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Zolol [24]
3 years ago
9

Subtract: (-14z^2+1)-(-13z^2)

Mathematics
2 answers:
Romashka [77]3 years ago
5 0
( - 14 {z}^{2} + 1) - ( - 13 {z}^{2} ) \\ = - 14 {z }^{2} + 1 + 13 {z}^{2} \\ = ( - 14 {z}^{2} + 13 {z}^{2} ) + 1 \\ = - {z}^{2} + 1
The answer is -z^2+1
sattari [20]3 years ago
4 0
I guest it is -z^2+1
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nata0808 [166]
65 divided by 7 is approximently 9, and 25 divided by 7 is approximently 3, so 9 plus 3 is 12, so Gracie must wash 12 cars to earn enough money to save 25 and spend 65!
7 0
3 years ago
I need help, what is 9^-2+181-69? this is math
satela [25.4K]

Answer:

193

Step-by-step explanation:

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4 0
2 years ago
Solve the equation 1/2(16x – 6) = 2.
Lorico [155]

Answer:

x = 0.625 or 5/8

Step-by-step explanation:

1/2(16x-6) = 2

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6 0
2 years ago
Please someone help me solve this i dpnt know the answer​
kozerog [31]
<h2><u>Answer With Explanation:</u></h2>

<u>Firstly, let's start with <XOZ: =55°</u>

We know that <ZOQ is 70° and angles on a line add up to 180° so we do 180-70=110 110 divided by 2 = 55 so the 2 angles (XOZ & XOP are 55)

<u>Secondly, <OMN, <MON & <ONM = All are 60°</u>

These 2 angles are joined to create an equilateral triangle which always adds up to 180°

So, there are 3 points to this triangle, therefore we divide 180 by 3 which is 60. The angles are 60°

<u>Thirdly, <QON: =55°</u>

This angle lies on the line XON which needs to add up to 180°

As we worked out before, <XOZ was 55°

So, <ZOQ was already given as 70°

We then do 55+70=125 then 180-125=55°

<QON is 55°

(I'm only in Grade 9 LOL)

4 0
2 years ago
Which number sentence is true?<br> 8 – 4= 11 – 8<br> 13 – 6 = 6-1<br> 6 – 5 = 7 – 6<br> Done
Anton [14]

Answer:

6-5 = 7-6

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
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