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3 years ago

What is the measurement of ∠2 and ∠11?

Mathematics

1 answer:

notsponge [240]3 years ago

3 0

Answer:

180

Step-by-step explanation:

You measure the size of an angle with a protractor. Or could be shown by an arc on the figure to indicate which angles that are congruent. Two angles whose measures together are 180° are called supplementary e.g. two right angles are supplementary since 90° + 90° = 180°.

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The number of cases of a new disease can be modeled by the quadratic regression equation y = –2x2 + 36x + 6, where x represents

nirvana33 [79]

Since x represents the year, year 15 will be 15 years.

Plug in "15" as your "x"

y = -2(15)^2 + 36(15) + 6

15^2 = 225 (Exponents come before multiplication)

y = -2(225) + 36(15) + 6

y = -450 + 540 + 6

y = 90 + 6

y = 96

The answer is B

3 0

3 years ago

Cindy is growing plants for a science project. During the project, one plant grows from a height of 7 cm to 10.85 cm. What is th

Leto [7]

Answer:

Percentage increase in the height is 55%.

Step-by-step explanation:

Since Cindy is growing plants for a science project. During the project Cindy found that one plant grows from 7 cm to 10.85 cm.

We have calculate percent increase in the height of the plant.

We know formula to calculate the percentage is

% Increase in the height = Net increase in the height×100/Initial length of the plant

= $\frac{(10.85-7)100}{7}= \frac{(3.85)(100)}{7}=\frac{385}{7}= 55%$

Therefore % increase in the height of the plant is 55%.

8 0

3 years ago

The line passes through the points ( 7, -7) and ( 6, -5) a. y = -2x + 7 c. y = -2x - 7 b. y = 2x - 21 d. y = 2x - 7

ollegr [7]

Slope = (-5+7)/(6 - 7) = -2

y = mx + b
b = y - mx
b = -7 - (-2)(7)
b = -7 + 14
b = 7

equation
y = -2x + 7

answer
a. y = -2x + 7

5 0

3 years ago

The first row in a theater has 8 seats, the second row has 12 seats, and the third row has 16 seats. If this pattern continues,

Delicious77 [7]

The answer is c 28 because it is going by plus 4

6 0

3 years ago

Read 2 more answers

An overhead projector enlarges the image on its glass by a scale factor of 4. A rectangle that is 3 inches wide and 7 inches lon

qwelly [4]

Just multiply the with and the length by four (considering the scale factor is 4)
3x4=12 and 7x4=28

6 0

3 years ago