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
egoroff_w [7]
2 years ago
9

Quick algebra 1 question for some points!

Mathematics
1 answer:
Kazeer [188]2 years ago
7 0
<h2>3)</h2>

\frac{y}{x}  =  \frac{4}{ - 3}  =  \frac{8}{ - 6}  =  \frac{12}{ - 9}  \\ this \: relation \: holds \: so \: y \: varies \\ directly \: with \: x

\frac{ 4}{3} m =  \frac{8}{ - 6}  \\ m =  \frac{ \frac{ - 8}{6} }{ \frac{3}{ - 4} }  =  \frac{8 \times 4}{6 \times 3}  =  \frac{32}{18}  = 2 \\ multipling \: by \: 2

<h2>2)</h2>

\frac{y}{x}  =  \frac{ - 40}{ - 0.5}  =  \frac{8}{2.5}  =  \frac{5}{4}  \\  \frac{y}{x}  = 80 = 3.2 = 1.25 \\ this \: is \: untrue \: so \: y \: is \: not \\ varying \: directly \: with \: x

no \: constant \: of \: variation

<h2>4)</h2><h2>\frac{y}{x}  =  \frac{21}{3}  =  \frac{31.5}{4.5}  =  \frac{38.5}{5.5 \\  }  \\  \frac{y}{x}  = 7 = 7 = 7 \\ y \: varies \: directl y\: with \: x \\ consant \: of \: var =  \frac{y}{x}  = 7</h2><h2>5)</h2>

\frac{y}{x}  =  \frac{30}{6}  =  \frac{35}{7}  =  \frac{96}{8}  \\  \frac{y}{x}  = 5 = 5 = 12 \\ y \: does \: not \: vary \: directly \: with \: x

You might be interested in
Just a lil some some so please help me
JulsSmile [24]

Answer:

I think its agree. I hope that helped

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
As part of the underwriting process for insurance, each prospective policyholder is tested for high blood pressure. Let X repres
xxTIMURxx [149]

Answer:

0.053

Step-by-step explanation:

This is a geometric distribution problem.

I'm geometric distribution problem,

E(X) = 1/p

Where;

E(X) is expected value and p is probability of success

Thus;

1/p = 12.5

p = 1/12.5

p = 0.08

Now, to find the probability that the sixth person tested is the first one with high blood pressure, we will use the probability formula in geometric distribution which is;

P(X = k) = qⁿ•p

q = 1 - p

q = 1 - 0.08

q = 0.92

Thus;probability that the sixth person tested is the first one with high blood pressure will be expressed as;

P(X > 5) = (0.92^(5)) × 0.08

P(X > 5) = 0.053

3 0
3 years ago
Please help me please i really need help please
kari74 [83]
Point Form: (1,-5)
Equation Form: x-1,y=-5
8 0
3 years ago
Read 2 more answers
On Sunday 440 people visited a museum that charges $9 for each child and $12.50 for each adult. If the museum earned $5,220 on t
alisha [4.7K]

Answer:

A) 360 adults

Step-by-step explanation:

c=quantity of child

a=quantity of adult

9c+12.5a=5220

a+c=440    then c=440-a

substitute for c

9(440-a)+12.5a=5220

3960-9a+12.5a=5220

reduce

3.5a=1260

a=360

3 0
3 years ago
Best explained and correct answer gets brainliest.
alexira [117]
Angle ABC=DEF then
 Side AB=DF
Side BC=EF
and Side CA=FD

So if side ac=DF 
side DF=6cm. 
5 0
3 years ago
Read 2 more answers
Other questions:
  • Evaluate these please [-4+9]<br> [-4]+9
    7·1 answer
  • I do not get it can someone pls help me ill apreciate it
    11·1 answer
  • The solutions to the inequality y s 2x - 4 are shaded on the
    12·1 answer
  • 5. find the missing value (s) so that the line segments are parallel.
    12·1 answer
  • At a shoe store there are 40 pairs of shoes. 8 pairs are yeezys.15 pairs of all shoes have velcro and 2 yeezys have velcro. How
    5·2 answers
  • In a class of 160 students, 90 are taking math, 78 are taking science, and 62 are taking both math and science. What is the prob
    5·2 answers
  • What is the measurement of this angle?
    5·1 answer
  • What is greater than 4.026
    15·2 answers
  • Which boat was farther from the dock at the beginning and which traveled more quickly
    9·2 answers
  • Luke portrays this time in Jesus’ ministry as very successful, but he starts giving hints of things to come. For instance, after
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!