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Tasya [4]
3 years ago
14

Identify whether each of the following expression is a quadratic expression in one variable. Give reason for your anwser

Mathematics
1 answer:
ladessa [460]3 years ago
6 0
I believe anything that is squared (^2) is a quadratic. so a, b, e and f are quadratics. you could also check on desmos to see if they are parabolas (u shape).
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Kenya dose the pole vault for her school's track team. Her record is 2 meters 86 centimetres. How many millimetres is Kenya's re
kvv77 [185]

Answer:

2860

Step-by-step explanation:

First, convert 2 meters into cm and then convert to mm. m to cm+200cm cm-mm= 2000. Then turn 86 centimetres into mm which is 860 mm. Lastly 2000+860=2860. Hope this helps

6 0
2 years ago
Read 2 more answers
Solve $16x+9=9y-2x$ for $y$ .
s344n2d4d5 [400]

Answer:

The solution for y is y = 2x + 1

Step-by-step explanation:

* <em>Lets explain how to solve an equation for one of the variables</em>

- We need to solve the equation 16x + 9 = 9y - 2 x for y

- That means we want to find y in terms of x and the numerical term

- the equation has two sides, one side contains x and numerical term

 and the other side contains y and x

- We need to separate y in one side, and other term in the other side

* <em>Lets do that</em>

∵ 16x + 9 = 9y - 2x

- Add 2x to both sides to cancel -2x from the right side

∴ 16x + 2x + 9 = 9y - 2x + 2x

- Add like terms in each side

∴ 18x + 9 = 9y

- Divide each term by the coefficient of y ⇒ (÷9)

∴ (18 ÷ 9)x + (9 ÷ 9) = (9 ÷ 9)y

∴ 2x + 1 = y

- Switch the two sides

∴ y = 2x + 1

* The solution for y is y = 2x + 1

3 0
2 years ago
Round 3208 to the nearest ten place
polet [3.4K]

Answer:

3210

Step-by-step explanation:

When rounding to the nearest 10, 100, 1000 and so on, the number digit before it has to be 5 or above. in this case, the number before the tenth placement digit is 8. Rounding it to 3210.

P.S

Have an Amazing Day!

<em><u>Faker/Tosrel</u></em>

3 0
3 years ago
Read 2 more answers
2 |n + 10|= -2<br><br> solve the equation
MissTica
2n + 20 = -2

20 + 2 = -2n

22 = -2n

22/2 = n

11 = n
3 0
3 years ago
What is the slope of the line that passes through the points (-4, 8)(−4,8) and (-14, 8) ? Write your answer in simplest form.
guapka [62]

Answer:

si. tiene. que. hacer. división

8 0
3 years ago
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