Answer:
the length of the hypotenuse is 14 in
Step-by-step explanation:
Focus on the 30 degree angle. Recall that the sine of an angle is defined as
opposite side
sin Ф = ----------------------
hypotenuse
and that sin 30° is always 1/2.
7 in 1
Then sin 30° = ------------------- must equal -----
hypotenuse 2
After cross-multiplying this equation, we have 2(7 in) = (1)(hypotenuse),
so that the length of the hypotenuse is 14 in.
The binary operation is defined by a*b=(a+b)² - 2ab
Colulate the value of 3*4
5x + 8 =33 what is the x
Ellen has a bag with 3 red marbles and 2 blue marbles in it. She is going to randomly draw a marble from the bag 300 times, putting the marble back in the bag after each draw. 3 red marbles and 2 blue marbles What is the best prediction for the number of times that Ellen will draw a blue marble?
Answer:
120
Step-by-step explanation:
Blue marbles = 2
Red marbles = 3
Total marbles = 2 + 3 = 5
If a marble is drawn 300 times ;prediction for the number of times a blue marble will be drawn :
P(drawing a blue marble) = number of blue marbles / total number of marbles
= 2 /5 = 0.4
Predicted number of times blue is drawn in 300 selections :
300 * 0.4 = 120
Approximately 120 times
-70÷10=
pls help .....................
Answer:
-7
Step-by-step explanation:
Answer:
-7
Step-by-step explanation:
What is the solution set for-4x - 10 < 2?
Answer: -3
Step-by-step explanation:
-4x - 10 < 2
-4x < 12
x > -3
Dos cuadrados congruentes (iguales), ABCD y PQRS, tienen longitud de lado 15. Los cuadrados se traslapan y forman el rectángulo AQRD de 15 por 25. ¿Qué porcentaje del área del rectángulo AQRD esta sombreada? *
Answer:
20%
Step-by-step explanation:
De la imagen:
AB + PQ-PB = AQ
pero AQ = 25, por lo tanto:
15 + 15 - PB = 25
30 - PB = 25
PB = 25
La región sombreada es el rectángulo PBCS
Área del rectángulo PBCS = PB * BC = 5 * 15 = 75
El área del rectángulo AQRD = AQ * QR = 25 * 15 = 375
porcentaje del área del rectángulo AQRD que está sombreado = (área del rectángulo PBCS / área del rectángulo AQRD) * 100% = (75/375) * 100% = 20%
Find the y-intercept of the graph.
Answer: The y-intercept would be -2
Step-by-step explanation: To find a y-intercept you just need to find the point at which the line crosses the y axis (which is the vertical one.) We know its -2 also because of the unit amount of the graph itself. The 5 at the top of the y axis is at the 5th box which means that each vertical unit represents 1. This is how I know my answer is correct. I hope this answer has been of use to you and if you have further questions please do not hesitate to reach out :)
Help please
Brainiest answer to whoever is first
Answer:
The area is 137m.
Step-by-step explanation:
5 * 5 = 25
11 + 5 = 16
16 * 7 = 112
112 + 25 = 137m
Hope this helped! Have a nice day! Plz mark as brainliest!!!
-XxDeathshotxX
What is the correct inverse function for f(x)=In(3x)?
Answer:
f⁻¹(x) = eˣ / 3
Step-by-step explanation:
f(x) = In(3x)
y = In(3x)
swap x and y: x = In(3y)
solve y: eˣ = 3y
y = eˣ / 3
f⁻¹(x) = eˣ / 3
OMG PLZZZZZZ HELP ME I REALLY NEED HELP :'( EVERYONE WHO HELPS ME GETS IT WRONG PLZZZ HELP ME IM BEGGING YOU
Answer:
1st Picture: d = -16
2nd Picture: g = -13.8
Step-by-step explanation:
1st Picture: Divide both sides by -11 to balance both sides and get the answer.
2nd Picture: Subtract 1.2 from both sides.
Answer:
Question 6:
We have -12.6 = g + 1.2, so we move the 1.2 to the left side to get -13.8 = g because when you move a number you are essentially minusing that number so 1.2 becomes -1.2 .
Question 7:
We have 176 = -11d so we divide by -11 to get -16 = d.
Hope this helped!
A clinical trial tests a method designed to increase the probability of conceiving a girl. In the study 620 babies were born, and 341 of them were girls. Use the sample data to construct a 99% confidence interval estimate of the percentage of girls born. Based on the result, does the method appear to be effective?
Answer:
Based on the confidence interval, the method appears to not bring expected results
Step-by-step explanation:
The given parameters are;
The number of babies in the study, n = 620 babies
The number of girls in the study sample = 341 girls
The proportion of girls in the study sample, [tex]\hat p[/tex] = 341/620 = 0.55
At 99% confidence level, we have the critical z = 2.576;
The confidence interval is given by the following formula;
[tex]CI=\hat{p}\pm z\times \sqrt{\dfrac{\hat{p} \cdot (1-\hat{p})}{n}}[/tex]
Plugging in the values of the variables, we get;
[tex]CI=0.55\pm 2.576\times \sqrt{\dfrac{0.55 \times (1-0.55)}{620}} \approx 0.55 \ \pm 5.14680 \times 10^{-2}[/tex]
Therefore, 0.498532 < p < 0.601468
Based on the result of the confidence interval, we can be 99% sure that the true mean is between 0.498532 and 0.601468, therefore, given that the range includes a true mean of 0.5 or 50% probability of conceiving a girl, which is the percentage predicted by genetics, the method appears ineffective
A statement that contains = to compare two expressions is a
Answer:
An equation is a mathematical statement that two expressions are equal. The solution of an equation is the value that when substituted for the variable makes the equation a true statement. To achieve our goal, we use two principles of equality, the addition principle and the multiplication principle.
anyone need help with a subject mark me brainlist
Answer:
people cant mark you brainlest but you can mark people who answer your questions brainliest
Step-by-step explanation:
How many times would you have to add 1/3 with itself to get the answer to the multiplication problem below? 5×1/3
Answer:
5 times
Step-by-step explanation:
Given the multiplication problem :
5 * 1 /3 = (5*1) / 3 = 5/3
The number of times 1/3 will. Have to be added to itself to obtain 5/3.
To do this :
5/ 3 ÷ 1/3
5/3 * 3/1
= (5*3) / (3*1)
= 15 / 3
= 5
Hence, 1/3 will have to be added 5 times to itself
The equation y = 25x can be used to predict the height in feet, y, of the elevator after
1 seconds.
Find the height of the elevator when the time is 0 seconds.
Time (s), «
0 5 10 15
Height (ft), y
Answer:
y = 0 feet
Step-by-step explanation:
Given equation:
y = 25x
Where,
y = height (feet)
x = time (seconds)
25 = constant
Find the height of the elevator when the time is 0 seconds
y = 25x
y = 25(0)
y = 0 feet
I need help on this problem can someone help
-8 (y - 86) = -48
Answer:
y=92
Step-by-step explanation:
Divided both sides by the numeric factor on the left side, then solve.
y = 92
66.7 is about how many Americans that participated in the 2020 elections
Answer:
I think you have the wrong subject
An animal shelter has a ratio of cats to dogs that is 9 to 7. If the shelter has 18 cats, how many dogs would it have?
Answer: 14 dogs
Step-by-step explanation:
Given
The ratio of cats to dogs is 9:7
The shelter has 18 cats
Suppose shelter has x dogs
[tex]\Rightarrow \dfrac{9}{7}=\dfrac{18}{x}\\\\\Rightarrow x=\dfrac{18\times 7}{9}=14\ \text{dogs}[/tex]
It’s subtraction .Pls have a explanation math problem .
Answer:
4 11/14
Step-by-step explanation:
9 16/14 9 turns to 8 and u add 14/14 to 2/14 16/14 then subtract 5/14
-4 5/14
4 11/14
Answer:
5 4/14
Step-by-step explanation:
Ok so what we do is take the whole number away from the fractions (9 - 4)
And subtract the fractions
9/14 - 5/14 = 4/14 just remember NEVER ADD OR SUBTRACT DENOMINATORS. Now you should add the whole numbers 9 - 4 =5 now get them together 5 4/14. Theirs your answer
what is the name and type of arc of this circle
Step-by-step explanation:
minor
A container is shaped like a triangular prism each base of the container is an equilateral triangle with dimensions
Answer:
Thea answer is below
Step-by-step explanation:
A triangular prism is a polyhedron (a three dimensional shape) made of a triangular base and 3 faces joining corresponding sides.
The triangular prim has 5 faces of which two are triangular and three are rectangular. It also has 6 vertices and 9 edges.
The lateral surface area of a triangular prism = (a + b + c)h; where a, b and c are the sides of the triangular base and h is the height of the triangle.
Given that a = b = c = 6 cm, h = 15 cm. Hence:
Lateral surface area = (6 + 6 + 6)15 = 270 cm²
Answer:
something
Step-by-step explanation:
Evaluate
( 2/10 ) ^3
1. 1/5
2. 6/30
3. 8/1,000
Answer:
3. 8/1,000
( I hope this was helpful) >;D
Patricia’s dog, Max, weighs 6.75 kilograms. There are approximately 0.45 kilograms in 1 pound. Which measurement is closest to the number of pounds Max weighs?
Pls hurry...
Product Rule states: keep the base the same and do this to the exponents. Your
A). answer
B). multiply
C). subtract
Answer: B multiply
Step-by-step explanation:
ILL GOVE BRAINLIEST!! PLEASE HELP W THIS
Gina used 9 cups of sugar for every 6 cups of flour. At this rate, how many cups of sugar would Gina need per 1 cup of flour?
Answer:
1.5 cups of sugar for 1 cup of flour.
Step-by-step explanation:
9 cups of sugar/6 cups of flour= 1.5 of sugar
Answer:
1.5 cups of sugar
Step-by-step explanation:
set up a proportion:
9/6=x/1
solve:
6x=9
x=1.5
If JKLM is an isosceles trapezoid, find each value listed below.
PLEASE HELP!!
WORTH 30 PTS!!
Choose the first step in solving the following equation:
4(2x - 5) + 2x = 11
a 8x - 20 + 8x = 11
b 8x - 20 + 2x = 11
c 4(2x) + 2x = 16
d 4(4x - 5) = 11
e (2x - 5) + 2x = 7
Answer:
B) 8x - 20 + 2x = 11
Step-by-step explanation:
4(2x - 5) + 2x = 11
use pemdas
parenthesis comes first
open the parenthesis
4 * 2x - 4 * 5 + 2x = 11
8x - 20 + 2x = 11
Complete the Square
x2 + 10x +
Answer:
( + 10)
Hope this helps you out
John has 12 pounds of dog food and is going to separate it into 3/4 pond portions . How many portions of dog food will he have
Answer:
see below :)
Step-by-step explanation:
He will have 16 portions of dog food.
12 divided by 3/4 = 16
Answer:
He will have 16 portions of Dog Food.
Step-by-step explanation:
12 devided by 3/4 is 16
