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7nadin3 [17]
3 years ago
12

Finding gradients and intercepts

Mathematics
1 answer:
Nikitich [7]3 years ago
7 0

Answer:

  1. gradient 10, intercept 6
  2. gradient -2, intercept 2

Step-by-step explanation:

The "gradient" is the coefficient of x. The "intercept" is the constant.

__

<h3>Q1</h3>

gradient: 10

intercept: 6

__

<h3>Q2</h3>

gradient: -2

intercept: 2

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Martin deposits $700 into a savings account that gains interest at a rate of 5.5% annually. If he waits 7 years to withdraw the
Travka [436]

。☆✼★ ━━━━━━━━━━━━━━  ☾  

Use the multiplier 1.055

final = original x multiplier^n

where 'n' is the number of years

Sub the values in

final = 700 x 1.055^7

final = 1018.27

Subtract the values:

1018.27 - 700 = 318.27

Thus, he earns more than $275

He earns $43.27 more

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4 0
3 years ago
Factorise completely:<br> 1. 3xy - x<br>2. 4a² - 9​
Amanda [17]

Answer:

x(3y - 1) and (2a - 3)(2a + 3)

Step-by-step explanation:

(1)

3xy - x ← factor out x from each term

= x(3y - 1)

(2)

4a² - 9 ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b) , then

4a² - 9

= (2a)² - 3²

= (2a - 3)(2a + 3)

6 0
3 years ago
I dont understand please help Which expression is equivalent to 8-(6r+2) A -6r+6 B 2r+2 C 6r+10 D -6r+10
Goryan [66]

Answer:

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Step-by-step explanation:

Given data

We are given the expression

8-(6r+2)

let us expand it by opening the bracket

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collect like terms

=8-2-6r

=6-6r

rearrange

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Hence option A is correct

8 0
3 years ago
If the ratio of similarity between two similar polygons is 4:3.2, this ratio converts to
Liula [17]

Answer:

Answer:

Step-by-step explanation:

Step-by-step explanation:

7 0
3 years ago
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The graph below shows the path of a model rocket after its launch from the ground.
Zarrin [17]
The answer the third one
8 0
3 years ago
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