3 years ago

4(m-9)=2(2m+1)-40 Is it a infinite or no

Mathematics

1 answer:

valentina_108 [34]3 years ago

7 0

4m-36=4m-38
No, that would be no solution because -38 and -36 are not the same

You might be interested in

When using the order of operations to simplify (7 + 3) * 4 - 1 + (6 + 8), which operation should be performed first?

enot [183]

Answer:

addition because it's in parentheses and following PEMDAS parentheses comes first so you do addition first.

I hope you find this helpful :D

5 0

3 years ago

Read 2 more answers

In △ABC, a=31, b=22, and c=18. Identify m∠A rounded to the nearest degree. HELP ME PLEASE!!

4vir4ik [10]

Answer:

The measure of angle A is $101\°$

Step-by-step explanation:

we know that

Applying the law of cosines

$a^{2} =b^{2}+c^{2}-2(b)(c)cos(A)$

substitute the values and solve for cos(A)

$31^{2} =22^{2}+18^{2}-2(22)(18)cos(A)$

$cos(A)=[22^{2}+18^{2}-31^{2}]/(2(22)(18))\\ \\cos(A)=-0.193182\\ \\A=arccos(-0.193182)=101\°$

3 0

4 years ago

Mr. Chang’s class has 28 students, 4/7 of whom are girls. Which equation shows how to determine the number of girls in Mr. Chang

DedPeter [7]

Okay, so we know a number of students and the amount of girls as a bracket. So what we have to do now is multiply them with each other.
28 *4/7 = 16
So there are 16 girls in Mr. Chang´s class.
You can also determine the boys by - the students with the girls:
28-16=12 boys

Have a nice day :D

6 0

4 years ago

Read 2 more answers

John has 48 cm tiles he wants to use to create a mosaic he wants the mosaic to be rectangular with the length that is 2 cm longe

bonufazy [111]

I need help my dang self

7 0

2 years ago

100 points!! <br> Please solve question 50 in detail

SCORPION-xisa [38]

Answer:

2.62