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
vodka [1.7K]
3 years ago
10

Help me with this please

Mathematics
1 answer:
Marysya12 [62]3 years ago
6 0
All u have to do is find what variable will make each statement true, I'll do one so u would get what I mean,

61. x + 13.5 < 19, this could be anything under 19 since it's supposed to be greater, I chose 5 + 13.5 < 19 which is 18.5 < 19

The number goes from 13.5 to 19 you could do it like decimals, start it from 13 then go on like this, 13,13.5,14,14.5,15,15.5,16,16.5,17,17.5,18,18.5,& 19.
You might be interested in
An oil tanker is leaking at a constant rate per minute. After 11 minutes, 931 gallons of oil remain in the tanker. After 18 minu
bekas [8.4K]

The  function f(t) that describes this scenario will be A = -42.57t + 1399.28

  • Let the amount of oil remaining after time t be A
  • Let the time taken be "t"

This required linear expression will be given as A= mt + b

Writing the gallons of oil and the time taken as a coordinate point (A, t), these are given as (11, 931) and (18, 633)

m is the rate of change = 633-931/18-11

m = -298/7

m = -42.57

Get the intercept;

633 = -42.57(18) + b

633 = -766.29 + b

b = 1,399.28

Heence the  function f(t) that describes this scenario will be A = -42.57t + 1399.28

Learn more on functions here; brainly.com/question/17431959

5 0
2 years ago
Can please help!
sukhopar [10]
Answer:
equation is: width = area / length
width = 62.5 yd

Explanation:
For the first rectangle:
We have:
length = 75 yd and width = 60 yd
Therefore:
area = length * width 
area = 75 * 60
area = 4500 yd²

For the second rectangle:
We have:
area = area of first rectangle = 4500 yd²
length = 72 yd
area = length * width
width = area / length ............> The required equation
width = 4500 / 72
width = 62.5 yd

Hope this helps :)
5 0
3 years ago
Please help me with these problems
S_A_V [24]

Answer:

1.a=2

2.  C  x=2  and x=-3

Step-by-step explanation:

The standard form for the quadratic function is  

ax^2 +bx+c

so  we need to rewrite the function to be in this form

2x^2 -10 = 7x

Subtract 7x from each side

2x^2 -7x-10 = 7x-7x

2x^2 -7x-10 = 0

a =2, b= -7  c=-10


2.  The quadratic formula is

-b ± sqrt(b^2 -4ac)

----------------------------

2a


2x^2 + 2x=12

Lest get the equation in proper form

2x^2 + 2x-12 = 12-12

2x^2 +2x-12 =0

a=2  b=2 c=-12

Lets substitute what we know

-2 ± sqrt(2^2 -4(2)(-12))

----------------------------

2(2)

-2 ± sqrt(4+96)

----------------------------

2(2)

-2 ± sqrt(100)

----------------------------

4

-2 ± 10

----------------------------

4

-2 + 10               -2-10

-----------   and  --------------

4                             4

8/4   and -12/4

2  and -3

8 0
3 years ago
The qualitative counterpart of validity and reliability in quantitative research, which includes credibility, transferability, a
serious [3.7K]

Answer:

Trustworthiness

Step-by-step explanation:

For qualitative researchers, we have

1. Credibility

2. Transferability

3. Dependability

4. Confirmability and

5. Trustworthiness

While for quantitative researchers, we have

1. Internal validity

2. External validity

3. Reliability

4. Objectivity.

Trustworthiness is the qualitative research counterpart of validity and reliability.

4 0
3 years ago
What is the best way to Solve: 25 – 5x = 80
Art [367]
25 - 5x = 80
 + 5x         + 5x

25 = 5x + 80
- 80         -80

-55 = 5x

-55/5 = 11

x = 11 


Hope I helped!

Let me know if you need anything else!

~ Zoe          
5 0
3 years ago
Read 2 more answers
Other questions:
  • The sales tax for an item was $7.40 and it cost $370 before tax. find the sales tax rate. write your answer as a percentage.
    10·1 answer
  • Multiply.<br> (x + 7)(3x - 2)<br><br> ( please answer with <br> A. <br> B.<br> C.<br> D.
    9·2 answers
  • Consider the graph of f(x)=1/x-2
    7·1 answer
  • (3.8 x 10^5) + (5.7 x 10^5) answer in scientific notation
    14·1 answer
  • PLZ HELP ME ASAP!!! Line m is parallel to line p. m ∠ HEF = 39º and m ∠ IGF = 13º. Find the m ∠ EFG. Explain in detail how you k
    12·1 answer
  • Which pair of statements about the lengths of two sides of the triangle is true?
    14·2 answers
  • Help. answer is not D
    11·1 answer
  • Easton is a high school basketball player. In a particular game, he made two points and some three point shots.
    7·1 answer
  • Can you help please?
    11·1 answer
  • Somebody please help me?​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!