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
iogann1982 [59]
2 years ago
12

Work out the value of each expression if x=4 and y=6 i 3x+9 ii 4x-y

Mathematics
1 answer:
Sergio [31]2 years ago
4 0

Answer:

i) 21 and ii) 6

Step-by-step explanation:

i) If X=4 and Y=6, then:

3X+9, replacing X

3(4) + 9

12 + 9

21

ii) 4X-Y

   4(3) - 6

    12 - 6

     6

You might be interested in
Work out the input for this function machine ​
Delicious77 [7]

Answer:

Answer is 12 isnt it

Step-by-step explanation:

12×4=48

48+9=57

4 0
3 years ago
On average a herd of elephants travels 10 miles in 12 hours<br>(picture included)
Tema [17]
For the first Q the answer is the first square on the left 10 miles divided by 12 hours = 0,83 miles

And the second Q goes with the last square 12 hours divided by 10 miles = 1.2 h which in minutes is 72 minutes or 1h and 12 minutes.
4 0
3 years ago
Read 2 more answers
Can someone please explain to me the difference between SAS and SSS in Geometry when dealing with triangle proofs?
ANTONII [103]

Hello from MrBillDoesMath!

Answer:   SAS = side - angle -side    congruence

              SSS  = side - side - side     congruence


Discussion :

In Plane Geometry,  identical triangles are said to be "congruent". There are several ways, depending upon the information you have, to prove 2 triangles are congruent.

In one approach ("SSS") if you can show that 2 triangles have identical side lengths,  then the triangles are congruent. (A triangle has 3 sides, hence "SSS" -- 3 S's; 3 sides, get it?)

In another approach ("SAS") if you can show that 2 sides, and the angle included between those sides, in one triangle are identical to the sides and included angle in another triangle,  then the triangles are congruent

It's easier to understand this with a picture or diagram than in words. Please review the SSS, SAS picture in your textbook

Regards, MrB

7 0
3 years ago
Finding Derivatives Implicity In Exercise, find dy/dx implicity.<br> x2 - 3 ln y + y2 = 10
Veseljchak [2.6K]

Answer:

\frac{dy}{dx}=-\frac{2xy}{2y^2-3}

Step-by-step explanation:

We are given that

x^2-3lny+y^2=0

Differentiate w.r.t x

2x-\frac{3}{y}\frac{dy}{dx}+2y\frac{dy}{dx}=0

By using formula

\frac{dx^n}{dx}=nx^{n-1}

\frac{d(lnx)}{dx}=\frac{1}{x}

\frac{dy^n}{dx}=ny^{n-1}\frac{dy}{dx}

\frac{dy}{dx}(-\frac{3}{y}+2y)+2x=0

\frac{dy}{dx}(-\frac{3}{y}+2y)=-2x

\frac{dy}{dx}=-\frac{2x}{-\frac{3}{y}+2y}

\frac{dy}{dx}=-\frac{2xy}{2y^2-3}

Hence, the derivative of function

\frac{dy}{dx}=-\frac{2xy}{2y^2-3}

8 0
3 years ago
Simplify, picture attached
Sergeu [11.5K]

Answer:

01/6

wd

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • What is 16/2 as a mixed number?
    12·2 answers
  • Marc can afford a $750 monthly mortgage payment. If the current mortgage rates are 5% and he wishes to have a 30-year mortgage,
    11·2 answers
  • Which one im very stuck
    11·1 answer
  • Pls help me with this
    5·2 answers
  • Identify the domain and range of each of the graphs below.
    15·1 answer
  • Write 4.48 as a mixed number in simplest form.
    12·2 answers
  • 1. 42<br><br> 2.70<br><br> 3.35<br><br> 4.84<br><br> Helpppppppppp
    10·2 answers
  • А) 6x = 7y<br> Can someone help
    8·1 answer
  • If x= 3, then the length of AB is
    12·1 answer
  • Write a multiplication statement and a division statement for each question
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!