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3 years ago

Help me pleeaaseeeee

Mathematics

2 answers:

kykrilka [37]3 years ago

7 0

Answer:

120 degrees

Step-by-step explanation:

the angle is larger than 90 degrees but smaller than 180. if you add 90+15 you'd get 105 degrees but that seems a little too small so your best bet is 120

zhenek [66]3 years ago

5 0

Answer:

100?

Step-by-step explanation:

Yan po sagot ko e natama naman kami

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EASY

soldi70 [24.7K]

Answer: t ≥ 33

Step-by-step explanation:

So the temperature has to equal to 33 or less than 33.It can't be greater than 33.

8 0

4 years ago

2) A ray is a geometric figure that consist of

Leno4ka [110]

Answer:

A single point and a line that extends forever in one direction

Step-by-step explanation:

6 0

3 years ago

Which polar equation represents an ellipse?

tatuchka [14]

Answer:

$r=\frac{1}{3+2cos\theta}$

Step-by-step explanation:

Let us write the equations in standard form:

$r=\frac{1}{3+2cos\theta} \implies r=\frac{\frac{1}{3} }{1+\frac{2}{3}\cos \theta }$

We have

$e=\frac{2}{3}\:$ and

$ep=\frac{1}{3}$

Since the eccentricity of this conic is less than 1, the conic represents an ellipse.

The second equation is $r=\frac{3}{2+3\sin \theta}$ .

This is a hyperbola, because eccentricity is more than 1.

The third equation is $r=\frac{5}{2+2\sin \theta}$ .

This is a parabola, because eccentricity is 1.

The fourth equation is $r=\frac{2}{2-3\sin \theta}$ .

This is also a hyperbola, because eccentricity is more than 1.

5 0

4 years ago

Will give 100 points

steposvetlana [31]

Answer:

The answer is <ACD = 68°

Step-by-step explanation:

Using the property that the sum of interior angles in a triangle is equal 180°,we have:

<DAC + <ACD + <ADC = 180°

$2x + (180 - 4x) + 56 = 180 \\ - 2x + 56 = 0 \\ 2x = 56 \\ x = \frac{56}{2 } \\ x = 28$

Finally, calculating the angle <ACD, we have:

<ACD = 180 - 4x

<ACD = 180 - 4 . 28

<ACD = 180 - 112

ACD = 68°

5 0

3 years ago

Read 2 more answers

The perimeter of a rectangle is 208 inches. The ratio

bearhunter [10]

Answer:

65 in and 39 in respectively

Step-by-step explanation:

Let r be the common ratio; when we multiply both L and R by this common ratio, we'll get the actual length and actual width of the rectangle, Recalling that the formula for the perimeter of a rectangle is P = 2L + 2R, we get:

2(5r) + 2(3r) = 16r = 208 in

Then r = 208/16 = 13

Thus, the actual length is 5(13 in) and the actual width is 3(13 in.),

or 65 in and 39 in respectively.

As a check, calculate 65 in / 39 in; this comes out to 5:3, as required.

Then

6 0

3 years ago