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3 years ago

If a car is traveling at 120 km/s within 120 min, what is its distance? (Remember: 60 seconds = 1 min. 120 km = 120,000 m) *

Mathematics

1 answer:

Nitella [24]3 years ago

3 0

Answer:

$d=864\times 10^6\ m$

Step-by-step explanation:

Given that,

Speed of a car, v = 120 km/s

It takes 120 minutes

v = 120000 m/s

t = 7200 s

We need to find the distance covered. Speed is given by :

v = distance/time

$d=v\times t\\\\d=120000\ m/s\times 7200\ s\\\\d=864\times 10^6\ m$

So, the distance covered is $864\times 10^6\ m$ .

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(WILL GIVE BRAINLIEST IF CORRECT)

Alex

Answer:

C. 40

Step-by-step explanation:

20 + 4x = 180

subtract 20 from both sides

4x = 160

Divide both sides by

x = 40

6 0

2 years ago

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If u = 2i - j; v= -5i + 4j and w = j find 4u (v -w).

Sedaia [141]

Answer:

-40

Explanation:

Given

u = 2i - j; v= -5i + 4j and w = j

Required

4u(v-w)

4u = 4(2i) = 8i

v - w = -5i + 4j - j

v - w = -5i + 3j

Substitute

4u(v-w)

= 8i(-5i+3j)

= -40(i*i) [since i*i = 1]

= -40

Hence the required solution is -40

5 0

1 year ago

I don't know what is 4309/73

Alisiya [41]

Step-by-step explanation:

59 2/73

or 59.02 as the answer

4 0

2 years ago

Read 2 more answers

5x+17=-8 solve the equation

kirill115 [55]

5x=-8-17

5x=-25

x=-25/5

x=-5

7 0

2 years ago

SMART STUDENT PLEASE NEED GOOD MATH STUDENT

tangare [24]

Answer:

Therefore 'x' is equal to 65.4°

Step-by-step explanation:

In Right Angle Triangle ABC

∠ B = 90°

AC = Hypotenuse = 12

CB = Adjacent Side = 5

To Find:

∠ C = x

Solution:

In Right Angle Triangle ABC Cosine Identity we have

$\cos C = \frac{\textrm{side adjacent to angle C}}{Hypotenuse}\\$

Substituting the values we get

$\cos C = \dfrac{CB}{AC}=\dfrac{5}{12}$

$\angle C = \cos^{-1}(0.4166)=65.37=65.4\°$

Therefore 'x' is equal to 65.4°

8 0

2 years ago