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3 years ago

Jimmy thought he had purchased 7 folders, but purchased 6. What was his percent error?

Mathematics

1 answer:

OleMash [197]3 years ago

4 0

Answer:

Step-by-step explanation:

Percent Error = | Actual Yield-Theoretical/ Theoretical Yield | *100%

Error= |-1/7|*100%= 14.29%

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Help i will give brainlist

Arisa [49]

Answer:

3. 2/10 4/20 3/15

4. 12/1 48/4 36/3

Step-by-step explanation:

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3 years ago

Use the Associative Property of Addition to find the total of 4, 12, and 18 in two different ways.

Alex Ar [27]

4, 12, and 18 in two different ways

(4 + 12) + 18 = 16 + 18 = 34

4 + (12 + 18) = 4 + 30 = 34

answer is B) (4 + 12) + 18 = 16 + 18 = 34; 4 + (12 + 18) = 4 + 30 = 34 (second choice)

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3 years ago

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Cube M has an edge length of

jeka57 [31]

Answer:

Step-by-step explanation:

6*(8*2)^2/(6*8^2)=2^2=4

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3 years ago

Lucy wants to be exempt from her semester exam. In order for that to happen, she has to average an 85 over 3 test grades. Her fi

anastassius [24]

Answer:

Grades to be scored in 3rd exam = 88

Step-by-step explanation:

Given that average of 3 numbers is 85.

First two numbers are 81 and 86.

To find:

3rd number so that average is 85

Solution:

Let the third number = $x$

Formula for average is:

$Average = \dfrac{Sum\ of\ numbers}{Total\ count\ of\ numbers}$

Here, sum of numbers = $81+86+x =167+x$

Total count of numbers = 3

$85 = \dfrac{167+x}{3}\\\Rightarrow x=255-167\\\Rightarrow \bold{x=88}$

Grades to be scored in 3rd exam = 88

8 0

3 years ago

Find a polynomial f(x) of degree 4 that has the following zeros. 7, −3, 0, −2

HACTEHA [7]

Answer:

x^4 - 2x^3 - 29x^2 - 42x

Step-by-step explanation:

Equal all the zeros to x then move them over.

x=7,x=-3,x=0,x=-2

x-7,x+3,x+0,x+2

Then multiply each factor

(x-7)(x+3)(x)(x+2)

x^4 - 2x^3 - 29x^2 - 42x

7 0

3 years ago