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3 years ago

Mhanifa please help! This is due asap and I will mark brainliest :)

Mathematics

2 answers:

zubka84 [21]3 years ago

7 0

1. Answer:

They are not similar.

1. Step-by-step explanation:

They do not have a common "rule" or do not multiply/divide to get the sides.

2. Answer:

They are similar.

2. Step-by-step explanation:

Each side is being divided by 5 to get the sides.

Have a great day/night!

Naddik [55]3 years ago

3 0

Answer:

<h3>Question 7</h3>

Both triangles are isosceles.

<u>Let's determine the ratio of corresponding sides:</u>

6/8 = 3/4
4/6 = 2/3

Ratios are different 3/4 ≠ 2/3, this indicates the corresponding angles are not equal.

The triangles are <u>not similar</u>.

<h3>Question 8</h3>

Given two rectangles.

<u>Let's find the ratio of corresponding sides:</u>

25/5 = 15/3
5 = 5

<u>Correct choice is:</u>

Yes, HIJK ~ QRST

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4 years ago

The shape of Joy’s room is a rectangle 540 cm long by 250 cm wide.

UNO [17]

<h2><u>Question</u><u>:</u><u>-</u></h2>

The shape of Joy’s room is a rectangle 540 cm long by 250 cm wide.

a. Work out the area of his room in Square meters.

b. How much does he pay to buy flooring for his room where flooring costs $ 40 per square meter

<h2><u>Question</u><u> </u><u>No</u><u>.</u><u> </u><u>a</u></h2>

Work out the area of his room in Square meters.

<h3><u>Given</u><u>:</u><u>-</u></h3>

Length of the room 540 cm = 540/100 m = 5.4m
Breadth of the room 250cm = 250/100 m = 2.5m

Area of the room.

<h3><u>Solution</u>:-</h3>

We know that:-

Area of a rectangle = (length × breadth)sq.units

Therefore,

Area of the rectangular room = (5.4 × 2.5) square meters

=> Area of the rectangular room = 13.5 square meters.

<h3><u>Answer</u><u>:</u><u>-</u></h3>

Area of his room is 13.5 square meters.

<h2><u>Question</u><u> </u><u>No</u><u>.</u><u> </u><u>b</u></h2>

How much does he pay to buy flooring for his room where flooring costs $ 40 per square meter

<h3><u>Given</u><u>:</u><u>-</u></h3>

Cost in per square meter = $40
Area of the room = 13.5 square meters (From question a)

Total cost of flooring

<h3><u>Solution</u><u>:</u><u>-</u></h3>

Flooring cost in 1 squre meter = $40

Flooring cost in 13.5 square meters = $(40 × 13.5) = $540

<h3><u>Answer</u><u>:</u><u>-</u></h3>

He pays $540 to buy flooring for his room.

Hope this helps you!! (^_^)

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3 years ago

These two matrices are unable to be added due to dimensional mismatch? True, false, both, unable to answer with the info given

Hoochie [10]

Answer:

false

Step-by-step explanation:

$\left[\begin{array}{c}-4\end{array}\right] +\left[\begin{array}{c}7\end{array}\right] =\left[\begin{array}{c}3\end{array}\right]$

Both of the matrices are 1 x 1 ("one by one"), so they can be added to produce a 1 x 1 matrix.

To add (or subtract) two matrices, they must be the same size.

(m x n) + (m x n) = (m x n)

m x n means a matrix has m rows and n columns. Dimensions are always named in that order: rows, then columns.

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3 years ago