Science
What is the SI units for mass,length,and temperature?
GRAMS
METER
KELVIN
Write the expression using an exponent:
y*y*y*y
a.4y
b.y/4
c.4 to the power y
d y to the power 4
d
The base is y.
Count the factors.There are 4.4 is the exponent
so,d
Which of the following describes the expression
( (12/4)+(2*(-2) ) accurately?
a. the sum of the quotient 0f 12 and 4 and the product of 2 and -2
b. the quotient of 12 and 4 plus the difference of the product of 2 & 2
c. the quotent of 4 and 12 plus the product of 2 and -2
d. the difference 0f 2 times -2and the quotent of 12 and 4
a
(12/4)=the qoutient of 12/4
+ =sum
(2*(-2)) the product of 2 and minus 2
(12/4)+(2*(-2)) The sum of the quotient of12 and 4 and the product of 2 and -2
Define Bias (in scientific research)
A bias in having a special interest that prevents you from being objective or conducting a fair test of your hypothesis
Simplify 4 to the power 3* 4 to the power 2
a. 20
b. 9
c. 4 to the power 5
d. 20
c
4*4*4*4*4
so 4 to the power 5
Translate the following and then solve : "A number n times 16 is equal to 48)
a. 16n=48,n=4
b. 16n=48,n=8
c. 16+n=48,n=32
d. 16n=48,n=3
d
a number n times 16 is equal to 48
a number n times 16:16n
is equal to:=
16n=48
n=3,since 16(3)=48
What is the easiest tool to measure Mass?
An Electronic Balance
what are the coefficient in the expression (2x+15)(9x-3)?
a. 2,15,9,-3
b.15,3
c.15,-3
d. 2,9
d
A coeeficient is the number multiplied by a variable.In this expression,there are 2 variable terms,2x and 9x.The coefficient s are 2 & 9
Which of he following means the same as 3(2+1)?Select all the correct answers.
a. (2+1)+(2+1)+(2+1)
b. 6+3
c. 3+2+1
d. (6+1)+(6+1)+(6+1)
e. none of the above
a and b
What holds the specimen when you use a MICROSCOPE?
A Slide
Which number is acting as a coefficient in this expression?
360+22x-448
a. 360
b. 22
c. 448
d. none of these
b
A number joined to a variable through multiplication is a coefficient.22 is the coefficient of x
What is the value of y in the equation y=1/4x / 2,when x=32
a. 2
b.4
c. 8
d. 10
b
What is Viscosity
Resistance to flow
Translate the following "Four times a number n is equal to the difference between that number and 10"
a. 4n=10-n
b.4+n=10*n
c. 4/n=n+10
d. 4n=n-10
d
4 times a numbern means to multiply the variable n by 4,4n is equal to means=
the difference between a number and 10 means to write the substraction as is,from left to right,so n-10.
Therefore,4n=n-10
Evaluate the following expression when c=-3 and d=2:
6/d-10c-c to the power 4
a. -108
b. -48
c. 39
d. 114
b
6/d-10c-cto the power 4
6/2-10(-3)-(-3)to the power 4
6/2-10(-3)-(81) exponents
3-10(-3)-(81) Divide
3-(-30)-(81) multiply
3+30-(81) change to adding
33-(81) add
-48 substract
Describe some reasons why you might be critical of scientific finding.
The person or group conducting the experiment is biased, the data seems unreasonable, and/or the results are not replicable
Which of the following represents the phrase "the quotient of 17 and q"?Select all the correct answers
a. q/17
b. 17/q
c. 17/q
d.q/17
b & c
The order of the numbers should match the phrase
which expression is equivalent to 8a+9-3(a+4)?
a. 32-3a
b. a
c. 24a
d. 5a-3
d
First use the DISTRIBUTIVE PROPERTY to remove the parentheses:
8a+9-3(a+4)=8a+9-3a-12
Then, combine like terms:
8a+9-3a-12=(8a-3a)+(9-12)=5a+(-3)=5a-3
What do 2 or more atoms combine to form?
A Molecular Compound
How many factors are in the following expression,
4(6+8)*3(2-5)
a. 2
b. 4
c. 5
d. 6
b
A Factor is a term Multiplied by another term.In this expression we have four factors 4,(6+8),3 and (2-5)
Which inequality has the same solution set as 3(q+6)>11
a. 3q+18<11
b. 3q+18>11
c. 3q+6>11
d. q+18>11
b
The DISTRIBUTIVE PROPERTY states that a number outside of parenthesis should be used to multiply all numbers inside the parenthesis.The inequality symbol SHOULD NOT CHANGE.
So,the correct answer is b