Please help me! 20 points! You don't have to graph btw! I only need help with 7 and 8!
[Inequalities Review]

Answer:

A=20, B=60, C=80

Step-by-step explanation:

Supplementary angles are those which add to 180 o. Complementary angles are those which add to 90°

Answer:

Search it up then you will get the answer

Step-by-step explanation:

Answer:

D.9

Step-by-step explanation:

Plug in 3 for x.

2^3=8

8+1=9

Answer:

2

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

16=1/2n+6

10=1/2n

20=n

Wwwwwwww

Hope this helps

9514 1404 393

Answer:

  B)  y = (x -7)(4x +3)

Step-by-step explanation:

For zeros p and q, factors of the function are (x -p) and (x -q).

For the given zeros, the factors are (x -7) and (x -(-3/4)). By multiplying the latter by 4, we can eliminate the fraction.

  y = (x -7)(4x +3)

Answer:

4 minutes

Step-by-step explanation:

40=1 min

40=2 min

40=3 min

40=4 min

40x4 or 40+40+40+40 is 160

Answer:

What question do you need help with?

Step-by-step explanation:

Answer: Second equation should be x/10 = 12/16

Step-by-step explanation:

Everything is right except that x=12 and 10=16

Answer:

31

Step-by-step explanation:

measure of WXY = 62/2, this can be explained by angle at center twice angle at circumference which the answer is 31

Answer:

i hope it will be right

Step-by-step explanation:

it will be 31ْ

Answer:

9 snacks

Step-by-step explanation:

50-9.2=40.8 40.8/4.25=9.6 soooooooo you can get 9 full snacks.

Answer:

it would be $58.50

Step-by-step explanation:

Answer:

9 sq ft

Step-by-step explanation:

9514 1404 393

Answer:

  3.  x = 10

  4.  a = 8

Step-by-step explanation:

A reasonably simple rule to remember for secants outside the circle or chords inside the circle: the product of the lengths from the point of intersection of the lines to the points of intersection of the circle is the same for each line.

When the external line is tangent to the circle, the two points of intersection of the line with the circle are the same: the point of tangency. Effectively, this means the length is squared.

__

3. For line QP, the product is 3(3+5) = 24.

For line QR, the product is 2(2+x). The rule above says these are equal:

  24 = 2(2+x)

  12 = 2+x . . . . . divide by 2

  10 = x . . . . . . . subtract 2

__

4. For line BC, the product is (a)(a) = a^2.

For line GC, the product is 4(12+4) = 64. The rule above says these are equal:

  a^2 = 64

  a = √64 . . . . take the square root

  a = 8

Answer:

...

Step-by-step explanation:

uhhhh

Answer: the bird went 128 metres in 15 sec and took 4 sec to descend

Step-by-step explanation: plz mark me brainliest

Answer:chili chuggen

Step-by-step explanation:

Answer:

The object will reach its highest point 0.5 seconds after it has been thrown.

Step-by-step explanation:

The object reaches its maximum height when velocity is equal to zero, the velocity is the derivative of function height. That is:

[tex]v(t) = \frac{d}{dt}h(t)[/tex] (1)

Where [tex]v(t)[/tex] is the velocity of the object at time [tex]t[/tex], in feet per seconds.

If we know that [tex]h(t) =-16\cdot t^{2}+64\cdot t[/tex] and [tex]v(t) = 0\,\frac{ft}{s}[/tex], then the time when object reaches its highest point is:

[tex]v(t) = -32\cdot t+64[/tex]

[tex]-32\cdot t + 64 = 0[/tex]

[tex]t = 0.5\,s[/tex]

The object will reach its highest point 0.5 seconds after it has been thrown.

Answer:[tex]y=-4x+14[/tex]

Step-by-step explanation:

[tex]y=mx+b\\\\y=-4x+b[/tex]

Use point (2,6) to solve for B

[tex]6=-4(2)+b\\6=-8+b\\14=b[/tex]

put b into equation

[tex]y=-4x+14[/tex]

Answer:

The area is 81.27

Step-by-step explanation:

Sorry for the late response, but I hope I helped and I always appreciate brainliest!!! :)

If you ever need me to answer a question, feel free to ask!

Answer:

area = 130.5 in²

Step-by-step explanation:

area = 1/2(6)(8.7)(5) = 130.5 in²

Answer:

80 is less than or equal to 22+7x

8 DVDs

Step-by-step explanation:

I don't have the inequality signs sorry if you don't know its the symbol thats opening to the left with a line underneath

80 is less than or equal to 22+7x

subtract 22

58 is less than or equal to 7x

divide and flip the sign to the right

x is greater than or equal to 8.29

so he can buy 8 DVDs in total

Answer:

11.16in^2

Step-by-step explanation:

Area of a sector = theta/360 * πr²

Area of a sector = 80/360 * 3.14*4²

Area of a sector = 8/36 * 50.24

Area of a sector  = 401.92/36

Area of a sector = 11.16in^2

Hence the Area of the sector is 11.16in^2

Answer:

11.16 in²

Step-by-step explanation:

I took the test

Answer:

The mistake happens in the 4th line.

Step-by-step explanation:

The first 3 lines are correct until the 4th line which is 2=6x. This is wrong. If we go back a line to the third line, it is 22=-20+6x. The part that was wrong was that they subtracted 20 from 22 to get 2. We are supposed to add 20 to each side because the -20 is negative. So the 4th line should be 42=6x. Then, we know that 6 times 7 is 42, so x is equal to 7.

22 + 53x + x = -20 + 60x

22 + 54x = -20 + 60x

22 = -20 + 6x

42 = 6x

x = 7

Answer:

-5/9

Step-by-step explanation:

also for this one, you have to put x as 3, y as 4, and z as 1

4/3(3)-1

=4/9-1

=4/9-9/9

=-5/9

hope this helps xD

Answer:

what grade are you if I nay ask so I can asisiy

Answer:

Im sorry for you this is too complex

Answer: y + 4 = -3(x+1)

Step-by-step explanation:

We need to rewrite in form of y=mx+b.

3x+y=5

     y = -3x + 5  

The slope is -3.

In addition, the slope of two parallel line would be equal, the slope of the line would be -3.

y- y1 = m(x- x1)

y- (-4) = -3(x - -1)

y + 4 = -3(x+1)

Answer:

A.iscoseles

b.obtuse

c.acute

Step-by-step explanation:

iscoseles 2 sides equal ome side not

obtuse an angle greater tha 90degree

acute angle less rhan 90degree