the zeros of the function f(x)=-(x+1)(x-3)(x+2) are -1,3 and ___ and the y-intercept of the is located at (0,__)
1) Simplify the expression
(3-4i)(1+5i)-(2-i)
2) Simplify the expression
^3√27x^6y^4
PLEASE SHOW WORK!
Answer:
21 + 12i
Step-by-step explanation:
Given
(3 - 4i)(1 + 5i) - (2 - i) expand the product of factors
= 3 + 11i - 20i² - 2 + i
= 3 + 11i + 20 - 2 + i collect like terms
= 21 + 12i
In the expression x is a real number, and a andare integers.
Use the properties of integer exponents to rewrite
BIU.
as an exponential expression with a single base and exponent
Answer:
a-n=1
Step-by-step explanation:
Find the slope and use the point to write an equation of the line in point slope form.
Answer:
y + 1 = [tex]\frac{1}{2}[/tex] (x + 2)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b ) a point on the line
Calculate m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (- 2, - 1) and (x₂, y₂ ) = (0, 0) ← 2 points on the line
m = [tex]\frac{0-(-1)}{0-(-2)}[/tex] = [tex]\frac{0+1}{0+2}[/tex] = [tex]\frac{1}{2}[/tex]
Using (a, b ) = (- 2, - 1 ) , then
y - (- 1) = [tex]\frac{1}{2}[/tex] (x - ( - 2) ) , that is
y + 1 = [tex]\frac{1}{2}[/tex] (x + 2) ← in point- slope form
1. Which is the meaning of the inequality - 6 < x in words?
Negative 6 is less than or equal to a.
Negative 6 is not equal to .
Negative 6 is greater than 3
Negative 6 is less than 2.
Answer:
first choice
Step-by-step explanation:
Solve the system of equations without graphing. Show your reasoning.
2y=x−4
4x+3y=5
[tex]\displaystyle \begin{cases} 2y=x-4 \\4x+3y=5 \end{cases } \Rightarrow \ominus \left \{ {{x-4=2y} \ | \cdot 4 \atop {4x+3y=5}} \right. \Rightarrow \\\\\\ 4x-16-4x-3y=8y-5 \\\\ -3y-16=8y-5 \\\\ -3y-8y=16-5 \\\\-11y=11 \\\\ y=-1 \ \ ; \ \ x=2y+4=2 \\\\ \rm Answer : \ (2 \ ; \ -1 )[/tex]
The formula for converting from Celsius to Fahrenheit is F=9/5C+32. The Fahrenheit temperature of a certain city has never exceeded 86 degrees. How would you describe this using Celsius temperature?
Answer:
The temperature in Celsius in this city has never exceeded 30 °C
Step-by-step explanation:
Just substitute F by the temperature in Fahrenheit and solve the equation:
86 = 9C/5+32 Multiply both sides by 5
5×86 = 9C +32×5
430 = 9C + 160 Subtract 160 in both sides
270 = 9C Divide both sides by 9
30 = C
3 4. What is the slope of the line that passes through (-2, 1) and (8,5)?
Answer: 2/5
Explanation: Ask if you want an explanation!
The question gives us two points, (-2, 1) and (8,5), from which we can find the slope and later the equation of the line.
Finding the Slope
The slope of the line (m) = (y₂ - y₁) ÷ (x₂ - x₁)
= (5 - 1) ÷ (8 - (-2))
= ⁴/₁₀
= ²/₅
Checking my answer:
We can check to see if the answer is correct by drawing the line and seeing if it passes through both points. If it does, then the slope is correct.
We can now use the point-slope form (y - y₁) = m(x - x₁)) to write the equation for this line:
⇒ y - 1 = ²/₅ (x + 2)
In the graph below (created using Desmos), the line passes through both points. This suggests that we calculated the slope correctly.
A painter charges $15.30 per hour, plus an additional amount for the supplies. If he made $187.81 on a job where he worked 7 hours, how much did the supplies cost?
Answer:
$80.87
Step-by-step explanation:
The cost of supplies would be $80.87 This is because 15.33 • 7 = 107.31 and 188.18 - 107.31 = 80.87
Wes wants to spend under $15 on lunch. He decides to buy pizza slices, which cost $2.50 each and a two liter soda which costs $1.75. What is the maximum number of pizza slices Wes can buy?
6. Write the equation that contains the point (3,-9), and in which the graph of the line has a slope of 4 in slope-intercept fom
Answer: y=4x-9
Step-by-step explanation: y=mx+b . formula
2. Select all the irrational numbers ILL GIVE ALL MY POINTS PLS HURRY
6x
49
-1.405
-0.3
V2
Answer:
1.405,0.3 and v2 nrjfbdjwbskcheidjwjdu
On average, a person’s heart beats about 4.2×107 times per year. There are about 7,600,000,000 people in the world. Use this data to approximate the number of heartbeats for all the people in the world per year. Expressing your answer in scientific notation in the form a×10 b , what are the values of a and b ?
A person heart beats is 4.2 x 10∧7
there are 7,600,000,000= 7.6 x 10∧9
the heartbeats for all the people here on earth= 4.2 x 10∧7 x 7.6 x 10∧9
choosing like terms
4.2 ×7.6×10∧7×10∧9
31.92x10∧(7+9)
31.92×10∧16
a=31.92
b=16
Answer:
[tex]3.192*10^1^7[/tex]
Step-by-step explanation:
To find this value, multiply the two values given:
4.2x10^7 = 4.2 x ( 10 x 10 x 10 x 10 x 10 x 10 x 10) = 42000000
42000000 x 7600000000 = 319200000000000000
Then convert 319200000000000000 into scientific notation:
319200000000000000 = 3.19200000000000000
Cut off all the zeroes and I moved the decimal 17 places to the left, so the exponent will be positive:
[tex]3.192*10^1^7[/tex]
Karla is making fresh grape jelly. She buys 18.7 pounds of grapes.
Estimate the total cost. $2.78(18.7)
Karla will spend about___on grapes.
1. $19
2. $36
3. $40
4. $60
Answer:
60
Step-by-step explanation:
read answer from list below this question
!!I WILL MARK BRAINEST!! number 6 please. i did the question but i’m not sure if i even got the answer correct. please help me, thank you!
Step-by-step explanation:
If everything is kept in terms of x then:
For part A the general area would just be side times side.
Here it would be (30x)(4x)
=[tex]120x^{2}[/tex]
For part B since you have 5 sections divide the long side by 5.
[tex]\frac{30x}{5} =6x[/tex]
Then multiply by the other side of the rectangle to find the area of one section.
6x(4x)=[tex]24x^{2}[/tex]
Alternatively you could just divide the large area by 5 to get the area of one section.
[tex]\frac{120x^{2} }{5}=24x^{2}[/tex]
Rewrite each polynomial in standard form then identify the leading coefficient, degree, and number of terms 5x^3+ 2x-1-10x^2+9x^5-3x^4
Answer:
9x⁵-3x⁴+5x³-10x²+2x-1
degree = 5
leading coefficient = 9
number of terms = 6 (many terms)
Step-by-step explanation:
A shipping container will be used to transport several 50-kilogram crates across the country by rail. The greatest weight that can be loaded into the container is 24000 kilograms. Other shipments weighing 3900 kilograms have already been loaded into the container. Write and solve an inequality which can be used to determine xx, the number of 50-kilogram crates that can be loaded into the shipping container.
Answer:
See belowStep-by-step explanation:
Capacity of the container = 24000 kgLoaded weight = 3900 kgNumber of crates = xRequired inequality:
50x + 3900 ≤ 24000Solving:
50x ≤ 20100x ≤ 20100/50x ≤ 402Answer:
Inequality: 50x+9500≤27500
Answer: x≤360
Step-by-step explanation:
4x -5 <11
solve for x
Answer:
x < 4 is the solution.
I hope this helps!
Answer:
The answer is x<4. I hope this helps!
Which fraction is equal to 0.7 repeating
Answer:7/9
Step-by-step explanation:
Answer:
7/9
Step-by-step explanation:
I hope this helps you.
PLEASE ANSWER 9 AMD 10 I BEG YOU YOU DONT NO HOW MUCH IT WOULD HELP
9a: 1/5. She takes a 1/5 and puts it in each so your fraction is 1/5
9b: $105. 525 / 5 = 105
10: Option 1. He gains more money this way.
In option 1 if he gets his allowence for 4 weeks, he would make $15 (1+2+4+8).
But in option 2 he would only make $4 because the square of 1 is 1 (1+1+1+1)
Hope that helps and hope I did that correctly
Total amount = $525
Split by a fraction, divide by 5 and then again divide by 5:
525*1/5*1/5 = 525*1/25 = 21a) The fraction = 1/25b) The amount = $21#10Option 1 results in sequence:
1, 1*2=2, 2*2=4, 4*2=8, etcOption 2 results in sequence:
1, 1² = 1, 1² = 1, 1² = 1, etc.It's obvious that option 1 is a better choice.
(x^2 + 2x + 2)(x + 5) = 0
Line g || line h? Why?
Answer:
Step-by-step explanation:
We say that two lines (on the same plane) are parallel to each other if they never intersect each other, ragardless of how far they are extended on either
which point is on the graph of f(x) = 2 * 5^x
Answer:
4,8
Step-by-step explanation:
Trust me
1x+3 = 5x+2 what is the value of x?
Answer:
x = 1/4
Step-by-step explanation:
1x+3 = 5x+2
1 = 4x
x = 1/4
Answer:
x= [tex]\frac{1}{4}[/tex]
---------------------------------------------------------------------------------------------------------------
Check:
1x[tex]\frac{1}{4}[/tex]+3 = 5x[tex]\frac{1}{4}[/tex]+2
0.25+3=1.25+2
3.25=3.25
This is true so X=[tex]\frac{1}{4}[/tex]
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If this helped pls give me brainliest
Richard tosses a ball into the altThe function b(t) = - 5t ^ 2 + 10t + 6 the the ball itDoes the a height of 12 m?
Answer:Nope
Step-by-step explanation:
The equation, b(t) = - 5t ^ 2 + 10t + 6, is a parabola with a vertex. We must find whether that vertex is equal to or exceeds 12m. One can graph the equation and find that the vertex is at (1,11), below the 12. It cannot reach 12 meters.
[One may also differentiate the equation and set it equal to zero (the point at which the slope of the parabola is zero, which will be at the vertex as it begins downward)].
-4 = u - 7 solve for u
Answer:
u = 3
Step-by-step explanation:
-4 = 3 - 7
Use the graph and the translation (x,y) (x+1,y+4) to answer parts a and b below
Answer:
Use the translation formula to determine the new points.
A' → ( 5 + 4, -8 + 2) = ( 9, -6 )
B' → ( 1 + 4, -1 +2) = ( 5, -1 )
C' → ( -7 + 4, -3 + 2 ) = ( 3, -1 )
A' = (9, -6)
B' = (5, 1)
C' = (-3, -1)
7/8 ÷3/4
pls help me past my tst
Answer:
[tex]\cfrac{7}{6}[/tex]
Step-by-step explanation:
[tex]\cfrac{7}{8} \div \cfrac{3}{4}[/tex]
Divide 7/8 by 3/4 by multiplying 7/8 by the reciprocal of 3/4:
[tex]\cfrac{7}{8}\times[/tex] [tex]\dbinom{4}{3}[/tex]
Now, multiply 7/8 times 4/3 by multiplying numerator times numerator and denominator times denominator:
[tex]\cfrac{7\times 4}{8\times 3}[/tex]
Do multiplication in fraction: [tex]\cfrac{7\times 4}{8\times 3}[/tex]
[tex]\cfrac{28}{24}[/tex]
Reduce fraction [tex]\frac{28}{24}[/tex] to lowest terms by extracting and canceling 4 out:
[tex]\cfrac{7}{6}[/tex] [tex]\checkmark[/tex]
___________________________
guys…..am i hot?????
Answer:
just btw there is no pic lol
Step-by-step explanation:
round to the nearest tenth 2.380952381
Answer:
2.4
Step-by-step explanation:
2.380952381 < 2.4
the decimal digits all round up to the next tenth