Answers
Answer:
The radius is 20 units.
Step-by-step explanation:
(r)^2 + 21^2 = (r+9)^2
r^2 + 441 = r^2 + 18r + 81
360 - 18r = 0
360 = 18r
20 = r
Related Questions
15 points!
Solve n = 2xy-1/zy for x
Answers
Ronald saves 10.00 to buy a new book. The book original price was 15 but it was on sale for 35% off with a 6% sales tax. Does he have enough money to buy the book Explain.
PLEASE DONT SAY HERE IS THE LINK OR FILE
Answers
The book is $10. Minus the 35% discount ($10X0.35=$3.50). So the subtotal is $10-$3.50=$6.50.
Tax is 6%. So 0.06X$6.50=$0.39
The total including tax is $6.50+$0.39=$6.89
Sophie Ruth is eating a 50-gram chocolate bar which contains 30% cocoa. How many grams of cocoa is in the chocolate bar?
Answers
Answer:
15 grams of cocoa.
Step-by-step explanation:
By finding the product of 50 and 0.3 or 30%, you could find that the chocolate bar contains 15 grams of cocoa.
Complete the table for the given rule.
Rule: y = 52
Answers
~Answer~
Substitute your numbers:
y = 5x
For the first one, y equals 5, so substitute 5 for y.
So, 5 = 5x.
What multiplied by 5 gives 5? The answer is 1.
So, the first one is 1.
Do the same for all the others.
So, 4 = 5x.
4 = 5(4/5)
As a decimal that equals 0.8.
For the last one, I can't tell if that is saying 2 or .2 so I'll do both.
for 2, you will do 2 = 5x and for .2, you will do .2 or 0.2 = 5x.
For 2, it would be 2/5 or 0.4.
For .2 or 0.2, it would be 0.04.
So,
x y
1 5
4/5 or 0.8 4
0.4 if it is 2 and 0.04 if it is 0.2. 2
(looking back, I'm pretty sure it was just 2 and not .2)
I hope this is what u were looking for, if not I'm so sorry for a useless answer. I wasn't completely sure whether I was doing it right since I haven't done these types of math problems in some time.
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Which of the following is a solution to the equation2/3 x + 16 = -14?
Answers
Answer:
x= -45
Step-by-step explanation:
43.5% of this skeleton's body is his mermaid tail.
Write the percent as a decimal.
Type a number
Answers
Nick has an album that holds 700 compact discs. Each page of the album holds 7 compact discs. If 69% of the album is empty, how many pages are filled with compact discs?
Answers
Answer:
41
Step-by-step explanation:
each page holds 7 discs. the alb holds 700 discs. that means there are 100 pages. 69% of the pages are empty so therefore 41 pages are filled.
Can someone help me with this ?!
If p(x)=x^2+x+1 and Q(x)=5x^2-1, find the following
1. Q(4)
2.p(-4)
3.p(1/2)
Answers
Answer: 1. 79
2. 13
3. 7/4
Step-by-step explanation:
Q(x)=5x^2-1
Q(4)=5(4)^2-1
=5(16)-1
=80-1
Q(4) = 79
p(x)=x^2+x+1
p(-4)=(-4)^2+(-4)+1
=16-4+1
p(-4) =13
p(x)=x^2+x+1
p(1/2)=(1/2)^2+(1/2)+1
=1/4+1/2+1
2+4+8/9
=14/8
p(1/2) = 7/4
LCM of 4, 6, 10, and 12
Answers
Answer:
360 is the LCM of 4,6,10 and 12
help please i will mark brainliest
Answers
Answer:
The answer is 8.66054037 as a decimal. It's asking for a root though.
Step-by-step explanation:
Arline's in Aplus bar always the same distance apart and they never me
Answers
Answer:
Step-by-step explanation:
sorry cannot help you
The high temperatures for the last seven days are: High Temperatures: 81, 78, 83, 89, 80, 87, 78
Find the MODE of the temperatures.
Answers
Answer: 78
Step-by-step explanation:
The mode is the number that appears the most number of times. In this case the number 78 appears twice unlike the other numbers that only appear once. Hence, 78 is the mode :)
Answer:
78
Step-by-step explanation:
The mode is the value that appears most often in a set of data. The mode of a discrete probability distribution is the value x at which its probability mass function takes its maximum value. In other words, it is the value that is most likely to be sampled.
Help please no links or I’ll report
Answers
Answer:
8x+16
Step-by-step explanation:
i used an app and its never wrong
Answer:
I hate the links too so just look up that exact question and youll prolly get the right answer
I think the answer it gave was 8
Please answer fast!!!!!
Answers
Answer: the answer is
b. Triangle
Please help link=report it worth 15 points and you’ll get brainiest if it right
Answers
Answer:
d) none of these lines fit the data
Answer:
This has to be D - None of the lines fit the data
B > data at the end
A > data at the beginning
C doesn't really match at all.
[tex]\mathtt{: )}[/tex]
It costs $3.95 to print a 12 in. by 16 in. color page. A friend needs to print a poster that is twice as long and twice as wide. At this rate, how much would he expect
to pay for the poster?
Answers
Answer:
$7.90
Step-by-step explanation:
Its is double both so u double $3.95
y=2x+3 y=4x+7 solve by elimination
Answers
Answer:
[tex]\displaystyle [-2, -1][/tex]
Step-by-step explanation:
To use the Elimination method, you must get rid of one pair of variables, so that one side is set to zero. So, in this case, we must get rid of [tex]\displaystyle x,[/tex]therefore we will split the second equation in negative half :
[tex]\displaystyle \left \{ {{y = 2x + 3} \atop {-\frac{1}{2}[y = 4x + 7]}} \right. \\ \\ \\ \left \{ {{y = 2x + 3} \atop {-\frac{1}{2}y = -2x - 3\frac{1}{2}}} \right. \\ \\ \frac{1}{2}y = -\frac{1}{2}; -1 = y, -2 = x \\ \\ \\ \boxed{[-2, -1]}[/tex]
I am joyous to assist you at any time.
Which statement is true about the equation
It has no solution.
It has one solution
It has two solutions.
It has infinitely many solutions.
Answers
Answer:
it has one solution which is 4
Answer:
hope this helps you......
If m = 100 what is the value of q?
q = 21.344 m
A. 213.44
B. 2,134.4
C. 21,344
D. 213,440
Answers
Answer:
The Answer is gonna be C. 21,344
Answer:
B) 2134.4
hope it helps.....
Can the probability of an event be greater than 1
Answers
helpp. Pleasee need answerr
Answers
Answer:
This probaly sounds a little confusing
Step-by-step explanation:
1 day = 10 laps
1 lap = 400 meters
1 km = 1000 meters
12 km = ? days
We can use this information to find out a lot that we don't know.
HOW MANY METERS PER DAY??
In order to find the number of meters in a day, we think, "She ran 400 meters 10 times... 400 times 10... that's 4000 meters in one day."
1 day = 4000 meters (10 x 400 meters)
HOW MANY KILOMETERS PER DAY?
In order to find the number of km in a day, we can think, "One thousand is a kilo. There are 4 'one thousand's in 4000. Kali ran 4 kilometers (literally 4 thousand meters) per day.
1 day = 4 km (4000 m / 1000)
From here you can solve simply by thinking "How many 4km does it take to get to 12km?"
4 x ? = 12
? = 12 / 4
? = 3
PLZZ HELP Me ASAP!!!!
Answers
Answer:
see explanation
Step-by-step explanation:
(a)
The area is calculated as length × breadth
area = 2x(2x + 6) ← distribute
= 4x² + 12x
(b)
area = x(x + 4) ← distribute
= x² + 4x
(c)
shaded area = 4x² + 12x - (x² + 4x)
= 4x² + 12x - x² - 4x ← collect like terms
= 3x² + 8x
in the diagram, PQRS is a parallelogram. QRT is a straight line. Based on the diagram, state the values of x,y and z.
Answers
Answer:
Step-by-step explanation:
John is looking for an apartment in the city. He has to make decisions about these choices.
* A ground floor (G) apartment or one that is not on the ground floor (N)
* An exterior entrance (E) or an interior entrance (I)
* To buy the apartment (B) or to rent it (R)
If John selects an apartment that is not on the ground floor (N), he can only choose an interior entrance (I). Which tree diagram BEST represents his choices?
Group of answer choices
I will give brainllents
Answers
Answer:
E
Step-by-step explanation:
E
Please help, Describe two methods that can be used to find the area of the composite figure.
Answers
Area of the composite figure can be find by using additive areas method and subtractive areas method
What is Composite figure?Composite geometric figures are made from two or more geometric figures. The composite figure below is made from parts of a rectangle and a circle
Since, Area is the quantity that expresses the extent of a region on the plane or on a curved surface.
Area of the composite figure can be find by using two methods,
Additive areas method and Subtractive areas method
In Addictive areas method
Break the composite shape into basic shapes
Find the area of the each basic shapes
Add all the areas of basic shapes together
In Subtractive areas method
Break the composite shape into basic shapes. That shape maybe larger than the composite shapes.
Find the area of the each basic shapes
Area of the composite shape will be the difference between the area of the larger shape.
Hence, the area of the composite figure can be find by using additive areas method and subtractive areas method
Learn more about Composite figure here;
brainly.com/question/16193772
#SPJ2
How do I solve this arithmetic sequence?
Answers
Answer:
The 16ᵗʰ term of this sequence is 82
Step-by-step explanation:
Here,
First Term = a₁ = 9
Common Difference = (d) = 2
Now, For 16ᵗʰ term, n = 16
aₙ = a + (n - 1)d
a₁₆ = 7 + (16 - 1) × 2
a₁₆ = 7 + 15 × 5
a₁₆ = 7 + 75
a₁₆ = 82
Thus, The 16ᵗʰ term of this sequence is 82
-TheUnknownScientist
please dont guess<3!!!
Answers
Answer:
I'm sorry I wont guess, I dont know
A box has a surface area of 450 cm². Its length and width are 6 and 8 respectively. What is its height?
Answers
Answer:
9.4 cm
Step-by-step explanation:
Given: Box; Length = 6 cm, Width = 8 cm, Surface area = 450 cm²
To Find: Height
Solution:
Divide the volume by the product of the length and width to calculate the height of a rectangular object.
6 × 8 = 48
450 ÷ 48 = 9.4
For this box, the rectangular object has a length of 6 cm, a width of 8 cm, and a volume of 450 cm². The product of 6 and 8 is 48, and 450 divided by 48 results in 9.4.
The height of the object is 9.4cm.
What are the area and the circumference of the circle at the right?
Answers
Answer:
Step-by-step explanation:
The length of a skateboard is about 4 times its width. The length of Mika’s skateboard is 79 cm.
Write an equation to model this situation.
b) What is the width of Mika’s skateboard?
Answers
Answer:
About 20 - 19.75
Step-by-step explanation:
Answer:
19.75 cm
Step-by-step explanation:
Since l=4w, plug in 79 for l.
79=4w
79/4=19.75
w=19.75