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
podryga [215]
3 years ago
10

Determine if (-2,5) is a solution of Of 3x+4y=14

Mathematics
1 answer:
Serggg [28]3 years ago
8 0
Well that's easy. Just plug in the numbers: 3*(-2)+4*(5)=14. So yes the solution is correct.
You might be interested in
The dataset Restaurant Tips contains data recorded from 157 restaurant bills at a bistro in New York over a two week period and
xz_007 [3.2K]

Answer: ($3.532, $4.166)

Step-by-step explanation:

Given : Significance level : \alpha: 1-0.90=0.10

Critical value : z_{\alpha/2}=1.645

Sample size : n= 157

Sample mean : \overline{x}=\$\ 3.849

Standard deviation : \sigma= \$\ 2.421

The confidence interval for population mean is given by :_

\overline{x}\pm z_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

\text{i.e. }\$\ 3.849\pm (1.64)\dfrac{2.421}{\sqrt{157}}\\\\\approx\$\ 3.849\pm0.317\\\\=(\$\ 3.849-0.317,\$\ 3.849+0.317)=(\$\ 3.532,\$\ 4.166)

Hence, the 0% confidence interval for the average tip given at this restaurant = ($3.532, $4.166)

5 0
2 years ago
What is the measure of < DBC
notsponge [240]

Answer:

∠D B C = 41°

Step-by-step explanation:

<u><em>Step(i)</em></u>:-

Given ∠ABC = 90°

 In diagram ∠D B C + ∠A B D = 90°

                       6 x+5 + 8 x +1 = 90

                       14 x + 6 = 90

                      14 x = 90 -6

                      14 x = 84

                    <em>     x = 6</em>

<u><em>Step(ii):-</em></u>

∠D B C = 6 x + 5 = 6 (6) +5 = 36 +5 = 41

<em>∠D B C = 41°</em>

<em>  ∠A B D = 8(6) +1  = 49°</em>

<em>∠D B C + ∠A B D =  41° + 49° = 90°</em>

3 0
2 years ago
Read 2 more answers
What does a, b, c, and w equal?
hodyreva [135]
w = 6*1266. 
a = 6*1200. 
b = 6*60. 
c = 6*6. 
Simplified,
w = 7596
a = 7200
b = 360
c = 36
5 0
3 years ago
What is the y-coordinate of the solution for the system of equations?
Snowcat [4.5K]

The answer is 14. y = 14 hope it helps.

8 0
3 years ago
Read 2 more answers
Solve:<br> 20&lt;2m-16<br> Please help
ICE Princess25 [194]
The answer I think answer -m7
6 0
2 years ago
Read 2 more answers
Other questions:
  • Easy question<br> Solve the proportion<br> x/16 = 10/36 <br> (round to the hundredths place)
    6·2 answers
  • Simplify : (√ + √ ) (√ − √) ( + )( 2 + 2 )
    6·1 answer
  • Find the greatest common factor for the list of terms <br> X^5, x^6, x^8
    8·1 answer
  • The difference of 4 minus 17 less the sum of 6 and 1
    6·1 answer
  • Justin bought 3 packages of hamburger meat. Each package contains 4.8 pounds of meat. If Justin makes hamburgers that are 0.55 p
    12·1 answer
  • Simplify −(3p53q3)−5.
    14·1 answer
  • What is the volume of the priam?<br> 5cm<br> 8cm<br> 152 cm
    11·2 answers
  • A rectangular solid has width w, a length of 7 more than the width, and a height that is equivalent to 15 decreased by 3 times t
    6·1 answer
  • Noah bought a new car costing $25,350 He took out a 5 year loan at a simple interest rate of 6.5% How much interest did Noah pay
    9·2 answers
  • Please solve and show your work
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!