+3)x2

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Solve for x in the given interval.<br><br> sec x= -2√3/3, for π/2 ≤x≤π
drek231 [11]

Answer:

b. x=\frac{5\pi}{6}

Step-by-step explanation:

The given function is

\sec x=-\frac{2\sqrt{3} }{3},\:\:for\:\:\frac{\pi}{2}\le x \le \pi

Recall that the reciprocal of the cosine ratio is the secant ratio.

This implies that;

\frac{1}{\cos x}=-\frac{2\sqrt{3} }{3}

\Rightarrow \cos x=-\frac{3}{2\sqrt{3} }

\Rightarrow \cos x=-\frac{\sqrt{3}}{2}

We take the inverse cosine of both sides to obtain;

x=\cos^{-1}(-\frac{\sqrt{3}}{2})

x=\frac{5\pi}{6}

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3 years ago
If you had 11 dollars and spent 7 what fraction of the money did you spend
tatyana61 [14]

Answer:

7/11

Step-by-step explanation:

3 0
3 years ago
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allochka39001 [22]
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6 0
3 years ago
Madilyn and Penelope have 28 toys to build. Madilyn builds 3/4 of the toys, while Penelope builds 1/7. How many toys are there l
uysha [10]

Answer:

Step-by-step explanation:

3/4 x 28=21   Madilyn built 21 toys.

1/7 x 28=4     Penelope built 4 toys.

21+4=25        25 toys have been built altogether.

28-25=3

There are 3 toys left to build.

3 0
3 years ago
An arithmetic sequence has t1 = 6 and common difference 2 find t12 and s12​
Sergeeva-Olga [200]

Answer:

See below ~

Step-by-step explanation:

Finding t₁₂ :

⇒ t₁₂ = t₁ + 11d

⇒ t₁₂ = 6 + 11(2)

⇒ t₁₂ = 6 + 22

⇒ t₁₂ = 28

=============================================================

Finding S₁₂ :

⇒ S₁₂ = 12/2 × 2t₁ + (12 - 1)d

⇒ S₁₂ = 6 × 2(6) + 11(2)

⇒ S₁₂ = 6 × 12 + 22

⇒ S₁₂ = 6 × 34

⇒ S₁₂ = 204

4 0
2 years ago
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