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
lisov135 [29]
3 years ago
13

U - 4u + 4 = 7 what is U

Mathematics
2 answers:
valentina_108 [34]3 years ago
8 0
Try to get the u’s on one side so for this to happen, you would subtract the four from both sides.
u - 4u = 7 - 4

combine like terms

-3u = 3

divide by -3

u = -1
BartSMP [9]3 years ago
6 0

Answer:

U = -1

Step-by-step explanation:

Combine U with -4U and you get -3.

-3u + 4 = 7

Subtract 4 from 7, you get 3.

Divide 3 by -3, you get -1.

U = -1

You might be interested in
Una ciudad tenía 8000 habitantes a final del año 2000. Cada año su población se incrementa en un 0.5 %
Digiron [165]

Answer:

The correct answer is 2030.

Step-by-step explanation:

To start we must analyze the information we have.

We know that a city has 8000 inhabitants and that each year this number increases by 0.5%. That means that <u>each year it has 40 more inhabitants</u>:

(8000 . 0,5) : 100 = 40

Having this information we could do a cross multiplication:

1 year ------- 40 inhabitants

x years ------- 81200

81200 = 40.x

x = 81200 : 40

x = 2030

In this way we can verify that the correct answer is 2030.

4 0
3 years ago
Convert the rectangular coordinates (-9, 3V3) into polar form. Express the angle
Whitepunk [10]

Answer:

(6\sqrt{3},\,\frac{5\pi}{6})

Step-by-step explanation:

The radius  r  can be found from the relationship

 r^2=x^2+y^2\\r^2=(-9)^2+(3\sqrt{3})^2\\r^2=81+27=108\\r=\sqrt{108}\\r=6\sqrt{3}

The point is in Quadrant II (-, +), so use the inverse cosine function to find the angle.

\cos{\theta}=\frac{x}{r}=\frac{-9}{6\sqrt{3}}\\\cos{\theta}=-\frac{9}{6\sqrt{3}} \cdot \frac{\sqrt{3}}{\sqrt{3}}\\\cos{\theta}=-\frac{9\sqrt{3}}{6\cdot3}\\\cos{\theta}=-\frac{\sqrt{3}}{2}\\\\\cos^{-1}\frac{-\sqrt{3}}{2}}=\frac{5\pi}{6}

See the attached image.

7 0
3 years ago
Can somebody please help me and how do you do this step by step and I need the formula for this please.
Ksivusya [100]

radius of ½ circle = d : 2

= 6in : 2 = 3in

Total area = Rectangle area + ½Circle area + Triangle area

= (l×w) + ½(π×r²) + (½×b×h)

= (10×6) + ½(π×3²) + (½ × (14-10) × 6)

= 60 + 14.14 + 12 = 86.14in

<h3 /><h3 /><h3>Answer : 86.14in</h3>

<em>See</em><em> </em><em>the</em><em> </em><em>bold</em><em> </em><em>one</em><em> </em><em>in</em><em> </em><em>line</em><em> </em><em>2</em><em> </em><em>of</em><em> </em><em>total</em><em> </em><em>area</em><em>,</em><em> </em><em>thats the</em><em> </em><em>formula</em><em> </em><em>of</em><em> </em><em>all</em><em> </em><em>shape</em><em>.</em>

8 0
3 years ago
Someone help me out please!! YOU WILL GET BRAINLIEST
sineoko [7]

nope they are not similar

as in order to say that triangles are similar their sides should be in proportion or angles to be equal but here

here only one angle is equal the other one is not

So they are not similar

8 0
2 years ago
Read 2 more answers
Given that<br> x:8=2:x<br> Calculate the positive value of x.
kow [346]

Answer:

x = 4

Step-by-step explanation:

x : 8 = 2 : x \\  \frac{x}{8}  =  \frac{2}{x}  \\  \\ cross \:  \: multiple \\  {x}^{2}  = 16 \\ x =  \sqrt{16}  \\ x = 4

4 0
3 years ago
Read 2 more answers
Other questions:
  • Do 0.3 and 3.0 have the same value. Explain.<br><br> Explain=10 points
    8·1 answer
  • An online clothing company decides to investigate whether offering their customers a coupon upon completion of their first purch
    15·1 answer
  • Maria is planning a party. Nancy, her friend, suggest that she should order three pizzas for every seven people. If she is expec
    8·1 answer
  • What is 50% of 42.88 ?
    13·1 answer
  • Andy has a collection of movie dvds. in andys collection 3/5 of the dvds are action 1/4 of the dvds are comedy. andy said that 4
    5·1 answer
  • 1.64/22 with estimation and an explanation?
    5·1 answer
  • Work out 10.3 % of 853.93 km Give your answer rounded to 2 DP.
    13·1 answer
  • Please need help on this one
    9·1 answer
  • Find (fog)(x) given f(x) = 2x2-x+1 and g(x) = 4x +3
    8·1 answer
  • PLEASE HELP!!!!!!!! ASAP
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!