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3 years ago

4x = 18-y, if x=2 and y=6

1 answer:

3 0

If you're using substitution, solve for the first variable in one of the equations, then substitute the result into another equation. your answer is no solution:

x = 2 ; y = 6

4x = 18 - y
4 (2) = 18 - 6
8 = 12

8 does not equal 12, there is no solution

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Three students were given the expression shown and were asked to take a common factor out of two of the terms. Use the drop-down

Tomtit [17]

Answer:

Calvin: incorrect, sign error

Greg: incorrect, has no relationship to the given expression

Ruben: incorrect, sign error

Equivalent expression: 7 92(4x -11)

Step-by-step explanation:

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3 years ago

If a rabbit can move 2 1/4 miles every hour, then how many hours would it take for the rabbit to go 9 miles

d1i1m1o1n [39]

It would take 4 hours to go 9 miles.

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3 years ago

P and q are complex numbers such that ∣p∣ = 2/5 x + 2 , ∣q∣ = −3/4 x − 1 , and ∣p+q∣ = 2x + 4 .

Leya [2.2K]

Answer: (b)

Step-by-step explanation:

Given

$\left | p\right |=\dfrac{2}{5}x+2$

$\left | q\right |=\dfrac{-3}{4}x-1$

$\left | p+q\right |=2x+4$

for two complex number, $z_1,z_2$

Apply the above the property

$\Rightarrow 2x+4\leq \dfrac{2}{5}x+2-\dfrac{3}{4}x-1\\\\\Rightarrow 2x+4\leq \dfrac{8x-15x}{20}+1\\\\\Rightarrow 2x+3\leq -\dfrac{7x}{20}\\\Rightarrow x\leq -\dfrac{60}{47}$

Also, the absolute value of each complex number must be greater than or equal to zero

$\text{Case-1}\\\\\Rightarrow \dfrac{2}{5}x+2\geq 0\\\\\Rightarrow x\geq -5\\\\\text{Case-2}\\\\\Rightarrow -\dfrac{3}{4}x-1\geq 0\\\\\Rightarrow x\leq -\dfrac{4}{3}\\\\\text{Case-3}\\\\\Rightarrow 2x+4\geq 0\\\Rightarrow x\geq -2$

Taking the intersection of the above values of x, we get

$x\in [-2,-\dfrac{4}{3}]$

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3 years ago

What number is 10/16 of 96?

vichka [17]

Answer:

46/69

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

I need help on number 1 someone please help me and SHOW YOUR WORK

Tom [10]

Square has 4 sides so you would use 16 1/8 inches of ribbon per side.

So that's 16 1/8 + 16 1/8 + 16 1/8 + 16 1/8 = 64 4/8 = 64 1/2

Final answer: 64 1/2 inches

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3 years ago