Find the -intercept and -intercept of the line.3x-7y=-21

x-intercept
y-intercept

Answers

Answer 1

Answer:

x intercept (- 7,0)

y intercept (0,3)

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Dr. Jimand poses as a student in his study of Bosnian students who are adjusting to college life in the United States. Dr. Jimand lives in the dorm with the students and attends classes with them. What research method is he using?A. formal experimentation
B. survey method
C. clinical method
D. naturalistic observation

Answers

Answer:

D. naturalistic observation

Step-by-step explanation:

Naturalistic observation is a method of research that consists in observing subjects in their natural environment without any exterior interferences that could alter their behavior. By posing as a student, Dr. Jimand is inserting himself among the other students to observe their natural behavior. For instance, if they were told that there was a doctor observing them, the students' behavior could change and that wouldn't be a true naturalistic observation.

Evaluate the following expression: (7+5b)+1 , if b = 3

Answers

The value of the expression will be 23.

What is an expression?

Expression in maths is defined as the collection of the numbers variables and functions by using signs like addition, subtraction, multiplication, and division.

Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.

Given that the expression is (7+5b)+1. Then the value of the expression at b = 3 will be:-

E = 7+5b)+1

E = 7 + ( 5 x 3 ) + 1

E = 7 + 15 + 1

E = 23

Therefore, the value of the expression will be 23.

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$(7+5b)+1$

$Substitute \ b \ for \ 3$

$(7+5(3))+1$

$7+15+1$ $Simplify \ 5*3 \ to \ 15$

$\boxed{\boxed{=23}}$ $Solution$

Round .0091 to the thousandths

Answers

The answer is 0.009.
Hope this helps!:)

0.0091 rounded to the nearest thousandths would be 0.009. This is because the 1 after the 9 is BEFORE 5 so it stays as 9, and we remove the 1.

Answer:- .0091 rounded to the nearest thousandths is .009.

Hope I helped ya!! xD

Translate the phrase into an algebraic expression
The sum of y and 3

Answers

It would be y+3. This is written as an algebraic expression.

Select the correct difference. 5d 2 + 4d - 3 less 3d 2 - 2d + 4 2d2 + 2d + 1 2d2 + 6d - 7 2d2 + 6d + 7 -2d2 - 6d + 1

Answers

If you would like to solve (5d^2 + 4d - 3) - (3d^2 - 2d + 4), you can calculate this using the following steps:

(5d^2 + 4d - 3) - (3d^2 - 2d + 4) = 5d^2 + 4d - 3 - 3d^2 + 2d - 4 = 2d^2 + 6d - 7

The correct result would be 2d^2 + 6d - 7.

Answer:

2d^2 + 6d - 7.

Step-by-step explanation:

What is the percentage increase from 200 to 280