Answer:
Step-by-step explanation:
Simplify this problem by dividing all three terms by 2:
x^2 + 20 = -4x
Rewrite this in standard form:
x^2 + 4x + 20
Take the coefficient of the x term and divide it by 2: 4/2 = 2
Square this result: 2^2 = 4
Between x^2 + 4x and 20 add this 4, then subtract it:
x^2 + 4x + 4 - 4
Rewrite x^2 + 4x + 4 as the square of a binomial:
(x + 2)^2 - 4, or (x + 2)^2 = 4
Elena and Jada were racing on their bikes. Elena started 15 meters ahead of Jada. Elena biked at a rate of 20 meters per second. Jada biked ya a rate of 22 meters per second. Let x represent time in seconds and y represent distance in meters. What equation could be used to solve this system using the substitution method?
Answer:
Step-by-step explanation: 15 x 20 and get your answer then, add whatever you got with 22 last, see what your answer was and put your answer with either the y axis or x axis.
please help me no uncool answers
Answer:
[tex]a_{n} =n-4[/tex]
Step-by-step explanation:
With every number following, you just keep subtracting 4 from the previous number
What is 9.85km to 5000m as a ratio in it's lowest terms
Answer:
197:100
Step-by-step explanation:
9.85km in m =9850m
9850:5000
÷10 ÷10
985:500
÷5 ÷5
197:100
as we can’t simplify any more, this must be the lowest term.
truth or false every fraction has a limited number of equivalent frections .
Answer:
False
Step-by-step explanation:
pls mark as brainliest
Hope it his helps
WILL GIVE BRAINLIEST!!!
3. Mary Cunningham offered $456,500 for a home that had been
priced at $569,500. The seller agreed to the offer. A bank is willing
to finance the purchase if she can make a down payment of 20%.
a. What is the amount of the down payment?
b. What is the amount of the mortgage loan?
a. To find the amount of the down payment, we need to multiply the price of the home by the percentage of the down payment required.
How would one define compounding?
Compounding is the method through which interest is added to both the principle balance already in place and the interest that has already been paid. Thus, compounding can be thought of as interest on interest, with the result that returns on interest are magnified over time, or the so-called "magic of compounding."
The price of the home is $456,500 and the down payment percentage is 20%, so:
Down payment = $456,500 x 20% = $456,500 x 0.20 = $91,300
b. To find the amount of the mortgage loan, we can subtract the down payment from the price of the home.
The price of the home is $456,500 and the down payment is $91,300 so:
Mortgage loan = $456,500 - $91,300 = $365,200
Therefore, the amount of the down payment is $91,300 and the amount of the mortgage loan is $365,200.
Learn more about compounding
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yall i need help please!!
Answer:
0+2=2
Step-by-step explanation:
Identity property of addition: The sum of 0 and any number is that number.
So 0+2=2
A Math Question I need done
Monica found the volume of the prism below using the expression .
What errors did Monica make? Check all that apply.
She should have counted only 2 unit cubes instead of 4.
She should have counted 8 one-third cubes instead of only 4.
She should have found the total value of the one-third cubes by multiplying by instead of by .
Each fractional cube is worth instead of the that she used.
She cannot stack more than one layer of fractional cubes in a prism.
Answer:
See Explanation
Step-by-step explanation:
The expression and the dimension of the prism are not given.
So, I will just give a general expression.
The volume of a prism is:
[tex]Volume = Length * Width * Height[/tex]
Assume that:
[tex]Length = 2[/tex]
[tex]Width = 2[/tex]
[tex]Height = 1\frac{2}{3}[/tex]
See attachment
Monica's expression should be:
[tex]Volume = 2 * 2 * 1\frac{2}{3}[/tex]
And the solution will be:
[tex]Volume = 2 * 2 * \frac{5}{3}[/tex]
[tex]Volume = \frac{20}{3}[/tex]
Answer:
b and c
Step-by-step explanation:
i took the test <3
does anybody have this? ill mark brainiest. (quiz)
Circumference of Circle :-
[tex] \sf \underline{\pink{\boxed{2\pi r}}}[/tex]
Value of π (pi) =
[tex] \sf \: { \frac{22}{7} } \: or \: 3.14[/tex]
Answer :-9) C = 2πr = 2 × 3.14 × 4
≈ 25.13274
10) C = 2πr = 2 × 3.14 × 7.2
≈ 45.23893
11) C = 2πr = 2 × 3.14 × 10
≈ 62.83185
12) C = 2πr = 2 × 3.14 × 3.6
≈ 22.61947
13) Given :-
Diameter : 8m
Radius = half of D = 4 cm
⇢C = 2πr = 2 × 3.14 × 4
≈ 25.13274
14) Radius = 6 cm
C = 2πr = 2 × 3.14 × 6
≈ 37.69911
15) C = 2πr = 2 × 3.14 × 7.1
≈ 44.61
16) C=2πr=2× 3.14 × 5.2
≈ 32.6
[tex]\rule{300px}{.7ex}[/tex]
[tex]{\huge{\underline{\small{\mathbb{\pink{HOPE \ THIS \ HELPED \ UH:)}}}}}}[/tex]
Plss finish fast the question is linked thank you for ur help
Answer: B. 2 2/5
Step-by-step explanation: Hope this help :D
2 1/6 ft
Step-by-step explanation:
This problem bothers on subtraction of fraction
Given data
Total length of rope 3 1/2 feet
Let's convert mixed fraction to proper fraction = 7/2ft
First piece of rope = 1 1/3ft
= 4/3ft
Hence the second piece of the rope is = 7/2-4/3= 21-8/6= 13/6
Second piece = 2 1/6 ft
Find the surface area of the right prism
Answer:
Ggggggggggggggggggggg!!!
Step-by-step explanation:
20 pts and brainlist if right!! 5 stars too!
Answer:
Corresponding Angles:
∠2 and ∠6
∠4 and ∠8
∠1 and ∠5
∠3 and ∠7
Vertical Angles:
∠2 and ∠3
∠1 and ∠4
∠5 and ∠8
∠6 and ∠7
Alt. Interior:
∠4 and ∠5
∠5 and ∠6
Alt. Exterior:
∠2 and∠7
∠1 and∠8
Step-by-step explanation:
This took me forever..
Classify the pair of angles. Then find the value of x
Answer:
The angles are acute and x should be 243. Not sure if that's what you are looking for but good luck!
Answer:
I need to know the choices in the blank box before I answer that part of the question.
Step-by-step explanation:
180-117=63
x=63
If one half life is the amount of time it takes for a radio active isotope to decay by a factor of 2, approximately which percent describes how much of the initial quantity of a substance would remain after 2-3 half lives?
A.0.25
B.0.20
C.0.75
D.0.50
Answer:
the answer for this question is option c
Find the value of x such that the data set has the given mean. 98,122,104,115,107,x,102 x=(Type an integer or a decimal.)
Answer:
x = 66
Step-by-step explanation:
For a set of N numbers:
{x₁, x₂, ..., xₙ}
The mean can be calculated as:
[tex]M = \frac{x_1 + x_2 + ...+ x_n}{N}[/tex]
In this case we have the data set:
{98, 122, 104, 115, 107, x}
And I assume that we want to have the mean = 102.
So we have a set of 6 numbers, the mean of this set will be:
[tex]M = \frac{98 +122+104+115+107+x}{6} = 102[/tex]
We need to solve this equation for x.
If we multiply both sides by 6, we get:
(98 + 122 + 104 + 115 + 107 + x) = 102*6 = 612
546 + x = 612
x = 612 - 546 = 66
x = 66
In space, what would be the amount of force required to keep a 2kg object moving at a constant speed of 8m/s?
Answer:
the amount of force is zero newton
Step-by-step explanation:
Given that
Mass of an object = 2kg
Constant speed of the object = 8m/s
We need to find out the amount of the force
As in the question it is mentioned that the speed is constant so there would be no change in the velocity due to this acceleration would be zero
Now following formula should be used to find out the force
Force = ma
As a = 0
f = 0
Therefore, the amount of force is zero newton
look that the picture PLSSSS HEELP IM IN A TEST I DID NOT STUDY FOR PLSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSSS
Answer:
1. a
2. d
3. c
4. d?
5. cant answer cause I cannot see the data
You have a square that has a perimeter of 24 feet. You need to purchase the logs for your garden. You can use one log for each side. How long will each log be? Round to tenths
Answer:
6 feet
Step-by-step explanation:
Given that,
The perimeter of the square, P = 24 feet
We need to find the side of the square.
The perimeter of a square is given by the formula as follows :
[tex]P=4a[/tex]
Where
a is the side length
So,
[tex]a=\dfrac{P}{4}\\\\a=\dfrac{24}{4}\\\\a=6\ feet[/tex]
So, the side of each log be 6 feet.
pls help need it ASAP will give brainlist
Answer:
BE = 3.5 m
Step-by-step explanation:
Δ ACB and Δ EDB are similar, so the ratios of corresponding sides are equal, that is
[tex]\frac{BE}{BA}[/tex] = [tex]\frac{BD}{BC}[/tex] , substitute values
[tex]\frac{BE}{21}[/tex] = [tex]\frac{3}{18}[/tex] ( cross- multiply )
18 BE = 63 ( divide both sides by 18 )
BE = 3.5
Bella brought stickers to give to 12 of her friends. Each friend received 4 stickers.
how many stickers did she bring to schoo
[tex] x \div 4 = 12[/tex]
Answer: The answer is x/4 = 12.
Step-by-step explanation: This is because in the problem it says "How many stickers did she bring to school" so you will have to divide x by 4 in order to get 12.
Question 1 (1 point)
What is the exact area of a circle with a radius of 3?
120
9n
6 6
31
Thanks!!!
Answer:
9π units²
Step-by-step explanation:
To obtain an exact answer, use π, not an approximation such as 3.14.
A = πr² is the appropriate formula.
Here,
A = (3)^2·π units², or 9π units²
Tom is playing football . He carries the ball 7 1/3 yards and then goes backwards 2 feet how far did Tom Cary the ball in feet after these two plays
Answer:
20 feet
Step-by-step explanation:
convert yard to foot
1 yard = 3 foot
7 1/3 x 3 = 22
22 -2 = 20 feet
One third of a number, decreased by 3/4 gives 1/3. What is the number?
Answer:
hmmmm
Step-by-step explanation:
Sal recorded the cost of his monthly home heating bill and the corresponding average
monthly temperature for the past 15 months. He displayed the information in a scatter
plot and used a graphing calculator program to find the least squares regression line
to fit the dat
Sal wants to use the least squares regression line to predict the cost of his heating bill
when the average monthly temperature is 40°F. Which statement is true?
Answer:
the answer is C
Step-by-step explanation:
Answer:
Bottom Left is the right answer
Step-by-step explanation:
Please answer this!! sorry if you keep seeing my questions I suck at math !!
Answer:
AB = 12
BC = 9
Step-by-step explanation:
x= -4
AB -4+16 = 12
BC -4+13 = 9
12+9 = 21
5. Write 2/3 and 3/4 as equivalent fractions using a common denominator
Answer:
awdsadaw
Step-by-step explanation:
awdasdaw
A cube has a surface area of 24. What's the volume?
a 48
b 12
c 16
d 8
Answer:
Step-by-step explanation:
The voloum is 8 cubic cm.
if the surface area is 24 the volume is 8.
A model of a volcano has a height of 12 in., and a diameter of 12 in.
What is the approximate volume of the model?
Use 3.14 to approximate pi, and express your final answer as a decimal.
Enter your answer as a decimal in the box.
Answer:
452.16 cm³
Step-by-step explanation:
I assume the shape of the volcano is a cone.
V = (1/3)πr²h
r = d/2 = 12 in./2 = 6 in.
V = (1/3)(3.14)(6 in.)²(12 in.)
V = 452.16 in.²
Answer:
Step-by-step explanation:
Radius r = 6 inches
Height h = 12 inches
volume of cone = πr²h/3 ≈ 3.14∙6²∙12 = 1,356.48 in³
look at the question is below answer plzzzz! and stalker stop stalking me!
my question is: people love your masks so much that now they want to get them in different shapes. They want circular masks now. How much fabric would you need to mask that has a radious of 4 cms?
Answer:
16π [tex]cm^2[/tex] will your answer!
Step-by-step explanation:
4 x 4 x π = 16π
also, who is stalking you?
Find the measures of interior angles. Find a and B.
Answer:
A = 68
B = 44
C = 68
Step-by-step explanation:
find x:
68 + x + x - 24 = 180
2x + 44 = 180
180 - 44 = 136
136 / 2 = 68
x = 68
_________________________
68 + 68 + 44 = 180