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Firdavs [7]
3 years ago
5

Multiplying with decimals

Mathematics
2 answers:
mel-nik [20]3 years ago
8 0

Answer:

the way that is easiest for me is to do the bunk-bed strategy

for example      

                         154                                                                                                                                                                                        .                      x<u> 0.45  </u>                                                                                                                                                 .                   =        

5 x 4

5 x 5

5 x 1

    then

4 x 4

4 x 5

4 x 1

   then u add the #'s together but then cince its a decimal u add the decimal point to the full # , the answer is 6930 but then the decimal 69.3

AnnyKZ [126]3 years ago
4 0

Answer:

Dont know what your asking for

Step-by-step explanation:

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11points HELP PLZ!!!
scZoUnD [109]

Answer: 0.00215

Step-by-step explanation:

10^-3 =0.001

2.8 • 0.001 - 0.00065

=0.00215

8 0
2 years ago
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I NEED HELP, I NEED TO SHOW WORK
Verdich [7]

Answer: 9 over 12 is = 15 over x

Step-by-step explanation:

7 0
2 years ago
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In parallelogram HIJK, the measure of angle H is 45 degrees. 1.Find the measure of J and explain how you know
s2008m [1.1K]

Answer:

45°

Step-by-step explanation:

A parallelogram is a polygon with 4 sides and 4 angles (that is a quadrilateral).

For a parallelogram ABCD, Opposite sides and opposite angles are equal (i.e. BC = AD and ∠A = ∠C).

Consecutive angles are supplementary that is ∠A + ∠B = 180°.

The diagonals of a parallelogram bisect each other also separating the parallelogram into two congruent triangles.

In parallelogram HIJK, ∠H and ∠J are opposite angles. hence:

∠H = ∠J (opposite angles of a parallelogram are equal)

∠J = 45°

8 0
3 years ago
Who made an error? <br> The correct scale factor= ?
Ostrovityanka [42]

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

4 0
2 years ago
Which exponential function is represented by the values in the table?
svlad2 [7]

Here we use the equation

y = a(b)^x

Taking points (0,4), (1,2)

Substituting the point (0,4) , we will get

4 = a(b)^0&#10;\\&#10;4 = a(1)  \\&#10;a =4

Substituting (1,2) we will get

2 = 4 (b)^1&#10;\\&#10;2/4 = b&#10;\\&#10;b = 1/2

So we have

a = 4, b = 1/2

Therefore , required equation is

y = 4(1/2)^x

7 0
3 years ago
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