Answer:
2.399
Step-by-step explanation:
Given the trigonometry expression:
tan(sin^-1((-12/13))
We are to find the exact value
tan(sin^-1((-12/13)) = tan(sin^-1((-0.9231))
tan(sin^-1((-12/13)) = tan(-67.38)
Also note that tan(-theta) = -tan theta
tan(-theta) = -tan67.38
tan(-67.38) = -2.399
The exact value is 2.399
Write the slope intercept form of the equation of the line through the given points
a square dance set requires 4 couples 8 dancers with each couple standing on one side of a square. There are 250 people at a square dance. What is the greatest number of sets possible at the dance?
Given:
1 set requires 4 couples 8 dancers.
Total number of people at a square dance = 250.
To find:
The greatest number of sets possible at the dance.
Solution:
We have,
Total people = 250
1 set = 8 people.
[tex]\text{Number of possible sets}=\dfrac{\text{Total people}}{\text{People required for 1 set}}[/tex]
[tex]\text{Number of possible sets}=\dfrac{250}{8}[/tex]
[tex]\text{Number of possible sets}=31.25[/tex]
Number of possible sets cannot be a decimal or fraction value. So, approx. the value to the preceding integer.
[tex]\text{Number of possible sets}\approx 31[/tex]
Therefore, the number of possible sets at the dance is 31.
On a recent survey, 60% of those surveyed indicated that they preferred taking a trip to the beach over a trip to the mountains. If 810 people preferred a trip to the mountains, how many people were surveyed?
1) 486
2) 870
3) 1,350
4) 2,025
Answer:
Answer is number 3
Step-by-step explanation:
A data set has a mean of 42 and a standard deviation of 7.8 if an element in the set is 54 find its z-score
Answer:
mean=42
SD=7.8
X=54
Z=(X-u)/SD
Z=(54-42)/7.8=12/7.8
=1.54
I will give you a good amount of points if you answer this correct
Answer:
I think the answer is B. The equation has infinitely many solutions.
Step-by-step explanation:
4(3x + 4) = 15x + 12 - 3x + 4
*group like terms so 4(3x+4) = 15x - 3x + 12 + 4
*add similar elements 15x - 3x = 12x
*add the numbers 12 + 4 = 16
*Expand to 12x + 16 - 16 = 12x + 16 - 16
*You simplify 12x = 12x
*Subtract 12x from both sides
*Then Simplify which is 0
Which means Both sides are equal to 0
True for all X
A diver is on a springboard that is 4 meters above the surface of the pool. another diver is 5 meters below the surface of the pool. Who is closer to the surface of the pool?
Answer:
A
Step-by-step explanation:
Let's say the surface of the pool is 0, and the diver 4 meters above represents +4, and the diver 5 meters below represents -5. Which number is closer to 0? It's 4! 4 is 4 numbers away from 0, meanwhile 5 is 5 numbers away from zero, 4 is closer to 0!
please god help me solve this, i cant fail this assignment lol. i have learning disabilities- mostly with mathematics so please explain this in the most simple way possible like ur speaking to a 2 year old
Answer:
B) 5.7
Step-by-step explanation:
The area of a square is found by multiplying its sides. Since a square has perfectly equal side lengths, you know that the square root of the area is equal to the side lengths. The area is 33. The square root of 33 is roughly 5.7. Hope that helps!
vonda has 6 pencils. lipe has 12 times as many pencils as vonda. let n equal the number of pencils lupe has?
which equation shows how many pencils lupe has
Answer:
i believe the answer would be 12 x 6 = n.
10 Select the answer from the menu.
The equations y = 7x – 2 and 14x – 2y = 3 represent
(A) parallel lines
(B) perpendicular lines
(C) the same line
(D) intersecting, non-perpendicular lines
Answer:
Parallel lines
Step-by-step explanation:
The standard form of equation of a straight line is expressed as:
y = MX+c
m is the slope
Given the equations
y = 7x – 2
On comparison;
m = 7 i.e the slope of the line is 7
For the line 14x – 2y = 3
First write in standard form
-2y = -14x +3
y = -14x/-2 + 3/-2
y = 7x- 3/2
Hence the slope is also 7
Since both equations have the same slope hence they are parallel lines(Parallel lines have the same slope)
Which pair shows equivalent expressions? (a) 2(2/5x+2)=2 2/5 x+1 (B) 2(2/5x+2) = 2/5x+4 (C) 2(2/5x+2) =2/5x+2 (D) 2(2/5x+2) =2 2/5x+8
Answer: C) 2(2/5x+2) =2/5x+2 this would be the answer.
Step-by-step explanation:
12) The ratio of the measures of the three sides of a triangle is 4:6:9, and its perimeter
is 190 inches. Find the measure of each side of the triangle. Show proportions.
Answer:
:)
answered in comments
Step-by-step explanation:
find the slope please
Answer:
11) 1/3
12) 5/3
13) -3/5
14) 4/3
15) -3/5
16) 2/4
Step-by-step explanation:
[tex](2x {}^{4} - 18x ^{2} + 3x - 4) \div (x ^{3} - 3x {}^{2} - 2)[/tex]
Answer:
(2x⁴-18x²+3x-4) = (2x+6)(x³-3x²-2) + (7x+8) .... remainder 7x+8
Step-by-step explanation:
(2x⁴-18x²+3x-4) = (2x+6)(x³-3x²-2) + (7x+8) .... remainder 7x+8
Use long division method
13 degrees below 0 pls
Answer:
-13
Step-by-step explanation:
The school cafeteria sells two types of wraps vegetarian and chicken the vegetarian wrap costs $1.00 and the chicken wrap costs $3.40 today they made $266.20 from the 103 wraps sold how many wraps sold were vegetarian
Answer:
35
Step-by-step explanation:
Let's make a system of equations for the vegetarian and chicken wraps; one for the total cost of them and one for the total amount sold.
Vegetarian wraps will be represented by variable v and chicken wraps will be represented by the variable c.
v + 3.40c = 266.20 v + c = 103Subtract these equations.
2.40c = 163.20Divide both sides by 2.40.
c = 68Substitute this value for c into the second equation.
v + (68) = 103Subtract 68 from both sides.
v = 35The number of vegetarian wraps sold amounted to 35 in total.
Answer :
The school cafeteria sold 35 vegetable wraps.Step-by-step explanation:
Let the count of vegetarian wraps be xLet the count of chicken wraps be y.Then for the count we have :
→ count of vegetarian wraps + count of chicken wraps = 103
→ x + y = 103......[Equation (i)]
Then for the cost we have :
→ ❲$1.00 * x❳ + ❲$3.40 * y❳ = $266.20
Dropping the dollar signs we get :
→ ❲1.00 * x❳ + ❲3.40 * y❳ = 266.20
→ x + 3.40y = 266.20.....[Equation (ii)]
Substracting equation (i) from equation (ii) we get :
→ 0 + 2.4y = 163.2
→ 2.4y = 163.2
→ y = 163.2 ÷ 2.4
→ y = 68
Now, subsitute the value of y = 68 in equation (i) we get :
→ x + y = 103
→ x + 68 = 103
→ x = 103 - 68
→ x = 35
Hence, the school cafeteria sold 35 vegetable wraps.Can y’all plz help me
Answer:
D. 10
Step-by-step explanation:
Assuming that <COA is a right angle, we can say that the two given angles are complementary
complementary angles are angles that add up to 90 degrees
this means we can create this equation: 3x + 46 + 14 = 90
so subtract 46 and 14 from 90: 3x = 30
divide both sides by 3: x = 10
Answer:
I think that it is letter D
Step-by-step explanation:
sorry if im wrong. but i hope this helps! :)
Type the correct answer in the box
The area of the figure is
Square units
Reset
Next
Answer:
132 units
Step-by-step explanation:
the area of triangle = 1/2 × 6 × 8 = 24 units >>>1
the area of the rectangle = 3 × 8 = 24 units >>>2
the area of rectangle(2) = (21-(9+3)) × 8 = 9 × 8 =72 units >>>3
the area of triangle(2) = 1/2 × 3 × 8 = 12 units >>>4
then , from 1 , 2 , 3 and 4 the area of the figure = 24+24+72+12 = 132 units
Answer:
it's answer is 132
hope it helps you
Can somebody please help with this? (Slope)
Answer:
the slope is m= 5/31 :)
pls help asap no trolls!!
Answer:
10
Step-by-step explanation:13+4>а>13-4
a>9
6
Show how to find the product 0.19 x 109.
Answer: 20.71
Step-by-step explanation:
Suppose you have a $15 coupon that can be used on any purchase over $100 at your favorite clothing store. The discounted price of a sports jacket is $203. What is the retail price of the jacket?
a.
$235.70
b.
$303.00
c.
$188.00
d.
$218.00
Which number has a 3 with a value that is 100 times greater than the value of 3 in 20.342 ?
1. 423.06
2. 307.18
3. 36.25
4. 108.173
Answer:
The second one
Step-by-step explanation:
Because 3 times 100 is equal to 300 and this is the answer choice either the number of the value with 300
if i run 160 meters 20 times in 2 hours how fast am i going
Answer:
1700 meters / hour
Step-by-step explanation:
160x20 = 3200
3200/ 2 = 1700
Classify the shape as precisely as possible based on its markings.
A) Rhombus
B) Parallelogram
C) Quadrilateral
D) Rectangle
Answer:
C??...
Step-by-step explanation:
Answer: I put b. Parallelogram
Step-by-step explanation:
what’s the answer? i need it asap please
Answer:
D
Step-by-step explanation:
Subtract 30 and 16. Cross out 0 and make it a 10 and 10-6= 4 then take 1 from 3 and make it a 2 and 2-1=1. It will all equal up to 14!
Answer:
8x+30+4x+18=180
12x+48=180
180-48=12x
132=12x
x=132/12
x=11
the diagram shows what tina had left from a yard of fabric. she now uses 2/3 yards of fabric for a project.how much of the original yard of fabric did tina have after the project
is 355.95 correct when it was 325 with 10.5% tax ?
Answer:
359.13
Step-by-step explanation:
Sales tax rate: 10.5%;
Price without tax: $325 dollars;
Amount of sales tax ≈ $34.13 dollars;
Price with sales tax ≈ $359.13 dollars;
Help me i don't understand this and i need a answer fast <3
Answer:
what grade r u in?
Step-by-step explanation:
Please give answer and graph
Answer:
x>10/4
Step-by-step explanation:
When you combine like terms, you get 10>4x and then divide by 4 and you get x>10/4. To plot this, you put an open point on 10/4 and highlight everything to the right of it with an arrow.
How many terms are in the expression (7*4) - 3x + x/5?
Answer:
(7*4) , -3x , x/5
Step-by-step explanation:
terms are sperated by plus and minus sign