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
madreJ [45]
3 years ago
10

Seven less than an unknown number ​

Mathematics
1 answer:
Sauron [17]3 years ago
7 0

Answer:

x-7

Step-by-step explanation:

unknown number = x

You might be interested in
Use y=2.5x+65 to find y when x=8 show work
harkovskaia [24]

Answer: y=85

Step-by-step explanation: Substitute all x's in the equation with 8. y=2.5(8)+65. And solve y=85

8 0
2 years ago
Read 2 more answers
PLS HELP!!!!What are the sine, cosine and tangent ratios of<br>angle W in the triangle below​
Ksju [112]

Step-by-step explanation:

Remember SOH-CAH-TOA:

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

The side adjacent to W is 4.  The side opposite of W is 3.  The hypotenuse is 5.

Therefore:

Sine = 3 / 5

Cosine = 4 / 5

Tangent = 3 / 4

7 0
3 years ago
If DF = 170, find the value of x. Then find DE and EF.<br> DE=3x + 20<br> EF=2x + 40
Julli [10]

9514 1404 393

Answer:

  DE = 86

  EF = 84

Step-by-step explanation:

We assume that point E lies on segment DF, so that ...

  DE + EF = DF

  (3x +20) +(2x +40) = 170

  5x = 110 . . . . . . . . . . . . . . . collect terms, subtract 60

  x = 22 . . . . . . . . . . . . divide by 5

  DE = 3×22 +20 = 66 +20 = 86

  EF = 2×22 +40 = 44 +40 = 84

7 0
3 years ago
Solve the equation 2x^2+15x^2
pishuonlain [190]

Answer: you can only add like terms, for example; 2x + 3x = 5x as they both have an x next to the numbers.

you cannot simplify 2 + 4x as they both don’t have an x next to them.

hence why, the answer to 2x^2 + 15x^2 would be 17x^2

Step-by-step explanation:

8 0
3 years ago
What equation results from completing the square and factoring x2+2×=9
Arturiano [62]
The answer should be A. If you need work I can show you. 
5 0
3 years ago
Other questions:
  • Graph that represents y=4^2+3
    8·1 answer
  • a recipe calls for 1/2 cup ingredient a for every 1 2/3 cups of ingredient b. you use 4 cups of ingredient a. how many cups of i
    13·2 answers
  • Need help with this question please!!
    12·1 answer
  • James was gathering wood for the
    13·1 answer
  • Please help
    5·1 answer
  • During a game of cards, Megan divided the deck of cards into 4 equal groups. She then placed (3 of
    14·1 answer
  • 5. Jake ordered a pizza with a 14 inch diameter. He wants to add more cheese on the
    6·1 answer
  • What is the scale factor from figure A to figure B?
    6·2 answers
  • Write the expression as the sine or cosine of an angle. Sin pi/3 cos pi/7 - sin pi/7 cos pi/3
    8·1 answer
  • Please solve the equation shown in the image below
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!