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3 years ago

What is the value of x?

1 answer:

8 0

if the original value of x was negative then X the opposite sign version of X would have to be positive Princeton's if I start with x equals -3 then x equals -3 equals + 3 which is positive

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Use the graph to solve the given system of equations, x-3y=-3 x+y=5

sweet [91]

Answer:

x=3

y=2

Step-by-step explanation:

3 0

3 years ago

Selena was comparing the flying speeds of different birds in science class. Which of the three birds flies fastest? Why?

Mashcka [7]

Answer:

Option C. The robin flies fastest because its rate is 15 m/s

Step-by-step explanation:

Let

x -----> the time in seconds

y ----> the distance in meters

The speed is equal to divide the distance by the time

In this problem, the slope or unit rate of the linear equation is the same that the speed

Robin's Flight

Find the slope

The formula to calculate the slope between two points is equal to

$m=\frac{y2-y1}{x2-x1}$

take two points from the table

(2,30) and (3,45)

substitute in the formula

$m=\frac{45-30}{3-2}$

$m=\frac{15}{1}$

$m=15\frac{m}{sec}$

Cardinal's Flight

$y=10x$

$m=10\frac{m}{sec}$

Blue Jay's Flight

take two points from the graph

(0,0) and (2,20)

substitute in the formula

$m=\frac{20-0}{2-0}$

$m=\frac{20}{2}$

$m=10\frac{m}{sec}$

Compare

The robin flies fastest because its rate is 15 m/s

4 0

3 years ago

Find a simplified expression to represent the area of the triangle. The area formula for a triangle is bh, where b is the base a

snow_tiger [21]

Answer:4x^2+22x-12

Step-by-step explanation:

height=(2x+12)

base=(4x-2)

Area of =(base x height)/2

Area of =((4x-2)(2x+12))/2

Area of =(8x^2+48x-4x-24)/2

Area of =(8x^2+44x-24)/2

Area of =4x^2+22x-12

6 0

3 years ago

Read 2 more answers

Will mark brainliest

Simora [160]

Answer:

Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

Which figures below are similar? 1 and 2 2 and 3 2 and 4 1 and 4

Nana76 [90]

Answer:

I think it is 1 and 4 :))

Step-by-step explanation:

I hope so it will helpful for u

3 0

3 years ago