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2 years ago

Help pls im on a timed test * For people who search it up (3x)^3=3^1

Mathematics

1 answer:

wel2 years ago

6 0

Answer:

Option D. x = -2

Step-by-step explanation:

Given equation:

$(3^x)^3 = 3^1$ .

$(3^3^+^(^-^2^)) = 3^1$

$= 3^1$ .

Your answer will be Option D.

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What is the degree of the following polynomial? 4x^2+2x+7

adelina 88 [10]

The degree of the polynomial is 2.

to find the degree, put the polynomial in descending order with the highest exponents in front. the highest exponent is the degree.

3x^6 - 4 (highest exponent here is 6, degree would be 6)

6 0

3 years ago

suppose that x and y vary inversely and x=1 when y=12. write a function that models the inverse variation. graph the function an

larisa [96]

Answer:

y=12/x

Step-by-step explanation:

if y=12, and x=1 so

general formula y=12/x

for x=5 , y=12/5=2.4

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6 0

2 years ago

The Tran family and the Green family each used their sprinklers last summer. The water output rate for the Tran family's sprinkl

ser-zykov [4K]

Answer:

Tran family's sprinkler was used for 20 hours

Green's family's sprinkler was used for 30 hours

Step-by-step explanation:

Let the hours for which Tran family's sprinkler used is x hours

water output rate for the Tran family's sprinkler = 35L per hour

water output from Tran family's sprinkler in x hours = 35*x L = 35x

Let the hours for which Green family's sprinkler used is y hours

water output rate for the Green family's sprinkler = 40L per hour

water output from Green family's sprinkler in x hours = 40*y L = 40y

Given

The families used their sprinklers for a combined total of 50 hours

thus

x + y = 50 -------------------equation 1

y = 50-x

total water output of 1900L

35x+40y = 1900 -------------------equation 1

using y = 50-x in equation 2, we have

35x + 40(50-x) = 1900

35x + 2000 - 40x = 1900

=> -5x = 1900 - 2000 = -100

=> x = -100/-5 = 20

y = 50-20 = 30

Thus,

Tran family's sprinkler was used for 20 hours

Green's family's sprinkler was used for 30 hours

4 0

3 years ago

A line passes through the points (5, –7.5) and has a y-intercept of 10. Which line has a rate of change that is less than this l

mafiozo [28]

It should be y=0.5x+10

3 0

3 years ago

Read 2 more answers

Find the quotient of -85^2-27n+76 / -17n-19

bagirrra123 [75]

Answer:
5n-4

Explanation:
The given expression is:
$\frac{-85n^2-27n+76}{-17n-19}$

1- Take the negative as a common factor from both the numerator and the denominator. This will give us:
$\frac{-(85n^2+27n-76)}{-(17n+19)}$

2- Cancel out the negative sign (common factor) from the numerator and denominator. This will give us:
$\frac{(85n^2+27n-76)}{(17n+19)}$

3- Factor the numerator. This wil give:
$\frac{(5n-4)(17n+19)}{(17n+19)}$

4- Finally, cancel out the (17n+19) which common in both numerator and denominator. This will give us the final expression:
5n-4

Hope this helps :)

6 0

3 years ago