Ask question

Ask question

All categories

2 years ago

14

A square hole 7.50 cm along each side is cut in a sheet of copper. (a) Calculate the change in the area of this hole resulting w

hen the temperature of the sheet is increased by 49.0 K. cm2(b) Does this change represent an increase or a decrease in the area enclosed by the hole

1 answer:

Katena32 [7]2 years ago

3 0

Answer:

it increases the the hole

Step-by-step explanation:

You might be interested in

How much is 2000mg in grams?

Ghella [55]

Answer:

2 grams

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

12.642 to the nearest tenth

Evgen [1.6K]

Answer:

12.6

Step-by-step explanation:

sorry only first one

6 0

2 years ago

Perform the indicated operation. 15b/4 * 8/9a^2b^2

Sergio [31]

Answer:

The simplified expression is $\frac{10}{3 a^2 b}$

Step-by-step explanation:

The given expression is:

$\frac{15b}{4} * \frac{8}{9a^2 b^2}$

Multiply the items in the numerator together ( 15b * 8 = 120 b). Also multiply the items in the denominator together ( 4 * 9a²b² = 36a²b²). The expression thus becomes:

$= \frac{120b}{36 a^2 b^2} \\\\$

Divide both the numerator and the denominator by 12b:

$= \frac{120b /12b}{36 a^2 b^2/12b}$

The expression finally becomes:

$= \frac{10}{3 a^2 b}$

7 0

3 years ago

Write a two-column proof. Given: <2 is congruent to <5; Segment AB is congruent to Segment DE Prove: Segment BC is congrue

kotykmax [81]

Answer:

proof

Step-by-step explanation:

Statements

Reasons

<2 is congruent to <5; Segment AB is congruent to Segment DE

Given

<3≅<4

Vertical angle theorem

ΔCDB≅ΔCAE

AAS

Segment BC is congruent to Segment EC

CPCTC

5 0

3 years ago

A three-dimensional array can be thought of as ______ of two-dimensional arrays.

Iteru [2.4K]

A page of two-dimensional arrays can be thought of as a three-dimensional array. Since 2-dimensional arrays are commonly expressed in tables or matrixes, therefore, if we put these tables or matrices in a page, the collection of matrices in a single page would now be structured into a 3D array.

6 0

3 years ago