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malfutka [58]
3 years ago
12

Toán 9 nha mọi người

Mathematics
1 answer:
Furkat [3]3 years ago
7 0

Answer:

Thamkhao

Step-by-step explanation:

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What is the answer to 4 and 5?
borishaifa [10]
Ignore the height (3) and concentrate on the length and width of the bottom:

The bottom is 15 cm by 3 cm, and so the diagonal of the bottom is

sqrt(15^2 + 3^2) = sqrt(225+9) = sqrt(334).
6 0
3 years ago
jada made 12 cups of blueberry jam qnd divide the jqm equally qmong 8 contqiners how much jam went in each container ​
ser-zykov [4K]
1,5 one and a half cups of blueberry jam
3 0
3 years ago
Quadrilaterals ABCD and EFGH are similar. If the perimeter of the quadrilateral ABCD is equal to 4y² what is the perimeter of th
UNO [17]

Answer:

Can't be determined.

Step-by-step explanation:

From the fact that the quadrilaterals are similar:

Corresponding sides are in proportion and

Corresponding angles are congruent.

We can't create a proportion, so there's nothing else that we can determine.

4 0
3 years ago
Read 2 more answers
Simplify the expression. If not possible write simplified. 3x+7(3x+4)
zavuch27 [327]

3x + 7(3x+4)

Distribute:

=3x + (7)(3x) + (7)(4)

=3x + 21x + 28

Combine like terms:

=3X + 21X +28

=(3x + 21x) + (28)

=24x +28

6 0
4 years ago
Can someone please help me in this question
Oduvanchick [21]

Answer:

a. 26 cm²

b. 55 cm²

c. 78 cm²

d. 89.27 cm²

Step-by-step explanation:

a. The shape can be decomposed into two rectangles

Area of the larger rectangle = L*W

L = 7 cm

W = 2 cm

Area of the larger rectangle = 7*2 = 14 cm²

Area of the smaller rectangle = L*W

L = 4 cm

W = 5 - 2 = 3 cm

Area of the larger rectangle = 4*3 = 12 cm²

Area of the compound shape = 14 + 12 = 26 cm²

b. The shape can be decomposed into a rectangle and a triangle.

Area of the compound shape = area of rectangle + area of triangle

= L*W + ½*b*h

L = 8 cm

W = 5 cm

b = 5 cm

h = 14 - 8 = 6 cm

Plug in the values

Area = 8*5 + ½*5*6

Area = 40 + 15

= 55 cm²

c. The shape can be decomposed into a rectangle and a trapezoid

Area of the compound shape = area of the rectangle + area of the trapezoid

= L*W + ½(a + b)h

L = 12 cm

W = 3 cm

a = 12 cm

b = 9 cm

h = 4 cm

Plug in the values

Area = 12*3 + ½(12 + 9)4

Area = 36 + 42

Area = 78 cm²

d. The shape can be decomposed into a rectangle and a semicircle

Area of the compound shape = area of the rectangle + area of the semicircle

= L*W + ½(πr²)

L = 10 cm

W = 5 cm

r = ½(10) = 5 cm

Plug in the values

Area = 10*5 + ½(π*5²)

Area = 50 + 39.27

Area = 89.27 cm²

7 0
3 years ago
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