All categories

2 years ago

Add the two expressions. -6.56 +11 and 3.30 - 2 Enter your answer in the box Pls help

Mathematics

1 answer:

RUDIKE [14]2 years ago

5 0

Answer:

5.74

Step-by-step explanation:

You might be interested in

Gcf of 12x^5y and #2x^6y

Murrr4er [49]

Greatest common factor is 1 for the first one and the second one is also 1

8 0

3 years ago

Use the slope formula to determine the slope of the line.

lukranit [14]

Answer:

we have two points

(0,4) and (3,-1)

m=(-1-4)/(3-0)

m=-5/3

5 0

3 years ago

A car has mass 1500 kg and is traveling at a speed of 35 miles/hour. what is its kinetic energy in joules? (Be sure to convert m

photoshop1234 [79]

Answer:

Factor by which kinetic energy increase = 4 times

Step-by-step explanation:

Given,

Mass of the car, v1 = 1500 kg

initial speed of car = 35 miles/h

$=\dfrac{35\times 1609.34}{3600}\ m/s$

= 15.64 m/s

Initial kinetic energy of the car is given by,

$k_1\ =\ \dfrac{1}{2}.m.v_1^2$

$=\ \dfrac{1}{2}\times 1500\times (15.64)^2\ joule$

= 183606.46 J

Final velocity of car v2 = 70 miles/hour

$=\dfrac{70\times 1609.34}{3600}$

= 31.29 m/s

So, final kinetic energy of car is given by

$k_2\ =\ \dfrac{1}{2}.m.v_2^2$

$=\ \dfrac{1}{2}\times 1500\times (31.29)^2$

= 734425.84 J

Now, the ratio of final to initial kinetic energy can be given by,

$\dfrac{k_2}{k_1}=\ \dfrac{734425.84}{183606.46}$

$=>\ k_2\ =\ 4k_1$

Hence, the kinetic energy will increase by 4 times.

7 0

3 years ago

A square has an area of 100 in ^2. What is the perimeter of the square

almond37 [142]

Area of a square is its side length squared...

A=s^2 solving for s...

s=√A

The perimeter of a square is 4 times its side length...

P=4s, and since s=√A

P=4√A, and we are told that A=100 in^2 so

P=4√100

P=4*10

P=40 in

6 0

3 years ago

The table shows the population of a small town over time. The fiction p=10,550(1.1) models the time population x year after the

Salsk061 [2.6K]

Answer:

$7 \times (8 + 9) - 6 \times (2000 + 1700) = 19000.02$

That is the answer you are looking

6 0

3 years ago