1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lera25 [3.4K]
3 years ago
15

Can someone help me?

Mathematics
1 answer:
Ann [662]3 years ago
7 0

Answer:4/3

Step-by-step explanation:

2/6=x/4 cross multiply

6x=8 x=8/6 =4/3 Divide and simplify

You might be interested in
What is the factored form of b3 − 1,000?
DochEvi [55]

Kindly, check the attachment below to see the answer.

7 0
2 years ago
Read 2 more answers
A flat circular plate has the shape of the region x squared plus y squared less than or equals 1x2+y2≤1. the​ plate, including t
vredina [299]

You're looking for the extreme values of x^2+3y^2+13x subject to the constraint x^2+y^2\le1.

The target function has partial derivatives (set equal to 0)

\dfrac{\partial(x^2+3y^2+13x)}{\partial x}=2x+13=0\implies x=-\dfrac{13}2

\dfrac{\partial(x^2+3y^2+13x)}{\partial y}=6y=0\implies y=0

so there is only one critical point at \left(-\dfrac{13}2,0\right). But this point does not fall in the region x^2+y^2\le1. There are no extreme values in the region of interest, so we check the boundary.

Parameterize the boundary of x^2+y^2\le1 by

x=\cos u

y=\sin u

with 0\le u. Then t(x,y) can be considered a function of u alone:

t(x,y)=t(\cos u,\sin u)=T(u)

T(u)=\cos^2u+3\sin^2u+13\cos u

T(u)=3+13\cos u-2\cos^2u

T(u) has critical points where T'(u)=0:

T'(u)=-13\sin u+4\sin u\cos u=\sin u(4\cos u-13)=0

(1)\quad\sin u=0\implies u=0,u=\pi

(2)\quad4\cos u-13=0\implies\cos u=\dfrac{13}4

but |\cos u|\le1 for all u, so this case yields nothing important.

At these critical points, we have temperatures of

T(0)=14

T(\pi)=-12

so the plate is hottest at (1, 0) with a temperature of 14 (degrees?) and coldest at (-1, 0) with a temp of -12.

4 0
3 years ago
PLZ, help me with this question.
Korolek [52]

Answer:

Intensity

Step-by-step explanation:

In physics, intensity of radiant energy is the power transferred per unit area, where the area is measured on the plane perpendicular to the direction of propagation of the energy.

8 0
3 years ago
Read 2 more answers
I need your help guys !!!!!!!!
Ber [7]

\bold{\huge{\blue{\underline{ Solution}}}}

\bold{\underline{ We \: have \:given \: that, }}

  • <u>Distance </u><u>between </u><u>the </u><u>house </u><u>and </u><u>tower </u><u>is </u><u>3</u><u>5</u><u> </u><u>m</u>
  • <u>The </u><u>height </u><u>of </u><u>the </u><u>tower </u><u>is </u><u>6</u><u>0</u><u> </u><u>m </u>
  • <u>The </u><u>height </u><u>of </u><u>the </u><u>house </u><u>is </u><u>2</u><u>5</u><u> </u><u>m</u>

\bold{\underline{ Now}}

  • <u> </u><u>Height</u><u> </u><u>of </u><u>the </u><u>house </u><u>is</u><u> </u><u>2</u><u>5</u><u>m</u>

\bold{\underline{ So, }}

\sf{ CE = 25m }

<u>Therefore</u><u>, </u>

\sf{ AB = AD - CE }

\sf{ AB = 60 - 25  }

\sf{ AB = 35 m }

<u>Now</u><u>, </u><u> </u><u>In </u><u>Right </u><u>angled </u><u>ABC</u>

\bold{tan Φ =}{\bold{\frac{ AB}{BC}}}

\bold{tan Φ =}{\bold{\frac{ 35}{35}}}

\bold{ tan Φ = 1 }

\bold{ tan Φ = 45 °}

\sf{\red{Hence, \: The \:angle \:of \:depression\: is \:45°}}

7 0
2 years ago
SSC's Tuatara is the fastest car in the world with 331 miles per hour
Kipish [7]

Answer:

5.517miles/min

Step-by-step explanation:

331/1h

=331/(1*60) because 1h=60min

7 0
3 years ago
Other questions:
  • Fernando poured water from one-pint bottles into a three-gallon bucket. How many pints of water could the bucket hold? 
    13·2 answers
  • How many cubes with side lengths of 1/3 cm does it take to fill a rectangular prism with dimensions 1cm, 2 2/3cm and 2/3cm?
    14·1 answer
  • Find the markup on the following item. A candy bar costing $0.52 and selling for $0.79. 0.27 0.41 0.66 1.31
    10·2 answers
  • What is 80 percent of 90
    6·2 answers
  • Simplify (4-2)^5<br><br>A. 4^10<br><br>B. 4^3<br><br>C. 1/4^3<br><br>D. 1/4^10​
    7·1 answer
  • Which of the following ratios is equal to 14 : 21?<br><br> (2 : 3) (1 : 3) (2 : 5) (1 : 2)​
    14·2 answers
  • -6x+4y=-18 -x-y=2 solve by subsitution
    12·1 answer
  • A team of explorers going to South Pole expect to travel 1014.15km in total the team expect their average sped for expidition n
    11·1 answer
  • I need help!!!!<br><br> The square below has the given side lengths. x is positive
    15·2 answers
  • Please answer! thanks
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!