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Valentin [98]
2 years ago
9

I NEED HELP ASAP AND PLEASE GIVE A STEP BY STEP FOR THE EXPLANATION WORTH 15 points

Mathematics
1 answer:
Karolina [17]2 years ago
4 0

Answer:

Step-by-step explanation:

the second one , why? because 7a-12a=-5a

4  - 8 = -4

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What is m∠B to the nearest tenth?
Tcecarenko [31]

Answer:

18.044

Step-by-step explanation:

hope it helps you good day if I'm wrong tell me right away I'll try it out again.

5 0
3 years ago
Without calculating the answer for 5 1/5 * 2/5 be larger or smaller than 5 1/5​
solniwko [45]

Answer:

Evidently, without the calculating 5 1/5 times 2/5 would be larger than 5 1/5 since you are already gonna multiply 2/5 and that would make it larger.

Hope this helps!

Branliest would be appreciated :DD

Step-by-step explanation:

4 0
3 years ago
What is 65 ÷ 455? because I need help.
eduard
65÷455= 7
Hope this helps!
8 0
3 years ago
Read 2 more answers
Write and evaluate the expression. Then, select the correct answer. The sum of forty-five and a number; evaluate when n = 1. 1 4
Colt1911 [192]

The sum of forty-five and a number n is 46.1, and the expression that can represent this can be written "45+n" where the value of n is 1.1

<h3>What is an Expression?</h3>

In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.

The statement that is given to us is" the sum of forty-five and a number", therefore, the expression that will represent this can be written as,

45 + n,

Now, if the value of n is 1.1. Then the sum will be,

45+n\\\\=45+1.1\\\\=46.1

Hence, the sum of forty-five and a number n is 46.1, and the expression that can represent this can be written "45+n" where the value of n is 1.1

Learn more about Expression:

brainly.com/question/13947055

6 0
2 years ago
Find the work W done by a force of 7pounds acting in the direction 30 degreesto the horizontal in moving an object 7feet from (0
Vikki [24]

Answer:

<em>The work done by the force is 42.4 Joules</em>

Step-by-step explanation:

The force F = 7 pounds

angle to the horizontal that the force acts ∅ = 30°

The object is moved a distance d = 7 feet

The coordinate  (0 comma 0 )to (7 comma 0 ), indicates that the movement started from the origin, and is along the x-axis.

The work done by this force = F cos ∅ x d

==> 7 cos 30° x 7

==> 7 x 0.866 x 7 =<em> 42.4 Joules</em>

5 0
3 years ago
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