Can someone please help with these problems I’m having trouble pls

When the chords intersect inside the circle the sum of the vertical angles and the sum of the referenced arcs are the same.  Since the vertical angles are congruent, each is half the sum of the referenced arcs.

Similarly when the chords intersect outside the circle, the angle is half the difference of the arc measures.

It's the same with a tangent; in that case there's just not a part of the arc that's not counted on the side with the tangent.

OK, that's how.  Let's try some.

1.  x = (88 + 86)/2 = 87

2. x = (150 - 60)/2 = 45

3. The angle is exactly half the subtended arc,

x = 110/2 = 55

4. The referenced arc is 360 - 220 = 140 degrees and x is half, 70.

5.  Outside, half the difference, x = (90-20)/2 = 35

6.  Angle outside, inner arc 6 degrees, vertical angle is 90 degrees.

90 = (x - 6)/2

180 = x - 6

x = 186

7.  There's a special rule for this case but we can treat it as outside, little arc x, big arc 360-x,

60 = (360 - x  - x)/2

120 = 360 - 2x

2x = 240

x = 120

8. Inner arc x, outer arc is 360-140-x = 220-x.  Half the difference is 38,

38 = (220 - x - x)/2

76 = 220 - 2x

2x = 220 - 76

x = (220 - 76)/2 = 72

9.  x is formed by a tangent and a radius, so a right angle, x=90

y is subtended by a 35 degree angle so y=70

10.  Remaining triangle angle is 180 - 62 - 28 = 90.  Arc that subtends it is double, 180.  That means the long side is a diameter.

11.  Remaining triangle angle is 180 - 50 - 70 = 60. x=120, y=100, z=140

12.  Remaining arc 360 - 170 - 90 = 100.  Angles are half.

x=45, y=50, z=85

Colin spends
3
4
of his wages on rent and
1
8
on food. If he makes £192 per week, how much money does he have left?

please help me

If you multiply x to the second power by x to the seventh power, what is the product?

if the radius of the circular region is 5 yards what was the total length of the border to the nearest tenth of a yard

Find the area of the figure.

help plz help plz help plz help plz​

what two numbers multiply to -42 and add to 19

Maria drew a shape with four sides. The shape had one pair of parallel opposite sides. What kind of shape did Maria draw? Write the name of the shape.

​A random sample of n1 = 16 communities in western Kansas gave the following information for people under 25 years of age.
​

x1: Rate of hay fever per 1000 population for people under 25

​

​144 89 119 119 125 136 91 109 111 108 116 123 120 121 115 123

​

A random sample of n2 = 14 regions in western Kansas gave the following information for people over 50 years old.

​

x2: Rate of hay fever per 1000 population for people over 50

​

​109 109 90 81 85 94 92 106 110 89 87 94 100 90

​

Assume that the hay fever rate in each age group has an approximately normal distribution. Do the data indicate that the age group over 50 has a lower rate of hay fever? Use α =0.05. If , will you reject or fail to reject the null hypothesis? Are the data statistically significant at confidence level α?

​​

a
​Since the P-value is less than the level of significance, the data are statistically significant. Thus, we fail to reject the null hypothesis.
b
​Since the P-value is greater than the level of significance, the data are statistically significant. Thus, we reject the null hypothesis.
c
​Since the P-value is less than the level of significance, the data are not statistically significant. Thus, we reject the null hypothesis.
d
​Since the P-value is less than the level of significance, the data are not statistically significant. Thus, we fail to reject the null hypothesis.
e
​Since the P-value is less than the level of significance, the data are statistically significant. Thus, we reject the null hypothesis.

Which item has the most volume?

A. A grape

B. A ping-pong ball

C. A basketball

D. A tennis ball

ANSWER QUICK. I NEED ANSWER IN 5 MINUTES.​

which statements about the graph of the function y=(1/3) are true ?

Use the data set $19, $18, $15, $17, $19, $12, $19, and $15. Which measure of center would you use to convince people that the prices are high?
F. mean G. median
H. mode
I. none of these

The solution to ? Is m= 1.

A). m + 2 = 1

B). m + 1 = 3

C). m + 1 = 2

D). m - 2 = 1

PLEASE HELP ME OUT! i need to get this!

The expression 1 + tan² x is equivalent to

what is the solution to the equation -3d/d^2-2d-8+3/d-4 = -2/d+2
A. d = -4 and d = 2
B. d = -2 and d = 4
C. d = 1
D. d = 2

2a+3/2 - a-2/3 = a-1/4

This table shows covalent compounds being investigated by five scientists. Each scientist wants to give a chemical name to the compound.




Which scientist(s) incorrectly named her compound? Check all that apply.


Adele

Ethel

Kate

Audrey

Halley

Identify the function represented my the graph

I need someone help ASAP

The volume formula for a right pyramid is V=
= Bh. What does Brepresent?
O A. Area of the base
B. Perimeter of the base
C. Length of the base
O D. Volume of the base

Which expression is not equivalent to the other expressions?
will mark as brainliest

A) -6(2 x - 4)

B) -(12 x - 6) + 18

C) -3(4 x - 3) + 15

D) -4(3 x + 6)

15 points
Help!!


If Sue worked 7 1/4 hours on Monday, 3 hours on Tuesday, 6 3/4 hours on Wednesday, 8 hours on Thursday, and 5 hours on Friday, calculate her weekly wage at $4.10 per hour

A line with a slope of 7 and an x-intercept of 4 passes through which of the following points?

A. (4,9)
B. (-3,7)
C. (3,-7)
D. (3,7)

A pair of snow boots at an equipment store in Big Bear that originally cost $80 is on sale for $56. What is the rate of discount?

Will mark brainliest PLEASE HELP!!! 20 points

The coordinates of point A are (6,2).
The coordinates of point B are (2, 6).
Line AB is transformed to form line A'B' shown in the graph:





What is the transformation of line AB that results in line A'B'?
Line AB is

A reflected across the y-axis
B reflected across the x-axis
C rotated 180°
D translated

You have a job at McDonald's that pays $6.25 working part-time. Write and solve an
inequality to find out how many hours you must work to earn at least $250.

Leave an explanation thx!​

A circle has a radius of 3. An arc in this circle has a central angle of 340°. What is the length of the arc?

Why did donald trump take a hump on a speed bump

Andrea bought 12 bagels and 10 muffins at the bakery. of these items 2/3 of the bagels were multigrain and 3/5 of the muffins were bran muffins. How many multigrain bagels did Andrea buy and how many bran muffins did Andrea buy