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3 years ago

Pls help! Consider graphing the linear inequality y>2x-1 on the coordinate plane. Which statement is true?

Mathematics

1 answer:

olga55 [171]3 years ago

4 0

Step-by-step explanation:

given the linear inequality y >2x-1 on the coordinate plane.

the true statement is:

C. The graph will have a DASHED boundary line, with shading ABOVE.

for '>' meaning dashed line

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Express 5/6 as a decimal work it out step by step?

Papessa [141]

Answer:

0.83

Step-by-step explanation:

All fractions are division problems, so you just need to divied 5 by 6. You get 0.83333333 but you can round it to 0.83.

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3 years ago

Alex is saving money because she would like to purchase the new video gaming system, after 2 weeks of saving she has $47 after 2

Dima020 [189]

First off we need figure out approximately how much she made in between weeks 2 and 24.

430 - 47 = 383. So now we know she made 383 dollars in 22 weeks. Then just divide your answer with the number of weeks.

383÷22=17.409 | which rounds up to B.) 17.41

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3 years ago

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Please help I’m a bit confused on this I appreciate answers!

Afina-wow [57]

Answer:

$(2x^3)^3=8\cdot x^{9}$

Step-by-step explanation:

<u>Properties of Exponents</u>

The property called Power to a Power shows us how to simplify expressions of the type:

$(x^n)^m=x^{n*m}$

Similarily the property called Power of a product simplifies expressions like:

$(x.y)^n=x^n.y^n$

The company mentioned in the question uses the expression

$(2x^3)^3$

millimeters per second to calculate the maximum capacity of a photocell with an area of x^3 square millimeters.

First, use the power of a product property:

$(2x^3)^3=2^3\cdot (x^3)^3$

Now use the power to a power property:

$(2x^3)^3=2^3\cdot x^{3*3}$

Operate:

$\mathbf{(2x^3)^3=8\cdot x^{9}}$

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3 years ago

The weight of the giraffe is .8 the weight of the hippo the hippo weights 2.5 tons how much does the giraffe weight?

Mama L [17]

Answer:

2 tons

Step-by-step explanation:

0.8 x 2.5=

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3 years ago

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Solve x2 + 10x + 7 = 0 by completing the square.<br><br> Which equation is used in the process?

BaLLatris [955]

$x^2+10x+7=0\ \ \ \ |subtract\ 7\ from\ both\ sides\\\\x^2+2x\cdot5=-7\ \ \ |add\ 5^2\ to\ both\ sides\\\\x^2+2x\cdot5+5^2=-7+5^2\ \ \ |use\ a^2+2ab+b^2=(a+b)^2\\\\(x+5)^2=-7+25\\\\(x+5)^2=18\iff x+5=\pm\sqrt{18}\\\\x+5=-\sqrt{18}\ or\ x-5=\sqrt{18}\\\\x+5=-\sqrt{9\cdot2}\ or\ x-5=\sqrt{9\cdot2}\\\\x+5=-\sqrt9\cdot\sqrt2\ or\ x-5=\sqrt9\cdot\sqrt2\\\\x+5=-3\sqrt2\ or\ x-5=3\sqrt2\ \ \ |subtract\ 5\ from\ both\ sides\\\\\boxed{x=-5-3\sqrt2\ or\ x=-5+3\sqrt2}$

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3 years ago

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