Answer:
6.5 feet
Step-by-step explanation:
the formula for the area is A=l*w l=length w=width
A=l*w
78=l*12
Divide both sides by 12
78/12=6.5
Use the Pythagorean theorem to find x, in simplest radical form
Answer:
[tex]4\sqrt{21}[/tex]
Step-by-step explanation:
Pythagorean theorem is [tex]a^{2} +b^{2} =c^{2}[/tex].
Which in this case:
'c' is hypotenuse. (hypotenuse = 20)
'a' and 'b' are the other sides. (a = x, b = 8)
[tex]a^{2} +b^{2}= c^{2}[/tex] [tex]x^{2} +8^{2} =20^{2}[/tex] [tex]x^{2} + 64 = 400[/tex] [tex]x^{2} = 336[/tex]Now we should just take square root from the both sides.
and the answer will be [tex]\sqrt{336}[/tex] or [tex]-\sqrt{336}[/tex], but a side of a triangle can not be a negative number! so the answer will be [tex]\sqrt{336}[/tex].
As you see [tex]\sqrt{336}[/tex] is not the simplest radical.
We can write [tex]\sqrt{336}[/tex] as [tex]\sqrt{16 * 21}[/tex].
And from the laws of radical we can write [tex]\sqrt{16*21}[/tex] as [tex]\sqrt{16} * \sqrt{21}[/tex].
[tex]\sqrt{16} * \sqrt{21} = \sqrt{16}\sqrt{21} = 4\sqrt{21}[/tex]
I hope it helps you. Please choose my answer as the brainliest.
Can someone help me with this I'm confused
Answer:
bro sorry I can't helpStep-by-step explanation:
follow me mark as brainleasta square has a perimeter of 72 units. if its length measures 3y and its width measures 2x, what is the area of the square
Answer:
324
Step-by-step explanation:
square has 4 sides.
perimeter adds all sides to make 72
72/4=18 units each side
length * width =area of square
square has all sides equal, so 3y and 2x are tricks to confuse. All sides are 18.
18*18= 324
Express 2700 as a product of prime numbers or find the prime factorization of 2700 leaving
your answer in index form or notation
Harper knows he is 50 yards from school. The map on his phone shows that the school is 34 inch from his current location.
How far is Harper from home, if the map shows the distance as 3 inches?
Answer:
Step-by-step explanation:
To solve this problem you must apply the proccedure shown below:
1. We know that 1 yard is 36 inches, therefore, 50 yards expressed in inches is:
(50)(36)=1800in
2. If he is 50 yards from school and the map shows that the school is 34 inches from his current location, when it shows 3 inches the real distance is:
(1800)(3in)/24in=158.82
3. If you can to express it in yards:
158.82/36=4.41yd
Therefore, the answer is: 158.82 inches or 4.41 yards.
IF YOU DONT KNOW THE QUESTION, PLEASE DONT ANSWER IT FOR THE PONIS. I REALLY NEED IT
Answer:
-3x^2-10x+6
Step-by-step explanation:
the first mistake would be writing the 4x^2 as positive when it's supposed to be negative. the 1 is also supposed to be positive. correct difference would be:
(x^2-10x+5)-(4x^2-1)
=(x^2-4x^2)-10x+5+1
=-3x^2-10x+6
Answer:
Mistake in step 2
Step-by-step explanation:
(x^2-10x+5)-(4x^2-1)
x^2-10x+5-4x^2+1
-3x^2-10x+6
-(3 x^2 + 10 x - 6)
There is a mistake in step 2 in the picture,
-(4x^2-1)
Here, -*- =+ and -*+=-, this is done incorrectly here,
PLS ANSWER THE FOLLOWING QUESTION
AND I'LL MARK U AS BRAINLIST
STEP BY STEP EXPLANATION NEEDED
Answer:
140+x+x = 180°(co-interior angle)
140+2x=180°
2x=180°-140°
2x = 40°
x = 40°/2
x = 20°
check:
140+20+20 = 180
180=180
seventeen is less than twice the sum of a number and three
Answer:
no it would be more
Step-by-step explanation:
3+3=6 so not 17 at all
Answer:
x > 17/2 - 3
Step-by-step explanation:
17 < 2(x+3)
17/2 < x+3
17/2 - 3 < x
To solve this question you have to use TAN COS SIN i give brainiest
Answer:
4.3Step-by-step explanation:
Use cosine:
cos = adjacent / hypotenusecos ∠L = KL/JLcos 21° = 4/xx = 4 / cos 21°x = 4.3 (rounded)Answer:
4.3Step-by-step explanation:
Here we will use cosine to find the value..
[tex] \cos = \frac{adjacent}{hypotenuse} [/tex][tex] \cos∠l = \frac{kl}{jl} [/tex][tex] \cos21° = \frac{4}{x} [/tex][tex]x = \frac{4}{ \cos21° } [/tex][tex]x = 4.3[/tex] When rounded off...What value of x makes the equation -5x - (-7 - 4x) = -2(3x - 4) tru
Answer: 1/10 or 0.1
Step-by-step explanation:
-(-7 - 4x) = -2(3x - 4)
7 + 4x = -6x + 8
* subtract 7 from both sides
4x = -6x + 1
* Add 6x to both sides
10 x = 1
* Divide both sides by 10
x = 1/10 or 0.10
HELP ASAP 23 POINTS!!!!!!!!!!!!!!!!!!!
PLEASE PLEASE PLEASE HELP ILL GIVE BRAINEST PLEAESE
Answer:
The last one
Step-by-step explanation:
There are two of the same x-values, meaning it is not a function.
Hopefully this helps!
Brainliest please?
Jake bought cupcakes for his sister's birthday party. 33 out of the 44 cupcakes had sprinkles on top. What percentage of the cupcakes had sprinkles?
Write your answer using a percent sign (%).
A particular plant root grows 2.5 inches per month. How many centimeters is the plant root growing per month? (1 inch = 2.54 centimeters).
Answer:
The plant root is growing 6.35 cm per month.
Step-by-step explanation:
This is a conversion problem. You are converting 2.5 inches to centimeters.
2. 5 inches * 2.54 cm/1 inch
inches cancels out and now you are left with multiplying 2.5 and 2.54.
2.5 * 2.54 cm = 6.35 cm
4) mZGHI = 176º, mZLHI = x + 143, and mZGHL = x + 55. Find x. H G
Answer:
x = -11
Step-by-step explanation:
(x + 55) + (x + 143) = 176
Combine like terms...
2x + 198 = 176
Isolate x
2x = -22
x = -11
cual es el valor de la y en la siguiente ecuacion y/3 = 7
lo ocupo para mañana
[tex] \frac{y}{3} = 7 \\ = > y = 7 \times 3 \\ = > y = 21[/tex]
Answer:y = 21
solve the quadratic 3x^2+x-5=0
Answer
x=1- the square root of 61/6
Solve for x
1. x/5 + 4=6
A x= -1
B. x= -8
C. x= 13
D. x= 10
E. x=1/3
f. x=8
Answer:
D. x=10
Step-by-step explanation:
6 - 4 = 2
5 x 2 = 10
10/5 + 4 = 6
:)
Jarrod had $2,453 dollars in his bank account. After buying a television, he had $1653 in his bank account. What is the percent of decrease in money in
Jarrod's bank account after he purchased the television? Round your answer to the nearest tenth:
А
30.5 %
B
32.6%
C
33.4%
D
34.9%
MWP 20
3
A 11:13
Answer:
d
Step-by-step explanation:
Solve for p.
3(p + q) = p
A. q = â€"two-thirds
B. q = â€"start fraction three over two end fraction
C. p = â€"two-thirds
D. p = â€"start fraction three over two end fraction
Solve for b, then find the value of b when a = 3.
4a = 2b â’ 7
A. â€"nine-halves
B. five-halves
C. nineteen-halves
D. 17
d = rt
A. r = dt
B. r equals t over d
C. r equals d over t
D. r equals d minus t
Find the width of a rectangle with a perimeter of 90 and a length of 15.
A. 90
B. 15
C. 45
D. 30
Answer: C
Step-by-step explanation:
thank me later
Round your answer to THREE (3) decimal places. If you do not round correctly, your answer will be marked incorrect.
If necessary, add zeros to your decimal to have 3 decimal places.
Your answer will be counted wrong if does not have 3 decimal places.
Answer:
Step-by-step explanation:
you need to add all 5 numbers together, then divide my 5. the answer should be 89.6
can u please help me
The correct answer should be 50 feet per side. I hope this helped you.
Which is the equation of the function?
Step-by-step explanation:
A function is an equation that has only one answer for y for every x. A function assigns exactly one output to each input of a specified type. It is common to name a function either f(x) or g(x) instead of y. f(2) means that we should find the value of our function when x equals 2.
Three more than twice a number is less than negative fifteen.
Answer:
3+2x < -15
x<-9
I hope this helps : )
Answer:
Step-by-step explanation:
How many zeros are there for the square of 200? 2,3,4,6
Answer:
C. 4Step-by-step explanation:
200² = (2*100)² = 4*10000, as we see there are 4 zerosCorrect choice is C
Answer:
4
Step-by-step explanation:
200²200×20040000Hence, there are 4 zeros for the square of 200.
A coordinate grid showing Time in hours on the x-axis and Distance from Start in miles. A line plotted passing through the 2 points at (0, 0) and (3, 180).
Abigail drives at an average speed of 60 miles per hour for 3 hours. The graph shows her distance versus time. Which statements are true? Check all that apply.
As Abigail’s time increases, her distance increases.
As Abigail’s time increases, her distance decreases.
At 2 hours, Abigail has traveled 120 miles.
At 1.5 hours, Abigail has traveled 100 miles.
At 3 hours, Abigail has traveled 180 miles.
Answer: 1,3, and 5
1.) As Abigail’s time increases, her distance increases.
3.) At 2 hours, Abigail has traveled 120 miles.
5.) At 3 hours, Abigail has traveled 180 miles.
Step-by-step explanation: i hope this helps :)
A, C, E
As Abigail’s time increases, her distance increases.
At 2 hours, Abigail has traveled 120 miles.
At 3 hours, Abigail has traveled 180 miles.
Step-by-step explanation:peep the attachment
Five tenths of a circle equals what decimal part of a circle?
Answer:
0.5
Step-by-step explanation:
5/10 of a circle is half of the circle.
Half is 0.5.
1. Please Determine the equation of the line from the tables and the graphs.
1. find equation of line with given data :
b) from the given table, we get y - intercept (c) = -4
now let's find slope (m) :
[tex] \dfrac{y_2-y_1}{ x_2 - x_1}[/tex][tex] \dfrac{0 - ( - 2)}{10 - 5} [/tex][tex] \dfrac{2}{5} [/tex]so, the required equation will be :
[tex]y = \dfrac{2}{5} x - 4[/tex]c) from the given graph we can see that y - intercept (c) = 3
now, let's find the slope (m) :
[tex] \dfrac{3 - 0}{0 - 7} [/tex][tex] - \dfrac{3}{7} [/tex]the equation will be :
[tex]y = - \dfrac{3}{7} x + 3[/tex]d) From this graph we get y - intercept (c) = -4
slope :
[tex] \dfrac{4 - 0}{4 - 2} [/tex][tex] \dfrac{4}{2} [/tex][tex]2[/tex]so, required equation will be :
[tex]y = 2x - 4[/tex]calvin works at smokin sally’s barbecue restaurant and keeps track of the numbers of customers who visit the restaurant over a four-day period..
If caliber made an average tip of $1.25 per customer, how much money did Calvin make in tips from Thursday to Sunday?
Answer:
Step-by-step explanation:
Dbbdhdbjsbsjsbsbns
Which relation is a function?
Answer:
2nd one from the top
Step-by-step explanation:
it is x=1
