Answer:
30 minutes
Step-by-step explanation:
The percentage rises up by 40% every 20 minutes and if we divide that in half he paints 20% in 10 minutes. Wilson needs to paint 60% more of the bookcase. 40% plus 20% is 60%. So we just add 20 with 10 to get 30 minutes.
i need help with this please help asap
Step-by-step explanation:
4^5 (-2)^9/4^8 (-2)^3
= 4^(5 - 8) (-2^(9 - 3))
= 4^-3 (-2^6)
= (-2)^6/4^3
1). (-2)^a/4^b
a = 6, b = 3
2). c/d
c = -2, d = 4
Type the correct answer in the box,
One solution to a quadratic equation is x = 1 + 8i. What is the other solution?
We'll assume the quadratic equation has real coefficients
Answer:
The other solution is x=1-8i.
Step-by-step explanation:
The Complex Conjugate Root Theorem
if P(x) is a polynomial in x with real coefficients, and a + bi is a root of P(x) with a and b real numbers, then its complex conjugate a − bi is also a root of P(x).
The question does not specify if the quadratic equation has real coefficients, but we will assume that.
Given x=1+8i is one solution of the equation, the complex conjugate root theorem guarantees that the other solution must be x=1-8i.
Answer:
the answer would be x= 1-8i
Step-by-step explanation:
plato said so
Which points on the number line represent the quotients of these expressions? 12 divided by -6 and -15 divided by -3
Answer:
2,5
Step-by-step explanation:
basta isipin mo BWHAHAHAHAHHA balakadan
Answer:
Step-by-step explanation:
12 ÷(-6) = -2
-15÷(-3) = 5
Given the function f(x)=3x-1, what is f(3) ? Group of answer choices:
32
9
8
5
Answer:
8
Step-by-step explanation:
just substitute it in the equation and you will find the answer
Answer:
8
Step-by-step explanation:
Step 1:
f ( x ) = 3x - 1 Function
Step 2:
f ( x ) = 3 ( 3 ) - 1 Input x
Step 3:
f ( x ) = 9 - 1 Multiply
Answer:
f ( x ) = 8
Hope This Helps :)
Find the area of quadrilateral JKLM with vertices J(-2,1), K(3,1), L(3.-2), and M(-2,-2).*
The product of two consecutive integers is 19 less than their sum.
What equation represents the statement above?
Answer:
is there any choices?
Step-by-step explanation:
URGENT
What is the distance between the two points (-5, 6) and (8,-4)?
Given parameters:
Coordinates of the two points = (-5, 6) and (8,-4)
Unknown:
Distance between the two points.
To find the distance between two points, use the expression below;
Distance ² = (x₂ - x₁)² + (y₂ - y₁)²
where;
(-5, 6) and (8,-4)
x₂ = 8 , x₁ = -5 , y₂ = -4 and y₁ = 6
Input the parameters and solve;
Distance² = (8-(-5))² + (-4 - (6))²
= 169 + 100
= 269
Distance = [tex]\sqrt269}[/tex] = 16.4
The distance between the two points is 16.4
A number problem states, “–5 times a number, minus 22 gives a result of 23.” What is the number?
Answer:
im pretty sure its -9
Step-by-step explanation:
the equation explained would look something like this...
-5x-22=23
so you would isolate the variable by first adding 22 to both sides and the dividing by -5 on both sides
-5x-22=23
+22 +22
-5x/-5=45/-5
x=-9
100 points and brainliest
Mira and Sasha observed two points, P and Q, on a number line.
A number line is shown from negative 2 to positive 2 with increments of 2 over 8. A point P is shown at the seventh tick mark to the left of 0, and a point Q is shown at the seventh tick mark to the right of 0.
Sasha said that the absolute values of the numbers represented by the two points are different.
Mira said that the absolute values of the numbers represented by the two points are the same.
Which of the following explains who is correct?
A Sasha, because the points are of different signs
B Sasha, because the points are at different locations
C Mira, because each of the two points is 14 over 8 units from 0
D Mira, because the distance between the two points is 14 over 8 units
Answer:
A Sasha, because the points are of different signs
Answer:
D
Step-by-step explanation:
I got it right in my test and I saw it in some other brainly question
Can someone please help me?
Answer:
The answer the first question is: Always acute
The answer to the second is: 65 degrees
Step-by-step explanation:
:P
can someone help me on this plz
Claire prides herself on being a smart investor. Recently she invested some money and doubled the amount.
Feeling good about herself, she spent $4000 on a trip around the world. At the same time she reinvested
what was left. After returning from her trip, she found out that the amount invested had tripled. She
threw a party that cost $5000 and put the remaining $10000 in the bank. How much money did she have at
the start?
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Please help. I dont know how to do this
Answer:
y=3x+3
Step-by-step explanation:
3 is the slope, up 3 and right 1
3 is the y intercept
what is the answer to 3 * (x+4)
Answer:
3x + 12
Step-by-step explanation:
x+3=12 solve for x. x =
Answer:
X is 9
Step-by-step explanation:
9 + 3 = 12
Find the vertex and vertex form of
the following:
f(x) = x^2 - 8x+9
Answer:
(4,-7)
Step-by-step explanation:
Rewrite in vertex form and use this form to find the vertex ( h,k ) .
During a musical an orchestra is playing. As the music plays, the volume changes in the beginning of the piece can be modeled by the equation s = 10│x - 4│+ 50 where s represents the sound level in decibels and x represents the number of measures of music played. Explain in words each step to find the following question:
At what number(s) measures played would the sound level be at 80 decibles?
( I need the answers, plus the steps please and thank youuu :)
Answer:
Kindly check explanation
Step-by-step explanation:
Given the equation:
s = 10│x - 4│+ 50
Where s = sound level in decibels
x = number of measures of music played
Step 1:
Subtract 50 from Both sides
s - 50 = 10│x - 4│+ 50 - 50
s - 50 = 10│x - 4│
For s = 80
80 - 50 = 10│x - 4│
30 = 10│x - 4│
Clear the absolute value sign
± 30 = 10x - 40
Hence ;
Lower value :
- 30 + 40 = 10x
10 = 10x
x = 1
Upper value :
+30 + 40 = 10x
70 = 10x
x = 7
Jeremy bought 3.2 pounds of potatoes, 2.3 pounds
of oranges, and 2.7 pounds of onions. How many
pounds does his purchase weigh? What is the answer?
Answer:
8.2
Step-by-step explanation:
3.2+2.3+2.7=8.2
what's the answer to 2x^2 x= 10
Answer:
1
Step-by-step explanation:
In a student survey, forty part-time students were asked how many courses they were taking this term. The (incomplete) results are shown below: Please round your answers to 4 decimal places.
# of Courses Frequency Relative Frequency Cumulative Frequency
1 11 ? 11
2 ? 0.425 28
3 12 0.3 ?
What percent of students take exactly two courses?
%
Answer:
42.5%
Step-by-step explanation:
First we have to complete the table. We know that there are forty part time students so sum(f)=n=40. So, for two courses frequency is 40-11-12=17.
The relative frequency is the proportion of respective frequency and the sum of frequency. So, the missing relative frequency for 1st course is 11/40=0.275.
The missing relative frequency can also be computed as by subtracting given relative frequencies from 1 as sum of relative frequencies is 1. So, 1-0.425-0.3=0.275.
The cumulative frequency of respective class is the sum of frequency of previous classes and frequency of respective class. The missing cumulative frequency is 11+17+12 or 28+12= 40.
So, the complete table is
# of Courses Frequency Relative Frequency Cumulative Frequency
1 11 0.275 11
2 17 0.425 28
3 12 0.3 40
The percent of students takes exactly two courses=0.425*100=42.5%
please helpp with this!!
Answer:
a) 83½
[tex]b)n = 4 \frac{1}{3} \: \: or \: \: n = - 4 \frac{1}{3} [/tex]
Step-by-step explanation:
Please see the attached pictures for full solution.
Two species of birds are being compared. Species A can fly 18.9 miles in 42 minutes, while species B can fly 20.3 miles in 58 minutes. Which species is slower, and at what speed can it fly?
Answer:
all i know is species A is faster, but i dont really feel like seeing witch one goes how much slower or faster
Step-by-step explanation:
ok so if you use the unit speed, you should get a higher one for species A.
-20t – 12 < -17t -9<-20t + 6
Answer:
12
Step-by-step explanation:
Help please timed homework. 50 points
Answer:
I mean that's quite an interesting question
The ratio of boys to girls on the cross country team is 5 to 3. How many girls are on the team if there are 25 boys on the cross country team?
Answer:
If there are 25 boys on the team, we need to find out what 25 divided by 5 is.
It is 5.
So next wed o 5x3.
That's 15.
So there are 15 girls on the team.
Hope this helps!
Answer:
the answer is 15.
Step-by-step explanation:
5x5 = 25 so you would multiply 3x5 to get 15.
43/21 as a decimal rounded to the nearest hundreth
Answer:
2.05
Step-by-step explanation:
Answer:
2.05
Step-by-step explanation:
43/21 = 2.047 ≈ 2.05
The 4 is in the hundredths place, so you would look at the right of the 4 to determine what to round it to.
If it is 0-4 keep it the same
If it is 5-9 up it by one.
Example,
5.903 = 5.90
6.389= 6.39
ce is the angle bisector of dcb and m
Answer:
We are given that ray CE is an angle bisector of angle ACD. With this, we have the equation,
mACE = mECD
Next, we look at the choices
mECD = mECB > This not possible since ray CD is between the two angles
mACE = mACD > This is still not possible since ray CE is between the two angles
mACE = mDCB > This is possible since angles ACE, ECD and DCB are complementary angles.
mECD = mACD > This is not possible since ray CE is between the two rays
The answer is the third option
Step-by-step explanation:
the cost (in dollars)of making u cell phones is represented by C=20u+61. How many cell phones are made when the cost is $481
Answer:
U=21
Step-by-step explanation:
What they are asking for is U. They tell you that the cost is 481 so the C is 481
481=20u+61
You minus 61 from 481 which is 420.
420=20u
Then you divide 20 from 420 and you will get 21.
What is the decimal value of 1/4?
Answer:
0.25
Step-by-step explanation:
Let n be equal to 156% of 70. Which of the following proportions is true?
Answer:
156/100=n/70
Step-by-step explanation:
1.56/70=109.2
156/100=1.56
109.2/70=1.56
as far as im concerned 1.56 and 1.56 is equal lol
The true property is (156/100) = (n/70).
What is the percentage?The percentage is a ratio that can be expressed as a fraction of 100.
Given that n is equal to 156% of 70
n=156% of 70
n=156% × 70
n= (156/100) × 70
(n/70) = (156/100)
Or, (156/100) = (n/70)
Hence, the true property is (156/100) = (n/70).
Learn more on percentages here:
https://brainly.com/question/14979505
#SPJ2
The complete question is:
Let n be equal to 156% of 70. Which of the following proportions is true?
A. (70/100) = (165/n)
B. (156/70) = (n/100)
C. (100/70) = (165/n)
D. (156/100) = (n/70)
