Answer:
14
Step-by-step explanation:
280 divided by 20 is 14 when you divide by those 2 numbers you get how much they would cost. also 14x20 is 280
1)Factorise: ² + 9 + 20
Answer:
50$×40_=,29
Step-by-step explanation:
no explanation needed
A) not similar
B) similar: SSS similarity
C) similar: AA similarity
D) similar; SAS similarity
Answer:
A) not similar
Step-by-step explanation:
for the triangles to be similar the side lengths must be proportional.
For example:
99/35 should be equal to 121/44 but when we do cross multiplying we see they are not equal therefore the the triangles are not similar.
What is the value of x if the acute angles of a right triangle measure 8x* and 12x*?
*= degrees i cant use degree signs on here so im using (*)
Answer:
x = 4.5
Step-by-step explanation:
8x + 12x + 90 = 180 {Sum of all angles of a triangle is 180}
20x + 90= 180
20x = 180 - 90
20x = 90
x = 90/20
x = 4.5
The first few steps in solving the quadratic equation 5x2 + 27x = 14 − 13x by completing the square are shown.
5x2 + 27x = 14 − 13x
5x2 + 40x = 14
5(x2 + 8x) = 14
Which is the best step to do next to solve the equation by completing the square?
5(x2 + 8x + 16) = 30
5(x2 + 8x + 16) = 94
5(x2 + 8x + 4) = 18
5(x2 + 8x + 4) = 34
Answer:
[tex]5(x^2+8x+16)=94[/tex]
Step-by-step explanation:
[tex]5(x^2+8x+(\frac{8}{2})^2)=14+5(\frac{8}{2})^2\\ \\ 5(x^2+8x+16)=14+5(16)\\\\5(x^2+8x+16)=14+80\\\\5(x^2+8x+16)=94[/tex]
Neeta has two bags . One bag weighs 52 kg 250 gm while the other weighs 25 kg 60 gm. Calculate the sum and difference of the weights of the two bags. Give your answer in decimal form.
Answer:
Sum: 75kg or 310gm
Difference: 25kg or 190gm
Step-by-step explanation:
Sum:
25+50=75kg
250+60=310gm
Difference:
50-25=25kg
250-60=190gm
Determine the slope and y-intercept of the graph to the right
What is the sum of –18 and 12?
A. –6
B. –12
C. 12
D. 6
Answer:
A: -6
Step-by-step explanation:
Flip around the question
what is 12 - 18
If you count the numbers in between 12 and 18
You get 6
So now just make the answer negative
your answer is A.-6, i think its helpful
PLEASE ILL MARK BRAINLIEST!!!! Point P on the number line shows Lara's score after the first round of a quiz:
50 Point question boys! Let's do it for the brains!
Answer:
X=5
Step-by-step explanation:
HELP ME ON THIS QUESTION.
Answer:
8
Step-by-step explanation:
area of parallelogram = b*h
= 27*11
=297 ft^2
1 can = 40 ft^2
? = 297
cans = 8 cans
I need help on this ASAP the equation is shown there
Answer:
slope -3, y intercept 15
Step-by-step explanation:
Slope intercept for of equation is:
y=mx+b
Given equation is in form of
d=15-3v
From this we can conclude the slope is -3
y-intercept is 15
Math help i need to get 5 right......please
Answer:
f^-1(x) = x +6
Step-by-step explanation:
To find the inverse of the function
y = f(x)
solve the equation
x = f(y)
for y.
Here, you want ...
x = f(y)
x = (y -6)
x +6 = y . . . . . . add 6 to both sides
[tex]\boxed{f^{-1}(x)=x+6}\\[/tex]
The actual height of a book is 9 1/4 inches. Beverly estimates the height of the book and finds her percent error to be less than 4%.
What range of values represents Beverly's estimated height?
Enter your answers as decimals or mixed numbers in the simplest form by filling in the boxes.
Answer:
88.8 and 962
Step-by-step explanation:
I took the quiz
Mai's water bottle had 24 ounces in it. After she drank x ounces of water, there were 10 ounces left. Select all the equations that represent this situation.
Answer:I think it’s C and D and she drinks 14 ounces
Step-by-step explanation:
Hope this helped
At a local amusement part, 70% of the rides are made for kids who are 48 inches and taller. If there are 80 rides in total, how many are made for kids who are 48 inches and taller? *
Answer:
56 rides
Step-by-step explanation:
70/100 = 0.70
70 percent of 80 = 0.70 * 80
= 56
There are 56 rides made for kids who are 48 inches and taller.
Hope this helps, please mark branliest if possible it always helps :)
Time (minutes)Number of Pages 10 15 20 30 30 45 40 60 The time it takes Bill to read varies directly with the number of pages. Bill's data is shown in the table. If x = time, and y = the number of pages, which equation models Bill's direct variation? A)y = 15x B)y = 1.5x C) y = 15 + x D )y = 1.5 + x
Answer:
B. y = 1.5xStep-by-step explanation:
Direct variation:
y = kxOrdered pairs as per table:
(10, 15), (20, 30), (30, 45), (40, 60)Find the value of k:
15 = 10k k = 15/10k = 1.5The equation is:
y = 1.5xCorrect choice is B
Formula valid for all the polygons: P=_______
Formula valid for the pentagon regular: P=______
Measure: P= 11 x _ = _cm
Answer:
55 cm
Step-by-step explanation:
no of sides = 5
5*11=55cm
Find the qoutient 1 1/6 / 1/12
Answer:
14
Step-by-step explanation:
[tex]1\frac{1}{6}\div\frac{1}{12}\\ \\ \frac{7}{6}\div\frac{1}{12}\\ \\\frac{7}{6}*\frac{12}{1}\\ \\\frac{84}{6}\\ \\14[/tex]
pls help me it's due today
Answer:
it would be 2
Step-by-step explanation:
Calculate the area of the irregular polygon shown below:
21 square inches
22 square inches
26 square inches
29 square inches
Answer:
26
Step-by-step explanation:
Sam’s Discount Tires advertise a tire that originally cost $50 on sale for $35. What is the percentage discount?
need it fast if you can answer i’ll appreciate it! :)
if an airplane travels 660 mph how long will it take an airplane to travel to a distance of 2970 miles?
Answer:
4 hours and 30 minutes.
Step-by-step explanation:
660 miles = 1 hour
1320 miles = 2 hours
1980 miles = 3 hours
2640 miles = 4 hours
There are only 330 miles left and that is half of 660mph so therefore it would only take half an hour for these last 330 miles.
So we know that it will be taking 4 hours, you would then add the 30 minutes which gives you 4 hours and 30 minutes.
Hope this helps!
pls help
math math math
Answer:
1)
[tex] \frac{3 {b}^{5} }{2} [/tex]
2) -5
3)
[tex] - 2 {a}^{2} {b}^{2} [/tex]
4) 2a
Answer:
What is the value of x so I can solve it
Random sampling is to ________ as random assignment is to ________.
It should be noted random sampling is to survey as random assignment is to experiment.
What is random sampling?Random sampling can be regarded as kind of sampling technique whereby each of the sample posses equal probability of being chosen.
Therefore, random sampling is to survey.
Learn more about random sampling at:
https://brainly.com/question/13336365
Explain why an elevator with 3 people in it is less dense with an elevator with 50 people in it
Answer:
it has a lower mass/volume ratio
Step-by-step explanation:
Density is the ratio of mass to volume. An elevator will have the same volume, regardless of the number of people. The mass will increase with the number of people.
An elevator with 50 people in it will have a higher mass/volume ratio than an elevator with 3 people in it. Hence the latter is less dense.
__
Additional comment
50 persons would require an industrial elevator of perhaps 10,000 pound load capacity. There might be safety issues with carrying that many people.
0 write the quation of the
graph
to get the equation of any straight line, all we need is two points from it, Check the picture below, let's use those two.
[tex](\stackrel{x_1}{-5}~,~\stackrel{y_1}{-5})\qquad (\stackrel{x_2}{0}~,~\stackrel{y_2}{1}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{1}-\stackrel{y1}{(-5)}}}{\underset{run} {\underset{x_2}{0}-\underset{x_1}{(-5)}}}\implies \cfrac{1+5}{0+5}\implies \cfrac{6}{5}[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-5)}=\stackrel{m}{\cfrac{6}{5}}(x-\stackrel{x_1}{(-5)}) \\\\\\ y+5=\cfrac{6}{5}(x+5)\implies y+5=\cfrac{6}{5}x+6\implies y=\cfrac{6}{5}x+1[/tex]
HELPP PLEASEEEE ANYONE!!
Answer:
kathryn= 6 years old
her mother= 38 years old
Step-by-step explanation:
kathryn=x
mother= x²+2
x²+2 +x=44
x=6
kathryn= 6 years old
her mother= 38 years old
A skateboard was reduced in price from $50 to $43. What was the percent decrease?
2%
14%
16%
7%
P.S. thank you in advance.
Answer:
14%
Step-by-step explanation:
50 - 43= 7,
solve x/100 * 50 = 7,
x = 14
7 = 14% of 50
if a=under root s(s-a)(s-b)(s-c) then the value of a, when a =3 b =4c = 5 and s =a+b+c by 2
Answer:
6
Step-by-step explanation:
Here it's given that ,
[tex]\sf\red{\longrightarrow} A=\sqrt{s(s-a)(s-b)(s-c)}[/tex]
Also ,
[tex]\sf\red{\longrightarrow} s =\dfrac{a+b+c}{2}[/tex]
And we need to find out the value of A , when
a = 3b = 4c = 5So , on substituting the respective values to find s we have ,
[tex]\sf\red{\longrightarrow} s =\dfrac{3+4+5}{2}=\dfrac{12}{2}=\bf{6}[/tex]
Now let's find out A as ,
[tex]\sf\red{\longrightarrow} A = \sqrt{6(6-3)(6-4)(6-5)} \\[/tex]
[tex]\sf\red{\longrightarrow}A =\sqrt{6 * 3 * 2 * 1}\\[/tex]
[tex]\sf\red{\longrightarrow} A = \sqrt{3^2 * 2^2 *1^2}\\[/tex]
[tex]\sf\red{\longrightarrow}A = 3*2\\[/tex]
[tex]\sf\red{\longrightarrow}\boxed{\qquad \blue{\bf A = 6 \qquad}}[/tex]
PLS HELP I NEED THIS DONE BY TODAY!!!
Answer:
10.08
Step-by-step explanation:
In [tex]\triangle ABC,\: m\angle ACB =90\degree [/tex]
[tex]\implies \triangle ABC [/tex] is a right triangle, in which side AB is hypotenuse and sides AC and BC are mutually perpendicular.
By using Pythagoras theorem:
[tex]AC^2 = AB^2 - BC^2 \\ \\ = {(11)}^{2} - {(4.4)}^{2} \\ \\ = 121 - 19.36 \\ \\ = 101.64 \\ \\ \implies \: AC= \sqrt{101.64} \\ \\ \huge\implies \: \red{AC=10.08}[/tex]
