Write 81+72 as a proudect using gcf as one of the factors
Step-by-step explanation:
Since 81 = 9² and 72 = 9 * 8,
81 + 72 = 9(9 + 8) = 9 * 17.
An expression is defined as a set of numbers, variables, and mathematical operations. The expression 81+72 as a product using GCF as one of the factors can be written as 9(9+8).
What is an Expression?In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
The expression 81+72 as a product using GCF as one of the factors can be written as,
81+72
= 9(9+8)
Hence, the expression 81+72 as a product using GCF as one of the factors can be written as 9(9+8).
Learn more about Expression:
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What does g=? Please helppp
Find the surface area of this triangular prism. Be sure to include the correct unit in your answer.
Step-by-step explanation:
(2 × 1/2 × 20 × 15) + (16 ×15) + (20 × 16) + (25×16)
300 + 240 + 320 + 400 = 1260 ft²
Mario's Pizza delivers pizzas within a 10-mile radius of the restaurant. Their delivery times are Normally distributed with a mean delivery time of 30 minutes and a standard deviation of 10 minutes. Find the probability that a randomly selected customer will have to wait a) less than 25 minutes b) more than 38 minutes c) between 26 and 32 minutes
Answer:
a) 0.30854
b) 0.21186
c) 0.23468
Step-by-step explanation:
Mario's Pizza delivers pizzas within a 10-mile radius of the restaurant. Their delivery times are Normally distributed with a mean delivery time of 30 minutes and a standard deviation of 10 minutes.
We solve using z score formula.
z = (x-μ)/σ, where
x is the raw score
μ is the population mean
σ is the population standard deviation.
Find the probability that a randomly selected customer will have to wait
a) less than 25 minutes
for x < 25 minutes
z = 25 - 30/10
z = -0.5
Probability value from Z-Table:
P(x<25) = 0.30854
b) more than 38 minutes
For x > 38 minutes
z = 38 - 30/10
z = 0.8
Probability value from Z-Table:
P(x<38) = 0.78814
P(x>38) = 1 - P(x<38) = 0.21186
c) between 26 and 32 minutes
For x = 26 minutes
z = 26 - 30/10
z = -0.4
Probability value from Z-Table:
P(x = 26) = 0.34458
For x = 32 minutes
z = 32 - 30/10
z = 0.2
Probability value from Z-Table:
P(x = 32) = 0.57926
The probability that a randomly selected customer will have to wait between 26 and 32 minutes is calculated as:
P(x = 32) - P(x = 26)
= 0.57926 - 0.34458
= 0.23468
Lena and 3 of her friends bought just enough food to go on a 12- day camping trip. Pete and Jane surprised them by showing up at the start of the trip and asking to join, but they brought no food. By what percent would the time for the trip shorten for the trip if everyone ate their normal portions?
The number of people increased by 2.
This means as a ratio it is now 6/4 as many as originally planned.
6/4 can be reduced to 3/2.
The time and the number of people are inversely proportional, so the food would last 2/3 ( inverse is flipping the original ratio over) the original length of time.
This means the length of time the food lasts is reduced by 1/3, which is 33.3%
What’s the slope of the line for each of these! Hurry I at testing!
Is anyone good with triangle inequalities? I provided a picture for the problem.
Answer:
1 < x < 19
Step-by-step explanation:
Triangle Inequality Theorem
Let y and z be two of the side lengths of a triangle. The length of the third side x cannot be any number. It must satisfy all the following restrictions:
x + y > z
x + z > y
y + z > x
Combining the above inequalities, and provided y>z, the third size must satisfy:
y - z < x < y + z
We are given the measures y=10, z=9. The third side must satisfy:
10 - 9 < x < 10 + 9
1 < x < 19
at what point do the graphs of 9x - 2y = 30 and x + 2y = 10 intersect
Answer:
(4,3)
Step-by-step explanation:
What is the value of x in the equation 2.5 minus 0.25 x = negative 3
Answer:
-22
Step-by-step explanation:
What is the parent function for f(x) = (x+7)^2?
Answer:
I think The parent function is the simplest form of the type of function given g(x)=x^2
Step-by-step explanation:
Can someone please help me on this question
I will give brainliest
Answer:
A) 3 in
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Geometry
Surface Area of a Sphere: SA = 4πr²Diameter: d = 2rStep-by-step explanation:
Step 1: Define
SA = 23 in²
Step 2: Find r
Substitute [SAS]: 23 in² = 4πr²Isolate r term: 23 in²/(4π) = r²Isolate r: √[23 in²/(4π)] = rRewrite: r = √[23 in²/(4π)]Evaluate: r = 1.35288 inStep 3: Find d
Substitute [D]: d = 2(1.35288 in)Multiply: d = 2.70576 inRound: d ≈ 3 inIf a car travels 400 km in 2 hours, how fast is it going? pleasee i need the answer asap
Answer:
124m/s
Step-by-step explanation:
The circumstance of a circle is 16 ft
The radius is_____ ft
Answer:
8ft
Step-by-step explanation:
Circumference of a circle equation; πd or2πr
16π = 2πr you can then divide both sides by π
16 = 2r then you can divide both sides by 2
8 = r
What is the equation of the line written in general form?
-3 x - y + 2 = 0
3 x + y - 2 = 0
3 x - y - 2 = 0
Answer:
I think its the second one :)
Answer:
B. 3 x + y - 2 = 0
Step-by-step explanation:
Hope this helped have an amazing day!
Angad is 10 years older than Alex. Mark is 11 years younger than Alex. If the total of their ages is 68, how old is the youngest of them?
Answer:
47
Step-by-step explanation:
Which expression is equivalent to the following?
(5×10−3)+(6×10−3)2.2×104
A.5 × 10-7
B.5 × 10-1
C.5 × 10-10
D.5 × 107
Answer:
1.32 * 10^2
Step-by-step explanation:
Given the expression;
(5×10−3)+(6×10−3)2.2×10^4
First we need to do the multiplication first;
= (5×10−3)+(13.2×10−3+4)
= (5×10−3)+(13.2×10^1)
= 0.005 + 132
= 132.005
= 1.32 * 10^2
Hence the equivalent expression is 1.32.0 * 10^2
how to do this question plz answer me
Answer:
[tex]\begin{array}{| c | c | c |c| c| c | c| c |}
\cline{1-8} x & - 3 & - 2 & - 1 & 0& 1 & 2 & 3\\
\cline{1-8} y & 6 &\textbf{0} &\textbf{ - 4} & - 6 & \textbf{ - 6}& \textbf{ - 4}& \textbf{0} \\
\cline{1-8}
\end{array}[/tex]
Step-by-step explanation:
The 2nd column of the table means that when x= -3, y= 6.
Since this table of values is for the equation of y= x² -x -6,
substitute the given values of x into the equation to find the respective values of y.
3rd column:
y= x² -x -6
When x= -2,
y= (-2)² -(-2) -6
y= 4 +2 -6
y= 0
4th column:
y= x² -x -6
When x= -1,
y= (-1)² -(-1) -6
y= 1 +1 -6
y= -4
6th column:
y= x² -x -6
When x= 1,
y= 1² -1 -6
y= 1 -1 -6
y= -6
7th column:
y= x² -x -6
y= 2² -2 -6
y= 4 -2 -6
y= -4
8th column:
y= x² -x -6
y= 3² -3 -6
y= 9 -3 -6
y= 0
0.018 ÷ 0.02 pls help
Mr. Tieu spent $23 on apples, bananas, and oranges. He bought 10 more apples than oranges, and 6 fewer bananas than apples. How many of each kind of fruit did he purchase if one apple costs 70 cents, one apples costs 50 cents, and an orange costs 80 cents each?
Answer:
apples: 17
oranges: 11
bananas: 7
Step-by-step explanation:
hope this helps!
is y=19x - 5 proportional
Answer:
yes
Step-by-step explanation:
Answer:
non proportional
Step-by-step explanation:
please i need help on this
Answer:
ur black lol
Step-by-step explanation:
being black is racist
Amanda read 30 pages of her 175 page book in 2 hours. At this rate how long will it take her to read the entire book?
Answer:
5.8 hours
Step-by-step explanation:
175 / 30
how dose 3^x=10 and x^3=10 differ
Why do you need to use a different method in the two previous problems?
can someone please help my ASAP
Domain: (-∞, ∞)
Range: (-∞,1]
Answer:
Domain = All Real Numbers
Range = y≤1
Step-by-step explanation:
Since parabolas are continuous, the domain is all real numbers. The range, or y value, is all real numbers less than or equal to 1 (y≤1), since 1 is the vertex.
Hope this helps :)
Give three examples of ratios that are equivalent to 2:3
Answer:
12:18
8:12
4:6
are the correct answers
Answer:
4:6, 8:12, 6:9
Step-by-step explanation:
A baker has 3/4 pound of sugar left in his Pantry needs one eighth of a pound for each batch of cookies he makes what is the greatest number of batches of cookies the baker can make with 3/4 of powdered sugar
Simplify the following expression: (5 points) 5x − 6y + 5z − x − 12y + 2z 6x − 18y + 7z 4x − 18y + 7z 4x − 6y + 7z 6x − 6y + 7z
Answer:
4x-18y+7z
Step-by-step explanation:
brainliest? ;w;
im not sure how to understand this
Can I please get some help on question 8
I will give you brainliest
Answer:
A) 2.8 m
Step-by-step explanation:
The formula for the volume of a right rectangular prism is:
Volume = Length × breadth × height
We can just put in the values that we know to find the height.
110.1 = 7.8 × 5.1 × height
height = 110.1 ÷ 7.8 ÷ 5.1
height ≈ 2.8 (rounded to nearest tenth)
Thus, the answer is Option A.
Answer:
A) 2.8 m
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Geometry
Volume of a Rectangular Prism: V = lwhStep-by-step explanation:
Step 1: Define
l = 7.8 m
w = 5.1 m
V = 110.1 m³
Step 2: Solve for h
Substitute [VRP]: 110.1 m³ = (7.8 m)(5.1 m)hMultiply: 110.1 m³ = (39.78 m²)hIsolate h: 2.76772 m = hRewrite: h = 2.76772 mRound: h ≈ 2.8 mEvaluate the expression when b= 113