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3 years ago

(11x - 8) + (7x - 1)

Mathematics

1 answer:

DaniilM [7]3 years ago

7 0

Answer:Solution

18 −9

Step-by-step explanation:

! Eliminate redundant parentheses

(11x−8)+(7x−1)

11−8+7−1

Subtract the numbers

11−8+7−1

11−9+7

Combine like terms

11−9+7

18−9

Solution:

18 −9

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Find the surface area of the square pyramid if the slant height is 13 mm.

Tanzania [10]

Simple Question:

Find the surface area of the square pyramid if the slant height is 13 mm.

Options:

A. 264 mm

B. 288 mm

C. 335 5 mm

D. 407 mm

Answer:

A) 264mm

Step-by-step explanation:

11 x 13 = 143 = 264mm

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4 years ago

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LUCKY_DIMON [66]

Answer:

Step-by-step explanation:

y-3 = 3(x+1)

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Can someone please answer. There is one problem. There's a picture. Thank you!

yawa3891 [41]

Degrees: $s = \frac{\pi}{180}\theta r$
   $s = \frac{\pi}{180}(\frac{s}{r})(r)$
  <span> $s = \frac{\pi}{180}(\frac{165}{4})(4)$
  </span> $s = \frac{\pi}{180}(41.25)(4)$
   $s = \frac{\pi}{180}(165)$
   $s = \frac{165\pi}{180}$
   $s = \frac{11\pi}{12}$
   $s = \frac{11\pi}{12} * \frac{180}{\pi}$
   $s = 11 * 15$
   $s = 165\°$

Radians: $s = \theta r$
$s = \frac{s}{r}(r)$
$s = \frac{165}{4}(4)$
$s =41.25(4)$
$s =165$
$s =165 * \frac{\pi}{180}$
$s =11 * \frac{\pi}{12}$
$s = \frac{11\pi}{12}$

$Arc\ Length = \frac{central\ angle}{360} * circumference$
$Arc\ Length = \frac{\theta}{360} * 2\pi r$
$Arc\ Length = \frac{165}{360} * 2(3.14)(4)$
$Arc\ Length = \frac{11}{24} * 2(12.56)$
$Arc\ Length = \frac{11}{24} * 25.12$
$Arc\ Length = \frac{276.32}{24}$
$Arc\ Length \approx 11.51\bar{3}$

The answer is A.

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3 years ago

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The point (-4,-5) is rotated 270 degrees clockwise

Alex73 [517]

Answer:

90 degrees

Step-by-step explanation:

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Answer to this???pleaseee omggg