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3 years ago

Help solve 11 and 13 thanks mostly 11 xx

Mathematics

1 answer:

Gala2k [10]3 years ago

8 0

Answer:

i also dont know

Step-by-step explanation:

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What is the solution of sqareroot 1-3x = X+3?

Nezavi [6.7K]

Answer:

x=-8 or x=-1 (first option)

Step-by-step explanation:

$\sqrt{1-3x}=x+3\\1-3x=(x+3)^{2} \\$

now expand the bracket on the right

$1-3x=x^{2} +6x+9\\simplify:\\1-9=x^2+6x+3x\\-8=x^2+9x\\$

now make it a quadratic equation:

$x^2+9x+8=0\\factorise:\\(x+1)(x+8)\\so:\\x+1=0 \\x=-1\\\\and \\x+8=0\\x=-8$

3 0

3 years ago

Please help! Determine where f(x) = g(x) by graphing.

Sloan [31]

Answer:

Step-by-step explanation:

We can point plot to get graph of both the functions.

<u><em>** Attached is the graph of both the functions. f(x) is in RED & g(x) is in BLUE.</em></u>

From the graph shown, it is clear that the point of intersection is x = 4, y = 2

So f(x) = g(x) at the point x = 4

Answer choice C is right.

4 0

3 years ago

Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar. She adds 5 groups. What number does she say?

Vaselesa [24]

5 that is the answer to your question

3 0

3 years ago

Read 2 more answers

Jestions: 5

guapka [62]

Answer:

I believe 2/7

Step-by-step explanation:

When you make them the same denominator they look like 48/84 > 24/84 and that's how you get the answer

8 0

3 years ago

What is the additive inverse of -3.2?

Serhud [2]

Answer:

3.2

Step-by-step explanation:

The additive inverse is what do we add to make it zero

x + -3.2 =0

Add 3.2 to each side

x+-3.2+3.2 = 0+3.2

x = 3.2

The additive inverse is 3.2

8 0

4 years ago