3 years ago

NUMBER 4 NAD 5 PLEASE HELPPP

Mathematics

1 answer:

mezya [45]3 years ago

4 0

Answer:

4. 3169

5. 60

Step-by-step explanation:

4. To evaluate the value, you must substitute the variable with it’s given value.

12 - 3m +(8m)^2 = 12 - 3 x -7 + ( 8 x -7)^2 = 12 +21 + 3136 = 3169.

5. Let the number be y.

130/100 x y = 78

13y/10 = 78

13y = 780

y = 60.

Hope this helps

You might be interested in

(2c-6) (5c²+5) what would this be for multiplying polynomials

solniwko [45]

Answer:

10c^3 -30c^2 + 10c -30

Step-by-step explanation:

2c(5c^2+5) - 6(5c^2+5)

= 10c^3 + 10c - 30c^2 - 30

= 10c^3 -30c^2 + 10c -30

4 0

1 year ago

There are 180 students in the seventh grade, and 25% are in the Environmental Club. How many students are in the Environmental C

Hunter-Best [27]

Answer:

45 students are in the Environmental Club

Step-by-step explanation:

25/100 = x/180 (cross multiply)

(180 * 25) / 100 = 45

4 0

2 years ago

If there are 13 values in a data set in order from smallest to largest, what is

Alisiya [41]

Answer:

c i believe but i'm not totally sure

Step-by-step explanation:

3 0

3 years ago

What is -3x+10=4x-20

irga5000 [103]

Answer: 4 2/7

Step-by-step explanation:

There are 2 ways to do this I dont like a negatuve so add 20 over to 10 now we got -3x + 30=4x add 3 over to 4x we now have 30=7x we are left with 30/7. Or u could make it 4 2/7

5 0

3 years ago

When is it easy to show if a set is closed or not closed?

Pani-rosa [81]

Answer:i think its if the dots are open they arent closed but if they are filled in its closed same with () and [] if its (x,y) then its not able to be used but if its [x,y] then it is able to be used

Step-by-step explanation:

3 0

3 years ago