Given:
The equation is:
[tex](2x+1)(x2)=0[/tex]
To find:
The values of a, b and b from the standard form.
Solution:
The standard form of a quadratic equation is:
[tex]ax^2+bx+c=0[/tex] ....(i)
We have,
[tex](2x+1)(x2)=0[/tex]
In can be rewritten as
[tex]2x(x)+(2x)(2)+(1)(x)+(1)(2)=0[/tex]
[tex]2x^24x+x2=0[/tex]
[tex]2x^23x2=0[/tex] ...(ii)
On comparing (i) and (ii), we get
[tex]a=2,b=3,c=2[/tex]
Therefore, the correct option is C.
help help help help help
A=√18√8+√50
Write A in the form m√2 where m is an integer
Answer:
6√2
Stepbystep explanation:
A=3√22√2+5√2
A=6√2
Answer:
6√2
Stepbystep explanation:
A=√18√8+√50 = √9√2  √4√2 + √2√25, or A = (√2)(3  2 + 5) = 6√2
someone please help me
Answer:
A. 20ft
Stepbystep explanation:
Answer:
d. 98.5
Stepbystep explanation:
Triangles:
5 x 4 = 20/2 = 10
Circle:
5² x 3.14 = 78.5
Add both of them 98.5
For a beverage, Lisa mixes cups of lemonade to cups of iced tea in a ratio of 2:5. Which of the following best describes the amount of lemonade to iced tea?
For every 2 cups of lemonade, there are 3 cups of iced tea.
For every 2 cups of lemonade, there are 5 cups of iced tea.
For every 3 cups of lemonade, there are 2 cups of iced tea.
For every 5 cups of lemonade, there are 2 cups of iced tea.
Answer:
Answer 2 would be true.
Stepbystep explanation:
Because our ratio is 2:5 (or 2 to 5 for easier understanding) we know that every 2 cups we use of lemonade, we pair with 5 cups of tea.
Answer:
The answer is B
Stepbystep explanation:
For every 2 cups of lemonade, there are 5 cups of iced tea.
The sophomore class needs a combined total of 216 medium and large tshirts for field day. The number of medium tshirts needed is three times the number of large tshirts needed. Based on this information, would it be reasonable for the sophomore class to order 72 large tshirts and 144 medium tshirts? A. No, because the number of medium tshirts is not 3 times the number of large tshirts B. No, because the number of large tshirts is not 3 times the number of medium tshirts C. Yes, because the total number of tshirts is 216 D. Yes, because the number of large tshirts is of the total number of tshirts
PLZ HELP NEED BY TODAY!!
Stepbystep explanation:
Given 5x + 8 = 118 (vertically opposite angles)
[tex]5x + 8 = 118 \\ 5x = 118  8 \\ 5x = 110 \\ x = 110 \div 5 \\ = 22[/tex]
Find x. PQR = MNR ...............
Answer:
x = 55
Stepbystep explanation:
<QRP = <NRM because of vertical angles
To find <NRM:
x + 35 + 90 = 180
x + 125 = 180
x = 55
<NRM = 55
<QRP or x = 55
find the unit price to the nearest tenth of one cent. 12ounce can of cola for 60 cents
Answer:
1 ounce is 0.05
Stepbystep explanation:
Which of these is an example of due process?
a search without good reason
a prejudiced jury
a cruel punishment
a fair trial
Answer:
A fair trial.
Answer:
Stepbystep explanation: a search without good reason
The cost of renting a car is represented by C=8.5h+25.5, where C is the cost in dollars and h is the number of hours rented.
If Peter rents a car and pays a cost of $85, how many hours did he rent it for?
find the missing side lenght of the triangle below
Answer:
12
Stepbystep explanation:
5^2 + x^2 = 13^2
x = 12
Answer:
12
Stepbystep explanation:
Use Pythagorean theorem
[tex]a^2 +b^2 =c^2[/tex]
c= always hypotenuse/ longest side/ side across from right angle = 13
a= 5
[tex]5^2+b^2=13^2[/tex]
[tex]25+b^2=169[/tex]
Subtract 25 from 169
[tex]b^2= 144[/tex]
Square root both sides
b= 12

it's also a special triangle known as a 5, 12, 13 triangle
Ana spends 0.45 of her homework time reading. What is 0.45 as a percent? Explain.
Answer:
45%
Stepbystep explanation:
Please help me do this
Answer:
∠ U = 60°
Stepbystep explanation:
The tangent tangent angle U is half the difference of its intercepted arcs
minor arc VT = 120° , then
major arc VT = 360°  120° = 240°
Then
∠ U = [tex]\frac{1}{2}[/tex] (240  120)° = [tex]\frac{1}{2}[/tex] × 120° = 60°
What is the height of the cylinder in the diagram? Round your answer to the nearest whole number.
Answer:
8 is the height
Stepbystep explanation:
please mark this answer as brainlest
Which is a number that can be written as a fraction in the form ?
Rational Numbers: Any number that can be written in fraction form is a rational number. This includes integers, terminating decimals, and repeating decimals as well as fractions. An integer can be written as a fraction simply by giving it a denominator of one, so any integer is a rational number.
Hope this helps!
Multiply. Write your answer as a fraction in simplest form.
−1(45)=
asap
Answer:
9/20
put 45 over 100, then divide them both by 5.
HELLO!! I NEED HELP! Please show full Solutions. I will mark brainliest for the best answer. Thank you and god bless.

Finding slope given two points on the line
Find the slope of the line passing through the points (4, 6) and (3, 8).
Answer:
The slope is 2
Stepbystep explanation:
Hi there!
We are given the points (4, 6) and (3, 8)
We want to find the slope (m) of the line that passes through these points
We can use the formula [tex]\frac{y_2y_1}{x_2x_1}[/tex] to calculate the slope, where [tex](x_1, y_1)[/tex] and [tex](x_2, y_2)[/tex] are points
We have everything we need to find the slope, but let's label the values of the points to avoid confusion and mistakes.
[tex]x_1=4\\y_1=6\\x_2=3\\y_2=8[/tex]
Now substitute into the formula
m=[tex]\frac{y_2y_1}{x_2x_1}[/tex]
m=[tex]\frac{86}{34}[/tex]
Simplify:
m=[tex]\frac{86}{3+4}[/tex]
m=[tex]\frac{14}{7}[/tex]
Divide
m = 2
The slope of the line is 2
Hope this helps!
See more on calculating slope from 2 points here: https://brainly.com/question/26738734
Reese is selling lemonade at the parade. He gets to keep 50% of the money he collects. A large lemonade is
$5.00 and a small lemonade is $2.00.
The expression represents 50%
of the money he collects
.0.50(5l + 2s)
Use the Distributive Property to expand the expression.
Answer:
.5(5I)+.5(2s)
Stepbystep explanation:
Jen collects stamps. The first month she added 25 stamps. Six months later, she doubled in number to a total of 98. How many stamps did she have to start her collection?
Answer:
49
Stepbystep explanation:
............................
Answer:
Thaey are proportional
Stepbystep explanation:
Mio calculated the volume in this way : V = 12 • 5
Explain what the 12 and 5 represent in the figure.
Can anyone help me on this question???
Answer:
Stepbystep explanation:
Divide.
389.5÷104
plz i need help
Answer:
The answer is 3.74519230769
if a x b = a/b  1, then 7 x 28
Answer:
Do you have answer choices. guess
Stepbystep explanation:
1.28 20 help me plsss
If you mea. 1 . 28  20 then the answer is going to be
[tex]1.  48[/tex]
but if you mean 28 20 the the answer is going to be
[tex]  48[/tex]
angle A and angle B are complementary angles. If m angle A = (6x – 8)° and m
angle B = (5x + 21)°, then find the measure of angle B.
Answer: B = 56 degrees
Stepbystep explanation: Complementary angles add up 90 degrees. So we will set both of the equations equal to 90 degrees and then solve from there.
6x+8+5x+21=90
1. Simplify 5x + 6x and 21  8
11x+13=90
2. Subtract 13 from both sides.
11x=9013
3. Simplify 9013 to 77.
11x=77
4. Divide both sides by 11.
x = 77/11
5. Simplify 77/11 to 7
x=7
Now we have to take the value of x and substitute it back into B = (5x+21)
1. Substitute
B = (5(7)+21)
B = 35 +21
B = 56
HOPE THIS HELPS :)
What is the value of x?
Answer:
x = 64
Stepbystep explanation:
2x = 128
x = 64
Answer:
hi
Stepbystep explanation:
i think so
128⁰+2x⁰=180⁰
2x⁰=180⁰128⁰
2x⁰=52⁰
x=52/2
x=26⁰
hope it helps
have a nice day
Please answer this and my recent questions if you can
Answer:
x is 15
Stepbystep explanation:
b is 75 hope this helps you
Solve for x. round your answer to the nearest tenth
Trigonometry
Answer:
[tex]\displaystyle x \approx 16.5[/tex]
General Formulas and Concepts:
PreAlgebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of EqualityTrigonometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] tanθ = opposite over adjacentStepbystep explanation:
Step 1: Define
Angle θ = 70°
Opposite Leg = x
Adjacent Leg = 6
Step 2: Solve for x
Substitute in variables [tangent]: [tex]\displaystyle tan70^\circ = \frac{x}{6}[/tex][Multiplication Property of Equality] Isolate x: [tex]\displaystyle 6tan70^\circ = x[/tex]Rewrite: [tex]\displaystyle x = 6tan70^\circ[/tex]Evaluate: [tex]\displaystyle x = 16.4849[/tex]Round: [tex]\displaystyle x \approx 16.5[/tex]please help me i don’t know te anser
A=b h................
Answer:
A = 20
Stepbystep explanation:
A = bh
b = 4
h = 5
4 × 5 = 20