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borishaifa [10]

2 years ago

5

Students in the science lab are measuring the mass of an object on a triple beam balance. The object has a mass of 38 grams. Com

plete the table below with the absolute and percent error for each students’ measurement. Round your answer to the nearest tenths place.

1 answer:

const2013 [10]2 years ago

5 0

Answer:

Step-by-step explanation:

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Out of 138 seventh graders, 86 voted math was their favorite subject. What percent is this?

babymother [125]

Answer:

62%

Step-by-step explanation:

3 0

3 years ago

If the quadratic formula is used to solve 2x(x + 5) = 4, what are the solutions? {-1/2, -9/2}

ankoles [38]

X²+bx=c
x=[-b+√(b²+4c)]/2

2x(x+5)=4
2x²+10x=4
x²+5x=2

x=[-5+√(5²+4*4)]/2

if b=-1/2 and c=-9/2
x= {1/2+√[(1/2)²+4*(-9/2)]}/2

7 0

3 years ago

Read 2 more answers

three african elephants can weigh a total of 13,500 pounds. at this rate, how many do 2 african elephants weigh?

lidiya [134]

Answer:

Step-by-step explanation:

13500/3 = 4500

4500 x 2 = 9000

7 0

2 years ago

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Assume that 10 people, including the husband and wife pair, apply for 4 sales positions. People are hired at random.. . What is

skelet666 [1.2K]

Possible outcomes: 10C4 = 210 ( combinations - we choose 4 of 10 people )
Favorable outcomes: ( 2C1 ) · ( 8C3 ) = 2 · 56 = 112
Probability : 112 / 210 = 0.5333 ( or 53.33 % ).

5 0

3 years ago

F(x)=x+7 g(x)=4x^2-9 h(x)=-2x+1 what is the value of g(f(-2)

vovangra [49]

Answer:

g(f(- 2)) = 91

Step-by-step explanation:

Evaluate f(- 2) then substitute the value obtained into g(x), that is

f(- 2) = - 2 + 7 = 5 , then

g(5) = 4(5)² - 9 = 4(25) - 9 = 100 - 9 = 91

7 0

3 years ago