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2 years ago

15

Rewrite the equation x + y + 3 = -2x + 4y + 18 into general form

1 answer:

dolphi86 [110]2 years ago

5 0

Answer:

x-y=5 just solve it to get the answer

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The graph of a quadratic function touches, but does not cross, the x-axis at x = 4. Which function represents this situation?

jek_recluse [69]

When a zero of a function does not cross the x-axis but touches it, this means that the zero is a "double root". It has two of the same factor (x - 4)^2 and two of the same zeros, x = 4 and x = 4
f(x) = x^2 - 8x + 16 would be the function with a double root at 4

5 0

3 years ago

Read 2 more answers

Find the equation of the line containing the point (-3,5) and having slope: 4

alina1380 [7]

Answer: d) y=4x+17

remember y=mx+b

good luck

5 0

2 years ago

Change the expression to a single square root, or its opposite:

aleksley [76]

Answer:

a) $2\sqrt{2}=\sqrt{8}$

b) $-7\sqrt{3} =-\sqrt{147}$

c) $\frac{1}{3} \sqrt{18b} =\sqrt{2.b}$

d) $5\sqrt{y} =\sqrt{25y}$

e) $-6\sqrt{2a} =-\sqrt{72a}$

f) $-0.1\sqrt{200c}=- \sqrt{2c$

Step-by-step explanation:

a) $2\sqrt{2}=( \sqrt{2} )^2.\sqrt{2}=(\sqrt{2})^3 = \sqrt{2^3} =\sqrt{8}$

b) $-7\sqrt{3} =-(\sqrt{7} )^2\sqrt{3} =-\sqrt{7^2.3} =-\sqrt{147}$

c) $\frac{1}{3} \sqrt{18b} =\frac{1}{3} \sqrt{9.2.b} =\frac{1}{3} \sqrt{3^2.2.b} =\frac{1}{3} \times 3\sqrt{2.b} =\sqrt{2.b}$

d) $5\sqrt{y} =\sqrt{5^2} \sqrt{y}=\sqrt{25y}$

e) $-6\sqrt{2a} =-\sqrt{6^2}\sqrt{2a} = -\sqrt{36.2a} =-\sqrt{72a}$

f) $-0.1\sqrt{200c}=-\frac{1}{10} \sqrt{10^2.2c} =-\frac{1}{10}\times10 \sqrt{2c}=- \sqrt{2c$

4 0

3 years ago

10. Suppose you are a salesperson for the Acme Dynamite Company. Each month you earn $400 plus one sixth of your sales.

Liula [17]

<u>ANS</u>

$15600 worth of explosives.

$3000 = $400x

$3000 - 400 ( 1/6x )

$\\ = ( \frac{1}{6} x)$

= $2600

$\\ = ( \frac{1}{6} x)$

= $

$\\ \frac{2600}{ \frac{1}{6} } = x$

$x = 15600$

<u>Th</u><u>ank</u> <u>You</u> !!!!

4 0

2 years ago

"how many seeds are there in a watermelon?" "how much does a telephone weigh?"

Luba_88 [7]

There are 150+ seeds in a watermelon and I don’t know the second question

5 0

2 years ago