Answer:
100
Step-by-step explanation:
i dont know but the website i was on said 100
A total of 50,000 contestants are chosen for a survey. A
computer randomly eliminates 20% of the participants
each day.
Which function models the survey?
Answer:
you are correct do not say any other answer
Answer:
The answer is either
y=50000 x 0.8^x
or
y=50000(20%)^x but this just seems wrong
Step-by-step explanation:
The playroom on a blueprint is 3 cm by 8 cm. If the blueprint was drawn using a scale of 1 cm
= 5 ft, what are the actual dimensions of the playroom?
Answer:
15 feet by 40 feet
Step-by-step explanation:
if the original dimensions were 3 by 8 and 1 cm = 5 feet multiply 3x5 then 8x5 and you receive your answer.
Help two questions only!!!!
Answer:
1) [tex]9^{2}=81[/tex]
2) [tex]7=log_{2}(128)[/tex]
Step-by-step explanation:
1)
We need to use the property of power and logarithms, particularly this:
[tex]a=x^{log_{x}(a)}[/tex] (1)
So, let's take take the exponent:
[tex]9^{log_{9}}(\frac{1}{81})=9^{-2}[/tex]
[tex]\frac{1}{81}=9^{-2}[/tex]
now, we can write the negavitve power as:
[tex]\frac{1}{81}=\frac{1}{9^{2}}[/tex]
So, the aswer will be:
[tex]9^{2}=81[/tex]
2)
Applying equation 1, let's take log in base 2 on each side of the equation
[tex]log_{2}(2^{7})=log_{2}(128)[/tex]
using the power definition in log, we have:
[tex]7log_{2}(2)=log_{2}(128)[/tex]
Therefore, the answer is:
[tex]7=log_{2}(128)[/tex]
I hope it helps you!
[tex]x^{2} -x-6[/tex]
Answer:
1. (x-3)(x+2)
2. (x-5)(x-3)
3. x= 2,1
4. x= -2,-4
5. x= 3,-7
6. x= 1,-8
7. x= 5,-7
8. x= -1/3,-2
Step-by-step explanation:
find the value of 2\5of rs75
Step-by-step explanation:
Given
[tex] \frac{2}{5} \times rs75 \\ = rs \: 15 \times 2 \\ = rs \: 30[/tex]
Hope it will help :)
Answer:
2÷5×75=30
Step-by-step explanation:
Which could be the measures of the interior angles of a triangle?
A. 50°, 45°, 45°
B. 60°, 60°, 60°
C. 70°, 70°, 70°
D. 80°, 55°, 25°
Answer:
B. 60°, 60°, 60°
Step-by-step explanation:
All triangle angles add up to 180
A) NOPE
50 + 45 + 45 = 140
B) YUP
60 + 60 + 60 = 180
C) NOPE
70 + 70 + 70 = 210
D) NOPE
80 + 55 + 25 = 160
what is the slope of this line?
Answer:
-1/200
Step-by-step explanation:
To get from one point to the other you rise (go down in this case since the slope is negative) $1 every time you make 200 more scarves.
Can a triangle be formed with the following measurements?: 4 m, 5.1 m, 12.5 m
Answer:
no
Step-by-step explanation:
Hello There!
So in order for it to be a triangle the sum of the two shorter sides has to be greater than the longest side
4+5.1=9.1
9.1 is not greater than 12.5 therefore a triangle cannot be formed with the given measurement
how do you solve for exterior angle therom
Answer:
The interior angles of a triangle add to 180°:a + b + c = 180°
Angles c and d make a straight angle, which is 180°:d + c = 180°
So d + c equals a + b + c:d + c = a + b + c.
Subtract c from both sides:d = a + b.
Step-by-step explanation:
Is the number 0.1875 rational or irrational
A DVD has a diameter of 12 centimeters. What is the area of the DVD? Round your answer to the nearest hundredth. Use 3.14 for π.
Answer:
area = 113.04 cm²
Step-by-step explanation:
radius = 12/2 = 6
area = πr² = 3.14(6²) = 113.04 cm²
What numbers correctly complete each equation?
All squares have the same value
the first one is 5.25 . you have to divide 10.5 by 2 and you'll get 5.25 and when you add 5.25 twice you'll get 10.5 which is the same as 10.50
solve the equation :)
We need help ASAP whatever you can do is fine please and thanks!!
Answer:
Angle 1: 130
Angle 3: 130
Angle 5: 50
Angle 6: 130
Step-by-step explanation:
If angle 2 is 50, that means 4,5, and 7 are 50 as well
Also, if we know angle 2 is 50, we know 1,3,8, and 6 are 130 since a line is always 180 (so subtract 50)
Let me know if you need more help!!
Someone help and plz make sure it’s right
Answer:
x=11
Step-by-step explanation:
3x+7+60+80=180
3x+147=180
3x=33
x=11
Hope this helps :D
BTW 180 degrees is how many degrees in a triangle
Ava brings a $20 bill to a store.She purchases 4 pairs of socks for $2.25 each and a new belt for $7.50.How much change will Ava receive when she pays for her clothes.
Answer:
3,50$
Step-by-step explanation:
(2,25 x 4) + 7,50 = 16,50$
20-16,50 = 3,50$
solve the simultaneous equation plz x
Answer:
x=4,y=3
Step-by-step explanation:
x=19-5y if we transpose equation 2 for x.
Plug that into equation 1
4(19-5y)+3y=25
76-20y+3y=25
76-25=17y
51=17y
y=3
Plug y=3 into equation 2
x+5(3)=19
x=19-15=4
We are having two equations,
4x + 3y = 25 (Equation No 1)x + 5y = 19 (Equation No 2)★ From Equation No 2 :-
>> x + 5y = 19
>> x = 19 - 5y
★ From Equation No 1 :-
Substitute here the value of x which we got above as (19 - 5y).
>> 4x + 3y = 25
>> 4 (19 - 5y) + 3y = 25
>> 4 × (19 - 5y) + 3y = 25
>> 76 - 20y + 3y = 25
>> 76 - 17y = 25
>> -17y = 25 - 76
>> -17y = -51
>> 17y = 51
>> y = 51 / 17
>> y = 3
★ Finding out value of x :-
>> x = 19 - 5y
>> x = 19 - 5(3)
>> x = 19 - 5 × (3)
>> x = 19 - 15
>> x = 4
The best description of a dilation of a figure is?
Answer:
an enlargement or a reduction of the figure
a slide of the figure
a turning of the figure about some fixed point
a mirror image of the figure
The best description of a dilation of a figure is a slide of the figure.
What is dilation?
A dilation is a transformation that changes the size of a figure. It can become larger or smaller but the shape of the figure does not change.
Now,
The best description of a dilation of a figure is a slide of the figure.
Learn more about the dilation visit:
https://brainly.in/question/7119691
#SPJ6
Linear inequality systems graphically
PLEASE PLEASE PLEASE PLEASE PLEASE HELP ME! And don't take my points if you don't have an answer. I need the answers quickly plz.
Answer:
Problem 1: x = 129, Problem 2, x = 133
Step-by-step explanation:
Problem 1: x = (4-2)x180 - 71 -112 - 48 = 129
Problem 2: x = (6-2)x180 - 90 - 130 - 93 - 150 - 124 = 133
is x+y=3 and x+y=7 a one solution, no solution, or an infinitely many solution
Answer:
No solution
Step-by-step explanation:
The lines are parallel because they have the same slope.
Elimination method also just gives you 3 = 7 which is not true, therefore no solutions.
2x + 6
96
solve for x using an algebraic equation
Answer:
v
Step-by-step explanation:
Gabe bought 4 books about animals, 2 books about outer space, and 3 books about trains. Each book cost \$5 . How much did Gabe spend on the books?
Answer:
45$RsAmountjjfjjdjehsvebhehehe
5. A water tank is in the shape of a right circular cylinder with a height of 20 feet and a volume of 320pi cubic feet. What is the diameter, in feet, of the water tank?
Answer:
8 ft.
Step-by-step explanation:
V = Bh B = area of the base h = height
The base is a circle, so [tex]B = \pi r^{2}[/tex]
320π = [tex]\pi r^{2} (20) = 20\pi r^{2}[/tex]
[tex]r^{2} = \frac{320\pi }{20\pi } = 16[/tex]
r = 4
d = 8 ft.
Mr. Johnson sells erasers for $3 each. He sold 96 erasers last week
and he sold 204 erasers this week.
Answer:
$900
Step-by-step explanation:
He makes $288 the first week and $612 the second week the total amount of money he makes is $900
Answer:
96*3= $288 from last week
204*3= $612 from this week
The total is $900 from both weeks
Step-by-step explanation:
Hope this is what you were asking!
Can you please help me with this math question umm i think it is 15 points
Answer:
C) ( -2, 6)
Step-by-step explanation:
y = -3x
y = 5x + 16
-3x = 5x + 16
-8x = 16
x = -2
y= -3(-2)
y = 6
(x,y) ---> ( -2, 6)
hii please help i’ll give brainliest!!
Answer:
your answer should be C.
Can you help? This is an AP Precalc problem
Notice that v points into the third quadrant since both of its components are negative. If you want a vector to point in the same direction, it would need to have the same sign on its components. So C is the correct choice.
The factor of 1/√80 comes from normalizing the vector v. Its norm/magnitude is
|v| = √((-4)² + (-8)²) = √(16 + 64) = √80
so the unit vector that points in the same direction as v is simply v / |v|.
Can Someone help me please.........
Answer:
1378 -3839=10
Step-by-step explanation:
The new protocols, but the fact is a great place for a long time, and it was very nice to be able to get the best the first place in the same manner as the most important part in a row and the rest of us to do with it, but the fact is that it was the only one who thinks and the
I need help on this question I got 145.13 but i dont know what I did wrong
Answer:
145.12
Step-by-step explanation:
3.14 * 16 / 2 + 120
I basically got the same answer