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
Juli2301 [7.4K]
3 years ago
7

2 questions here:

Mathematics
2 answers:
solmaris [256]3 years ago
6 0
<span>1. Make y the subject 
a) 4y=12x+18
y = 3x + 4.5

b) 2x=7-3y
3y = -2x + 7
y = -2/3x + 7/3

2.
a) what is the equation of the line which passes through both (-2,-4) and (6,16)

slope = (16 + 4)/(6 +2) = 20/8 = 2.5
y = mx + b
-4 =2.5(-2) +b
-4 = -5 +b
b = 1

equation
y = 2.5x + 1


b) what is the equation of the line perpendicular to y= 1/2X + 7 passing through point (3,9)

</span>y= 1/2X + 7
slope = 1/2

slope of line perpendicular = -2

passing through point (3,9)

y = mx + b
9 = -2 (3) + b
b = 15

equation

y = -2x + 15

Bingel [31]3 years ago
4 0
Hello here is a solution : 

You might be interested in
One third of the sum of a number and four
STatiana [176]

Answer:

\frac{1}{3} (n+4)

That is what the expression would be

4 0
3 years ago
PLS HELP ME 6, 7, and 8 (SHOW WORK!!) + LOTS OF POINTS + THANKS! + BRAINLIEST IF POSSIBLE!
julsineya [31]
6. 1 \frac{1}{2} = \frac{6}{4} since \frac{1}{4} = 4 feet. Then 6*4=24 So the answer is C

7. 1200 m/8 cm = C. 1 cm = 150 m 

8. A. Since 1 in = 3 feet then 6 inches = 18 feet (6*3=18) and 4 inches = 12 feet (4*3=12) so the dimensions of her room are 16'x12'.

B. A=lxw so 16*12= 216 m^{2}

Hope that helps
6 0
3 years ago
Read 2 more answers
Can someone please help me with these two please I'll appreciate it :)
s344n2d4d5 [400]
4.

\sqrt{64}=8\\\\8\dfrac17=8.14285714...\\\\8.\overline{14}=8.14141414...\\\\ \dfrac{15}2=7,5\\\\\\ \boxed{\ \dfrac{15}2\ \ \textless \ \ \sqrt{64}\ \ \textless \ \ 8.\overline{14}\ \ \textless \ \ 8\dfrac17\ }

5.

\sqrt{18}  doesn't belong with the other three because it is irrational number
The other three can be expressed as a ratio between two <span>integers.

-\dfrac{10}2=\dfrac{-10\ }2\\\\-13.4=-13\frac4{10}=\frac{-134}{\ 10}\\\\ 22.\overline7=22\frac79=\frac{205}9\\\\\\ \sqrt{18}=\sqrt{9\cdot2}=\sqrt9\cdot\sqrt2=3\sqrt2
</span>

7 0
3 years ago
A circle has a circumference of 289 pi. what is the radius
SIZIF [17.4K]
<span>2π289 = 1815.84 is your Answer</span>
6 0
3 years ago
Looking for the Domain and range
Nuetrik [128]

Answer:

Its ]-infinity,+infinity[ for both domain and range

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • A spinner with 4 colors is spun for a total of 50 trials. Yellow was selected 10 times. What is the experimental probability of
    9·2 answers
  • Ramona reads 18 books from the library each month for y months in a row. Write an expression to show how many books Ramona read
    11·1 answer
  • Which equation represents direct variation, if k represents the constant of variation? A) y = kx B) yx = k C) y = kx2 D) y = kxz
    10·2 answers
  • 2 different pairs of decimals whose sum are 8.69 one pair should involve regrouping
    11·1 answer
  • there are 8 teams in the league. Solve your inequality to determine how many soccer balls Seo-yeon should purchase. (My inequali
    15·1 answer
  • How many solutions does the system 2y=10x-14 and 5x-y=7 have ?
    5·1 answer
  • You have three 1 dollar bills and 2 10 dollar bills in your wallet. you select a bill at random
    8·1 answer
  • Solve for h -4(-6h - 7) = 9h + 10h - 7
    10·2 answers
  • Number 12 plzzzz and thank u
    12·1 answer
  • Solve the following equation<br><br> 3z + 14 = 5z - 18
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!