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3 years ago

Find the output for each input of y = 2x – 1.

Mathematics

1 answer:

Jlenok [28]3 years ago

5 0

1) False. You'd substitute -1 in for x, not y.
2) The scale factor is 1ft=14ft so true.
3) The first is a direct variation since y=6x is true.
4)The airplane would be 132ft in real life.
5) None of the functions made sense with the graph. I didnt really know what "thing" you were talking about on that one.

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First to help gets marked brainliest!!

Lubov Fominskaja [6]

Answer:

x: -8, -4, 0, 4

y: 6, 4, 2, 0

Equation: y = 2 - 0.5x

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2 years ago

A local carpet company has been hired to carpet a planetarium which is in the shape of a circle. If the radius of the planetariu

dem82 [27]

We are given radius = 6 yards

area of circle = pi * r * r = 3.14 * 6*6 = 113.04 yard square

cost of carpet is $14 per square yard

cost of 113.04 square yard = 14*113.04= 1582.56 dollars

Answer: cost to carpet the planetarium is $1582.56

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2 years ago

Simplify the expression

kow [346]

Answer:

Step-by-step explanation:

$\dfrac{5x^3-8x^2-4x}{6x^2-18x+12}\\\\6(x^2-3x+2)\ne0\ \iff\ x=\frac{3\pm\sqrt{9-8}}{2}\ne0\ \iff\ x\ne2\ \wedge\ x\ne1\\\\\\\dfrac{5x^3-8x^2-4x}{6x^2-18x+12}=\dfrac{x(5x^2-8x-4)}{6(x^2-3x+2)}=\dfrac{x(5x^2-10x+2x-4)}{6(x^2-2x-x+2)}=\\\\\\=\dfrac{x[5x(x-2)+2(x-2)]}{6[x(x-2)-(x-2)]} =\dfrac{x(x-2)(5x+2)}{6(x-2)(x-1)}=\dfrac{x(5x+2)}{6(x-1)}=\dfrac{5x^2+2x}{6x-6}\\\\\\f(x)=5x^2+2x\\\\g(x)=6x-6$

4 0

2 years ago

Solve the exponent equation for x 7(4x-6)= 1/49

tatiyna

X=1. Chose C. Hoped that will help

4 0

2 years ago

John is a High School principal. He earns $62,299.92 a year and is paid on a semimonthly basis. How much is deducted per pay per

LenKa [72]

Answer alongwith Step-by-step explanation:

<u>1. Social Security</u>

Here Gross income = $62,300

Step 1 Find semiannual income

Semimonthly gross income = $62,300 / 24 = $2595.83

Step 2 Find the social security liability using social security rate and annual income

Social security rate is 6.2%

Social Security Liability = 6.2% x $2595.83 = $160.94 semimonthly payments

Step 3 Find the social security liability using social security rate and annual income

Deduction amount for Social security on monthly basis = $160.94 *2 =

$321.88 per month

<u>2. Medicare</u>

Here Gross income = $62,300

Step 1 Find semiannual income

Semiannual Gross income = $62,300 / 24 = $2595.83

Step 2 Find the social security liability using Medicare rate and annual income

Medicare rate is 1.45%

Medicare Liability = 1.45% x $2595.83 = $37.64 semimonthly payments

Step 3 Find the social security liability using Medicare rate and annual income

Deduction amount for Social security on monthly basis = $160.94 *2

= $75.28 per month

8 0

2 years ago