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3 years ago

Pls help with the explanation and answer ty!

Mathematics

2 answers:

Zigmanuir [339]3 years ago

6 0

I’m sorry, the text is too small. But I hope you find your answer soon.

Anarel [89]3 years ago

5 0

Karen bought 16 boxes of pencil

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Please help thank you

Cerrena [4.2K]

Answer:

the first one maybe?

Step-by-step explanation:

5 0

3 years ago

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Solve the equation 3 cos 2 theta + sin theta = 1 for values of theta from 0 degrees to 180 degrees

eimsori [14]

Step-by-step explanation:

Recall that

$\cos{2\theta} = 1 -2\sin^2\theta$

so we can write our original equation as

$3 - 6\sin^2{\theta} + \sin{\theta} = 1$ or

$6\sin^2{\theta} - \sin{\theta} - 2 =0$

Let $x = \sin{\theta}$ so our equation becomes

$6x^2 - x - 2= 0$

which gives us two roots: $x = -\frac{1}{2}$ and $x = \frac{2}{3}$ .

This is equivalent to $\theta = 150°$ and $\theta = 41.8°$

6 0

3 years ago

Find the coordinates of the point 7/10 of the way from A to B

OverLord2011 [107]

Answer:

(6.8, 1.3)

Step-by-step explanation:

Given:

A(-3, -5), B(11, 4)

Find:

P such that AP/AB = 7/10

Solution:

Using the desired relation, we have ...

(P -A)/(B -A) = 7/10

10(P -A) = 7(B -A) . . . . . multiply by 10(B-A)

10P = 7B +3A . . . . . . . . add 10A to both sides

10P = 7(11, 4) +3(-3, -5) = (77 -9, 28 -15) = (68, 13)

P = (68, 13)/10 = (6.8, 1.3)

The point 7/10 of the way from A to B is (6.8, 1.3).

7 0

3 years ago

For example, for a circle of diameter 4 cm, the circumference is approximately cm.

Simora [160]

Answer:

the diameter is 4 cm which means the radius is 2 cm. Diameter divided by two will give you the radius. The formulae for circumference is 2 π⋅r. So the circumference would be 4 π.

Step-by-step explanation:

7 0

2 years ago

Does 2 + 2 really equal 4?

Dennis_Churaev [7]

Answer: yes

Step-by-step explanation:

2+2=4

5 0

3 years ago

Read 2 more answers