Answer:
about 5.10 by 10.20 inches
Step-by-step explanation:
You can substitute the width for "x"
This would make the length 2x as it is two times the width
Area in a rectangle is Length times Width, so in this case it would be 2x * x
It gives you the area as 52 inches, so you can substitute this in the equation making it 52 = 2x^2
divide by two on both sides: 26 = x^2
take the square root of both sides, and x is 5.0999
Now to find the length, just double it, which rounds out to 10.20
5.0999 rounds to the hundredth as 5.10
so for dimensions you have 5.10 by 10.20
How high is a tree that cast a 23ft shadow at the same time a6ft post casts a shadow which is 4ft long
Answer:
if it's 6 ft tall cast a 4 ft long shadow there's a difference of two feet so you look at 23 ft Shadow add two ft and u have 25 ft tall
Please HELP!!!
the table of values represents a function f(x).
How much greater is the average rate of change over the interval, [7, 9] than the interval [ 4, 6 ]?
please help with the screenshot
Answer:
x = 10.73
Step-by-step explanation:
[tex] \sin(59) = \frac{9.2}{x} [/tex]
[tex]x = \frac{9.2}{ \sin(59) } = 10.73[/tex]
Answer:
10.73
Step-by-step explanation:
D= 180°-90°-59° = 31°
cos31° = 9.2/x
x = 10.73
Dewayne waters his plant with 0.76 quart of water every other day. Write the amount of water he uses in word form and as a fraction.
Answer:
In word form ----> Seventy-six percent
As a fraction -----> 76/100
hi can someone help me with this problem!!
Answer:
f(x) | 5 | - 1 | - 3 | - 1 | 5 |
Step-by-step explanation:
So first you'll say "-2" into function
Replace x with negative 2
f(x) =2(-2) ^2 - 3
8 - 3 = 5
Secondly place "- 1" into function
Replace x with negative 1
f(x) = 2(-1)^2 - 3
2 - 3 = - 1
Thirdly place "0" into function
Replace x with 0
f(x) = 2(0)^2-3
0 - 3 = - 3
Then place "1" into function
Replace x with 1
f(x) = 2(1)^2 - 3
2 - 3 = - 1
Lastly place "2" into function
Replace x with 2
f(x) = 2(2)^2 - 3
8 - 3 = 5
{ hope this helps}
The unit circle with center at the origin is a relation but not a function.
a. Find the two functions which are semicircles of the unit circle, and determine
their domains and ranges?
b. Are these functions onto functions? Justify.
c. Find the two functions which are lie in one of the semicircle in part a, and
determine their domains and ranges?
d. Are these functions one to one correspondence functions? Justify.
Step-by-step explanation:
the formula of the "relation" is
x² + y² = r²
this is for circle with its center at the origin.
now that gives us
y² = r² - x²
y = ±sqrt(r² - x²)
a. this ± of the square root gives us the 2 functions.
y = sqrt(r² - x²)
y = - sqrt(r² - x²)
as it is a circle, the ranges and domains are the same.
domain is the allowed number interval for x, and range is the number interval for y (the function results).
both are
-r <= x <= r
outside of that range the square root argument becomes negative, and that is undefined for R (the set of real numbers).
b. if we want to see it that way, we can say that
f(x) = r² - x²
g(x) = sqrt(x)
and so
sqrt(r² - x²) = g(f(x))
a function into function.
c. let's pick the "positive" semicircle
y = g(f(x)) = + sqrt(r² - x²)
f(x) = r² - x²
the domain is all x (-infinity < x < +infinity)
the range is (-infinity < y <= r²), as negative and positive larger x will turn f(x) negative. the functional results cannot get bigger than r² (for x=0).
g(x) = +sqrt(x)
the domain is all positive x incl. 0 (0 <= x < +infinity), as sqrt is not defined for negative values. at least not in R.
the range is also all possible positive values incl. 0
(0 <= y < +infinity).
d.
A one-to-one correspondence function is a function between the elements of the two sets of domain and range, where each element of one set is paired with exactly one element of the other set, and each element of the other set is paired with exactly one element of the first set.
that means, every x value creates exactly one y value, and no y value occurs more than once.
this is no true for
f(x) = r² - x²
because for -r <= x <= r we get the same y for -x and +x.
it is true for
g(x) = sqrt(x), as no 2 different numbers have the same square root.
a man on rupees 15000 in a month. he spends rupees 3000 on food rupees 4000 on rent rupees 2000 on its children's education and the rest he saves in a bank
(I) Express separately the expenditure on food rent and education in percent
(ii) what is his savings percent every month
i will give brainliest who solves more clearly for me
Answer:
132000
Step-by-step explanation:
do you understand it
Given cos x=12/13 and sinx=5/13. What is ratio for tan x ?
Answer:
5/12
Step-by-step explanation:
tan(x)=sin(x)/cos(x)
So by substitution we have
tan(x)=(5/13)/(12/13)
Multiplying numerator and denominator by 13 gives
tan(x)=5/12
Solve 3(x – 5) + 13 ≥ 22 – 9x.
Question 6 options:
A)
x ≤ –2
B)
x ≥ –2
C)
x ≥ 2
D)
x ≤ 2
Answer:
the answer is C
Step-by-step explanation:I hope you understand.... if you don't, let me know. pls make this your brainliest answer.
cheers
Can someone help me solve these 3 trig identity problems? I am stuck on these last 3... I will give brainliest!
(calculators are allowed)
Answer:
1. 1,246
2. 0,545
3. 0,9539
Step-by-step explanation:
semoga membantu :)
Marvin has 2 rabbits. The number of rabbits triples every year. Marvin needs 100 pounds of food to feed one rabbit per year. How many pounds of food will Marvin need to feed his rabbits during the 3rd year?
Answer:
1200 pound
Step-by-step explanation:
year 1: 2 rabbits
year 2: 2 rabbits x 3 = 6 rabbits
year 3: 6 rabbits x 3 = 12 rabbits
12 rabbits x 100 pounds = 1200 pounds
what is the measure of angle JKM
10 points PLEASE
Answer:
(12x+3) + (6x-3)=90 can pass to
18x=90 you divide both sides by 18
And you get x=5
Lines m and n are parallel lines. If line m has a slope of -1, find the slope of linen. Type a numerical answer in the space
provided. If necessary, use the key as a fraction bar. Do not type spaces in your answer.
helppp
find the measure of the missing angles
Answer:
B and c both equal 46
Step-by-step explanation:
134-180=46
B and c are verticle angles they will equal the same number
Que costaría más comprar una vaca o comprar hamburguesas de 1€ hasta igualar a una vaca.
Answer:
haha pues cuesta mas las hamburgesas porque toca ir al doctor despues
Step-by-step explanation:
-1 and 3 tenths plus 4 tenths
The answer you are looking for is -9/10, or -0.9.
Solution:
-1 3/10+4/10
-13/10+4/10
-9/10, or -0.9
Answer:
-0.9
Step-by-step explanation:
ninety-eight thousand ,five (how to write in numerical)?
Answer:
98005
Step-by-step explanation:
ninety-eight thousand = 98000
five = 5
together = 98005
Dave's family went to the beach. They got to the beach at 1:45 P.M. and swam in the ocean
for 1 hour and 13 minutes. Then they built sand castles for 35 minutes and played volleyball
for 1 hour and 35 minutes before heading home. What time was it when Dave's family left
the beach?
Answer:
5:08 PM
Step-by-step explanation:
1:45 plus 1 hour and 13 minutes equals 2:58. 35 minutes added to 2:58 equals 3:33. Finally 3:33 PM added to 1 hour and 35 minutes equals 5:08 PM.
Let f(x) = -3x and g(x) = 2x-1
Find the following:
(fog)(1)
Step-by-step explanation:
steps are in picture above.
Note : if you have any confusion let me know.
9514 1404 393
Answer:
-3
Step-by-step explanation:
[tex](f\circ g)(1) = f(g(1)) = f(2\cdot1-1) = f(1)=-3\cdot1\\\\\boxed{(f\circ g)(1)=-3}[/tex]
find the slope of each line 2x+3y=9
Answer:
[tex]-\frac{2}{3}[/tex]
Step-by-step explanation:
1) the common formula of slop-interseption form is: y=slop*x+i;
2) if to re-write the given equation, then y= -2/3 x+3; where the value of the required slope is -2/3.
Find the slope of the line that passes through the points (3,5) and (8,9).
Answer:
slope=(y2-y1)÷ ( x2-x1)
where x1=3, x2=8 and y1=5, y2=9.
slope=(9-5)÷(8-3)
slope=4÷5....ans
simplify 5 p - 3 - (1 + p) +( 2 - p)
Hi ;-)
[tex]5p-3-(1+p)+(2-p)=\\\\=5p-3-1-p+2-p=\\\\=5p-p-p-3-1+2=\boxed{3p-2}[/tex]
Step-by-step explanation:
5p - 3 - 1 -p + 2 - p
5p - p - p - 3 - 1 + 2
5p - 2
Help me with both of you, please, I'll give you more points
Answer:
1. 80 or D
2. 18 or A
Step-by-step explanation:
well if a triangle is 400 square inches that mean the area is 400 and we know that the formula for area of a triangle is 1/2bh. we can do 400 = 10h/2 and now we solve for h. so times by 2 to get 800 = 10h and divide by 10 to get 80 inches. now substitute 80 in the equation and you get 400. so the answer is true.
for the second one the area of a trapezoid is (b_1+b_2)/2 • h so we substitute again to get 342 = 38h/2. now we can times by 2 to get 684 and divide by 38 to get 18. or you can do 19h = 342 and get 18.
now if you substitute the 18 in the equation you end up with 342. so the answer is true
When a number and its _________ are added, the sum is ______.
Answer:
When a number and its pair are added, the sum is greater
You have 2 cups of ketchup. You need 2 Tbsp to make one serving of barbecue sauce. How many servings can you make?
Here we need to perform a change of units to see how many servings can we make. We will see that we can make 48 servings.
Change of units:
We know that we have 2 cups of ketchup and we need 2 tbsp to make a serving, so to see the total number of servings that we can make, we need to see how many teaspoons we have in 2 cups.
We can use the relation:
1 cup = 48 teaspoons.
Then:
2 cups = 2*(48 teaspoons) = 96 teaspoons.
And we need 2 per serving, then we can make a total of:
96/2 = 48 servings.
If you want to learn more about change of units, you can read:
https://brainly.com/question/9032119
(4a) square 3 ÷ (b - 2) ; a = 2 and b = 4
Step-by-step explanation:
=4(2)×9÷(4-2)
=8×9÷2
=72÷2
=36
Which of the following is a common multiple of 4 and 10?
A 100
B 104
C 90
D 110
Answer:
A) 100
Step-by-step explanation:
When looking for a common you can move up the times tables of each number until you find a matching pair. 10x10=100 and 4x25=100. By looking for common answers through the times tables you can more easily find a common multiple.
Thomas owns a car shop that runs out of his garage. he changes oil in people's cars and checks their tire pressure. Each time he changes the oil in a car he makes $15. He needs to make $480 this week to pay off a bill he has. How many cars must he service in order ti make this money?
Answer:
four-hundred and eighty÷fiteen= thirty-two
Gabby recorded the number of points she scored in her first 7 Basketball games. Which box and wiskers is correct?
Answer:
There is no Image
So Instead
There should be the lowest extreme aka 0, and hights extreme (Whatever number is last) Then you've got average (The Middle) and n the middle of it is the median.
please help me. thank you so much i will give brainliest if it’s right:)
Answer:
distance is proportional with time
Step-by-step explanation: