Answer:
√2.
Step-by-step explanation:
sec ^2x = 1 + tan^2 x
(-3)^2 = 1 + tan^2x
tan^2 x = 8
tan x = +/- 2√2
tan x/2 = tanx / sec x + 1
= -2√2 / -3 + 1
= -2√2 / -2
= √2
We take the negative tan because tan is negative in the second quadrant.
The wheels on Darlene's car have on 11-inch radius. If the wheels are rotating at a rate of 378 rpm, find the linear speed in miles per hour in which she is traveling.
Answer:
The linear speed in which Darlene is traveling is 24.74 miles per hour.
Step-by-step explanation:
The wheel experiments rolling, which is a combination of translation and rotation. The point where linear speed happens is located at geometrical center of the wheel and instantaneous center of rotation is located at the point of contact between wheel and ground. The linear speed ([tex]v[/tex]), measured in inches per second, is defined by following expression:
[tex]v = R\cdot \omega[/tex] (1)
Where:
[tex]R[/tex] - Radius of the wheel, measured in inches.
[tex]\omega[/tex] - Angular speed, measured in radians per second.
If we know that [tex]R = 11\,in[/tex] and [tex]\omega \approx 39.584\,\frac{rad}{s}[/tex], then the linear speed, measured in miles per hour, in which Darlene is traveling is:
[tex]v = 11\,in\times \frac{1\,mi}{63360\,in} \times 39.584\,\frac{rad}{s}\times \frac{3600\,s}{h}[/tex]
[tex]v \approx 24.74\,\frac{mi}{h}[/tex]
The linear speed in which Darlene is traveling is 24.74 miles per hour.
Please, let this be a normal field trip [Wanda:] With the Friz? [Kids:] No way! [Arnold:] Oh!
Answer:
1. x= 5, x=1
2. x= -4, x=2
3. x= -6, x=7
4. x= -7, x=5
5. x= -9, x=0
Step-by-step explanation:
You do the X factoring-
1.
A B C
x²+6x+5
(A)(C) and B
(1)(5)=5 6
Then figure out what two numbers multiply to get 5
but also add to 6. In this case, it would be 5 and 1
5x1= 5 and 5+1= 6
so it is:
x= 5, x= 1
Hope this helps!
Lin’s father is paying for a $20 meal. He has a 15% off coupon for the meal. After the discount, a 7% sales tax is applied. He does NOT add tip
(3.2+4x)+(18.25+6x) Find the sum
Answer:
you can use m ath way or soc rat ic
the words are together.
Step-by-step explanation:
hope this helps !!
[tex] =\tt 3.2 + 4x + 18.25 + 6x[/tex]
[tex] = \tt4x + 6x + 3.2 + 18.25[/tex]
[tex]\color{plum} = \tt\bold{10x + 21.45}[/tex]
Therefore,
[tex]\color{hotpink}\tt 3.2 + 4x + 18.25 + 6x \color{plum}= 10x + 21.45[/tex]
I need help with math if you don't know the answer get out of the question and don't answer it and give the wrong answer or some link or even say "I don't know" or anything like that it's not fair to me cause it a waste of my points and time I will report your if you do that :) have a nice day and stay safe. PEOPLE WORK HARD FOR THERE POINTS IF YOU DON'T KNOW
2. Ava has to buy two pounds of cheese and a box of cereal. How much money does she spend?
3. (I can't think of one here I am so sorry q-q)
4. Sam has $20 to spend at the market. He buys 2 loafs of bread, and a carton of eggs, and a box of cereal. How much money does he left?
Please help if you want BROANLEIST!!!!
Answer:
1st one (A)
Step-by-step explanation:
1/2 is a half and if you look at the first one you can see one side is shaded which is 1/2.
Josephine wrote the numbers 1-100 and placed them in a bag. If she selects a number without looking, what is the probability that the number is greater than 78? Input your answer as a decimal or fraction.
Answer:
0.22
Step-by-step explanation:
The numbers that would be greater than 78 would include numbers after 78. that is 79, 80 ... 100
The total numbers greater than 78 is 22.
And there are 100 numbers in the bag . the probability of picking a number greater than 78 is 22/100 = 0.22
Jorge gives an equal number of marbles to 6 friends. Which could be the total number of marbles he gave to his friends?
Answer:
D. 60
Step-by-step explanation:
To find an equal number of numbers the sum has to be equal to 6*x.
Answer:
If he gave it all to his friends then its D. If it is counting him too then C.
Step-by-step explanation:
Rosa had $275. This table shows the items she purchased from the mall.
how much money did she had left over
I really need the help
If you randomly select a letter from the phrase "Terrace Park Wolves rule," what is the probability that you select a consonant? (Your answer must be in the form of a reduced fraction.)
The probability of selecting a consonant is 0.619
What is Probability?
The probability that an event will occur is measured by the ratio of favorable examples to the total number of situations possible
The value of probability lies between 0 and 1
Given data ,
The phrase is = "Terrace Park Wolves rule"
The number of letters in the phrase = 21 letters
The number of consonants in the phrase = 13 letters
Now ,
The probability of choosing a consonant from the given set of letters =
number of letters in the phrase / number of consonants in the phrase
Probability of choosing a consonant from the given set of letters = 13 / 21
Probability of choosing a consonant from the given set of letters = 0.619
Hence , The probability of selecting a consonant is 0.619
To learn more about probability click :
https://brainly.com/question/17089724
#SPJ5
Which statement correctly describes the diagram? Help it’s 8th grade 3x ams and I really need help ASAP , I already failed twice and this is my LAST attempt
Answer:
A
Step-by-step explanation:
the first part is definetly triangle b is a reflection of triangle a across the x axis i can't see the bottom part of the last answer but I'm pretty sure A would be correct because triangle c may be a rotation but it's most likely not a reflection of triangle a
In order to fence a garden, the rowan family needs 64 feet of lumber. The garden at the correas house will need to be 100% larger. How man feet of lumber will the correas need?
Answer:
128 feet of lumber
Step-by-step explanation:
In order to fence a garden, the rowan family needs 64 feet of lumber. The garden at the correas house will need to be 100% larger. How man feet of lumber will the correas need?
Step 1
We calculate how many feet larger
Hence:
64 × 100%
= 64 feet
Step 2
How many feet of lumber will the correas need:
= 64 feet + 64 feet
= 128 feet
Piper was out at a restaurant for dinner when the bill came. Her dinner came to $16. After adding in a tip, before tax, she paid $18.72. Find the percent tip.
Answer:
17%
Step-by-step explanation:
18.72 - 16.00 = 2.72
2.72/16 = 0.17 x 100 = 17%
Answer: 17
Step-by-step explanation:
please help lol
I do not understand :)
Answer:
66
Step-by-step explanation:
So what you need to do is add up each of the faces so 3 times 3 and 3 times 8. Then after you do that you take the 9 and 24 and add em together. Then multiply 33 by 2. I hope this helps :D
Find the circumference of the circle. 6
Answer:
2 x 6 x 3.14 = 37.68
A plane is making its descent to the airport. The distance from the plane to the front edge of a runway is 500 meters and an angle of depression of 40 degrees
To the
nearest hundredth, what is the altitude of the plane?
Answer:
im not at this stage yet
Step-by-step explanation:
bye felicia!
i need help!!
look at the file attached please!
Answer:
i believe that 0.66 is last, 1/3 and the 5/12 if not im so sorry if i was flase
13. If a recipe for cake says 2 1/2 cups of flour and Maria
wants to make three cakes, how many cups of flour
should she use?
1.6
2.6 12
3.7 12.
4.9
5.9 12
Help! Need by 10:30 to turn in and I'm confused!
When Anthony contracted the flu, he needed tissues and cough drops. Each box of tissues cost $1.69 and each bag of cough drops cost $1.19. By the time he was well again, he had gone through a combined 13 boxes of tissues and bags of cough drops, and he had spent $19.47. How many boxes of tissues did he use? How many bags of cough drops?
Answer:
21.97 tissues
15.47 cough drops
Step-by-step explanation:
13x1.69=21.97
1.19x15.47
5. Bridget answered 10 out of 15 questions correctly on her quiz. What percent of the questions did she answer correctly?
Answer:
10/15 x 100 = your answer :)
Answer:
67%
Step-by-step explanation:
Divide 10 by 15
Company A charges a flat fee of $20 and $24.95 per hour to install cable. Write an equation in slope-intercept form to represent the company's charges.
Answer:
y = 24.95x + 20
anyoneeeeeee knows we thissds
95 degrees (5x) degrees
Step-by-step explanation:
5x=95
X=95-5
X=90
Therefore ans is 90
What is the value of x if
2x + 5 = 19 ? ASAP
Answer:
2x+5=19
2x=19-5
x=14/2
x=7
Answer:
[tex] \large \boxed{x = 7}[/tex]
Step-by-step explanation:
Goal
Solve for x-term.Given
Equation[tex]2x + 5 = 19[/tex]
Step 1
Isolate x by subtracting 5 both sides.[tex]2x + 5 - 5 = 19 - 5 \\ 2x + 0 = 14 \\ 2x = 14[/tex]
Step 2
Divide both sides by 2 to make only x-term as our subject.[tex] \frac{2}{2} x = \frac{14}{2} \\ \frac{1}{1} x = 7 \\ 1x = 7 \\ x = 7[/tex]
Step 3 (Optional)
If you are not sure that the answer is correct or not, we can check the answer by substituting x = 7 in the equation.[tex]2x + 5 = 19[/tex]
Substitute x = 7 in the equation.
[tex]2(7) + 5 = 19 \\ 14 + 5 = 19 \\ 19 = 19[/tex]
The equation is true for x = 7. Hence, the answer is x = 7.
Find variables for this alegraic expression: -3x-2x+16+5-8+x
Answer:
2x+13
Step-by-step explanation:
collect like terms:
(3x−2x+x)+(16+5−8)
Answer:
-4x+13
Step-by-step explanation:
Let's simplify step-by-step.
−3x−2x+16+5−8+x
=−3x+−2x+16+5+−8+x
Combine Like Terms:
=−3x+−2x+16+5+−8+x
=(−3x+−2x+x)+(16+5+−8)
=−4x+13
Margie wants to collect 3,600 cans of food to donate to a community food bank. She plans to collect an equal number of cans for 4 months.
How many cans c should she collect each month?
What should I put in each box?
Answer:
90
Step-by-step explanation:
Nelson is building a rectangular ice rink for
the community park. The materials available
limit the perimeter of the ice rink to at most
250 feet.
Okay and what do you need to find??
The lengths of a triangle are given below is the triangle obtuse acute or right ? 11,12,15
Answer:
it is right
Step-by-step explanation:
Please help.
Algebra.
the area of triangle is 48 cm sq,its base is 12 cm. find its altitude
Answer:
its altitude is 8 cm
Step-by-step explanation:
1/2× base ×altitude =48
1/2×12× al =48
6×al =48
al = 8