Answer:
x = - 4
Step-by-step explanation:
Given
- x² - 8x - 16 = 0 ( multiply through by - 1 to clear the leading negative )
x² + 8x + 16 = 0 ← this is a perfect square
(x + 4)² = 0 ( take the square root of both sides )
x + 4 = 0 ( subtract 4 from both sides )
x = - 4
A phone company offers two monthly charge plans. In plan a there is no monthly fee, but the customer pays 8 cents per minute of use. In Plan B the customer pays a monthly fee of $2.40 and then an additional 7 cents per minute of use. For what amount of monthly phone use will plan a cost more than plan b? Use m for the number of minutes of phone use in a month and solve your inequality for
Answer:
[tex]m>2.40[/tex]
Step-by-step explanation:
Let m denotes the number of minutes of phone use in a month.
In plan a there is no monthly fee, but the customer pays 8 cents per minute of use.
Total cost of plan a = [tex]8m[/tex]
In Plan B the customer pays a monthly fee of $2.40 and then an additional 7 cents per minute of use.
Total cost of plan b = [tex]2.40+7m[/tex]
To find amount of monthly phone use for which plan a cost more than plan b, solve the inequality [tex]8m>2.40+7m[/tex].
[tex]8m>2.40+7m\\8m-7m>2.40\\m>2.40[/tex]
Solve the quadratic equation given below by completing the square.
Round your answer to the nearest hundredth.
If there is more than one solution, separate them with commas.
x^2 - 2x - 12 = 0
explain how using fraction strips with like denominators makes it possible to add fractions with unlike denominators.
Fraction strips uses (least) common denominators, thus splitting big fraction into sum with like denominators and thus making addition possible.
Fraction strips require three major steps.
1. Firstly convert the problem with modelling as fraction strips.
2. Find the common denominator which should be least of all.
3. Now calculate the sum on new converted fractions.
For example:
[tex]\begin{aligned}\dfrac{1}{2} + \dfrac{3}{4} &= \dfrac{1}{4} + \dfrac{1}{4} + \dfrac{3}{4}\\&= \dfrac{2}{4} + \dfrac{3}{4}\\&= \dfrac{5}{4} = \: Ans.\end{aligned}[/tex]
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Can anyone please help me
Answer:
y = 8 + 12x
Step-by-step explanation:
Step 1: Write equation
3x - 1/4y = -2
Step 2: Solve for y
Subtract 3x on both sides: -1/4y = -2 - 3xMultiply both sides by -4: y = -4(-2 - 3x)Distribute -4: y = 8 + 12xPLEASE HELP!! I'M VERY CONFUSED
Asap
I need help please
Answer:
c
Step-by-step explanation:
Please Solve
3/5 (2m-10)=2/3m+10
Answer:
m = 30
Step-by-step explanation:
3/5 (2m-10)=2/3m+10
Distribute
6/5 m - 6 = 2/3m +10
Subtract 2/3 m from each side
6/5 m - 2/3 m - 6 = 2/3m -2/3m +10
6/5 m -2/3m - 6 = 10
Add 6 to each side
6/5 m -2/3m - 6+6 = 10+6
6/5m -2/3m = 16
Get a common denominator of 15
18/15 m - 10/15 m =16
8/15 m = 16
Multiply each side by 15/8
15/8 *8/15 m = 16*15/8
m = 30
The Chicago Cubs attendance is approximately 42,000 fans per game what will be their total attendance after 10 games?
Answer:
420,000
Step-by-step explanation:
Write equations of the horizontal and vertical lines that pass through (−5,−4).
Horizontal-
Vertical-
how can I put the problem into a sentence please help !
The perimeter of a child's rectangular sandbox is 18 feet. Part A:if the length of the sandbox is one foot longer than the width, write an equation that can find the length and width of the sandbox. Part B:using your equation from part a, find the dimensions of the Childs sandbox. Show your work
Answer:
Length = 5 feet
Width = 4 feet
Step-by-step explanation:
Perimeter of the sandbox = 18 feet
Perimeter of a rectangle = 2(length + width)
the length of the sandbox is one foot longer than the width
Let
Width = x
length = x + 1
Perimeter of a rectangle = 2(length + width)
18 = 2{(x+1) + x}
18 = 2{x + 1 + x)
18 = 2(2x + 1)
18 = 4x + 2
4x = 18 - 2
4x = 16
Divide both sides by 4
x = 16/4
= 4
Width = x = 4 feet
length = x + 1
= 4 + 1
= 5 feet
What is the sum of the zeros of the equation (m-4)(3m-2)=0
Answer:
3m^2-14m-8
Step-by-step explanation:
(m-4)(3m-2)=?
m(3m-2) = 3m^2-2m
-4(3m-2) = -12m-8
3m^2-2m-12m-8
3m^2-14m-8
PLEASE HELP ME ASAP! ILL GIVE BRAINLEST
Answer:6(-4)
Step-by-step explanation:
Answer:
4(-6), 6(-4), 12(-2)
Step-by-step explanation:
Hi there!
A negative number times a positive number is a negative number. So, since -4 x 6 has one negative number, you can think of it as 4 x 6 and then add a minus sign after multiplying, so -4 x 6 is -24.
In multiplication, no matter which way the equation goes, the answer will always be the same ( 5 x 3 is the same as 3 x 5). Therefore, we are looking for another equation that will also equal -24.
4(-6) is the same because it is still one number that is a negative, and it still equals -24.
6(-4) is the same as well, it's just we're putting the parentheses around the -4 this time.
12 x 2 is 24, so 12(-2) is negative 24 (-24)
I hope this explanation helped you! I'd appreciate if you gave me Brainliest, rated my answer and gave it a Thanks! Have a great day!
I will mark BRAINLYLIST if correct plzzzz helppppp
Answer:
107
Step-by-step explanation:
it looks like a right angle
Answer:
The answer is 107 degrees.
Step-by-step explanation:
The sum of all the angle of a triangle must equal 180 degrees. That being said if you grab 180 and subract 44 and 29 from it you get 107 degrees. 107+44+29=180. If this did not equal 180 the answer would be wrong but since it does it is right.
The dimension of a laying block is 6m ×4m×2m .find the total surface area of the block
See attachment for math work and answer.
For the functions f left parenthesis x right parenthesis equals 6 minus x squared and g left parenthesis x right parenthesis equals x squared plus 4 x minus 12, find fplusg, fminusg, fg, and StartFraction f Over g EndFraction . Determine the domain for each function.
Answer:
Step-by-step explanation:
Given the functions
F(x) = 6-x²
G(x) = x²+4x-12
A) we are to find F(x)+g(x)
F(x)+G(x) = 6-x²+x²+4x-12
F(x)+G(x) = 6+0+4x-12
F(x)+G(x) = 4x+6-12
F(x)+G(x) = 4x-6
The domain of the function is the values of x for which the expression exists. The expression exists on all real interval i.e xER
F(x)-g(x) = 6-x²-(x²+4x-12)
F(x)-g(x) = 6-x²-x²-4x+12
F(x)-g(x) = 6-2x²+4x+12
F(x)-g(x) = -2x²+4x+6
The domain of the function is the values of x for which the expression exists. The expression exists on all real interval i.e xER
3) F(x)/G(x)
= 6-x²/x²+4x-12
The domain of the function is the values of x for which the expression exists. The expression exists on all real interval i.e xER
value of 5/6 divided by 3/4?
Answer:
1 1/9
Step-by-step explanation:
14, What is the value of the expre
3(20 – x) =
Your answer
Answer:
= −3x + 60
Step-by-step explanation:
3(20−x)
=(3)(20+ −x)
=(3)(20) + (3)(−x)
=60 − 3x
= −3x + 60
Sorry, I'm Late.
Hope This Helps!
Please Mark Brainliest When You Can!
Please help ill give brainlist
Answer:
c. m∠2 = m∠5
Step-by-step explanation:
We can check 1 by 1 and find the false one.
For answer A, measures 2 and 4 are vertical angles, which means they are equal, so that's not false.
For answer b, measures 4 and 8 are corresponding angles, since X and Y are parallel, so that's also not false.
For answer c, measures 2 and 5 are supplementary to each other, and since the transversal is not perpendicular to X nor Y, they are not equal, therefore, this is false, making that the answer.
For answer d, measure 2 and 6 are corresponding angles, so that's also not false.
Therefore, the answer must be c.
what is 342+8837+377+3893+39845
Answer:
53,294
Step-by-step explanation:
ASAP ASAP PLEASEEEEE! WILL GIVE BRAINLIST
Answer:
A: -6r+6
Step-by-step explanation:
[tex]8-\left(6r+2\right)[/tex]
[tex]-(6r+2)=-6r+2[/tex]
[tex]=8-6r-2[/tex]
[tex]8-6r-2=-6r+6[/tex]
[tex]=-6r+6[/tex]
Explain how to multiply two numbers with different signs.
Helpppp
Answer:
number 1. 6x6, number 2. 6*6, number 3. 6.6
Step-by-step explanation:
Find the sum of the multiples of 9 from 1 to 300
Answer:
can you be more specific please.
Step-by-step explanation:
Correct answer will be awarded with brainliest answer
A rectangle in Quaderant 1 is transformed to produce a congruent rectangle in Quaderent 2. Which could describe the transformation.
Answer:
A translation
Step-by-step explanation:
The rectangle doesn't change, it just scoots over.
19. Mrs. Tyner tutors to earn additional money. For each person she tutors, she charges $15 for the first hour
then $10 for each additional hour. Ms. Starling was paid a total of $35 last Saturday. Which equation can be
used to determine h, the amount of hours Mrs. Tyner tutored on Saturday.
{(3, 2), (5, – 1), (6, 7), (3, – 8), (4, 2)} Which set of information is true about the relation shown?
Answer: the second function
Step-by-step explanation:
Which equation represents the graphed function?
A. y = -2x + 3
B. y = 2x + 3
C. y=1/2x+3
D. y=-1/2x+3
Answer:
y= - 2x+3
Step-by-step explanation:
3 is our start possition
the number before the x is the rise over run
so we would "rise" (vertical) 2 but since it has a - it will be going the oppisite direction then our run would be 1 going over horizenly 1 block
5x+18=7x-4 With Justify Steps
Answer:
x=11
Step-by-step explanation:
Let's solve your equation step-by-step.
Step 1: Subtract 7x from both sides.
Step 2: Subtract 18 from both sides.
Step 3: Divide both sides by -2.
therefore x=11
Answer:
x = 11
Step-by-step explanation:
5x+18=7x-4
+4 +4
5x + 22 = 7x
-5x -5x
22 = 2x
/2 /2
x = 11
Isolate the variable by dividing each side by factors that don't contain the variable.
Use the drop-down menus to complete the paragraph
proof showing that alternate interior angles are
congruent.
We know that lines a and b are parallel and that line c
is a transversal because that is given. We can tell that
angles 2 and 5 are congruent because
V angles are congruent. Angles 5 and
7 are congruent because
angles by
parallel lines cut by a transversal are congruent.
Therefore, angles 2 and 7 are congruent based on the
Answer:
vertical
corresponding
transitive property
Step-by-step explanation:
hope this helps you :)