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3 years ago

How do I solve that equation

Mathematics

2 answers:

Masteriza [31]3 years ago

6 0

I belive it would be A

rewona [7]3 years ago

3 0

Solving: (5)(3 - 1) + 4

Step One: Subtract 1 from 3 which is 2
5(3 − 1) + 4

Step Two, Multiply 5 by 2 which is 10=(5)(2) + 4

Step Three, Add 4 to 10 which is 14=10+4

=14

Answer:
(A)14

Hope this helps!

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A 5,400 W motor is used to work. If the motor is used for 640s, about how much work could it do?

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3 years ago

Simplify the algebraic expression by combining the like (or similar) terms -3+5y+9

USPshnik [31]

Answer:

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Step-by-step explanation:

-3 and 9 are like terms which can be simplified to 6.

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radio signals travel at a rate of 3 x 10^8 meters per second. how many seconds will it take for a radio signal to travel from a

zvonat [6]

Answer:

$time=1.2\times 10^{-1}\ second$

Step-by-step explanation:

Given:

The speed of the radio is $3\times 10^{8}$ meters per second.

The distance of the satellite from the earth is $3.6\times 10^{7}$ meter

The formula of the speed is

$speed = \frac{distance}{time}$

For time the formula is.

$time = \frac{distance}{speed}$

put distance and speed value in above equation.

$time = \frac{3.6\times 10^{7}}{3\times 10^{8}}$

$time = \frac{1.2 x 10^{7}}{10^{8}}$

$time=1.2\times 10^{7}\times 10^{-8}$

$time=1.2\times 10^{7-8}$

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4 years ago

What is the factor of 6a2 – 19a + 10 ???

Dimas [21]

Answer:

(2a - 5) • (3a - 2)

step by step explanation:

Step-1 : Multiply the coefficient of the first term by the constant 6 • 10 = 60

Step-2 : Find two factors of 60 whose sum equals the coefficient of the middle term, which is -19 .

-60 + -1 = -61

-30 + -2 = -32

-20 + -3 = -23

-15 + -4 = -19 That's it

Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above, -15 and -4

6a2 - 15a - 4a - 10

Step-4 : Add up the first 2 terms, pulling out like factors :

3a • (2a-5)

Add up the last 2 terms, pulling out common factors :

2 • (2a-5)

Step-5 : Add up the four terms of step 4 :

(3a-2) • (2a-5)

Which is the desired factorization

Final result :

(2a - 5) • (3a - 2)

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