Step-by-step explanation:
2(x3+5x2−2x2y−10xy)
=(2)(x3+5x2+−2x2y+−10xy)
=(2)(x3)+(2)(5x2)+(2)(−2x2y)+(2)(−10xy)
=2x3+10x2−4x2y−20xy
=2x3−4x2y+10x2−20xy
Evaluate 3-(5-10)-7+1-6
Answer:
[tex] - 4[/tex]
Step-by-step explanation:
1) Simplify 5 - 10 to -5.
[tex]3 - ( - 5) - 7 + 1 - 6[/tex]
2) Remove parentheses.
[tex]3 + 5 - 7 + 1 - 6[/tex]
3) Simplify 3 + 5 to 8.
[tex]8 - 7 + 1 - 6[/tex]
4) Simplify 8 - 7 to 1.
[tex]1 + 1 - 6[/tex]
5) Simplify 1 + 2 to 2.
[tex]2 - 6[/tex]
6) Simplify.
[tex] - 4[/tex]
Therefor, the answer is -4.
Can someone give me the answer please?
Answer:
16
Step-by-step explanation:
Hey There!
So the x values are the same so all we have to do is subtract the y values
to be more specific y1-y2
so the distance is equal to 7--9
the negative signs cancel out so now its 7+9
7+9=16
so the distance between the two points is 16
hope this helps :)
Answer:
D. 16 units
Step-by-step explanation:
You could draw a coordinate plane or think of it this way:
They will all be in line with -4 and they will be at -9 and 7. You should add them together to find the distance. 9 + 7 = 16
D. 16 units
The image shows a coordinate plane:
The graph of triangle ABC is shown below:
What is the area, in square units, of triangle ABC?
Answer:
36 square units
Step-by-step explanation:
Height = 9
Base = 8
Area of a triangle = A = 1/2bh
Plug in
1/2 (8) (9) = 4 x 9 = 36
The length of a rectangle is increasing at a rate of 4 meters per day and the width is increasing at a rate of 1 meter per day. When the length is 10 meters and the width is 23 meters, then how fast is the AREA changing
Answer:
[tex]\displaystyle \frac{dA}{dt} = 102 \ m^2/day[/tex]
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightGeometry
Area of a Rectangle: A = lw
l is lengthw is widthCalculus
Derivatives
Derivative Notation
Implicit Differentiation
Differentiation with respect to time
Derivative Rule [Product Rule]: [tex]\displaystyle \frac{d}{dx} [f(x)g(x)]=f'(x)g(x) + g'(x)f(x)[/tex]
Step-by-step explanation:
Step 1: Define
[tex]\displaystyle l = 10 \ meters[/tex]
[tex]\displaystyle \frac{dl}{dt} = 4 \ m/day[/tex]
[tex]\displaystyle w = 23 \ meters[/tex]
[tex]\displaystyle \frac{dw}{dt} = 1 \ m/day[/tex]
Step 2: Differentiate
[Area of Rectangle] Product Rule: [tex]\displaystyle \frac{dA}{dt} = l\frac{dw}{dt} + w\frac{dl}{dt}[/tex]Step 3: Solve
[Rate] Substitute in variables [Derivative]: [tex]\displaystyle \frac{dA}{dt} = (10 \ m)(1 \ m/day) + (23 \ m)(4 \ m/day)[/tex][Rate] Multiply: [tex]\displaystyle \frac{dA}{dt} = 10 \ m^2/day + 92 \ m^2/day[/tex][Rate] Add: [tex]\displaystyle \frac{dA}{dt} = 102 \ m^2/day[/tex]Topic: AP Calculus AB/BC (Calculus I/II)
Unit: Implicit Differentiation
Book: College Calculus 10e
ags of sugar come in 3 sizes.
Small bag: A 250 g bag costs 64p.
Medium bag: A 575 g bag costs £1.25.
Large bag: A 1.25 kg bag costs £2.54.
Find the cost per gram for each bag of sugar.
Round your answers to 3dp.
Write which size of bag is best value for money in the comment box.
Answer:1 gram of the small bag costs 0.256p ,1 gram of the medium bag costs 0.217p and 1 gram of the big bag costs 2. 032p
Step-by-step explanation:
Kate’s father is a baker at the Morning Muffin Bakery. This morning the oven wasn’t working correctly and 2 dozen muffins burned. Kate’s father gave ¼ of what was left to Kate to take to school. He wrapped up ½ of the remaining muffins and sold them to the grocery store down the street. He then wrapped ⅓ of what was remaining and gave them to the coffee shop to sell. That left Kate’s father with a dozen muffins to sell at the bakery. How many muffins did Kate’s dad bake?
Answer:
64
Step-by-step explanation:
Step 1: 12 divided by 3 = 4. 12+4 = 16.
I need to know what ⅓ of 12 is so I can continue the problem without messing up.
Step 2: 16*2 = 32.
Half of however many are left is 16.
Step 3: 32 divided by 4 is 8. 32+8 is 40. Two dozen is 24. 40 + 24 = 64.
Now we know the answer.
Boom.
PLEASE HELP: Find the value of S20 for the series of 5+8+11+14+....
Answer:
17 alyezhh
Step-by-step explanation:
its adding by 3's loljjjjhggg
is Simon a nice person?
Answer:
if it's Simon from the america's most talented probably yes
Answer:
Simon Cowell? If so..no
Step-by-step explanation:
Name the two congruent triangles
Answer:
∆ABE ≅ ∆DCE by SAS Congruence Theorem.
Step-by-step explanation:
The diagram given indicates the following:
<E ≅ <E (vertical angles)
AE ≅ DE
BE ≅ CE
Thus, an included angle, <E, and two side lengths, AE and BE, in ∆ABE are congruent to an included angle, <E, and two corresponding side lengths, DE and CE, in ∆DCE. By the SAS Congruence Theorem, both angles are congruent to each other.
Therefore:
∆ABE ≅ ∆DCE by SAS Congruence Theorem.
Caroline needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer for 2.75 hours and charged her $114 for parts. The total was $320.25. Write and solve an equation which can be used to determine xx, the cost of the labor per hour.
Find the value of x in the triangle shown below 3 6
5
√18
√27
4
a^2 + b^2 = c^2
In this case we're looking for C
so
(3)^2 + b^2 = (6)^2
9 + b^2 = 36
b^2 = 36-9
√b^2 = √27
b = 3√3
Answer:
the answer is actually d= 27
Step-by-step explanation:
A rectangular prism has a length of 1 1/4 centimeters, a width of 4 centimeters, and a heigh of 3 1/4 centimeters What is the volume of the prism? Enter your answer in the box as a simplified mixed number or a decimal
Answer:
Step-by-step explanation:
V=lbh=1 1/4×4×3 1/4
=5/4×4×13/4
=65/4
=16 1/4 cm³
=16.25 cm³
Volume of a rectangular prism can be found by multiplying all three dimensions of the prism together: V = lwh
Need help please help me
A submarine is descending at a rate of 7 feet per second.
A 2-column table with 4 rows. Column 1 is labeled Seconds with entries 1, 2, 3, 4. Column 2 is labeled Feet with entries 7, 14, 21, 28.
Which statements are true? Select all that apply.
The number of seconds causes a change in the number of feet the sub descends.
The number of feet the sub descends causes a change in the number of seconds.
The equation is f = 7s.
The equation is s = 7f.
As the number of seconds increases, the number of feet the sub descends increases.
Answer:
A C E
Step-by-step explanation:
i got it right on edge :)
Answer:
A, C, E
Step-by-step explanation:
Just look at the person above no need to scroll down
2/5 x = 3 1/5
ASAP ill give brainliest
Answer:
15 1/2
Step-by-step explanation:
Answer:
x=8
Step-by-step explanation:
Let's solve your equation step-by-step.
2 /5 x=3 1 /5
Step 1: Simplify both sides of the equation.
2 /5 x= 16 /5
Step 2: Multiply both sides by 5/2.
( 5 /2 )*( 2 /5 x) =( 5 /2 )*( 16 /5 )
x=8
please give me the answer
1 -10
2 -8
3 -2
4 -1
Pleasee helppp it’s due todayyy
Answer:
88 is a solution to 1/8 x =11, since a solution means that x is equal to that number, so in this scenario, x=88. When substituted(88*0.125), the same answer, 11, is obtained.
Step-by-step explanation:
Mr. Pelt purchases gas for $3.24 per gallon. After leaving the gas station, he travels 208 miles on 8 gallons of gas. if the car uses gas at a constant rate, what is the number of miles traveled per gallon of gas
Answer:
208 ÷8= 26mpg
the price is irrelevant to the question asked
How do I solve 5x/6=-8 to get the answer
Answer:
Download photo math
Step-by-step explanation:
Ms. Buford surveyed 55 students on their preference of playing football or hockey. The results are shown below.
Answer:
1 Monique has three sons who play football, two sons who 2 The accompanying diagram shows the results of a survey asking which sports the members of the Key 6 In Ms. Wright's English class, 16 students are in band ... are shown in the Venn diagram below. 11 A school district offers hockey and basketball. The
Step-by-step explanation:
bernie helped design a magician costume for a school play
Answer:
and.........................................
Step-by-step explanation:
The ribbon cost per foot $0.6 per foot
Step-by-step explanation:
Total number of ribbon used = (5.75 + 11.75) = 17.50 feet
17.50 feet of ribbon cost = $10.50
1 foot of ribbon cost = x
Cross Multiply
17.50 × x = 1 foot × $10.50
x = 1 foot × 10.50/17.50
x = $0.6
The ribbon cost per foot $0.6 per foot
Calculate the area, in terms of x and in simplest form, of the rectangle shown below.
5x + 4
2x - 5
5x +4 the x is 2 the answer to this is 14
2x-5 the x is 4 the answer to this is 13
PLAZ HELPPP PWETRYYY PSLOD
Answer:
=
Step-by-step explanation:
whatever comes out of an absolute value is always positive so 8=8
Answer choices please help
240
200
240
280
Highest common factor of 15 30 and 45
Step-by-step explanation:
I believe it is 15...all the numbers can be divided by 15, since 15 is the smallest number it is also the highest common factor only because 30 and 45 can be divided by 15
.......hope it helps!
Answer:
15
Step-by-step explanation:
Find the prime factors for each number as:
45 =3 × 3 × 5
30 = 2 × 3 × 5
15 = 3 × 5
Now identify the common factors and determine the GCF:
Therefore:
HCF = 3 × 5 = 15
Help please!! I’ll give best answer brainliest!!
Answer:
D, The last one
Step-by-step explanation:
3. What are the solutions to 2(x-7) = 327
Answer:
if u mean what x is equal to then x=341/2
Step-by-step explanation:
A sample of 64 account balances from a credit company showed an average daily balance of $1,040. The standard deviation of the population is known to be $200. We are interested in determining if the mean of all account balances (i.e., population mean) is significantly different from $1,000. 1. State the null and alternative hypothesis. 2. Compute the test statistic. 3. Compute the p-value. 4. Based on the p-value and the significance level of 0.05% make a decision regarding the hypotheses. 5. Interpret your results in the context of the problem.
Answer:
See step by step exlanation
Step-by-step explanation:
Assuming normal distribution
N( μ₀ , σ )
In this case N ( 1000, 200)
From a random sample of 64 accounts we get:
n = 64
x = sample mean x = 1040
σ = standard deviation of the population σ = 200
1.-Test Hypothesis
Null Hypothesis H₀ x = μ₀ = 1000
Alternative Hypothesis Hₐ x ≠ μ₀
The alternative hypothesis implies a two tail-test. Given that n > 30 and σ is known we will use z-table
2.- z(s) = ( x - μ₀ ) / σ/√n
z(s) = ( 1040 - 1000 ) / 200/ √64
z(s) = 40*8/200
z(s) = 1,6
3.-P-val for z (score 1,6) p-value = 0,0548
4.- If significance level is 0,05 then α = 0,05 and α/2 = 0,025
p-value > α/2
Then the z(s) < z(c) 1,6 < 1,96 where z(c) is z score for α/2
We should accept H₀
5.-We can claim that at 95 % (of Confidence Interval) the population mean is not significantly different from 1000 $
What is the answer to x+2+8x=
Answer:
The answer is 2+9x
brainliest pls :D
x+8x=9x
2+9x
Answer:
9
Please solve quickly, will give brainliest
Answer:
Step-by-step explanation:
for 1 cube of 6 sides, it takes 5 grams
so 1 side is 5/6th grams
now how many sides of small cubes are shown is 42
42*5/6=35 grams
Answer:
180 grams
Step-by-step explanation:
5gramsx number of squares
5gramsx 36=180grams