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2 years ago

13

Holden is trying to determine the velocity of his race car. He went 20 meters east, turned around, and went 40 meters west. His

car was 20 meters from the starting line. This took 5 seconds.What is the car’s average velocity?

1 answer:

GaryK [48]2 years ago

8 0

Answer:

4/ms is the correct answer

Step-by-step explanation:

I hope it helps you

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2. Deon wants to find the perimeter of a square with side length 6m - 3. Write two expressions that represent the perimeter, inc

Ira Lisetskai [31]

Step-by-step explanation:

The perimeter of the given square is: a + a + a + a = 4 a units. Hence, the formula of the perimeter of a square = 4 × (length of any one side).

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2 years ago

A bacteria culture starts with 100 bacteria and doubles in size every half hour. (a) how many bacteria are there after 4 hours?

Savatey [412]

19200 all you have to do to figure this out is multiply 100 times 8 since the is 8 halfs in 4 hours.
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3 years ago

Three times the sum of a number and 2<br> is 7

Ainat [17]

3(x+2)=7 X=1/3 Because 3(x+2) would simplify to 3x+6=7 and then its a two-step equation

8 0

2 years ago

Read 2 more answers

Given the system of constraints name all vertices. Then find the maximum value of the given objective

larisa86 [58]

Answer:

$35$

Step-by-step explanation:

The constraints are

The red line represents the function

$y\leq \dfrac{1}{3}x+1$

At $y=0$

$0=\dfrac{1}{3}x+1\\\Rightarrow -1=\dfrac{1}{3}x\\\Rightarrow x=-3$

At $x=0$

$y=0+1\\\Rightarrow y=1$

Two points are $(-3,0),(0,1)$

The blue line represents the function

$5\geq y+x$

at $y=0$

$5=x$

at $x=0$

$y=5$

Two points are $(5,0),(0,5)$

The other two constraints are $x\geq 0$ , $y\geq 0$ . So, the point has to be in the first quadrant

From the graph it can be seen there are two points where the function will be maximum let us check them.

$(3,2)$

$7x-2y=7\times 3-2\times 2=17$

$(5,0)$

$7x-2y=7\times 5-2\times 0=35$

So, the maximum value of the function is $35$ .

3 0

2 years ago

Find the solution to the system of equations graphed here.

tiny-mole [99]

This can be solved by finding their point of intersection on the graph, which is at point (1,3).

5 0

3 years ago

Read 2 more answers