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4 years ago

Luerityilly CIUSS SECUMS UN SUNIUS

Mathematics

2 answers:

ruslelena [56]4 years ago

5 0

Answer:

cones cylinder sphere

Step-by-step explanation:

GarryVolchara [31]4 years ago

3 0

Answer:

1) cones

3) cylinders

5) spheres

Step-by-step explanation:

You might be interested in

Evaluate 6y + x9<br> When x = -5, y = -4

enyata [817]

Answer:

-69

Step-by-step explanation:

6(-4) + (-5)9

= -69

6 0

3 years ago

Read 2 more answers

If cos⁡ x=−45, and 180° < x < 270°, what is tan⁡(2x)?

iVinArrow [24]

$Tan2x =\frac{-24}{7}$

<u>Step-by-step explanation:</u>

Here we have , cos x = -4/5 ( corrected as given -45 which is not possible ) ,

180° < x < 270° i.e. in third quadrant . We need to find tan⁡(2x) . Let's find out:

⇒ $Tan\alpha = \frac{sin\alpha }{cos\alpha }$

⇒ $Tan\alpha = \frac{\sqrt{1-(cos\alpha)^2} }{cos\alpha }$

⇒ $Tan\alpha = \frac{\sqrt{1-(\frac{-4}{5})^2} }{\frac{-4}{5} }$

⇒ $Tan\alpha = \frac{-5}{4}\sqrt{1-(\frac{16}{25}) }$

⇒ $Tan\alpha = \frac{-5}{4}\sqrt{(\frac{25-16}{25}) }$

⇒ $Tan\alpha = \frac{-5}{4}(\frac{3}{5}) }$

⇒ $Tan\alpha = \frac{-3}{4}$ , since in third quadrant . $Tan\alpha = \frac{-3}{4}$ remains same .

Now , $Tan2x = \frac{2tanx}{1-(tanx)^{2}}}$

⇒ $Tan2x = \frac{2tanx}{1-(tanx)^{2}}}$

⇒ $Tan2x = \frac{2(\frac{-3}{4})}{1-(\frac{-3}{4})^{2}}}$

⇒ $Tan2x = \frac{-3}{2}(\frac{16}{7})$

⇒ $Tan2x =\frac{-24}{7}$

Therefore, $Tan2x =\frac{-24}{7}$ .

5 0

4 years ago

Complete the point-slope equation of the line through (-5,4) and (1,6). Use exact numbers.

BigorU [14]

ANSWER

$y - 6 = \frac{2}{7} (x - 1)$

EXPLANATION

The point-slope equation of a straight line is given by:

$y-y_1=m(x-x_1)$

Where m is the slope.

The line goes through (-5,4) and (1,6).

The slope of this line is,

$m = \frac{6 - 4}{1 - - 6}$

$m = \frac{2}{7}$

The point-slope equation is

$y - 6 = \frac{2}{7} (x - 1)$

7 0

3 years ago

2. Simplify this expression:

Advocard [28]

The answer is: 7w+7+3y

7 0

3 years ago

Find the Error A student is solving −2(x−5)=12-2(x-5)=12. Which of the following explains the student's mistake?

Evgesh-ka [11]

The second option: The student should have distributed and written -2x+5, not -2x-5.

That’s because the two negatives make a positive when multiplying/distributing.

7 0

3 years ago