Answer:
19x+2x=AA
31x+0.50x=BB
Step-by-step explanation:
Answer:
A = 2x +19
B = 0.50x + 31
Plan A is cheaper than Plan B when x < 8 movies
Step-by-step explanation:
2x + 19 = 0.50x + 31
1.5x = 12
x = 8
3x - 4y =7
3x - 4y =9
Answer:
No solution
Step-by-step explanation:
An airplane 30,000 feet above the ground begins descending at a rate of 2,000 feet per minute. Write an equation to model the situation. Find the altitude of the plane after 5 minutes
This graph shows the amount of charge left on my computer, c, after I have been awake for h hours.
How many hours will I have been awake when my computer has no charge left?
Use the sketch tool if it helps you with your thinking.
Based on the graph given above, the hours you will have to be awake when your computer has 0% charge is: 4.5 hours.
How to Interpret a Graph?Analyzing the graph given in the image above, where c represents the amount of charge you have left on your computer, and h represents the number of hours after you have been awake, the graph shows the following:
The unit rate = -30, which means the charge on your computer dropped at 30% per hour.The initial charge on your computer was the y-intercept of the graph, which is 90%.Your computer will have 0% after 4.5 hours that you have been awake (this is the x-intercept of the graph).Therefore, the number of hours you will have been awake for your computer to have no charge left is: 4.5 hours.
Learn more about graph on:
https://brainly.com/question/25184007
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Harvey is studying the polynomial f(x) = (2x - 3)(x - 4)(x2 + 3) and determines that the polynomial has four real roots. Is
Harvey's statement CORRECT?
A. No, the polynomial f(x) has 2 real roots and 2 complex roots when solved.
O B. Yes, the polynomial f(x) has 4 x-intercepts so the function has 4 real roots.
C. Yes, the polynomial f(x) has a degree of 4 so the function has 4 real roots.
OD. No, the polynomial f(x) has 3 real roots because there are 3 factors.
Answer:
It is A, I highly suggest you should read my explanation.
Step-by-step explanation:
(2x - 3)(x - 4)(x^2 + 3)
Exponent of 2x = 1
Exponent of x = 1
Exponent of x^2 = 2
Add them all together to get the degree. 1 + 1 + 2 = 4
Now we can tell that the polynomial can have 1,2,3,4, or no roots at all. The max number roots it can have is 4
To see the number of roots it has, we have to set each part equal to 0
2x - 3 = 0
Add 3 to both sides
2x - 3 + 3 = 0 + 3
2x = 3
Divide both sides by 2
2x/2 = 3/2
x = 3/2 or 1.5
Next,
x - 4 = 0
Add four to both sides
x - 4 + 4 = 0 + 4
x = 4
Then,
x^2 + 3 = 0
Subtract 3 from both sides
x^2 + 3 - 3 = 0 - 3
x^2 = -3
Find the square root of both sides
sqrt(x^2) = sqrt(-3)
x = i*sqrt(3), -i*sqrt(3)
Those are imaginary numbers, therefore there are not real.
The real roots are x = 3/2, 4
Harvey stated that this equation has four real roots. We can cross options B and C out since they stated he was correct.
It is not D because finding a square root of a number gives two answers; the positive and negative version, so it will have two solutions. There were only two real roots and the other two roots are complex roots.
That leaves us to option A, which states that there are 2 real and 2 complex roots. It is correct
Lindsay has scored 15 goals in 10 lacrosse games this season. a) What is her unit rate of scoring? b) How many goals might Lindsay score in 35 games? What assumptions do you make?
ASAP!! 20POINTS!! Students just finished taking test and these are the scores: 75, 80, 62, 98, 90, 86, 55, 86, 92, 66. What is the median of the scores?
A.83
B.86
C.79
D.43
A is the answer
Step-by-step explanation:
8. Can Sandra claim Debbie as a qualifying relative on her 2019 return? a. Yes, because Debbie lived with Sandra as a member of her household for all of 2019. b. No, because Debbie had gross income of more than $4,200 during the tax year.
Answer:
b. No, because Debbie had gross income of more than $4,200 during the tax year.
Step-by-step explanation:
Qualifying relative refers to the person those who meet the five of the requirements of the Internal revenue Service or the IRS. They are :
-- The person is not a qualifying child.
-- Individual must be a citizen of U.S., Canada or Mexico or alien resident of the USA.
-- The person should be a relative of the tax payer for a complete and has a relationship with the tax payer which is either by blood or by donation.
-- The tax payer should be supporting a higher than half of the expenses of the person.
-- Individual must have less than a gross income of 4,200 dollar in the year 2019.
Since, gross income is 18,250 dollar of Debbie and therefore she is not a qualifying relative.
The yearbook club had a meeting. The meeting had 24 people, which is three-fourths of the club. How many people are in the club?
Answer:
32
Brainiest plz? :)
helpp please 6a-11=13
Answer:
A=18 because 6+18 (was 6+a) is 24 - 11 = 13
Step-by-step explanation:
A=18
Answer:
a = 4
Step-by-step explanation:
add 11 on the = side 11+13 = 24
now you're left with: 6a=24
divide 6÷24
a= 4
What is the distance from P to Q?
Answer:
B) 5 units
Step-by-step explanation:
3-(-1)²+-1-(-4)²=c²
4²+3²=c²
16+9=c²
25=c²
√25=c
5=c
Find x ?
PLEASE HELP
Answer:
x = 16
Step-by-step explanation:
help, will give brainliest, due tonight, help asap
Answer:
(8,5)
Step-by-step explanation:
quadratic formula
Someone plz help me I will give BRAINLIEST!!!!
Answer:
Step-by-step explanation:
16 x 3 x 1/8 = (48 x 1)/8 = 48/8 = 6
What is a value of \sqrt(7) inches to the nearest hundredth?
Answer:
2.65
Step-by-step explanation:
Using a calculator's square root key, we get √7 = 2.64575....
To the nearest hundredth, that'd be √7 = 2.65.
18. A juice recipe calls for 3 1/2 cups
of sugar and will serve 60 people.
How much sugar would you need
if you reduced the recipe to serve
only 48 people?
A 4 2/3c B 3 1/2c C 2 4/5 c D 2 1/2c
Answer:
C. 2 [tex]\frac{4}{5}[/tex] cups
Step-by-step explanation:
We want 3.5 (3 1/2) cups of sugar that serves 60 people to serve 48 people instead. So we use proportions. Set it up:
[tex]\frac{x}{3.5} = \frac{48}{60}[/tex]
60x = 168 (48 x 3.5)
/60 /60
x = 2.8 cups of sugar serves 48 people.
Change 2.8 into fractions: 2 [tex]\frac{4}{5}[/tex]
i need help asapp i’ll be giving a brainliest to the person with the correct answer
Are they correct? Is that the question? Well, the first one is correct because Slope (m) = -6/1 =-6
Equation of the line:
y = -6x + 15
When x=0, y = 15
When y=0, x = 2.5
and the other one:
Is incorrect and the correct answer is A because y= 7.5x -2. 7.5 is positive, the slope, and -2 is the y-intercept. Its negative.
15. Find the length of x. Round to 1 decimal place.
Which answer choice shows the decimals in order from least to greatest?
A. 0.013, 0.0104, 0.0118, 0.0108, 0.00149
B. 0.00149, 0.0104, 0.0108, 0.0118, 0.013
C. 0.013, 0.0118, 0.0108, 0.0104, 0.00149
D. 0.013. 0.0118. 0.0108. 0.00149. 0.0104
Answer:
B.
Step-by-step explanation:
Only 0.00149, 0.0104, 0.0108, 0.0118, 0.013 are in ascending order.
(this is separate)
1/2 pass 2;00
1/2 till 1:00
1/4 till 3:00
1/4 after 4:00
1/2 pass 12:00 XD
Answer: 2/1
Step-by-step explanation:
Find sin B as a decimal and round to the nearest hundredth.
Answer:
sin B= 33.06
Step-by-step explanation:
Hope this Helped!
what is the slope of (4,-6) and (4,4)
Answer:
Undefined
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(4-(-6))/(4-4)
m=(4+6)/0
m=10/0
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21. Carmen spent $1.28 for 8 pieces of
candy. How much would Carmen
have to pay for 15 pieces of candy?
A $3.40
B $2.40
C $2.10
D $1.65
Answer:
2.40
Step-by-step explanation:
A garden table and a bench cost $935 combined. The garden table costs $85 more than the bench. What is the cost of the bench?
Answer:
The bench costs $425
And the Table costs $510
Step-by-step explanation:
table + bench = $ 935
$85 + 2b = $935
$935 - $ 85 = $ 850
$850/ 2 = 425 = b
What is the value of the power a if 5a = 1/125
Answer:
x = -3
There is a base f 5 on the left side, so write the denominator on the right as a base of
5 as well.
5
x
=
1
125
5
x
=
1
5
3
Move the base to the numerator.
5
x
=
5
−
3
If the bases are equal, the indices are equal:
x
=
−
3
Answer:
The answer is 1/625
Step-by-step explanation:
The reason is because 5a = 1/125
Therefore, to find the value of "a" we need to divide!
So, a = 1/125 / 5
⇒ 1/125 × 1/5 ( Reciprocal when we divide )
⇒ 1/125 × 5
→ 1/625
I hope this answer helps!
Solve the inequality.
12
%-
>8-2%
O A. x>3
O B. x>
O C. >> 23
O D. x>-
Write an exponential function in the form y=ab^xy=ab x that goes through points (0, 3)(0,3) and (4, 7203)(4,7203).
Answer:
[tex]y = 3(7)^x[/tex]
Step-by-step explanation:
Given
[tex](x_1,y_1) = (0,3)[/tex]
[tex](x_2,y_2) = (4,7203)[/tex]
Required
Determine an exponential function
Substitute 0 for x and 3 for y in [tex]y=ab^x[/tex]
[tex]3 = ab^0[/tex]
[tex]3 = a*1[/tex]
[tex]3 = a[/tex]
[tex]a = 3[/tex]
Substitute 4 for x and 7203 for y in [tex]y=ab^x[/tex]
[tex]7203= ab^4[/tex]
Substitute 3 for a
[tex]7203= 3*b^4[/tex]
Divide both sides by 3
[tex]2401= b^4[/tex]
Take 4th root of both sides
[tex]\sqrt[4]{2401} = b[/tex]
[tex]7 = b[/tex]
[tex]b = 7[/tex]
Substitute 3 for a and 7 for b in [tex]y=ab^x[/tex]
[tex]y = 3(7)^x[/tex]
A certain coin is a circle with diameter 42 mm. What is the exact area of each side of the coin?
The exact area of each side of the coin is mm.
(Simplify your answer. Type an exact answer in terms of .)
The area of a circle is r^2 x PI
r is half the diameter = 21mm
Area = 21^2 x PI
area = 441pi
Answer:
A≈1.39×10-3m²
Step-by-step explanation:
what is b called in a triangle? PLEASE HURRY!
Answer:
B Is called legs
Step-by-step explanation:
Answer:
what are the answers ?
Step-by-step explanation:
I cant see the other answers I only see leg
-2(x - 2) = -3 - 21 I need help with that question, I've been trying to solve it for hours but i cant find the answer
Answer:
x = 14
Step-by-step explanation:
you would first distribute the -2 with x - 2, which should give you -2x + 4, and you want to do the -3 - 21, which would give you -24, then subtract 4 from -2x + 4, then you should have -2x = -28, then divide it by -2, which should give you x = 14
Answer:
x = 14
Step-by-step explanation:
In this problem, we must isolate x
Given: -2(x - 2) = - 3 - 21Simplify the right side: -2(x - 2)= - 24Distribute the -2 to x and -2 (multiply): -2x + 4 = -24Subtract 4 from both sides: -2x = -28Divide both sides by -2: x = 1418
Write an exponential function to represent the table and give the percent
growth or decay.
(0,40),(1,20),(2,10),(3,5)
Answer:
Step-by-step explanation:
f(t) = 40×0.5^t