Step-by-step explanation:
[tex] \frac{4}{ \sqrt{5} + \sqrt{2}} - \frac{3}{ \sqrt{5} - \sqrt{2} } = \\ = \frac{4( \sqrt{5} - \sqrt{2} ) - 3( \sqrt{5} + \sqrt{2} ) }{( \sqrt{5} + \sqrt{2} )\times ( \sqrt{5} - \sqrt{2} )} = \\ = \frac{4 \sqrt{5} - 4 \sqrt{2} - 3 \sqrt{5} - 3 \sqrt{2} }{5 - \sqrt{10} + \sqrt{10} - 2 } = \\ = \frac{ \sqrt{5} - 7 \sqrt{2} }{3} [/tex]
top earning app/game of usa
Answer:
Pokemon Go
Step-by-step explanation:
¿? :v :v :v
¿? :v :v :v
I NEED HELP QUICK!!!
Answer: 12cm
Step-by-step explanation:
A student usually saves $20 a month. He would like to reach a goal of saving $350 in 12 months. The student writes the equation
350 = 12(x + 20) to represent this situation. Solve the equation for x.
• Show your work or explain your answer.
Write your answer as a sentence that describes what the variable x represents.
Answer:
Step-by-step explanation:
350=12(x+20)
(divide both sides by 12)
29.1667=x+20
(subtract 20 from both sides)
x=9.16667
X (9.17) is the additional amount of money the student must save each month in order to reach his goal.
Help me out please!!!!!!!!
Answer:
its d
Step-by-step explanation:
it so easy it say it on the chart
Where are my smart friends?? I had $370.00. My Mom gave $150.00. My Dad gave $150.00. My Aunt and Uncle gave me $100.00. I had another $30.00. How much did I have?
Answer:
im ur smart friend
Step-by-step explanation:
370.00 plus 150.00 equals to 520.00
520.00 plus another 150.00 equals to 670.00
670.00 plus 100.00 equals to 770.00
770.00 plus 30.00 equals to $800.00 total
Answer: $800 total
Answer: it says had so its $400
Step-by-step explanation:
Its 370+30=400
20 baseballs pitched he hit 17. What %did TJ hit
Multiply the following numbers. Reduce the answer to lowest terms.
3 1/5 x 2 1/7
Answer:
48/7
Step-by-step explanation:
= 3 1 × 2 1
5. 7
= 16 × 15
5. 7
= 240 , if we divide both numbers by 5 we get;
35
= 48
7
Hellllp!
Ahmed needs to cover a box that is 6 cm long, 4 cm high and 4 cm wide with
material on all sides. How much material does he need?
Will mark as brainlist
Thaaaaaanks
Answer:
he needs 128cm² materials
Step-by-step explanation:
surface area of cuboid =2(lb+bh+lh)
=2(6×4+4×4+6×4)=128cm²
Please help I will give points
Answer:
1/32
Step-by-step explanation:
...
Please help I’ll mark you as brainliest if correct
Answer:
I dont know for sure but i think its 5 or 4 feet
a chef bought 6 5/9 pounds of carrots
determine whether the equation is exponential growth or exponential decay
1a. y = 2(11/5)^-x
2b. y= e^-2x
3c. y= 1/4e^x
9514 1404 393
Answer:
decaydecaygrowthStep-by-step explanation:
If the base of a positive exponential is greater than 1, the function is a growth function. If it is less than 1, the function decays.
Remember that a^-1 = 1/a, so a negative exponential can be transformed to a positive one.
__
1. y = 2(11/5)^-x = 2(5/11)^x . . . . 5/11 < 1, so decay
2. y = e^(-2x) = (1/e^2)^x . . . . 1/e^2 < 1, so decay
3. y = 1/4e^x . . . . e > 1, so growth
_____
e ≈ 2.71828 . . . an irrational number
Right triangle ABC is shown.
Which equation can be used to solve for c?
Answer:
[tex]\sin(50^\circ)=3/c[/tex]
Step-by-step explanation:
Remember SOH/CAH/TOA. We will use SOH, which means [tex]\sin[/tex] of the angle is equal to the opposite side over the hypotenuse.
Troy and Lazetta are solving the following word problem:
Rosalie's cat weights 9.7 pounds. Her dog weighs 25.8 pounds. What is the weight of both animals
combined?
Troy sets up his problem as 9.7 + 25.8. Lazetta sets up her problem as 25.8 +9.7. Who is correct? Complete
the explanation of your answer.
Answer:
1). 35.5
2).commutitive property of addition
3).Both
Step-by-step explanation:
1). 35.5
2).commutitive property of addition
3).Both
Evaluate the expression 4! ÷ (4-3)!
Answer:
24
Step-by-step explanation:
(4*3*2*1)/1
(4*3*2*1)
12*2
24
What is the height of a rectangle with a perimeter of 152.8 mm and base
length of 72.2 mm?
Anyone know the answer to this question
Answer:
The answer is D.............
I need the answers and explanation please ill mark brainliest
Answer:
(from top row to bottom row, left to right) 4, 32, 128, 12, 24, 96
Step-by-step explanation:
So, the first pair in the table would be 2/3 (club soda to grape juice). You can use that pair, or in other mathematical terms fraction, to generate other fractions equivalent to it, such as 4/6, 8/12, and 16/24 (those are some of the fractions in the table btw :D).
Hope this helped :D
(and have a great day/afternoon/night!!)
help please i will award brainliest
Answer:
D 826.80
Step-by-step explanation:
Answer:
$780.00
Step-by-step explanation:
just add 420+360= $780.00
Which graph represents a proportional relationship? A) B) D)
Answer:
Step-by-step explanation:
How many 6-digit numbers are there in our system of counting numbers?
there are 900,000 6 in all
brainliest or a thank you please <33 :)
Hi please help me with this asap.
Lisa is saving money to buy a game. The game costs $36, and so far she has saved three-fourths of this cost. How much money has Lisa saved?
On a math test, students
earn 4 points for each correct answer and lose 1 point
for each incorrect answer. If there are 50 questions on
the test, a student's score is shown by the expression
4(50 - w) - w, where w is the number of wrong
answers. Chris says that the expression 5(40 - w) could
also be used. Is he correct? Why or why not? Show your work.
Five friends equally shared half of one large pizza and 1/4 of another large pizza. What fraction of each pizza did each friend get? How do the two amounts compare to each other?
Answer:
Step-by-step explanation:
1/2 divide by 5= 1/10
1/4 divide by 5= 1/20 so 1/10 is also 2/20+1/20=3/20
so the answer is 3/20 of a pizza
A rectangle has 2 sides that are 23 meters and 2 sides that are 19 m. What is the rectangle’s perimeter?
Group of answer choices
Answer: 84 meters
Step-by-step explanation:
Add the sides together. 23+23=46
then add 19+19=38 the total perimeter is 46+38= 84 meter's
the gradiant y=2x³-5x+1 at point (2,7)
Given:
The equation of the curve is:
[tex]y=2x^3-5x+1[/tex]
To find:
The gradient (slope) of the given curve at point (2,7).
Solution:
We have,
[tex]y=2x^3-5x+1[/tex]
Differentiate the given equation with respect to x.
[tex]y=2(3x^2)-5(1)+(0)[/tex]
[tex]y'=6x^2-5[/tex]
Now we need to find the value of this derivative at (2,7).
[tex]y'_{(2,7)}=6(2)^2-5[/tex]
[tex]y'_{(2,7)}=6(4)-5[/tex]
[tex]y'_{(2,7)}=24-5[/tex]
[tex]y'_{(2,7)}=19[/tex]
Therefore, the gradient (slope) of the given curve at point (2,7) is 19.
I need help with Algebra 2. Thank you! :)
Answer:
B: 6.0
Step-by-step explanation:
-3t^2+9t+54 = 0
This is the equation that needs to be solved
Divide both sides by -3
t^2 - 3t - 18 = 0
The factors of 18 are: (1 18) (2 9) (3 6)
3 - 6 = -3 and 3 x -6 = -18
So: (t + 3) (t - 6) = 0
t = -3, 6
It can't be negative so the answer is 6
HELP ME PLEASE ITS FOR MY NEXT YEARS CLASS
A local park currently has 150.04 square meters of grassy area. The members of a community group have proposed the following changes to the way the park land is used.
Clearing dead trees and shrubs would allow for 37.51 square meters of additional grassy area.
Removing an unused picnic pavilion would allow for 82.70 square meters of additional grassy area.
Updating and expanding the playground would reduce the grassy area by 54.19 square meters.
How many square meters of grassy area would the park have if all of the community group's proposals were applied?
A.
66.02 square meters
B.
95.85 square meters
C.
216.06 square meters
D.
249.42 square meters
Answer: they would have 216.06 square meters of grassy area left in the park
Step-by-step explanation: if you start with 150.04 and add 37.51 by removing trees and shrubs you would have 187.55 and then if you added 82.70 more square feet by removing the unused Picnic pavilion you would have 270.25 square meters of grassy area. Then lastly is you update the playground by reducing 54.19 square meters ( 270.25-54.19) you would get left with 216.06 square meters of grassy area :)
Fill in the blank. In the triangle below, x =
decimal places.
Round your answer to two
Answer:
x = 44.80
Step-by-step explanation:
Apply trigonometric function to find x.
Reference angle = 52°
Opposite side to reference angle = x
Adjacent side = 35
Apply TOA:
Tan 52° = Opp/Adj
Tan 52 = x/35
35 × Tan 52 = x
44.7979571 = x
x = 44.80 (to 2 decimal places)