3 years ago

Help me plz !! need it plz

Mathematics

1 answer:

liraira [26]3 years ago

5 0

Answer:

5x-15

Step-by-step explanation:

Product means multiply, so that would just make it 5x. Less than means subtract. So its 5x-15.

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An article gave the following summary information for fracture strengths (MPa) of n = 196 ceramic bars fired in a particular kil

Oliga [24]

Answer:

54.80 MPa to 55.92 MPa

Step-by-step explanation:

Sample mean fracture strength (x) = 55.36 MPa

Sample standard deviation (s) = 3.99 MPa

Sample size (n) = 196.

The upper and lower bounds for a 95% confidence interval are given by:

$U=x+1.960*\frac{s}{\sqrt{n}} \\L=x-1.960*\frac{s}{\sqrt{n}}$

The upper and lower bounds of the confidence interval are;

$U=55.36+1.960*\frac{3.99}{\sqrt{196}}\\U= 55.92\\L=55.36-1.960*\frac{3.99}{\sqrt{196}}\\L= 54.80\\$

The 95% confidence interval for true average fracture strength is 54.80 MPa to 55.92 MPa

4 0

4 years ago

Which expression is equivalent to 8 (9 + x)?

jasenka [17]

Answer:

72 + 8x

you would multiply 8 by 9 + x

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3 years ago

The formula for converting celsius to fahrenheit is F = 9/5C+32.

NISA [10]

Step-by-step explanation:

thats is all,just subject of formula

7 0

1 year ago

Easy and simple but i don’t know which one goes to which. please help

Llana [10]

Answer:

They are placed in right order (quite interesting).

Step-by-step explanation:

Just drag each answer choice as they are placed.

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3 years ago

A small half bath measures 42 inches by 48 inches.What is the square footage of the half bath?

Mkey [24]

A=LW, we are told that the dimensions are 42 and 48 so:

A=42*48

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3 years ago

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