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emmasim [6.3K]
3 years ago
12

When graphing inequalities, and you divide y by a negative number, do you switch the symbol?

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
4 0
Yes you need to! And you need to be careful not to forgot that when doing your calculations!!
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Find the second derivative for y=e^10x+y
vesna_86 [32]

Answer:

10 e ^10 x

Step-by-step explanation:

Find the derivative using the chain and power rules.

3 0
3 years ago
A triangular courtyard has a perimeter of 120 meters. The lengths of two sides are 30 meters and 50 meters. How long is the thir
Masja [62]

Answer:

the third side is 40 m long

Step-by-step explanation:

The perimeter of the triangle is the sum of its three sides, and they give you what that value in meters is (120 m)

Your are given the length of two of them: 30 m and 50 m, and need to find the third one (let's call it "x" for this unknown side)

Now set the following equation:

Perimeter = side 1 + side 2 + side 3   --> replace these with the info you know

120 m = 30 m + 50 m + x   --> add 30 m and 50 m obtaining 80 m

120 m = 80 m + x  --> now solve for x (isolate the x on one side) by subtracting 80 m from both sides

120 m - 80 m = x  --> perform the subtraction 120 m - 80 m = 40 m

40 m = x

Which tells us that the third unknown side has a length of 40 m

7 0
3 years ago
Read 2 more answers
PLZZ HELP!!!!!!! PLZ ANSWER a.__________ b._________ and c.__________
grandymaker [24]

Answer:

A - 25%

B - 100%

C - 75%

Step-by-step explanation:

I'm pretty sure. Hope this helps. If the shape is divided into 4 equal parts, each one would be worth 25%.

3 0
2 years ago
Flying to Kimpala with a tail wind a plane averaged 158km/hr. On the return trip the plane only average 112km/hr. While flying b
lora16 [44]

The speed of wind and speed of plane in still air  are  23  and  135 km/h respectively.

<u>Step-by-step explanation:</u>

Let the speed of wind and speed of plane in still air  are  w  and  p km/h respectively.  

The effective speed on onward journey was  

p+w=158  ................(1)

The effective speed on return journey was  

p-w=112 ..............(2)

Adding equation (1) and equation (2) we get,  

⇒ (p+w)+(p-w) = 158+112

⇒ 2p = 270

⇒ p = 135

Putting value of p = 135 in p+w=158 we get:

⇒ p+w=158

⇒ 135+w=158

⇒ w=23

Therefore ,The speed of wind and speed of plane in still air  are  23  and  135 km/h respectively.

3 0
3 years ago
Find the remainder when x^5-x-1 is divided by (x-1)(x-2)<br>​
Elina [12.6K]

Answer:

ldk Sry

Step-by-step explanation:

6 0
3 years ago
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