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3 years ago

Factor please !! 4x2 + 12x = 40

Mathematics

1 answer:

Serga [27]3 years ago

5 0

Answer:

x=8/3

Step-by-step explanation:

8+12x=40

12x=32

6x=16

3x=8

x=8/3

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HELP there due to tomorrow :/

Cerrena [4.2K]

Answer:

First Answer:

$15,060.

Second Answer:

9.96 miles.

Third Answer:

$3.27.

Step-by-step explanation:

First Question:

Cost of the rented car = 50 + 0.20 = $50.20

How much did Matt's family spend for the car:

1 mile = $50.20

300 miles = ?

300 × 50.20

= $15,060.

Second Question:

If Hayden spent $500 for her rented car, how many miles did she drive:

$50.20 = 1 mile

$500 = ?

500 ÷ 50.20 = 9.96 miles.

Third Question:

What is the cost per gallon of gas:

24 gallons = $78.48

1 gallon = ?

78.48 ÷ 24 = $3.27.

5 0

3 years ago

What is the volume of a sphere with a diameter of 12 cm

labwork [276]

905 is the answer hope it helps

4 0

3 years ago

John gets a new job and receives a $600 signing bonus. After that, he makes $250 a day. what is the slope and whats the y interc

anastassius [24]

Slope= 250
Y Intercept= 600

7 0

3 years ago

Read 2 more answers

How many distinct positive integer-valued solutions exist to the equation (x2 - 7x + 11)(x2 - 13x + 42) = 1

Anna35 [415]

Answer:

The given equation has TWO positive integer valued solutions, {6, 7}

Step-by-step explanation:

Here we are given two trinomial factors, each of which needs to be set equal to zero and in each case the resulting quadratic equation solved.

(x^2 - 7x + 11) has the coefficients {1, -7, 11}, and so the discriminant of this quadratic is b^2 - 4(a)(c), or 49 - 4(11), or 5.

Because this discriminant is positive, we know immediately that this quadratic has two real, unequal roots involving √5 (NO integer roots).

Next we focus on (x^2 - 13x + 42). The discriminant is b^2 - 4(a)(c), or

169 - 168, or 1. Again we see that there are two real, unequal roots:

+13 ± √1 +13 ± 1

x = --------------- or x = -------------

2 2

OR x = 14/2 = 7 (integer) or x = 12/2 = 6 (integer).

The given equation has TWO positive integer valued solutions, {6, 7}

5 0

3 years ago

On april 1 of the current year, a company purchased and placed in service a machine with a cost of $240,000. the company estimat

Viktor [21]

The answers to the questions are:

a. $33,750
b. $36000
c. $90000

a. the straight-line method of depreciation

$\frac{cost of machine - salvage}{useful life} * period$

= (240000 - 60000) / 4 * (9 / 12)

= $33,750

The debit is 33750 as well as the credit

b. the units-of-production method of depreciation

(240000 - 60000) / 60000 * 12000

= $36000

c. the double-declining balance method of depreciation

(24000 *2 /4) * (9/12)

= $90000

Read more on depreciation here: brainly.com/question/1203926

#SPJ1

8 0

2 years ago