Trig check my work please?

87,713 results, page 30

science and history

How did the apollo 11 space mission pave a way for 1.) technology 2.) science 3.) America 4.) space exploration Please note that we don't do students' homework for them. Once you have come up with a response to these questions, please re-post and let us know what you think. ...

science/MH

1)2000mg= 2g 2)104km= 0.104m 3)480cm= 0.40m 4)5.6kg= 0.56g 5)8mm= 0.8cm 6)5L= 0.5mL 7)198g= 0.198kg 8)75mL= 0.075L 9)50cm= 0.05m 10)5.6m= 5.6cm 11)16cm= 1.6mm 12)2500m= 2.5km 13)65g= 0.065mg 14)6.3cm= 0.63mm 15)120 mg= 0.12g Thank you, I just needed someone to check my work.

physics urgent!!!

A canoe of mass 70 kg with a paddler of mass 55 kg are in a river. If the river's current exerts a force of 15 N [E] while the paddler is paddling with an average force of 22 N [N38degreesW], find the acceleration of the canoe and paddler. Use both a component and ...

Trig

From a point A on the ground, the angle of elevation to the top of a tall building is 24.1 degrees. From a point B, which is 600 ft closer to the building, the angle of elevation is measured to be 30.2 degrees. Find the height of the building. PLEASE HELP ME!

Chemistry: check answers

Please check. Thank you. 2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O72– B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are best ...

math

Can anyone help with combining like terms? The question - 11 + 5t^2 + t + 6t. I don't have a clue were to begin. Wouldn't it be toget all the T's together? Would 5t^ go with it also since it is an exponent? I think so I am not sure but I think it would be that.Let me check ...

English

Writeacher, I left out the following sentences. Can you please check them, too? 1) How are things? I'm sorry we haven't been in touch with each other recently. I've had a busy month. We've been on holiday, and we only got back last week. 2) I spent two weeks in Spain with my ...

Marketing Management

What ae subway limited target group? Are you asking what the Subway sandwich company targets as its prime customers? Please clarify your question and we'll try to help you. Actually i am totally lost at what i am really looking for. This was suppose to be another person ...

science help pleaseeeeeeeeeeeeeeeee?

I did this question in this way but 2 of them correct ,is anyone can help me with this question ,many thanks. Choose the words or phrases that most accurately complete the sentences below. Drag and drop your choices into their appropriate spaces. One of the most effective ...

math

Please check my answers! Simplify the product. 7x(x+4) A. 7x^2+4 B. 7x^2+28x <<<< C. 8x+4 D. 8x+11 Simplify the product. 4x (2x^3 - 7x^2 + x) A. 8x^4-28^3+4x^2 <<<<< B. 16x^4-7x^2+4x C. 8x^4-7x^2+x D. 16x^4-3x^3+4x^2 I just started learning about ...

HELP!

Next year (sophomore year) I'm taking the following courses: Honors Algebra II/Trig Spanish III Health AP Biology Honors English AP World History Is AP Bio and world history hard? or no it's not just the exam. Please tell me because this is my first year taking AP.

Algebra 1--Please, help me!

1. It takes Dustin 2 hours to shovel the snow from his driveway and sidewalk. It takes his sister 3 hours to shovel the same area. How long will it take them to shovel the walk if they work together? A: Working together, Dustin and his sister can shovel the walk in 1 1/5 hours...

Physics. please help! due tomorrow!

Let W1 represent the work required to accelerate an object on a frictionless horizontal surface from rest to a speed of v. if W2 represents the work required to accelerate the same object on the same surface from a speed of v to 2v, then which one of the following is the ...

chemistry help~~~~ Please!!!

Sodium-24, t1/2 = 15.0 hr, can be used to study the sodium balance in animals. If a saline solution containing 25 μg of 24^Na is injected into an animal, how long can the study continue before only 1 μg is left? Show work please!

Trig/Pre-Calc

Could someone please help me on this problem. I'm really confused, and this assignment is due tomorrow. Solve the logarithmic equation algebraically. Approximate the result to three decimal places. log4x-log4(x-1)=1/2 To start off the equation, I know you would do the ...

Literature

i have to write an evaluative essay on a work of literature. i have chosen Hiroshima; The Noiseless Flash. in this essay i will write my own statement about the value of a work of literature ( ? ) and then provide reasons why your evalutation is correct and evidence to suport ...

I need help with my eniglish homework I was absent

I have been absent and I do not get my English homework! ¢¾Sandra Thank you for using the Jiskha Homework Help Forum. That alone does not help us. What sort of work are you doing in your English class? Anytime you are absent your teacher should give you list of what you need...

Precalculus

So for our review, our teacher posted the answers to the review online. I do the problem and check my work with the review, but I am questioning number 8. Here is the problem with the answer: prntscr.c0m/4rnpcn How does it equal 16? I am so clueless! G * F (1)? I got f(1)=6 ...

pre calculus

can you check my work? find two sets of parametric equations for the given rectangular equation x+y^2=4 x=-y^2+4 y=-t^2 x=-t^2+4 x=-t^3 y=-t^3+4 Find a polar equation of an ellipse with its focus at the pole an eccentricity of e=1/4 and directrix at y=4. answer: √(x^2 + y^2...

trig

We are doing trig identities in school. I need help with these five: 1.1+sinx/1-sinx=cscx+1/cscx-1 2.tanx+sinx/1+cosx=tanx 3.sec^2x/sin^2x=1/sin^2x+1/cos^2x 4.tan^2x/1+tan^2x=1-cos^2x 5.sinx-sin^3x/cos^3x=tanx

chem/some1 check my work plz.

air bags actived when a severe impact causes a steel ball to compress a spring and electrically ignite a detonator cap. this causes NaN3 to decompose explosively according to the following reaction: 2NaN3(s)=2Na(s)+3N2(g) what mas of NaN3 must be reacted to inflate an air bag ...

Math-check my answers!!!

Check my answers please!!!! I really don't know how to do these but I tried my best 1. Simplify. 3x^2+ 5x-5x^2-4x+5-2 A.-8x^2-9x+3 B.2x^2+x+3 C.-2x^2-9x+3*** D.-2x^2+x+3 2. Add or Subtract.(8x – 2y) + (3x – 4y) A.11x+8y B.4x-y C.11x-6y*** D.5x+2y 3.(5x^2-4x-1)-(-4x^2-4) A...

Trig application

Can anyone help me with this problem? I'm so confused. Please help. A security camera is placed 27 feet from the counter at a store. The counter is 18 feet long and the camera is placed 4 feet from one end. What angle, to the nearest degree, should the camera rotate through so...

Algebra I

I'm stuck on this problem please help me find the range of this equation y = (x^2 - 4)/(x^2 - x - 12) I know that it is [1/3,-infintiy]U[?,infinity] yes I'm having trouble with that ? At first I was like ok there should be a horizontal asymptote at y=1 there is in calculus ...

math(check answers please)

please check my MATH. .Mr.jensen bought 2 2/3 gallons of gasoline yesterday.today he bought 3 1/2 more gallons.how many total gallons of gasoline has he bought? A.5 3/5 b.5 3/6 c.6 1/6 d.5 1/6(i picked this) Mrs.peters bought 7 1/2 yards of fabric.She needs another 4 7/8 yards...

english

Write S if the sentence is simple .Write C if the sentence compound. 1) Paul plays on the basketball team and works part time at the grocery store. Compound 2)He is an assistant manager in the deli.Simple 3) The store manager hired him as a bagger,but Paul wanted more ...

chemistry

For a certain reaction at constant pressure, ∆H = -15kJ, and 22 kJ of expansion work is done on the system. What is ∆U for this process? So I know ∆= ∆U + Work flow If work is being done on the system, shouldn't work flow be positive? So I assumed it ...

physics please help

How many grams of carbohydrate does a person of mass 75 kg need to metabolize to climb five flights of stairs (15 m height increase)? Each gram of carbohydrate provides 17.6 kJ of energy. Assume 10.0% efficiency—that is, 10.0% of the available chemical energy in the ...

L.A.

Which of the following statements about "life without gravity" explains why it is a expoistory essay. 1. It is a short work of nonfiction that does not express the writers opinion 2. It is a short work of nonfiction that uses examples to make its points 3. It is a short work ...

physics

1)Under ideal conditions, if 300 J of work are required tolift a mass to a certain height, the same mass should provide ___ J to do work as it falls back to Earth. Can you please comment as to whether my answer of 300 J is correct? 2)___ is conserved during an inelastic ...

6th Grade Math

Carmen received some money for her birthday on Friday. That night, she took her friend out to dinner. She spent half of her check for dinner. Then she tipped the waiter $6. The next evening she went to dinner alone, she spent half of the money she had left, and she tipped the ...

Math ; please please help.

1. Explain in detail how to determine the value of the independent variable in a quadratic relation if the value of the dependent variable is known. Please check my answer - You would substitute the value for the dependent variable, then you would solve for the independent ...

Math

Please help me with the following by checking my answer. The length of the hypotenuse of an isosceles right triangle is √6 inches. How long, in inches, are the legs of the triangle? A. 3 B. 6 C. √3 - (This is my answer.) D. √6 I am not sure on my answer, ...

7th grade science Ms. Sue please check

Hi! Can you check my answers please and I need help on 4 and 5 I cannot find the answers!!!! Please help! 2. _____ transports materials within a cell and between cells and makes up ______ percent of most organisms. (1 point) Fat; 60 Protein; 40 Sugar; 75 Water; 50 3. Which of ...

trig

tanx=cotx

trig

what is the perimeter of a circle

trig

evaluate log3 27

math algebre2 and trig

5>4b+9>17 - -

trig

Graph y=-sin2(x-(3.14/4))

Trig

what is 2 pi over 1/5 reduce to?

trig

What is the projection of (2,6) onto (-1,5)?

trig

||v|| = 8 u = <5, 6> find the vector

trig

sin^2è + 2sinè +1 =0

trig

answer of 17(3/5 * 2/3 - 1 divided by 17/8)

ALGEBRA 2 W/TRIG

What is the slope for y=3/4x+1?

trig

sinL=6/7 L(alfa)=?

trig

4=log[7]2401

trig

graphs of trignometry

trig

what is the value of the discriminant x^2-9

alg and trig

6x^3-5x^2+15x+5 / 2x^2-x+3

Trig

sin^2x/sec^2x-1

trig

4cos(2x)+2cos(x)+3=0

trig

3sin(2x)-2cos(x)=0

trig

2cos(theda)-"2=0

trig

sin^-1(sin5pi/6)

trig

How do you solve csc2x + 1 = 0

trig

y = sin (3x-2pi)

trig

2cos^2+sin=1

trig

what is the reference angle for 17 pi/12?

trig

log4+log(x-7)=2

trig

log(x-15)-2=-logx

trig

Cos(2x+30)-Sin(3x-20)

trig

Graph y=-2sin(x/2-pi/2)+3

trig

evaluate cos 12*pi

Trig

cos(-11pi/12)

Trig

Sec (23π/6)

trig

SinA =0.5 cosA=?

Trig

sin/tan = ?

Trig

The radius of: (x+2)^2 + (y-3)^2 =9 is 3 is this correct?

trig

express 4/5-radical 13

trig

5pi/7 what quadrant is it in???

trig

tan-5n over 3

trig

Graph f(x)= second(2x+3.14/4)

trig

how to do root3 value

trig and algerba

6+7(t - 1) = 5(t + 7) + 8 what does t equal

Trig

How do you do this? 1-sin^2x/csc^2 x-1

trig

5sin(2x)+4cos(x)+0

trig

5sin(2x)+4cos(x)=0

trig

2sin^2x-1=0[0,2pi)

Trig

Why does 11.4(7pi/18)=133pi/30 ?

trig

what is the amplitude of f(X)=-6sin(3x-7)

Trig

What is the supplement of 3pi/5?

Trig

Find the supplement of pi/6

trig

cos(π-x)=

trig

U=5i+11j and V=2i-3j, find 2U-7U

math trig

ln(2x-5)= 4 how do i this problem? thanks!

trig.

How is it that sin90 is negative?

trig

what is the value of sin 70

algebra 2 trig

8/2+√6

trig

cos^2 A/ 1+sin A

TRIG

Sinxtanx = sec x

trig.

8x^3+4x^2-4x solution sets

trig

If cot x = .78, what is tan x?

trig

solve tan2x = -28/45 Thank you

trig

10sinB+5 = sinB+5

trig

cos è = 0.9659 A = ? H = 20

Trig

Sin^2 b(1 +cot^2 b) =1

trig

Sinxcosy(cotxtany-1)

trig

Sinxcosy(cotxtany-1)

Trig

(x+1)(x-4) is greater than or equal to (x-2)^2

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