Find cos(a) in the triangle.
Choose 1 answer:
21
А. 21/29
B. 20/29
C. 20/21
D. 21/20
[tex]{\huge{\boxed{\mathcal{\green{ANSWER}}}}} \\ cos( \alpha ) = base \div hypotenuse \\ \\ base \: = \: 21 \\ \\ hypotenuse = 29 \\ \\ cos( \alpha ) = 21 \div 29 \\ \\ {\huge{\boxed{\mathfrak{\red{hope \: it \: helps \: }}}}}[/tex]
243,700,000 in scientific notation
Answer:
Read explanation, you gotta know how
Step-by-step explanation:
Step 1: What I do is pretty much find where you want the dot to be, which in this case is between the 2 and the 4.
Step 2: right now the dot is all the way to the right, so we gotta move it to the left.
Step 3: start moving the dot to where you want it to be (inbetween the 2 and the 4) and make sure to count how many times you move the dot Left, until you reach the point you want it to be.
step 4: now you have the dot where you want it to be, and you counted how many times you moved the do to get there (Should look like this now= 2.437) you dont need the zeros anymore because 2.43700000 is the same as 2.437.
Step 5: add the scientific notation thing which is (Number) x 10^ (the amount of times you moved the dot to the left)
Step 6: now you have the answer which is 2.347 x 10^8 (dont just skip all the explanation to do this, If you learn how you wont need to waste your points asking the same question again.)
here is the next one
Answer:
15 students per teacher
10 students per tutor
11 tutors
Step-by-step explanation:
75/5=15
60/6=10
110/10=11
What different styles of Tango are there today? Indonesian Tango, Brittish Tango French Tango, Polinesian Tango Electronic Tango, Tango Fusion, Argentine Tango and more Irish Tango, African Tango
Answer:
d. Electronic Tango, Tango Fusion, Argentine Tango and more
answer this question
Answer:
Hello! answer: 62.8
Step-by-step explanation:
Cirmcumfrence can be found by doing
diameter × pi are diameter is 20 and pi is 3.14
20 × 3.14 = 62.8 therefore the circumference is 62.8 HOPE THAT HELPS!
The woods behind Adam's house were 12 miles wide and 25 miles long. What is the area and perimeter
of the woods?
Answer: Perimeter = 74
Step-by-step explanation:
Determine the surface area of a rectangular prism with the following dimensions:
Length = 5 cm, Width = 1 cm, Height = 8
a.
212 sq. cm
c.
120 sq.cm
b.
106 sq.cm
d.
290 sq. cm
Answer:
b. 106 sq.cm
Step-by-step explanation:
A=L×W
A1= 2(5×8) = 2(40) = 80
A2= 2(1×8) = 2(8) = 16
A3= 2(5×1) = 2(5) = 10
Total area = 80 + 16 +10 = 106 sq. cm
Need help on this question asap please
Answer:
Step-by-step explanation:
first one = triangle
2nd one = rectangle
3rd one = rhombus
4th one = trapezoid
5th one = kite
6th one = circle
14m + 51 - 6s + 75 - 81 + 115 - 95 - 41 + 10p - 3p + 51
what is the coefficient of m?
Answer:
[tex]14is \: coefficient \: of \: m[/tex]
SOMONE PLEASE HELO ME SCHOOL ENDS NEXT WEEK
Answer:
sorry dont know 4 or 5 8. 9 but
6. 4 %
7. 60%
Step-by-step explanation:
The graph shows the amount of money that Janice saves each week from her summer job. which equation best represents the graph
Answer:
H. y=200x+150
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IM USING 20 POINTS FOR THIS PLS HELP AND SHOW WORK
Answer:
the object is in the air on the time interval (0.24 sec, 6.51 sec)
Step-by-step explanation:
The object is 'in the air' for all t such that h> 0. We need to find the roots of h = -16t^2 + 108t - 25 = 0. From the graph we see that both t values are positive. Once we find them, we subtract the smaller t from the larger t, which results in the length of time the object is in the air.
Use the quadratic formula to find the roots of h(t). The coefficients of t are {-16, 108, -25}, and so the discriminant b^2 - 4ac is
108² - 4(-16)(-25) = 11664 - 1600 = 10064, whose square root is 100.32.
Then the quadratic formula x = (-b ± √[b² - 4ac)/(2a) becomes
-108 ± 100.32 108 ± 100.32
t = ---------------------- = --------------------- = 3.375 ± 3.135
2(-16) 32
or t = 6.51 or t = 0.24 (both times expressed in seconds).
So, again, the object is in the air on the time interval (0.24 sec, 6.51 sec)
Solve the equation:
−3(y-5)=24
Answer:
y = -3
Step-by-step explanation:
-3 (y-5) = 24
divide both sides by negative 3
y - 5 = -8
add 5 to both sides
y = -3
hiii please help i’ll give brainliest if you answer correctly
A park charges $45 to enter and $0.75 per game. Write an algebraic expression to represent the total amount paid by a guest.
Answer:
y = 0.75x + 45
Step-by-step explanation:
x would be the amount of games played and y would be the total money spent.
Answer:
y= 0.75x+45
Step-by-step explanation:
y= total amount paid by guest
x = # of games
0.75 x = $0.75 paid per game
45= minimum charge of 45 to enter park
1 Select all the shapes that always have pairs of perpendicular sides.
hexagon
parallelogram
rectangle
rhombus
square
trapezoid
Answer:
square, rectangle, parallelogram
Answer:
squares, rectangle, parallelogram, rhombus
Step-by-step explanation:
The graph shows how many calories are in a store's best selling candy.
Answer:
What is the full question?
How can you write the expression (-15)(-15)(-15)(-15) using exponents?
a. -15^4
b.(-15)^4
c. 4(-15)
d. 4(-15)^4
Answer:B
Step-by-step explanation:
NO WEBSITES/ fake links or your getting reported! Help me with ALL the problems!
Answer:
5 divided by 8 is 0.625
1 divided by 2 is 0.5
3 divided by 5 is 0.6
7 divided by 4 is 1.75
4 divided by 6 is 0.666666666 or 0.6 with the underline if u print this paper out or 0.666
Step-by-step explanation:
u will have to do the model part but i hope i helped
You deposit $2500 in an account that pays 12% annual interest rate compounded continuously. Find the balance after 5 years.
Answer:
$4,555
Step-by-step explanation:
According to the scenario, calculation of the given data are as follows,
Total deposit (P) = $2,500
Annual interest (r) = 12%
Time period (t) = 5 years
We can calculate the balance after 5 years if compounded continuously by using following formula,
FV = P[tex]e^{rt}[/tex]
By putting the value, we get
FV = $2,500 × [tex]e^{(0.12 * 5)}[/tex]
= $2,500 ×[tex]e^{.60}[/tex]
= $2,500 × 1.822
= $4,555
True or false?
Read it carefully.
An exponential decay function represents a quantity that has a decreasing halving time.
Answer:
true
Step-by-step explanation:
Answer:
Yes, the statement "An exponential decay function represents a quantity that has a decreasing halving time" is true. In addition, this process can be expressed by the following differential equation, where N is the quantity and λ (lambda) is a positive rate called the exponential decay constant: d N d t = − λ N . {displaystyle {frac {dN} {dt}}=-lambda N.}
Step-by-step explanation:
Help me with this question, explain how u get. I’ll give brainliest
ANSWER: 1 SOLUTION
Step 1: Subtract 2x-1 from both sides.
x2−(2x−1)=2x−1−(2x−1)
x2−2x+1=0
Step 2: Factor left side of equation.
(x−1)(x−1)=0
Step 3: Set factors equal to 0.
x−1=0 or x−1=0
x=1
Answer:
x=1
Answer:
x=1
one solution
Step-by-step explanation:
x²= 2x-1
x²-2x+1=0
(x-1)²=0
x-1=0
x=1
one solution
PLEASE HELP. Will give 70 points!!! Demonstrate In A Brief Paragraph How The Search To Explain Planetary Orbits Exemplifies The Scientific Method and the use of models.
People firstly believe that the planets move in a circular orbit until Newton came up with his hypothesis by inventing calculus so that we could understood and calculated planetary orbits and their accuracy.
Explanation:
Everyone assumed the planets were perfect circles until Newton came up with an idea. Slowly people would make maps of the orbits that added circles on circles, and they could never really explain about the movement of the planet. They simply say that planets move on circles but they lacked the math to explain or prove it. Then Newton came up with an idea of inventing calculus so that we could understood and calculated planetary orbits and their accuracy.
Firstly people used their observations and say that the orbits looked like circles, then they developed their models and did the math, and proposed their hypothesizes which were wrong, until Newton came along and tried to match a model that used elliptical orbits and invented the math that allowed him to make predictions with it. His model worked for most planets.
However he could not explain about the planet Mercury for instance since it was a very strange orbit. Then after the Einstein's theory of General Relativity he could also explain very deeply about it.
Scientists and Astronomers made hypothesizes that there was another planet orbiting too close to the sun to see with telescopes, called Vulcan, that explained mercury's orbit before Einstein's theory. Then long after we had telescopes which was good enough to see if there was a planet orbiting closer to the sun than mercury.
11. If x and y are both negative, when is x - y positive?
Answer:
when y is greater then x.
Step-by-step explanation:
for example -2 - -9
turn both inside negatives pos
-2 + +9 making it 7.
This is the other question that I need help with :) Thanks!
Step-by-step explanation:
In the figure,
height of triangle = 10m
base of triangle/Diameter of circle = 14m
radius = 7m
Area of triangle = 1/2 × b × h
= 1/2 × 14 × 10
= 7 × 10
= 70m²
Area of semi-circle = 1/2 × pi × r²
= 1/2 × 3.14 × 7²
= 76.93m²
Area of the figure = 70 + 76.93 = 146.93m²
Katana's mom bought her two items using a credit card. The first item cost $260, and the second item cost $373. Later, she retumed both items to the store. What was the change in the amount owed to the credit card company from retuming both items? A 1633 OB 1113 C 1113 d.-633
Answer:
its DDDDDDD
Step-by-step explanation:
A television originally cost
$
2660
. It goes on sale at
10
%
off the original price.
How much do you save when you buy the television now?
Saving = $
What does the television cost now?
Cost now = $
Submit Answer
Answer:
You save $266. The television costs $2394.
Step-by-step explanation:
10% off the original price is $266. The television is 10% off, meaning the new price is 90% of the original price. Therefore, you can subtract $2660 - $266 or multiply 90% × $2660.
Which expression is equal to (3 × 5) × 4?
A) (3 + 5) × 4
B) (3 × 5) + 4
C) 3 × (5 × 4)
D) (3 × 5) + (3 × 4)
Answer:
c
Step-by-step explanation:
did the test :)
how to evaluate 5a + 3 ?
Answer:
15a
Step-by-step explanation:
Multiply
3
by
5
=
15
a
What is the first term of the quotient of the following division problem?
(х – 1) = (х + 2)
Answer:
I think the answer is C. x^2