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3 years ago

Which of the following combined with the equation −9x + 3y = 12 creates a system of linear equations with no solution?

Mathematics

1 answer:

Mumz [18]3 years ago

8 0

Answer:

Step-by-step explanation:

You can't get an exact answer to this because there are no choices.

Add 9x to both sides.

3y = 9x + 12 Divide by 3

3y/3 = 9x/3 + 12/3 Combine

y = 3x + 4

Now to get anything at all that is parallel to this and providing no answer because there is no intersection of the two lines, just change the 4 to something else. Here's one example

y = 3x + 8

As long as the number in front of the x's is the same, they are parallel with no point in common.

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Simplify (7^5)^3 A.7^8 B.(1/7)^15 C.35^3 D.7^15

oksano4ka [1.4K]

Answer:

$\red{{7}^{15} }$

Step-by-step explanation:

We know that,

${x}^{a} \times {x}^{b} = {x}^{a + b} \\ ( {x}^{a} ) ^{b} = {x}^{ab}$

Accordingly,

$( {7}^{5} ) ^{3} \\ {7}^{5 \times 3} \\ {7}^{15}$

8 0

2 years ago

Evaluate the expression below when x = 4 and y = 12. 5х^2 — Зу

Zina [86]

Answer:

Step-by-step explanation:

x = 4 and y = 12.

5х² - 3у

20x - 3y

80 - 36

8 0

3 years ago

The circle passes through the point (−2, 3) with a center of (-4,6). What is its radius?

Ganezh [65]

Answer:

radius = √13

Step-by-step explanation:

Forming the equation :

(x - h)² + (y - k)² = r²

(x, y) = point on circle
(h, k) = center of circle
r = radius

Solving :

(-2 + 4)² + (3 - 6)² = r²
r² = 4 + 9
radius = √13

7 0

2 years ago

Please i need help realy fast or i will fail this semester

katrin2010 [14]

Y=mx+b
m=slope
b=yintercept

given
y=-2x+3 and
y=-4x-1

first equation is slope -2 and yintercept 3
second is slope -4 and yintercept -1

3rd option

8 0

3 years ago

Read 2 more answers

John is driving to his office to attend a meeting. In the first 10 minutes, he covers a distance of 1 mile every minute. Then he

Georgia [21]

Answer:

The total distance cover by John is 15 min to reach his office .

Step-by-step explanation:

Given as ;

In the first 10 minutes , the distance cover is 1 miles every minutes

So, for 10 minutes , total distance cover by John = 10 × 1 = 10 miles

Again ,

John cover distance of 0.5 miles for every minutes , he travel for next 10 min

So, for next 10 min, total distance cover by John = 10 × 0.5 = 5 miles

So, The total distance cover by john = 10 miles + 5 miles = 15 miles

Hence The total distance cover by John is 15 min to reach his office . Answer

5 0

3 years ago