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timama [110]
3 years ago
12

Evaluate the expression (2x + y) - z when x= 3, y = 4, z =5​

Mathematics
1 answer:
Lapatulllka [165]3 years ago
5 0

Answer:

5

Step-by-step explanation:

(2x + y) - z

Let x=3  y=4 and z=5

2*3 +4 -5

Multiply and divide first

6 +4 -5

Then add and subtract

10-5

5

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Which inequality is equivalent to -x < 8?
Ilia_Sergeevich [38]

Explanation: \\  - x < 8 \\   - x \times ( - 1) > 8 \times ( - 1) \\ x > 8 \\ Therefore \: the \: answer \: is \:  B

8 0
3 years ago
(-3-5i)(-3+5i)<br><br> A.34<br> B.34-30i<br> C.-16
Natasha_Volkova [10]

Answer:

34

Step-by-step explanation:

See Image Below:)

6 0
3 years ago
Plz help I need this to be answered
yawa3891 [41]
The correct graph is D. 

We can tell this for two reasons. Firstly, you would need a dotted line. Since the equation includes a greater than sign, and not a greater than or equal to sign, it must be dotted. 

Then we need to figure out whether to shade above or below the line. The best way to find this is by checking whether the point (0,0) should be shaded. 

y + 2 > -3x - 3
0 + 2 > -3(0) - 3
2 > -3 (TRUE)

Since this is a true statement, the side with (0,0) needs to be shaded. Graph D is the only one that has a dotted line and (0,0) shaded. 
8 0
3 years ago
Explain what the inequality --4h &lt;-14 represents.<br> What value of h makes the equation true
KonstantinChe [14]

Answer:

-4h < - 14

We solve for h by applying the inverse operations;

The inverse operation of multiplication is division, so we divide by -4 on both sides;

/-4      /-4

h < 3.5, it could be <u>3.4, 3.3, 3.2 3.123, 2.4, 2.576</u>, there are tons of numbers below 3.5.

<u>So anything below 3.5 would best be suitable for the equation.</u>

8 0
3 years ago
twelve less than four times some number n is at least three more than the number. What values are possible for n?
IRISSAK [1]
4n -12 >n
4n > n + 12
3n > 12
n > 4
So 5,6,7,8,9, and so on
3 0
3 years ago
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