Find the sum between (-x + 7y + 2z) and (4x – 9y).
Answers
Answer:
3x-2y+2z
Step-by-step explanation:
Related Questions
57:50
What is the solution to the equation?
-9
a+53 -
3+53-9
a-
at
9
a
a+
Answers
Answer:
a-
Step-by-step explanation:
hi
I don't know how to do this please help me!
Find the measure of an angle between 0 degrees and 360 degrees coterminal with an angle of -244 degrees in a standard position.
Answers
Answer:
to find the equivalent positive angle of a negative angle, just add 360 to it until it becomes positive and is between 0 and 360 degrees. -244 + 360 = 116.
Step-by-step explanation:
Help! this is very hard for me and i need help . Thank you!
Answers
Answer:
B
Step-by-step explanation:
the volume formula is πr^2(h), so plug in the 4 and 9 you would get 452.16
How do I write a slope intercept form equation from standard form?
Answers
Select all the right triangles, given the lengths of the sides.
Answers
Answer:
A and E are right triangles
Triangles A and triangle E are the right-angle triangle, but triangles B, C, and D are not right-angle triangles.
What is the right triangle?A right-angle triangle is a triangle that has a side opposite to the right angle the largest side and is referred to as the hypotenuse. The angle of a right angle is always 90 degrees.
The slanted side of that triangle is called Hypotenuse and it is the longest side in that triangle.
Applying in Pythagoras theorem in the triangle A:
(√5)² = (√2)²+ (√3)²
5 = 5
Triangle A is the right-angle triangle.
For triangle B:
(√5)² = (√4)²+ (√3)²
5 ≠ 7
Triangle B is not the right-angle triangle
For triangle C:
16 + 25 ≠ 36
triangle C is not a right-angle triangle
For triangle D:
25 + 25 ≠ 49
triangle D is not a right-angle triangle
For triangle E:
100 = 36 + 64
It is a right-angle triangle.
Thus, triangles A and triangle E is the right angle triangle.
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In which number does the 7 represent 10 times the value it represents in 167,300
Answers
Answer:
I'm not totally sure, but I think the answer is thousands.
Step-by-step explanation:
HELLLLLPPPPPP MEEEEEE PLLLLEAAAASSEEEEW!!!!
Answers
I really don’t get it
Answers
you just add 8 + 8 + 8 it equals 24. rounded it will be 20
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im pretty sure thats how you do it if not sorry
This is a Single Choice Question; skip ahead to question content
A
B
C
D
E
Confirm
A disinfectant spray bottle says it eliminates 90% of bacteria with each application. You apply the disinfectant once to a countertop in the shipping department and then apply the disinfectant again to the same countertop. If the bottle is correct, what percentage of the bacteria originally on the tabletop have been eliminated?
81%
90.09%
90.9%
99%
180%
Answers
The owner of a small store buys coats for 50.00$ each. Answer parts a and b.sells the coats for $ each. he sells the coats for 70.00 each What percent of the purchase price is the sale price?
Answers
Answer:
40% profit
140% markup
Step-by-step explanation:
I'm not sure if it's asking what is the markup, or how much you are making.
But profit
$20 out of 50 = 0.40
Markup
70/50 = 1.4 -> 140% markup
A mattress store is having a sale all mattresses are 30% of. Nate wants to know the sale price of a mattress that is regularly $1,000
Answers
Answer: $700
Step-by-step explanation:
The store is selling at 30% off.
If a mattress is $1,000, first find out what 30% of $1,000 is:
= 1,000 * 30%
= $300
The store is selling 30% off, this means that they are reducing the price by 30%:
= 1,000 - 300
= $700
help help help i’ll kiss u
Answers
Answer:
I, J
Step-by-step explanation:
En un partido de baloncesto, los máximos anotadores han sido Juan, Jorge y Mario. Juan ha logrado 19 puntos. Jorge 5 puntos más que Juan y Mario 7 puntos menos que Jorge. ¿Cuántos puntos han obtenido entre los tres? *
Answers
Answer:
31
Step-by-step explanation:
Answer:
31
Step-by-step explanation:
plz help with this thanks
Answers
Answer:
which one
Step-by-step explanation:
the upper answer would be 38 and lower would be
Answer:
4f = 38
Step-by-step explanation:
f(x) = 9x + 2
=
f(4) = 9(4) + 2
=
4f = 36 + 2
=
4f = 38
The scale factor of two similar hexagons is 5:12. The smaller hexagon has an area of 24 square units. What is the area of the larger hexagon?
Answers
Answer: [tex]138.24\ \text{square units}[/tex]
Step-by-step explanation:
Given
The scale factor of two similar hexagons is 5:12.
The smaller hexagon has an area of 24 square units
we know, the ratio of two similar figures is equal to the square of the scale factor.
Suppose the area of the larger hexagon is A
[tex]\therefore \dfrac{24}{A}=\left[\dfrac{5}{12}\right]^2\\\\\Rightarrow A=\left[\dfrac{12}{5}\right]^2\times 24\\\\\Rightarrow A=138.24\ \text{square units}[/tex]
A square has a side length of 12 cm. Which of the following is closest to the length of its diagonal? A) 9 cm B) 12 cm C) 12v 2 cm D) 24V3 cm 12 VT Fora
Answers
12^2 + 12^2 = c^2
144 + 144 = 288
V288 = 12V2
You have a frame that holds three pictures. You pulled out your favorite five photos. How many sets of three are there?
Make a list of all the possible combinations using the numbers 1 to 5 to represent the photos.
Answers
Answer:
C(5,3)=10
Pictures 1,2,3,4,5
So the Possible sets are:
(1,2,3) (1,2,4)
(1,2,5) (1,3,4)
(1,3,5) (1,4,5)
(2,3,4) (2,3,5)
(2,4,5) (3,4,5)
The requried 10 possible sets of three photos can be selected from the group of five.
What are permutation and combination?In arithmetic, combination and permutation are two different ways of grouping elements of a set into subsets. In combination, the components of the subset can be recorded in any order. In a permutation, the components of the subset are listed in a distinctive order.
Here,
The number of sets of three photos that can be selected from a group of five photos is given by the combination formula:
C(5, 3) = 5! / (3! * 2!) = (5 * 4 * 3) / (3 * 2 * 1) = 10
Therefore, there are 10 possible sets of three photos that can be selected from the group of five.
The 10 possible combinations are:
{1, 2, 3}
{1, 2, 4}
{1, 2, 5}
{1, 3, 4}
{1, 3, 5}
{1, 4, 5}
{2, 3, 4}
{2, 3, 5}
{2, 4, 5}
{3, 4, 5}
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What is the volume of this rectangular prism?
Answers
Answer:
20
Step-by-step explanation:
volume: lwh
.666*5*6=20
Answer:
20 cm³
Step-by-step explanation:
[tex]\frac{2}{3}[/tex] · 6 · 5
[tex]\frac{2}{3}[/tex] · 30
20 cm³
Alexia surveyed 50 classmates about their favorite ice cream flavors. Each
classmate chose one flavor. The results are shown in the circle graph.
Favorite Ice Cream Flavors
Coffee
14%
Chocolate
42%
Vanilla
Strawberry
18%
How many more of Alexia's classmates chose chocolate than chose vanilla?
Answers
Answer:
8
Step-by-step explanation:
A company finds that if it charges x dollars for a cell phone, it can expect to sell 1,000−2x phones. The company uses the function r defined by r(x)=x⋅(1,000−2x) to model the expected revenue, in dollars, from selling cell phones at x dollars each. At what price should the company sell their phones to get the maximum revenue?
Answers
Answer:
$500 will give the company the maximum revenue
Step-by-step explanation:
Given
[tex]r(x) = x (1000 - 2x)[/tex]
Required
Price to generate maximum revenue
We have:
[tex]r(x) = x (1000 - 2x)[/tex]
Open bracket
[tex]r(x) = 1000x - 2x^2[/tex]
Rewrite as:
[tex]r(x) = - 2x^2 + 1000x[/tex]
The maximum value of x is calculated using:
[tex]x = -\frac{b}{2a}[/tex]
Where:
[tex]f(x) = ax^2 + bx + c[/tex]
So:
[tex]a \to -2[/tex]
[tex]b = 1000[/tex]
[tex]c = 0[/tex]
[tex]x = -\frac{b}{2a}[/tex]
[tex]x = -\frac{1000}{-2}[/tex]
[tex]x = \frac{1000}{2}[/tex]
[tex]x = 500[/tex]
Paulo and his mother are building a rectangular compost bin for their garden. They want the bin to have a volume of 64 cubic feet. The width of the bin is 3.2 feet and the length is 5 feet. What should the height of the bin be?
Answers
Answer:
Step-by-step explanation:
3.2x5= 16
64 ÷ 16 = 4
Julie was given a new map of New Hampshire to calculate some distances. The scale is 1 inch = 50 miles. How far is Conway from Littleton?
Answers
Answer:
Conway is 312.50 miles from Littleton
Step-by-step explanation:
Given
[tex]Scale: 1\ in = 50\ mi[/tex]
See attachment
Required
Distance between Conway and Littleton
The scale distance between Conway and Littleton is 6.25 inches.
So, the actual distance is calculated as:
[tex]1\ in = 50\ mi[/tex]
Multiply both sides by 6.25
[tex]6.25 * 1\ in = 50\ mi * 6.25[/tex]
[tex]6.25\ in = 312.50\ mi[/tex]
Hence, Conway is 312.50 miles from Littleton
The diagram shows a triangle.
What is the value of w?
Answers
Answer:
value of W=180-(115+33)
= 180-148
=32
c.) The tires of an automobile have a diameter of 22 in. If the wheels revolve 18 times, how many feet does the automobile move? Evaluate for �� and round to the nearest hundredth. (Hint: use Circumference)
Answers
Answer:
396
Step-by-step explanation:
22 x 18 = 396
Final answer 396.
600 students sat a Math exam. If 86% of students passed the exam, the percentage of people who FAILED is
Answers
Answer:
the percentage of student who failed r 14%
and their number is 84.
stay safe healthy and happy.So 100%-86%=14% (84 students)
given p(a) =0.7, P(b) = .86 and P (A and B) = 0.652 find the value of p (A|B)
Answers
Answer:
.758 or 163/215
Step-by-step explanation:
Conditional probablity formula:
(A|B)= (A∩B)/B
we have
.652/.86
this equals .758 or 163/215
If the radius of the circle below is 12 feet, find the area of the shaded region.
Answers
Answer:
The area of the shaded region is 195.84sqft.
Step-by-step explanation:
Area of shaded region = area of trapezium- area of circleArea of shaded region= 1/2(sum of parallel side)*height - π[tex](radius)^{2}[/tex]
Area of shaded region=1/2(20+34)*24 - π[tex](12)^{2}[/tex]
Area of shaded region=648-452.16
Area of shaded region=195.84 sqft.
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which point is 7/8? PLZ ANSWER ASAP
Answers
Answer:
Point F is 7/8
Step-by-step explanation:
range of points least to most
POINT C = 1/8
POINT D = 3/8
POINT E = 3/4
POINT F = 7/8
PLS SOMEONE NEEDS TO HELP MEE
Answers
Ans: 15,360
Use the rule to find the output when the input is –6.
Output = Input ÷ 2
a. –8
b. –3
c. 3
d. –4
Answers
Answer: C
Step-by-step explanation:
yes