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
mrs_skeptik [129]
3 years ago
11

I need step by step answers I don’t understand this

Mathematics
1 answer:
shtirl [24]3 years ago
5 0

Step-by-step explanation:

The slope-intercept form of an equation of a line:

y=mx+b

<em>m</em><em> - slope</em>

<em>b</em><em> - y-intercept (0, b)</em>

<em />

1.\ \text{Slope is}\ -2\to m=-2,\ \text{y-intercept is}\ -6\to b=-6\\\\\boxed{y=-2x-6}\\\\2.\ \text{Slope is}\ \dfrac{3}{7}\to m=\dfrac{3}{7},\ \text{y-intercept is}\ -1\to b=-1\\\\\boxed{y=\dfrac{3}{7}x-1}\\\\3.\ m=-8,\ b=11\\\\\boxed{y=-8x+11}\\\\4.\ m=0,\ b=-5\\\\\boxed{y=0x-5\to y=-5}\\\\5.\ m=-11,\ \text{y-intercept is}\ (0,\ 13)\to b=13\\\\\boxed{y=-11x+13}

You might be interested in
Find the measure of angle 1
Karo-lina-s [1.5K]

Answer:

123

Step-by-step explanation:

180-57=123

OK OK ok

6 0
3 years ago
Read 2 more answers
Simplify the expression below. -15r + 3(2s - 4r)
Sergio039 [100]
<span>-15r + 3(2s - 4r)
=</span><span>-15r + 6s - 12r
= -27r + 6s
   or
= 6s - 27r</span>
5 0
3 years ago
Humans have a normal body temperature of 98.6°F. A temperature, x, that differs from normal by at least 2°F is considered unheal
Alecsey [184]

Answer:

x\geq100.6 and x\leq 96.6

Step-by-step explanation:

It is given that the normal body temperature is 98.6^\circ F.

A temperature 'x' that differs from normal by at least 2^\circ F is considered unhealthy. So the inequality to represent such situation is,

\left | x-98.6 \right |\geq 2

It can be further written as,

x-98.6\geq 2 and x-98.6\leq -2

x\geq (98.6+2) and x \leq(-2+98.6)

x\geq100.6 and x\leq 96.6

So the inequality to represent such condition is x\geq100.6 and x\leq 96.6 .

5 0
3 years ago
Read 2 more answers
*College readiness * i’m lost on how you are supposed it set it up
Murrr4er [49]

The mean grade on the quiz was 88.

<u>Step-by-step explanation:</u>

We need to find the mean grade of the quiz using the information given.

The mean also known as the average is defined as the sum of data entries in a set divided by the number of entries in the data set.

The standard deviation gives the amount of variation or dispersion of data values present in a data set.

The given data are,

  • The standard deviation of the quiz, SD = 3.
  • The score 94 is exactly 2 standard deviations above the mean.

The above sentence represents that 94 is above the mean with 2 standard deviations.

⇒ 94 = Mean + 2 standard deviations.

We know the value for standard deviation. So substitute SD= 3 in the expression provided.

⇒ 94 = Mean + (2×3)

⇒ 94 = Mean + 6

To find mean, subtract 6 on both sides.

⇒ 94 -6 = Mean

⇒ Mean = 88

Therefore, the mean grade on the quiz was 88.

8 0
3 years ago
X/3 — 4 = (-20) ?can someone help me find the answer
Anna11 [10]

im really sorry but im in 6th grade.But id like to help if i new


8 0
3 years ago
Read 2 more answers
Other questions:
  • 0.3km ≈ how many miles
    13·1 answer
  • Which graph represents the solution set of the system of inequalities?
    14·1 answer
  • Show how 12 people can share an 8 piece chewy fruit worm. How many pieces would each person get.
    14·2 answers
  • 3t hreater or less than 3,000 lb
    7·1 answer
  • What is the equation of the line shown in this graph?
    12·1 answer
  • Pythagorean Theorem
    5·1 answer
  • PLEASE HELP!
    12·1 answer
  • Kelby has several pets. She has B birds, C cats, and F frogs.
    5·1 answer
  • Please help me asap :(((
    10·1 answer
  • Help please! marking brainliest
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!