Answer:
8 in
Step-by-step explanation:
Area of a square = l×w
Since it is a square then l and w are equal to each other.
So we can instead just say l^2 = A
l^2 = 68.2
l = square root of 68.2
l = 8.26
Lin runs 5 laps around a track in 6 minutes If Lin runs 21 laps at the same rate, how long does it take her
Answer:
It would take her 25.2 minutes
Step-by-step explanation:
6 divided by 5 gives you the 1.2 minutes
Then I would do 1.2 minutes for each lap * 21 laps = 25.2 minutes
Which expression uses the associative property to make it easier to evaluate 6(3/2 * 1/5)?
A. (6 * 3/2)1/5
B. (3/2 * 1/5)6
C. 6(3/2 * 1/5)
D. 6(1/5 * 3/2)
Answer:
A. (6*3/2)1/5
Step-by-step explanation:
A-P-E-X
3.6.2 CST
NEED HELP QUICK CAN SOMEONE PLEASE HELP WITH THIS!!!!!!
t + –44 = –45 are equivalent to what ?
Answer:
-1
Step-by-step explanation:
Juan is three times as old as Gabe and Gabe is six years older than Catherine. If the sum of their ages is 149, how old is each person? Define a variable, write an equation, solve the equation, and answer in a complete sentence.
Answer:
Juan = 93 years.
Gabe = 31 years.
Catherine = 25 years.
Step-by-step explanation:
Let the age of Juan = J
Let the age of Gabe = G
Let the age of Catherine = C
Translating the word problem into an algebraic equation, we have;
[tex] J = 3G[/tex] ..........equation 1
[tex] G = C + 6 [/tex] ........equation 2
[tex] J + G + C = 149 [/tex] ........equation 3
We would solve the linear equations by using the substitution method;
Substituting equation 2 into equation 1;
[tex] J = 3(C + 6)[/tex]
[tex] J = 3C + 18[/tex] ........equation 4
Substituting equation 2 and equation 4 into equation 3;
[tex] (3C + 18) + (C + 6) + C = 149 [/tex]
Simplifying the equation, we have;
[tex] 5C + 24 = 149[/tex]
[tex] 5C = 149 - 24[/tex]
[tex] 5C = 125[/tex]
[tex] C = \frac {125}{5}[/tex]
C = 25 years.
To find G; from equation 2
[tex] G = C + 6[/tex]
Substituting the value of "C" into equation 2, we have;
[tex] G = 25 + 6[/tex]
G = 31 years.
To find J; from equation 1
[tex] J = 3G [/tex]
Substituting the value of "G" into equation 1, we have;
[tex] J = 3 * 31[/tex]
J = 93 years.
Therefore, Juan is 93 years old, Gabe is 31 years old and Catherine is 25 years old.
Name two planes that intersect in SW in the figure to the right
Choose the correct answer below.
A. plane XTS and plane TSR
B. plane STX and plane VRQ
C. plane XTS and plane VRS
D. plane TSR and plane VRS
Answer:
a is the right answer you got this
Step-by-step explanation:
could anyone solve this equation
i)
[tex]8 - 3x = 23[/tex]
ii)
[tex]5x - 16 = 34[/tex]
iii)
[tex]2 - 5x = - 3[/tex]
Question 6 (1 point) Fossils are usually found in sedimentary rock. O True O False
Answer: true
Step-by-step explanation:
if the sum of two numbers is four and the sum of their squares minus three times their product is 76, find the numbers
Answer:
Numbers =(6,-2 )
Step-by step explanation:
Given
the sum of two numbers is four and the sum of their squares minus three times their product is 76,
Let the first term =X
Second term will be=4-x
So
X^2+(4-x)^2-3x(4-x)=76
x^2+16+x^2-8x-12x+3x^2=76
5x^2-20x+16=76
5x^2-20x-60=0
5(x^2-4x-12)=0
So x^2-4x-12=0
x^2-(6-2)x-12=0
x^2-6x+2x-12=0
X(x-6)+2(x-6)=0
(X-6)(X+2)=0
X=6,-2
Let X=6 and -2 then numbers will be 6 and (4-6)=-2
PLEASE SOMEONE HELP ME. I WILL BRAINLIEST YOU AND GIVE YOU POINTS.
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What is the Lcm of 18 and 32
Answer:
The LCM of 18, and 32 is
Answer: The LCM is 288.
Step-by-step explanation:
To find the least common multiple of 18 and 32, you will find the multiples of 18 and 32 and look for least multiple number that matches 18 and 32.
Multiples of 18 are: 18,36,54,72,90,108,126,144,162,180,198,216,234,252,270,288
Multiples of 32 are: 32, 64,96,128, 160,192,224, 256, 288
The last digit 288 is the least multiple number that appears in both multiples for the two numbers.
During summer, the height of the water in a pool decreased by 2 inches each week due to evaporation. What is the change in the height of the water over an 8 week period??
Answer:
16in or 1ft 4in
Step-by-step explanation:
Emily has 25 crayons and she gets 18 more how many crayons does she have now?
Answer: 43 crayons
Step-by-step explanation:
x⁴-3x³+x-1 divided by x²+x-1
Answer:
Step-by-step explanation:
Factor the linear expression 15x-10 using the greatest common factor of the terms
A.5(3x + 2)
B.5(3x - 10)
C.5(3x- 2)
D.15(x- 2)
Answer:
The answer would be A (3x+2).
Answer: 5(3x-2) - Choice [C]
Step-by-step explanation:
Hii, do you need to factor the expression 15x-10? Np! (:
Note that 15x and -10 have a 5 in common.
To factor it out, we divide 15x and -10 by 5
3x-2 is what we obtain
Next we put parentheses around 3x-2
(3x-2) is what we obtain.
Finally, we put 5 outside the parentheses
5(3x-2)
Voila! There's our answer, cheers! (:
--
Hope that this helped! Best wishes.
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What is the value of y in the solution to the following system of linear equations?
(2x+2=y
[2y = 5x-1
O 3
05
08
12
Answer:
The value of y is 12 nd that of x is 7
12 is the value of y in the solution to the following system of linear equations 2x+2=y and 2y=5x-1
The given system of linear equations 2x+2=y abd 2y=5x-1
2x-y=-2...(1)
-5x+2y=-1..(2)
Multiply equation (1) with 2.
4x-2y=-4
-5x+2y=-1
Add both the equations
-x=-5
x=5
Now plug in x value
2(5)+2=y
12=y
12 is the value of y.
To learn more on Equation:
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This is for one of my ARMY friends. Which property of math is 7+(-2)=(-2)+7
Please help I will really appreciate it
Step-by-step explanation:
Elevator's starting point = -90ft
Elevator's position after 15s = -20ft
The elevator did move upwards as
-20ft. > -90ft.
_________________________________
Distance covered by the elevator = -20 + -90
= -20 + 90
= 70ft.
Time = 15s
Speed = distance/time
= 70/15
= 4.7ft/s
HURRY PLEASE!!!!!!
Identify the pairs of supplementary angles (hurry i’m begging)
Answer:
It's: A
Step-by-step explanation:
What was the greatest impact farmers made in China
Answer:China made up $5.9 billion in U.S. farm product exports in 2018, according to the U.S. Census. It’s the world’s top buyer of soybeans and purchased roughly 60 percent of U.S. soybean exports last year.
Step-by-step explanation:
Ok please somebody help me “For every 330 feet a person travels up a mountain the temperature drops 1 °F. If the temperature is 78 °F. at the base of a 6,270- foot mountain, what is the temperature at the peak?”
For any number n>1, is
|(1/2 + 7/8i)^n|
a. Greater than 1?
b. Less than 1?
C.Equal to 1?
Answer:A
Step-by-step explanation:
|(1/2 + 7/8i)^n| is grater than 1.
What is complex number?A complex number is a number of the form a + bi, where a and b are real numbers ; This way, a complex number is defined as a polynomial.
Here, given that,
|(1/2 + 7/8i)^n|
where, n>1
then , we get,
|(1/2 + 7/8i)^n| is grater than 1.
To learn more on complex number click:
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Use the meaning of cube roots to show how to find an exact solution to the equation Ya + 2 =
- 2 without using a graph.
Answer: Coordinate plane, x, negative 2 to 2 by 1, y, negative 10
Step-by-step explanation: don't know just trying to help
Diego is thinking of two positive numbers. He says, “If we triple the first number and double the second number, the sum is 34.”
Write an equation that represents this clue. Then, find two possible pairs of numbers Diego could be thinking of.
This is the answer, 10*3+2*2=34
Answer:
[tex]3x + 2y = 34[/tex]
Step-by-step explanation:
x= the first number
y= the second number
That is how I understood the problem...
Solve this multi step equation: 7j + 20 = 3j + 40
Answer:
j=5
Step-by-step explanation:
7j+20=3j+40
Step 1: Subtract 3j from both sides.
7j+20−3j=3j+40−3j
4j+20=40
Step 2: Subtract 20 from both sides.
4j+20−20=40−20
4j=20
Step 3: Divide both sides by 4.
4j/4
20/4
j=5
Answer:
j=5
Answer: j = 5
Solve this multi step equation: 7j + 20 = 3j + 40
First step: bring the numbers that don't have a variable on the other side of the equal sign.
7j - 3j = - 20 + 40
*TIP: REMEMBER: when you have a positive number, and you bring it on the other side of the equal sign, it becomes negative; same thing with a negative number. When you have a negative number, and you bring it on the other side of the equal sign, it becomes positive.*
Second step: Solve the equations on both sides.
4j = 20
Final step: (this step is easy) divide 20 by 4
20/4 = 5;
Therefore, j = 5.
A student was working on the problem below: Mr. Braun has $85.00 to spend on pizzas and soda pop for a picnic. Pizzas cost $11.00 each and the drinks cost $0.90 each. Four times as many drinks as pizzas are needed. What is the maximum number of pizzas that Mr. Braun can buy? The student began by writing the let statement: Let x = # of pizzas Then the student wrote the inequality: \displaystyle 11.00(x)+0.90(4x)\ge85.0011.00(x)+0.90(4x)≥85.00 The student made a MISTAKE. Describe the student's error and explain how you know it's wrong. (Do not solve the inequality.)
Answer:
11x + 0.90(4x) ≤ $85
Step-by-step explanation:
Let the number of pizzas be represented by p
Let the number of sodas be represented by s
Mr. Braun has $85.00 to spend on pizzas and soda pop for a picnic. Pizzas cost $11.00 each and the drinks cost $0.90 each.
$11 × p + $0.90 × s = $85
11x + 0.90y ≤ $85.......Equation 1
Four times as many drinks as pizzas are needed.
4p = s
We substitute 4p for s in Equation 1
11x + 0.90(4p) ≤ $85
What is the maximum number of pizzas that Mr. Braun can buy?
The maximum number of pizzas Mr Braun can buy =
11x + 0.90(4p) ≤ $85
The student's error has to do with the inequality sign. The student used greater than or equal to.
The correct sign is less than or equal to because Mr Braun has only $85 to spend.
Jonathan is dowloading a movie on netflix the movie is approximately 720 MB if the movie takes 20 seconds to download what is the rate
Answer:
r,myp5\6t[
Step-by-step explanation:
sarah works part time in a shop
Allen earns $260.50
doing yard work. He mows 8
lawns for $25
each and weeds gardens for $5.50
each. What equation can be used to find the number of gardens he weeds, w
?
Which pair of angles is an example of supplementary angles?
A. Angle 1 and Angle 7
B. Angle 3 and Angle 6
C. Angle 2 and Angle 7
D. Angle 1 and Angle 4
Answer:
I would give you a straight answer if I could see the angles, but all I can say with this is that supplementary angles are angles that add up to 180 degrees.
Hope that helps!
Answer:
A. Angle 1 and Angle 7
Step-by-step explanation:
Angle 1 and Angle 7 are not equal but add up to 180° So your answer is A