Answer:[tex]98.13\ \text{or}\ 261.87^{\circ}[/tex]
Step-by-step explanation:
Given
[tex]\cos \beta =-\dfrac{\sqrt{2}}{10}[/tex]
As the value of cosine is negative, therefore the angle must lie in II or III quadrant
[tex]\Rightarrow \beta =\cos^{-1}(-\dfrac{\sqrt{2}}{10})\\\Rightarrow \beta=\cos^{-1}(-0.14142)\\\Rightarrow \beta =98.13^{\circ}\ \text{or}\ 270^{\circ}-8.13\\\Rightarrow \beta=98.13^{\circ}\ \text{or}\ 261.87^{\circ}[/tex]
what is half of 2/8 and 8/16
Answer: (not sure)
half of 2/8 is 0.125 and half of 8/16 is 0.25
if you want half of both together it's 0.625
Step-by-step explanation:
Each dance class is 3/4 hour. It takes a student 7 1/2 hours to learn a dance routine. Which
statement is true?
Answer:
option D
Step-by-step explanation:
7 1/2 divided by 3.4 = 10.
The student will need 10 dance classes to learn the routine.
find the circumference of the pizza use 3.14 the pizza is 7 inches
Answer:
45 inches
Step-by-step explanation:
C = (pi)(diameter).
Assuming that the radius of the pizza in this case is 7 inches, the diameter is twice that, or 14 inches.
Thus, the circumference of the pizza is C = (3.14)(14 inches) = 45 inches
approximately.
Find the product of 0.25 x 16
Answer:
4 is the answer
0.25*16 = 4
Step-by-step explanation:
product means multiplication..
what grade level is this?
Have a nice day!
Consider the following system of equations.
3x + 5y = 18
6x − 5y = 20
Decide which procedures eliminate the x variable and which eliminate the y variable. Drag and drop each procedure that will eliminate one of the variables into the appropriate category.
Subtract the second equation from the first equation.
Add the first and second equations. Multiply the first equation by −2; then add the two equations.
Divide the second equation by −2; then add the two equations. Subtract the first equation from the second equation.
Multiply the first equation by 2 then add the two equations.
Eliminate x Eliminate y
Answer:
Option B
On adding the first and second equations y can be eliminated
Step-by-step explanation:
The two equations are as follows
3x + 5y = 18 -- Eq (1)
6x − 5y = 20 -- Eq (2)
Adding equation 1 and 2, we get -
3x + 6x + 5y -5y = 18
9x = 18
x = 2
y = (18-3*2)/5
y = 12/5 = 2.4
Based on this data, what is a reasonable estimate of the probability that the next type of stir fry ordered is shrimp? Choose the best answer. Choose 1 answer: Choose 1 answer:
Answer: it is 0.28 C
Step-by-step explanation: I got it right in khan
The following are the last 10 run scores Colin got in cricket:
18, 9, 7, 35, 30, 21, 33, 12, 30, 31
a) Work out Colin's mean score.
b) Colin plays cricket again on Sunday. He gets 27 runs.
What is his new mean score?
Give your answers as decimals.
Answer:
a) 22.6
b) 23
Step-by-step explanation:
a)
Step 1: 18 + 9 + 7 + 35 + 30 + 21 + 33 + 12 + 30 + 31 = 226
Step 2: 226/10 = 22.6
b)
Step 1: 226+27 = 253
Step 2: 253/11 = 23
Identify the similar triangles
Answer:
QTS=STQ=STR
Step-by-step explanation:
ANSWER FOR BRAINLIEST AND 50 POINTS:
The high temperatures for the last seven days are: High Temperatures: 81, 78, 83, 89, 80, 87, 78
Find the MEAN of the temperatures. Round to the nearest tenths place.
A. 82.3
B. 89
C. 83
D. 78
Answer:
A.
mean=82.286
Rounded to the tenths place would be= 82.3
Step-by-step explanation:
The Mean is found by adding all of the values together
Then dividing it by how many values there are.
In this instance, all the values added up equal 576
576 now will be divided by how many temperatures are recorded.
576/7=82.286
82.286 Rounded to nearest tenth=82.3
The table shown below represents a function. Which of the following values could not be used to complete the table?
x
у
-10
-25
-5
5
10
15
20
-20
0-15
0-5
Answer:
20 -20 0-15 0-5
Step-by-step explanation:
The original graph
X Y-25 -10-5 105 15Hope this helps you :)
I need help no links 20 points
Answer:
t x 1/8 = n 1/8 = 0.125 in decimal form!!
Step-by-step explanation:
500(x – 3) = 5,000
What’s the value of x?
Answer:
13
Step-by-step explanation:
500(x-3)=5000
500x-1500=5000
500x=5000+1500
500x=6500 /:500
x=13
Answer:
13
Step-by-step explanation:
cuz
13-3=10
10x500=5000
Helen has a box of marbles.
12
of the marbles are yellow.
18
of the marbles are red.
The rest of the marbles are blue.
Helen pulls one marble out of the box at random, records its color, replaces it, and mixes up the marbles again. If she does this 200 times, how many blue marbles should she expect to pull out?
Answer:
I don't know because I don't know how many total marbles there are. If you know how many marbles there are in total that would help me figure out the problem.
Step-by-step explanation:
find the volume of the figure. (3.14 as pi)
Answer:
84
Step-by-step explanation:
7x3x4
,,,,,,,,,,,,,,,,
Answer:
84 in^3
v=length x width x height
Why do u need pi in this, there are no circle or sphere or cone, or whatever
hope that answers your question
good luck and stay safe
Step-by-step explanation:
NO LINKS!! PLSS HELP ME I WILL GIVE YOU BRAINLYEST!!
Mr. Hernandez bought 16 meters of
chain-link fencing. The section of his yard that
needs to be fenced is 50 feet long. Did Mr.
Hernandez buy enough fencing? Determine the
number of feet Mr. Hernandez still needs to buy
or how many extra feet he has purchased.
(1 meter = 3.28 feet.)
Answer:
well yes he has 2.4 extra
Step-by-step explanation:
1 meter is 3.28 feer so 3.28 x 16 is 52.4 and he only need 50.
hoped this hlepd and you have to give me brailyest. i just want to help...
Answer:
yes
Step-by-step explanation:
well we can just multiply the 3 with the 16
well now we have 48
add 28, 16 times which gives us 4.48
48+4.48 52.48
you have 2.48 feet left
and yes he has enough
now, about that deal.....
The given point (-3, -9) is reflected over X-axis
Answer:
The correct answer is (3, 9)
Step-by-step explanation:
The rule for reflecting over the X-axis is to negate the value of the y-coordinate of each point, but leave the x-value the same. For example, when point P with coordinates (5,4) is reflecting across the X-axis and mapped onto point P', the coordinates of P' are (5,-4).
A square photograph has a side length of x + 8. It is
surrounded by a frame that is 2 inches wide all the way
around. Write a simplified expression for the area of
just the picture frame.
Answer:
(x + 10)^2
Step-by-step explanation:
*It helps to draw a diagram for these types of questions
Side length of photograph: x + 8
Width of frame: 2 in.
Area of a square: s^2
A = ((x + 8) + 2)^2
= (x + 10)^2
Therefore the area of the photograph with the frame is (x + 10)^2
Answer:
8(x + 10) or 8x + 80Step-by-step explanation:
Area of the picture:
(x + 8)²Side of the photograph with the frame:
(x + 8) + 2*2 = x + 12Area of the frame:
(x + 12)² - (x + 8)² = (x + 12 + x + 8)(x + 12 - x - 8) = (2x + 20)(4) = 8(x + 10)or
8x + 80what is the volume of the rectangular prism?
PLZ I'M TIMED I WILL MARK BRAINLYEST!
Answer:
12.5 x 8 x 2 = 200 in ³
Step-by-step explanation:
Which statement about cones is true? If a cone is intersected by a plane parallel to the base, then the cross section is a triangle. If a cone is intersected by a plane parallel to the base, then the cross section is a triangle. If a cone is intersected by a plane parallel to the base, then the cross section is a square. If a cone is intersected by a plane parallel to the base, then the cross section is a square. If a cone is intersected by a plane parallel to the base, then the cross section is a rectangle. If a cone is intersected by a plane parallel to the base, then the cross section is a rectangle. If a cone is intersected by a plane parallel to the base, then the cross section is a circle.
Answer: If a cone is intersected by a plane parallel to the base, then the cross section is a circle.
Step-by-step explanation:Cones are circular
Fernanda is filling a cylindrical pot with cans of vegetable soup. The pot has a diameter of 15 in. and a height of 11 in. The soup can has a diameter of 3 in. and a height of 6 in. How many cans of soup will it take to fill the pot? Round to the nearest can.
Answer:
45 cans
Step-by-step explanation:
To find the volume of a cylinder, we need to find the area of the cross section, which in this case is π(radius)², and multiply it with the height of the cylinder
This means the pot has a volume of:
- pot has radius of 7.5in. as diameter is 2 x radius
π x (15/2)² x 11 = 618.75π in.³
The soup can has a volume of:
- soup can has radius of 1.5in. as diameter is 2 x radius
π x (3/2))² x 6 = 13.5π in.³
Divide the volume of the pot by the volume of the can to get how many cans of soup will it take to fill the pot:
618.75π in.³ ÷ 13.5π in.³ = 45.833... cans
The question states you need to round to nearest can which would be 45 cans, but personally, I thought you would always round up as 45 cans won't fill up the whole pot, but it's up to the question.
What is the slope of the line that contains the points (6,-1) and (2,4)
Answer:
-1.25
Step-by-step explanation:
y= -1.25x+6.5
What is 1.4. 106 written in standard notation?
O A. 140,000
B. 14,000,000
O C. 104,000
D. 1,400,000
E. 10,400,000
F. 1,040,000
What angles does this problem have.
Answer:they have many different angles!
Step-by-step explanation:
Answer:
take 48 and 58 and combined. also please look at my math
find the measure of the exterior angle
Answer:
[tex] \huge\mathfrak\pink{S} \huge\mathfrak\purple{o} \huge\mathfrak\blue{l} \huge\mathfrak\red{u} \huge\mathfrak\green{t} \huge\mathfrak\pink{i}\huge\mathfrak\purple{o}\huge\mathfrak\red{n}\huge\mathfrak\orange{➔}\ [/tex]
2a=a+10+44°[exterior angle of a triangle is equal to the sum of two opposite interior angle]
2a-a=54°
a=54°
.so
exterior angle=2×54°=108°is your answer
Please help ASAP
I will give brainleist and 100 extra points
Answer:
Possibly C, but im sorry if im wrong
Step-by-step explanation:
Missy Diwater, the former platform diver for the Ringling Brothers’ Circus has a mass of 68kg jumps from a height of 8m. What is her potential energy
Samir has a bag that contains pineapple chews, lemon chews, and lime chews. He performs an experiment. Samir randomly removes a chew from the bag, records the result, and returns the chew to the bag. Samir performs the experiment 45 times. The results are shown below:
A pineapple chew was selected 34 times.
A lemon chew was selected 8 times.
A lime chew was selected 3 times.
Based on these results, express the probability that the next chew Samir removes from the bag will be lemon chew as a decimal to the nearest hundredth
Answer:
0.18
Step-by-step explanation:
Answer:
.18
Step-by-step explanation:
The experiment occurred 45 times, lemon was selected 8 times.
Probability the next chew will be lemon:
8/45=0.17777... = .18
Use the law of cosines to find the value of X
Doug has a bag full of crayons. There are 6 red crayons, 7 blue ones, and 4 green crayons. Doug wants to color a blue sky. What is the probability that Doug will pull out a red crayon, put it back in the bag, and then get a blue crayon? Write your answer as a simplified fraction
Answer:
Blue 7/17 = Nearly 0.41
Red 6/17= Nearly 0.35
4/17= Nearly 0.23
Step-by-step explanation:
The Probability is 13/17 if im wrong then sorry i havent done this in a while
Help!!! I need this asap!
Answer:
x= 14.8
Step-by-step explanation:
√12²+8²= 4√13
56.3= sin-¹(12/4√13)
tan56.3= 21.6/4√13
x+8= √21.6²+4√13²
x= 14.8