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3 years ago

Classifying Parallelograms-

Mathematics

2 answers:

Afina-wow [57]3 years ago

7 0

1. False
2. False
3. True
4. False
Hope this helped

erastova [34]3 years ago

6 0

1.False
2.False
3.True
4.False

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I need this answered asap please and thankyou :D

suter [353]

Answer:

Step-by-step explanation:

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3 years ago

The ___________ of a lens or mirror is a rotational symmetry axis of the surfaces.

densk [106]

Answer:

Optical axis

Step-by-step explanation:

Optical axis is the rotational symmetry axis of the surfaces.

A line with a certain degree of rotational symmetry is called as the optical axis in an optical system.

It is the straight line that passes through the geometric center of the lens and joins two curvature centers of its surfaces.

It is also called as the principal axis.

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3 years ago

Polly buys 14 cupcakes for a party. The bakery puts them into boxes that hold 4 cupcakes each.

Temka [501]

Answer:

Part a) The number of boxes needed will be 4

part b) The fraction of the box that is empty is $\frac{1}{2}$

Part c) Are needed 2 cupcakes to fill the last box

Step-by-step explanation:

Part a) How many boxes will be needed for Polly to bring all the cupcakes to the party?

To find out the number of boxes needed, divide the total number of cupcakes by 4 (maximum number of cupcakes that fit in each box).

$\frac{14}{4}=3.5\ box$

Round up

The number of boxes needed will be 4

Part b) If the bakery completely fills as many boxes as possible, what fraction of the last box is empty?

we know that

The maximum number of cupcakes per box is 4

The first three boxes have 4 cupcakes

The last box has

$14-3(4)=2\ cupcakes$

The fraction of the box that is empty is equal to the number of cupcakes missing to fill the box divided by the cupcake capacity of the box

$\frac{2}{4}=\frac{1}{2}$

Part c) How many more cupcakes are needed to fill this box

Subtract the number of cupcakes in the box from the cupcake capacity of the box

The last box has 2 cupcakes

The cupcake capacity of the box is 4

$4-2=2\ cupcakes$

therefore

Are needed 2 cupcakes to fill the last box

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3 years ago

Solve the simultaneous equation 2x + y= 6

vivado [14]

Answer:

x=1 y=4

Step-by-step explanation:

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3 years ago

A, B, and C are polynomials, where: A = 3x – 4 B = x + 7 C = x2 + 2 What is A2 – (B + C) in simplest form? 8x2 – 25x + 7 8x2– 25

Zina [86]

Hello,

Answer A

(3x-4)²-(x+7+x²+2)=9x²-24x+16-x-x²-9
=8x²-25x+7

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3 years ago

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