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3 years ago

11

Help Don’t use for points or I’ll take it back

2 answers:

Vlada [557]3 years ago

8 0

Answer:

68 degrees

Step-by-step explanation:

2 complementary angles make up a 90 degree angle.

90 degrees - 22 degrees = 68 degrees

den301095 [7]3 years ago

7 0

68°, complementary means 90°, so that 9°- the angle

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Sam is selling used books online. The first book the customer buys is $8.00, the second-third book are $7.00 each, the fourth an

gizmo_the_mogwai [7]

8+7+7+5b is less than or equal to 35

3 0

2 years ago

HELP HELP MEEEEEEE Determine whether the triangles are similar. If they are write similarity statement. Explain your reasoning.

Alex_Xolod [135]

Answer:

no

Step-by-step explanation:

every triangles degrees equal 180.

78+21=99

180-99=81

the smaller triangle

21+80= 101

180-101=79

so the degrees are different

6 0

3 years ago

Use the diagram . Select a pair of supplementary angles

zepelin [54]

Answer:

B) angle fga + angle agc

Step-by-step explanation:

supplementary angles when added together equal to 180 degrees

4 0

2 years ago

Simplify the expression.<br> 4p + 12 - 6p + 6

Elza [17]

Answer:

-2p+18

Step-by-step explanation:

Combine like terms

8 0

3 years ago

Read 2 more answers

The equation x^2 + y^2 + 21 = 40 + 18y. What is the radius of this cookie?

trapecia [35]

Answer:

The radius is 10

Step-by-step explanation:

Given

$x^2 + y^2 + 21 = 40 + 18y.$

Required

The radius

Rewrite as:

$x^2 + y^2 - 18y = 40-21$

Subtract 81 from both sides

$x^2 + y^2 - 18y +81= 40-21+81$

Expand

$x^2 + y^2 - 9y - 9y +81= 40-21+81$

Factorize

$x^2 + y( y- 9) - 9(y -9)= 40-21+81$

Factor out y - 9

$x^2 + (y- 9) (y -9)= 40-21+81$

Express as squares

$x^2 + (y- 9)^2= 100$

$x^2 + (y- 9)= 10^2$

The equation of a circle is:

$(x - a)^2 + (y- b)= r^2$

By comparison:

$r^2=10^2$

$r = 10$

6 0

3 years ago