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Pepsi [2]
2 years ago
13

Who made an error? The correct scale factor= ?

Mathematics
1 answer:
Ostrovityanka [42]2 years ago
4 0

Answer:

reggie made an error

the correct scale factor is 2/3

Step-by-step explanation:

we want to get from A to A', B to B', and ultimately C to C'

to get there, we must multiply each value in each point by the scale factor.

let's start out with reggie's scale factor. he multiplies each value in C by 3/2 to get to C'. we can try this out with one point, e.g. A

for A: 3/2 * (-12, -6) = (-18, -9). this is not A' = (-8, -4)! thus, 3/2 cannot be the scale factor

now, onto hillary's scale factor of 2/3

for A: 2/3 * (-12, -6) = (-8, -4). this is A'! thus, hillary is correct and reggie made an error

the correct scale factor is thus hillary's: 2/3

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Plz find any question plz
BigorU [14]

Q11

Suppose the two numbers are x and y so xy = 3000

the HCF = 10

we know that product of two numbers = product of their HCF and LCM

XY = HCF * LCM

3000 = 10 * LCM

3000/10 = LCM

300 = LCM

Answer 300

Q12 : Let us say second number is x so

product of x and 160 = product of HCF and LCM of ( x and 160 )

160 x = 32 * 1760

x= 32 * 1760 / 160

x= 352

Answer : 352

4 0
3 years ago
What is the slope of the line passing through (2,9) and (2,-14)
Brilliant_brown [7]

Answer:

The slope is undefined

Step-by-step explanation:

When graphed, the two points form a vertical line, since we can't divide the slope by zero thw slope is considered as undefined

6 0
3 years ago
A T-shirt department store cost 7.50.the total cost in dollar of a T-shirt is givien by the function C(a)=7.5a
tigry1 [53]

Given cost function C(a) = 7.5a, where a is the number of T-shirts.

Let us complete table.

We need to plug a=1,2,3,4 in above function to get the costs to complete the table.

For a =1

C(1)= 7.5(1) = 7.50

For a =2

C(2)= 7.5(2) = 15.00

For a =3

C(3)= 7.5(3) = 22.50

For a = 4

C(4)= 7.5(1) = 30.00

In order to find the common difference we need to find the diffrences of costs 15-7.50 = 7.50

22.50-15.00=7.50.

<h3>Therefore, common difference is 7.5.</h3>

a represents the number of T-shirts.

Domain of a is the numbers we can take for a.

So, we can take value for a as 0 or greater value.

Therefore, domain for a would be a is gerater than or equal to 0.

<h3>Domain : a≥0</h3>

6 0
3 years ago
The algebraic expression 0.07d^3/2 describes the duration of a storm, in hours, whose diameter is d miles. use a calculator to d
Shkiper50 [21]

Answer:

  1.30 hours

Step-by-step explanation:

Put the given number in the formula and do the arithmetic. The value of "d" is given as 7, so you are evaluating the expression ...

  duration = 0.07×7^(3/2) . . . . put 7 where "d" is in the expression

  = 0.07×18.520 . . . . . . . . . . . . evaluate 7^(3/2)

  = 1.2964 . . . . . . . . . . . . . . . . . do the multiplication

  ≈ 1.30 . . . . rounded to hundredth

The duration of a storm 7 miles in diameter is predicted to be 1.30 hours.

___

With a suitable calculator, this can all be done at once.

6 0
3 years ago
How many feet are there in 3 miles
Yuri [45]

Answer:

14,850

Step-by-step explanation:


7 0
3 years ago
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