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Illusion [34]
2 years ago
9

Can someone help me this?:(

Mathematics
1 answer:
Fofino [41]2 years ago
4 0

Answer:

1. 1, 2, 3, 4

2. A

3. empty set

4. I

5. A

6. O

7. I

8 E and O

9. A

10. I

11. U

12. U

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The equation tan(55) = 15/b can be used to find the length of line AC.what is the length of line AC round to the nearest 10th 3.
Nadusha1986 [10]

Answer:

10.5 in

Step-by-step explanation:

Given

tan(55) = \frac{15}{b}

Required

Find length AC

The question is not detailed enough; so, I'll assume that b represents line AC.

Having said that;

We start by multiplying both sides by b

tan(55) = \frac{15}{b}

b * tan(55) = \frac{15}{b} * b

b * tan(55) =15

Divide both sides by tan(55)

\frac{b * tan(55)}{tan(55)} = \frac{15}{tan(55)}

b = \frac{15}{tan(55)}

Find tan(55)

b = \frac{15}{1.42814800674}

b = 10.5031130731

b = 10.5  <em>(Approximated)</em>

<em />

Length AC is 10.5

7 0
3 years ago
Read 2 more answers
Which graph shows the solution to the system of linear inequalities?
Aleksandr [31]

Answer:

its d

Step-by-step explanation:

edge

3 0
3 years ago
Read 2 more answers
Please can some explain how to identify angles that on the same segment? ​
sp2606 [1]

Step-by-step explanation:

Angles in the same segment. The angles at the circumference subtended by the same arc are equal. More simply, angles in the same segment are equal.

Picture 1  a° = a°  they are the same

Picture 2  p= 52°  q= 40° Angles in the same segment are equal. if they ask you to calculate you just show both angles p= 52 and q=40.

Picture 3 + 4  Let the obtuse angle MOQ = 2x.  

Using the circle theorem, the angle at the centre is twice   the angle at the circumference.

Therefore picture 4 tells us and proves;

Angle MNQ = x and angle MPQ = x.

Picture 5

A cyclic quadrilateral is a quadrilateral drawn inside a circle. Every corner of the quadrilateral must touch the circumference of the circle.

The second shape is not a cyclic quadrilateral. One corner does not touch the circumference.

Picture 6

The opposite angles in a cyclic quadrilateral add up to 180°.

a + c = 180°

b + d = 180°

Picture 7

Example

Calculate the angles a and b.

The opposite angles in a cyclic quadrilateral add up to 180°.

This is a picture that couldn't be added but has a quadrilateral occupying half the triangle consisting of 3 arcs the middle one was 140 and proved part of one triangle. The x (a) missing angle showed below a = 180-60 = 120 °

So hopefully this will help you remember the format here for quadrilateral shapes within a circle.

b = 180 - 140 = 40°

a = 180 - 60 = 120°

8 0
3 years ago
If p is a true statement and q is false, what is the truth value of p ∨ q?
ZanzabumX [31]
P V q = T V F = T

so, pVq is true.
7 0
3 years ago
Does the graph shown to the right represent a proportional or non-proportional relationship? How do you know?
ch4aika [34]

Answer:

proportional  relationship

Step-by-step explanation:

proportional relationships are straight lines that go thru the origin

This is a straight line  going thru (0,0) so it is a proportional relationship

7 0
3 years ago
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