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3 years ago

It's says use compatible numbers to complete the project.then estimate the sum 428+286

Mathematics

1 answer:

OLga [1]3 years ago

4 0

Answer:

Estimate: 700 Answer: 712

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What is the value of 3ab+ 50-6 when a=-1 and b=3? оо O 6 18 o o O 24

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Answer:

Step-by-step explanation:

3ab + 5b - 6 when a = -1 and b is 3

→ First substitute a and b into 3ab

3 × -1 × 3 = -9

→ Substitute b into 5b

5 × 3 = 15

→ Connect all the terms together

-9 + 15 - 6

→ Simplify

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3 years ago

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Vikentia [17]

Answer:

Step-by-step explanation:

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Find the Slope:

AveGali [126]

Answer:

4) slope= 0

5) $slope = - \frac{1}{7}$

Step-by-step explanation:

$\boxed{ slope = \frac{y _{2} - y_1 }{x_2 - x_1} }$

4) Slope

$= \frac{10 - 10}{ - 10 - 3}$

$= \frac{0}{ - 13}$

= 0

The slope is zero as the line is a horizontal line (since both points have the same y-coordinate of 10).

5) Slope

$= \frac{5 - 4}{2 - 9}$

$= \frac{1}{ - 7}$

$= - \frac{1}{7}$

Since you have taken (x₁, y₁) to be (9, 4), the value of x₁ should be 9 instead of 2.

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2 years ago

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The average price of a movie ticket in the United States from 1980 to 2000 can be modeled by the expression 2.75+0.10x, where x

Trava [24]

Answer:

2.75

Step-by-step explanation:

0.10 represents the rate at which prices have increased since 1980..

2.75 represents the price in 1980

This can be confirmed by inputting 0 as the value of x.

2.75+0.10(0) = 2.75

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3 years ago

Kendrick is trying to determine if a painting he wants to buy will fit in the space on his wall. If the rectangular frame's diag

Lilit [14]

Answer:

cos 36.87° = x ÷ 50

Step-by-step explanation:

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