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Elodia [21]
2 years ago
9

Evaluate the expression 4(x - 3) + 7 using x=2

Mathematics
2 answers:
Maru [420]2 years ago
6 0
4x - 12 + 7
4x - 5
4(2) - 5
8 - 5
the answer is 3
In-s [12.5K]2 years ago
6 0

Answer:

3

Step-by-step explanation:

Parentheses Exponents Multiplication Division Addition Subtraction

x=2 4(2-3)+7

P: (2-3)=-1

E:

M: 4(-1)=-4

D:

A: -4+7= 3

S:

4(2-3)+7=3

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Anton [14]
There are 10 doses.  4x5=20/2=10
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3 years ago
Read 2 more answers
I need help with my math
Nat2105 [25]

Answer:

Part A. C=9

Part B. (w+3)² =139

Part C. w = 8.8 inch

Step-by-step explanation:

Given from the question length of the the picture = (2w+12) inches

Width of the picture = w inches

Area of the picture = 260 inch²

Part A. Area of the picture with the given dimensions= w×(2w+12)

Or w(2w+12) = 260

2w²+12w = 260

2(w²+6w) = 2×(130)

w²+6w = 130

Or w²+6w +9 = 130+9 ⇒ which is in the form of w²+6w+c = 130+c

Therefore for c = 9 we will get a perfect square trinomial.

Part B. As we have seen the equation in part A.

As required equation will be (w+3)²=139

Part C. Since (w+3)² = 139

Then by taking under root on both the sides of the equation

(w+3) =√139 = 11.8

(w+3)-3=11.8-3

w = 8.8 inch

3 0
3 years ago
What is 416,000,000 expressed in scientific notation ?
Inga [223]
4.16 10^8


Hope this helps *smiles*
5 0
3 years ago
Giả sử một nhà sản xuất thuê hai yếu tố K và L để sản xuất máy pha cà
adoni [48]

Answer:

......................

5 0
2 years ago
Please put the explanation!
BaLLatris [955]

Answer:

60

Step-by-step explanation:

In order to get this answer, we must know that a triangle's angles add up to exactly 180. Also, Angles that intersect will have congruent, opposite sides. The last thing is that a line is = 180 degrees. So, the triangle with the 94 and the 142, you can use that. the angle next to the 142 is going to be 180-142 which is 38 and since the other angle is opposite 94, as well. when you add those up u get 132 and 180-132= 48 which is the missing angle for the far right triangle. then, you get the opposite of that angle, put that in the other triangle, do the same with the 72, and add those up to get 120 and since a triagle adds up to 180, 180-120 = 60. So, 60 is your missing angle. Cheers

5 0
2 years ago
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