Answers
Answer:
cosФ is [tex]-\frac{\sqrt{7}}{4}[/tex] ⇒ B
Step-by-step explanation:
Let us solve the question using one of the identities of trigonometry
∵ sin²Ф + cos²Ф = 1
∵ sinФ = [tex]\frac{3}{4}[/tex]
→ Substitute it in the rule above to find cos Ф
∴ ([tex]\frac{3}{4}[/tex])² + cosФ² = 1
∴ [tex]\frac{9}{16}[/tex] + cosФ² = 1
→ Subtract [tex]\frac{9}{16}[/tex] from both sides
∴ cos²Ф = [tex]\frac{7}{16}[/tex]
→ Take √ for both sides
∴ cosФ = ± [tex]\frac{\sqrt{7}}{4}[/tex]
∵ Angle Ф lies on the second quadrant
∴ cosФ is a negative value
∴ cosФ = [tex]-\frac{\sqrt{7}}{4}[/tex]
∴ cosФ is [tex]-\frac{\sqrt{7}}{4}[/tex]
Related Questions
5) –3x – 3y=3
-5x + 2 y = 19
Answers
Answer:
x=31
Step-by-step explanation:
-3x-3(19)=3-5x+2
2x-57=5
2x=62
x=31
Have a good day
The average rainfall in inches in Miami from January to May is 1.61, 2.24, 2.99, 3.15, 5.35, and 9.68 while it is 2.24, 2.8, 3.03, 2.05, 2.09, and 6.69 during the same period in Tampa. Which city gets more rain and how much more?
Answers
Answer:
Miami gets 6.12 inches more rainfall.
Step-by-step explanation:
Given that the average rainfall (in inches) in Miami for 5 months are 1.61, 2.24, 2.99, 3.15, 5.35, and 9.68,
So, the total rainfall in Miami in 5 months,
R_M = 1.61 +2.24 +2.99 +3.15 +5.35 + 9.68 = 25.02 inches
and the average rainfall (in inches) in Tampa for 5 months are 2.24, 2.8, 3.03, 2.05, 2.09, and 6.69.
The total rainfall in Tampa in 5 months,
R_T = 2.24 +2.8 +3.03 + 2.05 + 2.09 + 6.69 = 18.9 inches.
The difference between the total rainfall in Miami and Tampa is 25.02-18.9= 6.12 inches.
The total rainfall in Miami is 25.02 inches while the total rainfall in Tampa in the same time period is 18.9 inches.
Therefore, Miami gets 6.12 inches more rainfall during the same time period.
In the first quadrant, you start at (7,4)
and move 4 units left
What point will you end on?
Answers
Answer:
7
Step-by-step explanation:
From O(7,4), when you move a point 4 units left, abscissa decreases by 4,i.e it becomes 3 and when you move a point 3 units up, ordinate increases by 3,i.e it becomes 7.
A tin of paint, 6 cm high, holds a half a litre of paint. How much paint would go into a similar
tin which is 12 cm high?
Answers
Answer:
One liter
Step-by-step explanation:
The first tin is 6 cm, holds 1/2 liter.
12 is double 6, because 6 x 2 = 12.
What you do to one side you have to do to the other, 1/2 x 2 = 1.
One liter of paint.
written in exponential notation, what is the answer to 10x10x10x10?
Answers
Answer:
Step-by-step explanation:
IN EXPONENTIAL NOTATION THAT IS 10^4
Omar drove 819 miles in 13 hours At the same rate, how many miles would he drive in 9 hours
Answers
Answer:
7384
Step-by-step explanation:
Kira studied data collected on the school basketball team for 1 season she noticed that a player on the team had 13 succesful free throws out of a total of 20
Answers
Answer:
Percent of Total number of successful throw = 65%
Step-by-step explanation:
Given:
Total number of successful throw = 13
Total number of throw = 20
Find:
Percent of Total number of successful throw
Computation:
Percent of Total number of successful throw = [Total number of successful throw / Total number of throw]100
Percent of Total number of successful throw = [13/20]100
Percent of Total number of successful throw = 65%
Georgia needed some batteries for her flashlights. She bought 4 batteries for $6.80. At that rate, how much would 10 batteries cost?
A
$0.68
B
$17.00
C
$21.70
D
$27.20
Answers
Answer:
B $17.00
Step-by-step explanation:
8 batteries are 13.60
6.80 split in half to become 2 is 3.40 and then I added 13.60 plus 3.40 to get 17.00
6=2(y+2). What does the y stand for?????
Answers
Answer:
1=y
Step-by-step explanation:
Lets solve first:
6=2y+4
-4 -4
______________
4=4y
÷4 ÷4
______________---
1=y
Hope this helps :3
Mrs. Oakes drove for 2 hours and went 50 miles. She then drove 3 more hours an
went 60 miles. What was her average speed for the whole journey?
Options
-22 miles per hour
-37 miles per hour
-42 miles per hour
-75 miles per hour
Can someone help me please
Answers
9514 1404 393
Answer:
22 miles per hour
Step-by-step explanation:
Her average speed for the journey is found by dividing the total distance by the total time:
(50 mi + 60 mi)/(2 h + 3h) = (110 mi)/(5 h) = 22 mi/h
Urgent please help!!
Answers
Answer:
The equation is 0.5x - 5= y
Just solve number two
Answers
9514 1404 393
Answer:
(3) h < k
Step-by-step explanation:
In this form, h represents the amount by which the square root function is translated to the left (3), and k represents the amount of translation upward (4).
The appropriate relation is ...
3 < 4
h < k
There are between 24 and 40 students in a class.
The ratio of boys to girls is 4:7
How many students are in the class?
Answers
Given:
There are between 24 and 40 students in a class.
The ratio of boys to girls is 4:7
To find:
The number of students in the class.
Solution:
Let the number of boys are girls are 4x and 7x respectively, where, x must be a positive integer because number of boys and girls is always a positive integer. Then, the total number of students is
[tex]\text{Total students}=4x+7x[/tex]
[tex]\text{Total students}=11x[/tex]
It means total number of students is multiply of 11.
Multiples of 11 are 11, 22, 33, 44, ... . So, multiples of 11 between 24 and 40 is 33.
Therefore, the total number of students in the class is 33.
Some people advised that in very cold weather, you should keep the gas tank in your car more than half full. irene's car has 6.7 gallons in the 15 -gallon tank on the coldest day of the year. Irene filled the tank with gas that cost $3.50 per gallon. How much did irene spend on gas?
Answers
Answer:
irene spent $23.45
Step-by-step explanation:
Cost of gas = $3.50 per gallon = 350 cents
Quantity of gas = 6.7 gallons
Amount spent = Cost * Quantity
Amount = 350 * 6.7
Amount = 2345 cents
Amount = $23.45
Last questions guys !! Go on my page for more chances for brainliest !!
Answers
Answer:
D
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
Can I have Brainllest? Please I need It?
The coordinates of then vertical of parallelograms WXYZ are W(-2,3) , X(-1,0) , Y(5,2) and Z (4,5) the slope of
I’ll give brainliest
Answers
Answer:
The slope of WX and WY
Step-by-step explanation:
For us to have a rectangle, the angles at the edges equal 90
What this mean is that the width and the length are at 90 degrees
Hence, we can say that they are perpendicular to one another
Thus, we can calculate the slopes of both to drive home our point
Hence, by calculating the slopes of WX and WY, We can proof that we have a rectangle
Natalie is a salesperson who sells computers at an electronics store. She makes a base pay amount each day and then is paid a commission as a percentage of the total dollar amount the company makes from her sales that day. Let P represent Natalie's total payments on a day on which she sells x dollars worth of computers. The table below has select values showing the linear relationship between x and P. Determine how many dollars worth of computers Natalie would have to sell in order to get paid $365 on a given day.
Answers
Answer:
9,500
Step-by-step explanation:
HELPPPPPPPP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE IT IS URGENT!!!!!!!!!!!!!!!!!!!!!!!!
Answers
So to get from 3 to 6 you multiply by two which you would also need to do to the price which is the same relationship because it is the correct answer whereas the 9 lbs you multiply by three and you would need to multiply the price by three as well and it is incorrect so it’s B
I’m not sure about the others though sorry
Kent has a $20 gift certificate for the
pet store. He chooses 2 angelfish
that each cost $3.45 and 3 clownfish
that each cost $4.82.
If he uses his gift certificate, how
much money will he need to pay?
Answers
Answer:
= $1.36
Step-by-step explanation:
[ 2(3.45) + 3(4.82) ] - 20
= [ 6.9 + 14.46 ] - 20
= [ 21.36 ] - 20
= $1.36
find the slope of the line y = -2x + 3
Answers
Answer:
Step-by-step explanation:
PLZZZ HELP!!!! HURRY READ WHAT I SAY
Answers
Answer:
omg
okay here:
"Gucci was founded in 1921 by Guccio Gucci in Florence, Tuscany. Under the direction of Aldo Gucci (son of Guccio), Gucci became a worldwide-known brand, an icon of the Italian Dolce Vita. Following family feuds during the 1980s, the Gucci family was entirely ousted from the capital of the company by 1993."
Solve for h. V= 3.14r^2h
Answers
Answer:
v-42ryoggjihfjcfjbfj
can anyone help with this equation ?
Answers
Out triangle-shaped pennants on the first day of school. If each pennant has a base of 5 inches and a height of 12 inches, what is the area of each pennant in square inches?
Answers
Answer:
Area of the penny = 30 square inches
Step-by-step explanation:
Out triangle-shaped pennants on the first day of school. If each pennant has a base of 5 inches and a height of 12 inches, what is the area of each pennant in square inches?
The pennant is triangular in shape. Hence:
Area of a Triangle = 1/2× Base × Height
Base of the pennant = 5 inches
Height = 12 inches
Area of the pennant = 1/2 × 5 inches × 12 inches
= 30 square inches
One batch makes 15 lemon bars and Josh ate 2. If Claire ate twice as many as him, how many lemon bars would be left from the batch? *
Answers
Answer:
There are 9 lemon bars left from the batch.
Step-by-step explanation:
One batch = 15 lemon bars
Josh: ate 2 lemon bars
[tex]15 - 2 = 13[/tex]
13 lemon bars remaining.
Claire: ate twice as many as Josh
Meaning: 2 × 2 = 4
[tex]13 - 4 = 9[/tex]
9 lemon bars remaining.
There are 9 lemon bars left from the batch.
Select all of the rigid motions below.
reflection
translation
dilation
rotation
station
Answers
What is f(5)?
A) -8
B) -1
C) 1
D) 8
Answers
Answer:
-1
Step-by-step explanation:
what are the coordinates of the circumcwnter of this triangle
Answers
Answer:
A: (-1,5) B: (-2,-1) C: (8,-1)
what is the range of this table
Answers
Answer:
-3, 0, 2, 5
Step-by-step explanation:
The range is all the y-values.
Question 5 (2 points)
The graph shows the distance a car traveled, y, in x hours:
What is the rise-over-run value for the relationship represented in the graph?
1) 1/35
2)2/17
3) 35
4) 40
Answers
35 / 1 = 35.
Ergo, the relationship is 35.
Answer:
The answer is 35
Step-by-step explanation: The other person who answered this got it correct and I took the test. :)