Answer:
p = -2
Step-by-step explanation:
Start by dividing both sides by 81 to get the power by itself.
[tex]3^p \cdot 81 = 9\\\\3^p=\frac{9}{81}=\frac{1}{9}[/tex]
Write the fraction using a power of 3.
[tex]3^p=\frac{1}{3^2}\\\\3^p=3^{-2}\\\\p=-2[/tex]
This assumes you know about negative exponents: [tex]a^{-n}=\frac{1}{a^n}[/tex]
can someone please help its my last one
Answer:
80 + 40 + (x + 64) = 180
120 + (x + 64) = 180
-120 -120
x + 64 = 60
-64 -64
X = -4
Step-by-step explanation:
Let's double check
64 - 4 = 60
60 + 80 + 40 = 180 It works!
Therefore X = -4.
Put these numbers in smallest to largest
3.07, 3.7, 3.77, 7.3, 7.33
A game has 50 cards with 10 each numbered 1 to 5,and a player must draw a 2 or a 3 to move out of the "start" position.
Answer:
The question isn't complete, so I will assume that we want to find the probability of moving out of the start position.
First, we know that there is a total of 50 cards.
of these 50 cards, we have:
10 with the number 1
10 with the number 2
10 with the number 3
10 with the number 4
10 with the number 5
To move out of the starting position, we need to draw a 2 or a 3.
And we have 10 of each, then there are 20 cards that allow us to move out of the start position.
The probability of moving out of the starting position in the first draw, is equal to the quotient between the number of cards that allow us to move out of the starting position (20) and the total number of cards (50), this is:
P = 20/50 = 2/5 = 0.4
Someone plz help me I beg u plz I need this I’ll really appreciate it
Answer:
i cant see the words
Step-by-step explanation:
25% of what number equals 100
Answer:
its 400
Step-by-step explanation:
Find the area of that with explanations thanks
Answer:
900m or 300m
Step-by-step explanation:
45 x 20 = 900
30 x 10 = 300
please help!!!
Solve (find x intercepts) using the quadratic formula
f(x)= -5x^+9x-4
Answer:
[tex]x[/tex]-intercepts at [tex](1,0)[/tex] and [tex](0.8,0)[/tex]
Step-by-step explanation:
A quadratic in the form [tex]ax^2+bx+c=y[/tex] crosses the [tex]x[/tex]-axis when [tex]y=0[/tex].
The first step is replacing [tex]f(x)[/tex] with [tex]y[/tex].
So: [tex]y= -5x^2+9x-4[/tex]. With the information above, we can find the [tex]x[/tex] intercepts by setting [tex]y = 0[/tex].
Therefore [tex]0=-5x^2+9x-4[/tex].
Now we can use the quadratic formula because it is in the form [tex]ax^2+bx+c=0[/tex].
Note the quadratic formula: [tex]\frac{-b\frac{+}{-}\sqrt{b^2-4ac} }{2a } = x[/tex].
To find the values of [tex]a[/tex],[tex]b[/tex] and [tex]c[/tex] we can compare the equation to the general equation.
Therefore: [tex]a=-5[/tex], [tex]b=9[/tex] and [tex]c=-4[/tex].
Now put these values into the quadratic formula:
[tex]\frac{-9\frac{+}{-}\sqrt{(9)^2-4(-5)(-4)} }{2(-5) } = x[/tex]
And simplify:
[tex]\frac{-9\frac{+}{-}\sqrt{81-80} }{-10 }[/tex] , [tex]\frac{-9\frac{+}{-}\sqrt{1} }{-10 }[/tex].
[tex]\sqrt{1} =1[/tex], therefore [tex]x = \frac{-9\frac{+}{-}1 }{-10 }[/tex]
Now we can have two values for [tex]x[/tex]. One when we take away the discriminant ([tex]b^2-4ac[/tex]) and one when we add it.
So [tex]x = \frac{-10}{-10} = 1[/tex]
or
[tex]x = \frac{-8}{-10} = 0.8[/tex]
Therefore [tex]x[/tex]-intercepts at [tex](1,0)[/tex] and [tex](0.8,0)[/tex]
What is "y" when x = -2 in the equation y = 2x + 5
Answer:
2 x -2 + 5
-4 + 5
1 = y
Step-by-step explanation:
Plug in the value of X and do the equation.
Answer:
y = 1
Step-by-step explanation:
When x = -2 :
y = 2x + 5
y = 2(-2) + 5
y = -4 + 5
y = 1
hey i’ll give brainliest please help
Answer:
I believe it would be C if not then im sorry
Step-by-step explanation:
hi! please help i’ll give brainliest
Answers:
deposition of eroded materials
Step-by-step explanation:
Jeff buys a cylindrical aquarium for his living room. The aquarium is 21.5 inches tall with a radius of 21 inches. What is the volume of the aquarium? Round answer to the tenth.
Sorry there isn't. I have experienced the same thing before an unfortunately I was not able to view the question after it was deleted. Sorry again :(
I would ask a question but half the mfkas on here have failed me so many tests. So I j want to let you guys know that you all are r e t a r t e d.
Answer:
please dont use the r slur :)) and if you care so much about your grades, heres an idea!! study on your OWN and dont rely on others
Step-by-step explanation:
Can someone help me out my grads are bad
Answer:
The modes are 0 and 2. There are two because there are the same number of numbers. (four 0s and four 2s)
choose 3 values that would make this inequality true 28 + x > 42
100
0
13
15
5
14
24
Answer:
100, 15, 24 I think that is it
Step-by-step explanation:
Answer: 100, 24, 15
Step-by-step explanation:
28+100= 128, 128>42
28+24=52, 52>42
28+15=43, 43>42
PLEASE ANSWER I NEED LOTS OF HELP!!!!!!!!!!!!!!
Answer:
40%
Step-by-step explanation:
Rachael liked 36/90 books movies that she watched. This simplifies to 2/5 which is 0.4. To find the percentage, we multiply 0.4 by 100 to get 40%.
PLZ HELP 50 POINTS Which is the function represented by the table?
A 2-column table with 4 rows. Column 1 is labeled x with entries negative 1, 0, 1, 2. Column 2 is labeled f (x) with entries 4, 5, 6, 7.
Answer:
the answer is a f(x)= x+5.
Step-by-step explanation:
the answer is f(x)= x+5 because in each row the value increases by 5.
Answer:
a
Step-by-step explanation:
A chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture. The premium antifreeze solution contains 70% pure antifreeze. The company wants to obtain 140 gallons of a mixture that contains 20% pure antifreeze. How many gallons of water and how many gallons of the premium antifreeze solution must be mixed
Answer:
40 gallons of premium antifreeze and 100 gallons of water should be used to obtain 140 gallons of a mixture that contains 20% pure antifreeze.
Step-by-step explanation:
Since a chemical company mixes pure water with their premium antifreeze solution to create an inexpensive antifreeze mixture, and the premium antifreeze solution contains 70% pure antifreeze, and the company wants to obtain 140 gallons of a mixture that contains 20% pure antifreeze, to To determine how many gallons of water and how many gallons of the premium antifreeze solution must be mixed, the following calculation must be performed:
50 x 0.7 + 50 x 0 = 35
40 x 0.7 + 60 x 0 = 28
30 x 0.7 + 70 x 0 = 21
29 x 0.7 + 71 x 0 = 20.3
28.57 x 0.7 + 71.43 x 0 = 20
140 x 0.2857 = 40
Therefore, 40 gallons of premium antifreeze and 100 gallons of water should be used to obtain 140 gallons of a mixture that contains 20% pure antifreeze.
ITS URGENT!!!!
SOMEBODY PLEASE HELP ME WITH THIS QUESTION!! YOU CAN SEE ALL THE ANSWER CHOICES IN THE PICTURE ABOVE!!! THANK YOU
Answer:
A
Step-by-step explanation:
y=2(x-3)^2-3
replace x for x in the table
so y=2(1-3)^2-3
-2*-2
4*2
8-3
y=5
just like in the table
Which point best represents 10?
P
Q
R
S
wt
0
1
2
4
5
S
P
R
Q
Answer:
Q
Step-by-step explanation:
The square root of √10 shown in decimal form is 3.1622776... and the placement of Q is the closest to the answer.
Which best describes the function represented by the data in the table? linear with a common ratio of 2 linear with a common first difference of 2 quadratic with a common ratio of 2 quadratic with a common first difference of 2
Answer:
linear with a common first difference of 2
Step-by-step explanation:
If this is linear, the common first difference, or slope, will be the same throughout the entire table.
The formula for slope is

For the first set of points, we have:
m=(0--2)/(-2--3) = (0+2)/(-2+3) = 2/1 = 2
For the second set of points, we have:
m = (4-0)/(0--2) = 4/(0+2) = 4/2 = 2
For the third set of points, we have:
m = (12-4)/(4-0) = 8/4 = 2
The rate of change, or slope, is constant; this makes the function a linear function with a common first difference of 2
Hope it helps
Answer:
b on edge 2021
Step-by-step explanation:
Write a verbal description of the
meaning of f(3) = 6.
Answer:
When your input is 3, (x value), the y-value would be 6.
Step-by-step explanation:
who's the queen of rap ?
Answer:
niki minaj " im the queen of rap" she said it
Step-by-step explanation:
Answer:
Nicki Minaj
Explanation:
Onika Tanya Maraj-Petty, known professionally as Nicki Minaj, has held the “Queen of Rap” title for at least ten years.
600 students sat a Math exam. If 86% of students passed the exam, the percentage of people who FAILED is
with step to step calculation
Answer:
84
Step-by-step explanation:
100-86 is 14
14percent passed so it is 84
Solve for x. The figure is a parallelogram
Answer:
x = 1
Step-by-step explanation:
The opposite angles in a parallelogram are congruent, then
94x + 1 = 95 ( subtract 1 from both sides )
94x = 94 ( divide both sides by 94 )
x = 1
An airplane takes off 12.5 miles south of a city and flies due north at a constant speed of 170 miles per hour. What is the planes position relative to the city after 45 minutes
In Stacia's town, 60% of registered people vote
regularly. A spinner with equal-sized sections
numbered 0 to 9 can be used to represent those
who do and
do not vote.
a. What numbers can be assigned to represent
those who do vote and those who do not vote?
Answer:
6 Voted , 4 Not Voted
Step-by-step explanation:
10 sections, so 0.60 * 10 = 6 sections Voted
0.40 * 10 = 4 sections not Voted
Can someone please help me out with this question please I beg you no links
Which measure describes the standard error of the mean?
A.
the central limit theorem
B.
the confidence interval
C.
the sample mean
D.
the standard deviation of the means
Answer: the standard deviation of the means (D)
Step-by-step explanation:
Describe the steps you can use to graph the function y=2x^2-8
Answer:
The first thing you need to find is the axis of symmetry by using
-b/2a
after you find that, use it to find the vertex of
x
2
+
8
In this case x should equal
0
so
y
=
0
2
+
8
giving just 8
the y-intercept is 8 as
c
=
8
the graph should look like this
graph{x^2+8 [-11.5, 8.5, 0.84, 10.84]}
it is a parabola.
https://socratic.org/answers/466874
or https://socratic.org/answers/466890
Step-by-step explanation:
Determine the volume of the rectangular prism. (3 points)
30/7 cm2
1/3cm
Answer:
10/7 cm^3
Step-by-step explanation:
I can only assume that '30/7 cm^2' represents the area of the base and 1/3 cm the height. If and only if that is the case, then the volume is
V = (base area)(height) = (30/7 cm^2)(1/3 cm) = 10/7 cm^3.