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ValentinkaMS [17]
3 years ago
11

18-(7-3) and (18-7)-3

Mathematics
2 answers:
Andreas93 [3]3 years ago
8 0

Answer: #1=14     #2=8

Step-by-step explanation:

#1  7-3=4  18-4=14


#2  18-7=11   11-1=8

kap26 [50]3 years ago
4 0

Answer: 14 and 8


Step-by-step explanation: 7-3 = 4, 18-4 = 14... 18-7 = 11, 11-3 = 8


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5x+6+1x in simplest form
Readme [11.4K]
5x+6+1x
= (5x+1x)+ 6 (combine like terms)
= 6x+6
= 6(x+1) (distributive property)

The final answer is 6(x+1)~
8 0
3 years ago
For the complex number 10+12i identify the real part and the imaginary part
SpyIntel [72]
Complex number = a +bi

a is a real part, bi - an imaginary part

So, in <span>10+12i 
10 is a real part, 12i is an imaginary part.</span>
7 0
3 years ago
Rewrite in simplest terms: -2(5d-9f)+7f-10(-9f-7d)
Afina-wow [57]

Answer:

= 5 ( 12d + 23f )

Step-by-step explanation:

-2(5d-9f)+7f-10(-9f-7d

Open parenthesis

= -10d + 18f + 7f + 90f + 70d

Collect like terms

= -10d + 70d + 18f + 7f + 90f

= 60d + 115f

Factorise

= 5 ( 12d + 23f )

Therefore,

-2(5d-9f)+7f-10(-9f-7d) in its simplest form is 5 ( 12d + 23f )

4 0
2 years ago
30 points!<br>please help<br><br>in return brainliest and special thanks
a_sh-v [17]
21. >

22. Distributive Property
5 0
3 years ago
Read 2 more answers
How do you do this question?
vaieri [72.5K]

Answer:

(-∞, -2), (-2, -0.618), and (1.618, 3)

Step-by-step explanation:

The red plus (+) signs indicate the regions in which the function is concave up, and the red negative (-) signs indicate the regions in which the function is concave down.

Note that the sign of the concavity changes at an inflection point.

Let's examine the intervals given.

(-∞, -2): Yes, concave up.

(-∞, -1.17): No. Concave up in (-∞, -2) but concave down in (-2, -1.17).

(-2, 0): No. Concave down in (-2, -1.17) but increasing in (-1.17, 0.0).

(-1.17, 0.689): Yes. Concave up.

(-0.618, 1.618): No. Concave up in (-0.618, 0.689) but concave down in (0.689, 1.618).

(0, 3): No. Concave up in (0, 0.689), concave down in (0.689, 2.481), and concave up in (2.481, 3).

(2.481, ∞): Yes. Concave up.

The three intervals that are concave up are (-∞, -2), (-1.17, -0.689), and (2.481, ∞).

4 0
3 years ago
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