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Roman55 [17]
2 years ago
11

Find the area of the large and small rectangles :,))

Mathematics
2 answers:
nasty-shy [4]2 years ago
8 0

Answer:

Area of large rectangle = 120m²

Area of small rectangle = 14m²

Step-by-step explanation:

<u>Large rectangle:</u>

Length = 12m

Breadth = 10m

Area of rectangle = l × b

Area = 12 × 10

Area = 120m²

<u>Small rectangle:</u>

Length = 7m

Breadth = 2m

Area of rectangle = l × b

Area = 7 × 2

Area = 14m²

-BARSIC- [3]2 years ago
5 0

Answer:

the area of the large rectangle is 120m squared in the area of the smaller triangle is 14m squared

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If x^2-13x+42=(x+A)(x+B), then find the value of 3A-B
tigry1 [53]

Answer:

- 11 or - 15

Step-by-step explanation:

Factorise

x² - 13x + 42

Consider the factors of the constant term (+ 42) which sum to give the coefficient of the x- term (- 13)

The factors are - 6 and - 7, since

- 6 × - 7 = + 42 and - 6 - 7 = - 13, thus

x² - 13x + 42 = (x - 6)(x - 7)

compare to (x + A)(x + B)

A = - 6, B = - 7

thus 3A - B = 3(- 6) - (- 7) = - 18 + 7 = - 11

The factors may also be expressed as (x - 7)(x - 6)

with A = - 7 and B = - 6, then

3A - B = 3(- 7) - (- 6) = - 21 + 6 = - 15

5 0
3 years ago
Madeline uses a mirror on the ground to measure the height of her school building. She walks a distance of 9.5 m from the buildi
Vadim26 [7]

The height of the building is 5.33m.

<h3>How to calculate the height?</h3>

The question is to calculate the height of the building.

Based on the information given, the height will be:

Madeline eye height/Distance from X = Height of building/Building distance from X

1.55/2.75 = x/9.45

x = (1.55 × 9.45)/2.75

x = 5.33 m

Learn more about height on:

brainly.com/question/983412

#SPJ1

3 0
2 years ago
I'll give you 40 Points if you help me out with these math questions!!! #11th grade math..ughh
svet-max [94.6K]

Answer:

<h3>23\sqrt[1]{2}</h3>

Step-by-step explanation:

Simplify.

5 0
3 years ago
If a line with the slope -2 crosses the y-axis at (0,3),what is the equation of the line
gregori [183]
The equation of the line is y=-2x+3. 
6 0
3 years ago
5(1+32)<br> --------------<br>         12
blagie [28]
5(1 + 32) = 5(33) = 165
8 0
3 years ago
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