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
UNO [17]
3 years ago
7

Вычислите: 1) 1/2×2/3×3/4-2/3×3/4×4/5-3/4×4/5×5/6​

Mathematics
1 answer:
malfutka [58]3 years ago
4 0

Answer:

= -13 / 20

Step-by-step explanation:

You might be interested in
1+ 10a-5a need help on 6th grade algebra
Eva8 [605]
The answer is: 1 + 5a ; or, 5a + 1 .
______________________________
Given the expression:
______________________________
<span>1 + 10a − 5a ; 
________________
→ We identify the "like terms" ; 
___________________________
→ which are "10a" and ( "-5a") ;
____________________________
→ 10a </span>− 5a = 5a ; 
_________________________________
→ 1 + 5a ; is the most simplified; or write the expression as: 5a +1 .
_________________________________
6 0
3 years ago
Change general form of hyperbola into standard: -x^2 + y^2 -16x + 14y - 251 = 0
topjm [15]

Answer:

(y+7)²/364 - (x+8)²/364 = 1

Step-by-step explanation:

This is the standard form of a vertical hyperbola (y-k)²/a² - (x-h)²/b² = 1

so, (y²+14y+?) - (x²+16x+?) = 251

(y²+14+49)-49 - (x²+16x+64)-64 = 251

(y+7)² - (x+8)² = 251 + 49 + 64

(y+7)² - (x+8)² = 364

(y+7)²/364 - (x+8)²/364 = 1

7 0
4 years ago
An object is moving at a constant velocity of 10.0 m/s. How far (what distance) will it travel in 30.0 seconds? Show work.
pychu [463]

Answer:

300 miles

Step-by-step explanation:

10 mile per second

30 second is 10 x 30

10 x 30 = 300

5 0
4 years ago
Read 2 more answers
Amber is saving her money for new figure skates. They cost $149.99. She gets $20 a week allowance and babysits for 2 hours a wee
maksim [4K]
She gets $20 per week allowance.......she babysits 2 hrs a week at 5.50 per hr.....so she gets (2 * 5.50) = $ 11 per week from babysitting...so she is making a total of (20 + 11) = $ 31 per week. But she pays 2.50 a week for school lunch.......so she is basically making (31 - 2.50) = 28.50 per week.

28.50w < = 149.99
w < = 149.99 / 28.50
w < = 5.26 weeks....but if u need it rounded, it would take her approximately 6 weeks....because 5 weeks wouldn't be enough time
7 0
3 years ago
Help me please! <br><br> a = 3, b = 5, and c = 7. What is m&amp;Bº to the nearest tenth?
Anastaziya [24]

Answer: m∡B°=38,2°.

Step-by-step explanation:

a=3,  b=5,  c=7  ∡B°=?

b^2=a^2+c^2-2*a*ccosB^0\\2*a*c*cosB^0=a^2+c^2-b^2\\cosB^0=\frac{a^2+c^2-b^2}{2*a*c} \\cosB^0=\frac{3^2+7^2-5^2}{2*3*7} \\cosB^0=\frac{9+49-25}{2*3*7} \\cosB^0=\frac{33}{42} \\cosB^0=\frac{11}{14}\\

m∡B°=arccos(\frac{11}{14})

m∡B°≈38,2°.

Good luck!

4 0
2 years ago
Other questions:
  • What is the median of this set of data values? 13 ,14, 17,18, 21, 23, 26, 28
    10·1 answer
  • Each of the following correctly match an English phrase with a mathematical expression
    8·1 answer
  • I put a picture of the question
    5·1 answer
  • I will give Brainliest to whoever answers this correctly.
    14·1 answer
  • I need this asap so can someone answer
    8·1 answer
  • What is the slope of the line that passes through the points
    15·1 answer
  • Whats the slope of the line that contains (-2, -2)
    6·1 answer
  • Need help! This is due very soon!
    14·1 answer
  • Figure ABCD has verticies A(-4, 1) B(2, 1) C(2, -5) D(-4-3). What was the area of Figure ABCD.
    7·2 answers
  • Can someone please help me with the unanswered problem in the attachment?:[​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!