The formula for density is d = m/v.
d = density
m = mass
v = volume
The volume of the rock is 15 cubic centimeters.
The mass of the rock is 45 grams.
Now just plug these into the formula and solve.
d = 45/15.
45/15 = 3.
The density of the rock is 3 grams per cubic centimeters.
Mass of the rock = 45 g
Volume of the rock = 15 cubic cm
Formula:Density = Mass / Volume
Explanation:By putting the respected values, we get
Density = 45 g / 15 cubic cm = 3 gram/cubic centimeter
Answer:Density of the rock is 3 gram/cubic centimeter.
Question 1 of 10
Which algebraic expression represents this phrase?
the product of 40 and the distance to the finish line
OA. 40-d
OB. 40+ d
OC. 40-d
D. 4000
Answer:
None of the option match the answer
40 × d
Step-by-step explanation:
The product of two numbers is the result you get when you multiply them together. so product of 40 and d is 40×d
Evaluate A^2-B^2 for A = 3 and B = -4
A.) -7
B.) -2
C.) 25
Answer:
A.) -7
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightStep-by-step explanation:
Step 1: Define
A² - B²
A = 3
B = -4
Step 2: Evaluate
Substitute: 3² - (-4)²Exponents: 9 - 16Subtract: -7A teacher bought a packet of 17 batteries. Each calculator uses 3 batteries. How many calculators can the teacher fill with batteries? *
Answer:
The teacher can fill 5 calculators
Step-by-step explanation:
Answer:
5
Step-by-step explanation:
3
6
9
13
15
past 5 there would be a remainder.
Jennifer invests $7,000 in an account for 12 years that pays compound interest
annually. She uses the expression P(1 + r) to find the total value of the account.
What will be the total value of the account after 12 years if the interest rate is 1.6%?
Answer:
The rule is P(1+r%) power of time (T) so you're gonna apply the number to the rule
Step-by-step explanation:
P=7000
r=1.6%
T=12
7000 x (1+r%) power of T
(1+1.6%) power of 12 = 1.20983040
so when we calculate 7000 x (1+1.6%) power of 12
the answer will be = 8468.812846
What is the written form of the decimal 0.68?
Ashton is paid $90 for 5 hours of work. He earned $18 in 1 hour. He earned $144 in 8 hours. At this rate, how much would Ashton be paid in 3 hours of work?
Answer:$54 for 3 hours of work
Step-by-step explanation:
Multiply 18 times 3
and you get 54
Math! Please give me the answer and EXPLAIN how you got it. (I need both)
Answer:
it's A. sis :)))) time 7 to (2x + 8)
PLEASE HELP FAST I ONLY HAVE ONE HOUR!!!!!
The correct option regarding the standard deviation of the residuals is given by:
The point will increase the standard deviation of the residuals because it has a large negative residual.
What are the mean and the standard deviation of a data-set?The mean of a data-set is given by the sum of all values in the data-set, divided by the number of values.The standard deviation of a data-set is given by the square root of the sum of the differences squared between each observation and the mean, divided by the number of values.Considering a scatter plot and a line of best fit, a residual is the difference between the observed value(scatter plot) and the predicted value(line of best fit).
Hence, the circled value has a large negative residual. For the standard deviation, the differences are squared, hence the circled value increasing the standard deviation, and the correct option is:
The point will increase the standard deviation of the residuals because it has a large negative residual.
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Quadrilateral ABCD has vertices A ( 5,0) , B ( 3,6) , C (-3,6) , and D( -4, -5) . If ABCD is reflected in ×-axis, and then rotated by 90 degrees clockwise about origin to get a new quadrilateral A'B'C'D' , what is the distance between B' to C'. Enter the distance here
The final coordinates of B' and C' after the rotation are B''(6, -3) and C''(6, 3) while the distance between both points is; 6
Distance between B" and C" is;
B"C" = √[(6 - 6)² +(3 + 3)²]
B"C" = 6
What is the distance between coordinates?We are given coordinates of vertices of Quadrilateral ABCD as;
A ( 5,0) , B ( 3,6) , C (-3,6) , and D( -4, -5)
Reflection about the x-axis gives; B (3, 6) , C(-3, 6)
Now, the transformation rule for rotating 90 degrees clockwise is;
(x, y) becomes (y, -x)
Thus, coordinates B' and C' are now;
B''(6, -3) and C''(6, 3)
Distance between B" and C" is;
B"C" = √[(6 - 6)² +(3 + 3)²]
B"C" = 6
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16 - 4x = 6x – 8x + 2
What will the y-coordinate/value be for A' (A
prime) if Triangle ABC is reflected about the y-
axis?
what are the coordinates if you tell me that I can help you
Please help. I will give you brainlest
Answer:
B or C one of those
Step-by-step explanation:
Plz, help! Due soon!
You have just been hired as New York’s premier Real Estate Agent! In your company, you will make a 7% commission. The real estate market in New York is booming! As the realtor calculates your potential commission if you sell the property for list price.
If the listing price for Candy Cane Creek is $864, 550, how much commission would you receive?
Answer
$60,515:
Step-by-step explanation:
Answer:
$60,515:
..............
Solve each system by substitution
4y - 6 = 2x
y- 3x=9
Answer:
your answer is -3,0
Step-by-step explanation:
if you wanna check you can plug it into the bottom equation y -3(-3) =9
so 9=9 which is a true statement
help please! nobody has been answering my questions :( !!!!!!
A square has a perimeter of 20x + 36. Write a simplified expression for the side length of the square.
Answer: 5x+9
Step-by-step explanation:
P=perimeter. s=side length.
P=4s
20x + 36=4s
s=5x+9
Please please help me!!
Answer:
5/4x+1
Step-by-step explanation:
A gallon of paint can cover 50 square feet. Find how many gallon containers of paint should be bought to paint 3 coats
on each wall of a rectangular room with dimensions 10 feet by 18 feet and walls that are 8-feet tall.
Answer:
27 gallons
Step-by-step explanation:
A rectangular room is a rectangular prism. The floor and ceiling are the bases. The walls are the lateral faces. The lateral are of a rectangular prism is the product of the perimeter of the base and the height of the prism.
lateral area = Ph
lateral area = 2(10 ft + 18 ft) × 8 ft
lateral area = 448 ft²
area of walls = 448 ft²
area of three coats = 3 × 448 ft² = 1,344 ft²
area covered by 1 gallon of paint = 50 ft²
number of gallons of paint needed = 1344 ft² / 50 ft² = 26.88
Answer: 27 gallons
In New Mexico, the World's Tallest Taco, which stands at a height of 356.78 feet, slowly sinks to the ground at a rate of 0.66 feet per year. After 15 years, how tall will the Taco be?
plz help me with this???
Answer:
[tex]\frac{9}{28}[/tex]
Step-by-step explanation:
Shaded area = 1 - [tex]\frac{1}{4}[/tex] - [tex]\frac{3}{7}[/tex] (Make them have the same denominator, 28)
= [tex]\frac{28}{28}[/tex] - [tex]\frac{7}{28}[/tex] - [tex]\frac{12}{28}[/tex] (Simplify)
= [tex]\frac{28}{28}[/tex] - [tex]\frac{19}{28}[/tex] (Evaluate)
= [tex]\frac{9}{28}[/tex]
Answer:
9/28 is the answer
Step-by-step explanation:
it maybe really late.
The degree measure of two consecutive angles of a rhombus are represented by 5x+10 and 3x+50 find x
Answer:
23
Step-by-step explanation:
Write the missing number that makes each equation true. Show your work. __ - 4 = 16 - 5
it is 15 cuz 15-4=11 and ,16-5=11
The missing number in the expression equivalent to 16 - 5 is 15 - 4.
What is a numerical expression?A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.
Given, two expressions ___ - 4 = 16 - 5.
Now, RHS of the expression can be written as,
16 - 1 - 4.
= 15 - 4.
Therefore, LHS of the equation is 15 - 4.
So, 15 - 4 = 16 - 5.
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What type of number is √14? (square root of 14) Multiple answers can be selected.
A. Rational
B. Irrational
C.Natural
D. Whole
F. Integer
What type of number is -4? (Multiple answers can be selected)
A. Rational
B. Irrational
C.Natural
D. Whole
F. Integer
What type of number is 3/8 (Multiple answers can be selected)
A. Rational
B. Irrational
C.Natural
D. Whole
F. Integer
What type of number is 3.0? (Multiple answers can be selected)
A. Rational
B. Irrational
C.Natural
D. Whole
F. Integer
Answer:
1. B irrational number
2. A and F
3.A and C
4.A ,C , F and D
Step-by-step explanation:
1. Is the square root of 14 a rational number? No, the square root of 14 is not a rational number. It is an irrational number as it cannot be expressed in the form of p/q.
2.−4 is an integer. We can say it is also a rational number, but it is neither a natural number, whole number, irrational number nor an imaginary number.
3. 3/8 is a rational number and a whole number because its more than 0
4. When a rational number is split, the result is a decimal number, which can be either a terminating or a recurring decimal. All rational numbers can be expressed as a fraction whose denominator is non-zero. Here, the given number, 3 can be expressed in fraction form as 3⁄1. Hence, it is a rational number.
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plz help thanks . uh idk what to write but it’s making me write
Answer:
A, 4, -1
It's reflected over the y-axis, so it goes to the right side.
Answer:
a (4,-1)
Step-by-step explanation:
A is the answer.
PLEASE HELP!! 20 POINTS!!
Answer:
[tex]12\sqrt{3}[/tex]
Step-by-step explanation:
I do not know if this is completely correct
this i dont understand i dont understand what an interception is -
Answer: its 2
Step-by-step explanation: An intercept is where the line crosses over the x or y axes.
if someone answers this correctly I'll give em 100 points
Is -7 rational Helppppppp
Answer:
Rational numbers are fractions composed of integers. An integer is a number with no fractional part. So 7/8 is a ratio of whole numbers, which makes it rational. Negative or positive does not matter.
Step-by-step explanation:
In their last game, the Arizona Cardinals scored 9 points in the first half. In the second half, they scored three less than two times the points in the first half. What is the ratio of the points scored in the second half to the total number of points scored?
Please HELP!
Answer:
[tex]\huge\boxed{\sf 15:24 }[/tex]
Step-by-step explanation:
In the first Half:
9 points
In the second half:
2(9)-3 = 18 - 3 = 15 points
Total Points:
9 + 15 = 24 points
Ratio of points scored in the second half to the total points:
15 : 24
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807NEED! ANSWER HELP! PLEASE;
The midpoint between two points is (-16 12). of one endpoint is (-24 8) then the other is (-8,
A) 10
B) 12
C) 14
D) 16
Answer:
16
Step-by-step explanation:
The correct answer is option D which is the coordinate will be 16.
What is the midpoint?The mid point of the line is defined as the center point of any line it means that the distance of this point is same from the one end and to the other end.
Given that:-
The midpoint between two points is (-16 12). of one endpoint is (-24 8) then the other is (-8,The formula for calculating the midpoint of the line for the y coordinate will be:-
Ym= ( y1 + y2 ) / 2
12 = ( 8 + y2) / 2
24 = 8 + y2
y2 = 24 - 8
y2 = 16
Therefore the correct answer is option D which is the coordinate will be 16.
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