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Furkat [3]
3 years ago
12

3. What multiplication expression represents 7 + 7 + 7 + 7?

Mathematics
1 answer:
olga_2 [115]3 years ago
6 0

Answer: 7 times 4

Step-by-step explanation:

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The weight of a nickel is 5 g. how many mg does a nickel weigh?
alexandr1967 [171]
There are 1000 milligrams in a gram (milli: 1/1000). Multiply 1000 by 5 g.

Final answer: 5000 mg.
4 0
3 years ago
Karisha drew pentagon A on a coordinate grid. She then performed a rotation followed by a dilation with scale factor 5 to produc
alex41 [277]

Answer:

A.

Step-by-step explanation:

Rotation is a transformation that turns a figure about a fixed point. An object and its rotation image are the same shape and size, but the figures may be turned in different directions. So, rotation gives us two congruent pentagons.

Dilation is a transformation that produces an image that is the same shape as the original (similar to original), but is a different size. So, dilation gives us two similar pentagons.

A sequence of rotation and dilation produces pentagon that is similar to the initial, but not congruent.

In attached diagram you can see the pictorial representation:

  • pentagon FGHIJ is the rotation image of pentagon ABCDE
  • pentagon KLMNO is dilation image of pentagon FGHIJ

5 0
3 years ago
(4x-1)²-(4x-3) x (16x²+3)
Brilliant_brown [7]

Answer:

-64x^3 +64x^2-20x+10

Step-by-step explanation:

simplify, distribute

(btw, the little arrow sign means a exponent)

4 0
3 years ago
the bake stars started with 3.5 pounds of power pasta. Luis and Marlana bought 0.83 pound. How much is left over
12345 [234]

Answer:

2.67

Step-by-step explanation:

They are asking for the total poundage of power pasta after some is removed. This means we subtract the amount removed from the original amount.

Hope this helps!

6 0
3 years ago
Michelle wants to borrow $2000. She has two options. Option 1 - she can borrow $2000 for 3 years at 7%. Option 2 - she can borro
Assoli18 [71]

Answer:

Option 1

Step-by-step explanation:

To find which will cost more, we need to know the amount of interest that will be on each loan

To get this, we use the general formula

I = PRT/100

Where P is the principal I.e $2,000 in both cases, R is the interest rate and T is the time.

We proceed as follows. For the first option

I = (2000 * 7 * 3)/100 = $420

For the second option

I = (2,000 * 1 * 12)/100 = $240

Option 1 is definitely more costly

3 0
3 years ago
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