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
The graph shows the number of points, y, a player earns in a balloon game
based on the number of balloons popped, X.
if are is 24cm² find the x
Answer:
[tex]x = 6[/tex]
Explanation:
Given:
[tex]Area = 24cm^2[/tex]
See attachment for shape
Required
Find x
The attached shape is a rectangle.
So:
[tex]x * 4 = 24[/tex]
[tex]4x = 24[/tex]
Divide both sides by 4
[tex]\frac{4x}{4} = \frac{24}{4}[/tex]
[tex]x = \frac{24}{4}[/tex]
[tex]x = 6[/tex]
20 is what. % more than 5
Answer:
400%
Step-by-step explanation:
20 divided by 5 = 4
100 times 4 = 400
Find the solution
4y-x=5+2y
3x+7y=24
Answer:
24
Step-by-step explanation:
Linda made $270 for 18 hours of work.
At the same rate, how much would she make for 7 hours of work?
$
Answer:
105
Step-by-step explanation:
so you divide 270 by 18 hours to get 15 , so she gets paid £15 every hour
you times 15 by 7 = 105
Answer:
Linda would make $105 for 7 hours of work, she made the same amout of money per hour.
Step-by-step explanation:
270/18=15
15 x 7= 105
There are five trees per square mile. Linda cuts down every tree in a 6
mile by 4 mile area.
How many trees did Linda cut down?
Answer:
3 trees and a square mile takes 1 tree
Step-by-step explanation:
a square mile means 2 miles each
Answer:
120
Step-by-step explanation:
Length=6
Width=4
L×W=A
6×4=24
A× (amount of trees in a square mile) =Ans.
24×5=120
#gamer
please help me on this will give you brainliest!!
Answer:
AC = 36
Step-by-step explanation:
since these triangles are similar, we can use the triangle similitary theorem. This means that the sides are proportional to each other.
ef/bc = 5/45 (1/9) = ed/ba = 2/18 (1/9)
we can see the sides are in a ratio of 1:9, and plug it in the proportion
df/ac = 1/9
4/ac = 1/9
cross multiply and we get that ac = 36
What is the length of segment AB?
Answer:
Option 1
Step-by-step explanation:
Use Pythagorean theorem,
AB² = base² + altitude²
= 7² + 6²
= 49 + 36
= 85
AB =√85
Answer:
option a.
6²+7²=ab²(by Pythagoras theorem)
36+49=ab²
85=ab²
square root 85=ab
At 10 AM, one share of Starbucks stock was $35. By 2 PM the price was $41. The rate the Starbucks stock value was changing is - per hour
Answer:
1.50$
Step-by-step explanation:
difference in money amount: $6
difference in hours: 4
6 divided by 4 equals 1.50.
1.50 times 4 equals 6, hence its 1.50 per hour.
The rate of change in the Starbucks stock value is 150%.
Given that, At 10 AM, one share of Starbucks stock was $35. By 2 PM the price was $41.
We need to find the rate the Starbucks stock value was changing is - per hour.
What is the rate of change?A rate of change is a rate that describes how one quantity changes in relation to another quantity.
Now, the difference in money=41-35=$6
The number of hours between 10 AM to 2 PM is 4 hours.
The rate of change = The difference in money/Number of hours × 100
=6/4 × 100
=150%
Therefore, the rate of change in the Starbucks stock value is 150%.
To learn more about the rate of change visit:
https://brainly.com/question/12786410.
#SPJ2
Plz help me plz
Also phone reval XD
Answer:
5.50
Step-by-step explanation:
5 = whole number
.
5 = Tenths
0 = Hundreths
5.50
Hope this Helps!Over a 30-day period, the mean temperature in Morristown was 56°F with a standard deviation of 8.4°F and the mean temperature in San Juan was 67°F with a standard deviation of 1.5°F.
What statement best describes the data?
The temperatures were of similar consistency in Morristown and San Juan.
The temperatures were more consistent in Morristown.
The temperatures were more consistent in San Juan.
Answer: i think the answer would be d the temperatures were more consistent in san juan im pretty sure
Step-by-step explanation:
hope this helped im pretty sure this is right check my yt channel out hailey azbell
A laptop computer is normally $1300 but is discounted to $988. What percent of the original price does Charles pay?
Answer:
Step-by-step explanation:
Your answer
24% discount.
Pays a total of 76 % cost
Mark it as Brainlist. Follow me for more answer.
Write an expression, in its simplest form, for the volume of this cuboid:
Answer:
volume of cuboid=l×b×h
=2x+7+x+5
Answer:
volume of cuboid= l×b×h=(2x+7)x×5=5x×2x+5x×7
=10x²+35x
A TV has a length of 68 inches and a height of 51
inches. When TV's are advertised the size listed is the
diagonal length. What would be the advertised size of
this TV?
Answer:
85 inches
Step-by-step explanation:
Using pythag. A^2 + B^2 = C^2
(68*68) + (51*51) = 7225^2
Thus if you square root 7225, you get your answer - 85 inches.
How many solutions does the equation have? -10(x - 1) = 10 - 10x *
O Zero Solutions
O 1 Solution
O Infinite Solutions
Answer:
infinite
Step-by-step explanation:
it results in 10-10x=10-10x if you simplify
can also be simplified more into x=x
but we already know x has to equal x.
factorise x^12 y^4 - x^4 y^12
PLEASE PLEASE explain in step by step Pleasseeeeee
Answer:
Step-by-step explanation:
First, look at your terms. You have two terms and two variables in each. So they can be factored out because you can distribute them back in easily.
Focus one variable first, x. You cant factor an x^12 out of an x^4. You can, but you really don't want to, it'll turn your problem into a mess. So the only thing you can do is factor out the lower exponent, x^4.
[tex]x^4(x^8y^4-y^1^2)[/tex]
We arent done yet because the terms still share the y variable. You cant factor a y^12 from a y^4. This is the same problem with the x variable. So take out the lower one, y^4.
[tex]x^4y^4(x^8-y^8)[/tex]
Please help!!!! The roots of x^2-2x-2=0 are A.1+square root of 3 B.1+square root of 12 or C.No real roots
Answer:
A
Step-by-step explanation:
We have the equation:
[tex]x^2-2x-2=0[/tex]
We can use the quadratic formula. In this case, a = 1, b = -2, and c = -2. Hence:
[tex]\displaystyle x=\frac{-(-2)\pm\sqrt{(-2)^2-4(1)(-2)}}{2(1)}[/tex]
Evaluate:
[tex]\displaystyle x=\frac{2\pm\sqrt{12}}{2}[/tex]
Simplify:
[tex]\sqrt{12}=\sqrt{4}\cdot\sqrt{3}=2\sqrt{3}[/tex]
Hence:
[tex]\displaystyle x=\frac{2\pm2\sqrt{3}}{2}[/tex]
Divide:
[tex]x=1\pm\sqrt3[/tex]
The correct answer is A.
what is the simplest from of this expression? (-3x^2 + 4x) + (2x^2 - x -11)
A. -x^2 + 3x + 11
B. -x^2 + 5x - 11
C. -x^2 + 5x + 11
D. -x^2 + 3x - 11
Answer:
D
Step-by-step explanation:
Can someone help please
Answer:
YES
Step-by-step explanation:
Please help solve the problem below.
Answer:
1. x = 2
2. x = 5
3. x = 8
4. x = 28
5. x = 13
6. x = 11
7. x = 0
8. x = 72
9. x = 6
10. x = 38
Step-by-step explanation:
hope that helps!
1. subtract 6 on both sides
2. add 3 on both sides
3. divide both sides by 2
4. multiply both sides by 2
5. add 8 on both sides
6. subtract 9 on both sides
7. add 5 on both sides
8. multiply both sides by 6
9. divide both sides by 4
10. add 18 on both sides
14. AMKL is an isosceles triangle with MK ML.If MK = 7x - 15, KL = 4x - 6, and ML = 10X - 12, find x and the measure of each side.
Answer:
You can do it! Sorry i can't help because your on a different level. Try your best!
Step-by-step explanation:
PLS HELP!!! WILL GIVE BRAINLIEST IF CORRECT!!!
Answer:
Scale factor 3
Step-by-step explanation:
The rectangle is enlarged by a scale factor of 5. What is the new
measurement of the longest side?
Answer:
25 I'm pretty sure
Step-by-step explanation:
5×5=25
Answer:
25 cm
Step-by-step explanation:
If it is enlarged by the scale factor of 5, you are multiplying by 5. 5 cm is the longest side, so therefore 5 cm times 5 cm is equal to 25.
3² • 9³ = [ ]
solve
Answer:
3⁸ or 6561
Step-by-step explanation:
First, let's look at PEMDAS - Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.
There are no parentheses, so let's solve the exponents.
3² • 9³
3² = 9
9³ = 729
Your expression is:
9 • 729
Now let's multiply.
= 6561
This number can also be expressed with exponents.
Since 9 = 3², 9³ = 3²⁽³⁾
Now your expression is:
3² • 3²⁽³⁾
First, solve the exponents by multiplying.
3² • 3⁶
When you multiply two expressions with exponents that have the same base (3), you add the exponents.
3² • 3⁶ = 3⁽²⁺⁶⁾ = 3⁸
3⁸ also equals 6561.
Your answer is 3⁸ or 6561.
Hope this helps!
A line with a slope of 2 passes through the point (5, 8). What is its equation in slope-intercept form? (I will make u brainleist)
Answer:
y= 2x -2
Step-by-step explanation:
I need some help on this question! I will mark you if you answer.
Answer:
definitely 145
Step-by-step explanation:
It is 145 degrees I hope this helps :)
NEEEED HELP!!!!!!!!!
Answer:
1/3 is your awnser also what ur name in prodigy ill play with u im level 100
Step-by-step explanation:
Answer:
[tex] \frac{2}{5} + \: x = \frac{11}{15} [/tex]
5.3=15
2.3=6
[tex] \frac{6}{15} + \frac{5}{15} [/tex]
What is the equation, in point-slope form, of the line passing through the point (8, -3) with a slope of 5?
Pleaseee help answer correctly !!!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!
Answer:
108º
Step-by-step explanation:
to find the sum of interior angles: ( n − 2 ) × 180 = x
x = 540º
n = # of interior angles
first, solve for n
(n - 2) • 180 = 540 distribute to 180 to (n - 2)
180n - 360 = 540 add 360 to both sides
180n = 900 divide both sides by 180
n = 5
to find measure of each angle:
540 ÷ 5 = 108º
Please pleaseeee help!
Im so lost this is the last question i have and I’ve been working on it forever. Even asked my mom and she had no idea! Helpp please!!
Answer:
Remember that the roots are the values of the variable when the expression equals 0.
a: 4 + 3 = 7 and 4*3 = 12 so we have (x + 3)(x + 4) with roots -3, -4
b: -4 + -2 = -6 and -4*-2=8 so we have (t-2)(t-4) with roots 2, 4
c: 2*-4 + 6 = -2 and -4*6=24 so we have (2n+6)(n-4) with roots -3, 4
d: -7+-4 = -11 and -7*-4=28 so we have (y-4)(y-7) with roots 4, 7