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RUDIKE [14]
3 years ago
15

Divide £72 cm in the ratio 2:3:1

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
6 0
2:3:1....added = 6

2/6(72) = 144/6 = 24
3/6(72) = 216/6 = 36
1/6(72) = 72/6 = 12

ratio is now 24:36:12
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THE vertices of a triangle are P(-1,3), Q(2,-1), and R(5,3) choose all the congruent sides of the triangle
Ratling [72]

Answer:

PQ and QR are congruent.

Step-by-step explanation:

The length of PQ = sqrt [(2 - -1)^2 + (-1 - 3)^2]

= sqrt 25

= 5 units.

QR = sqrt [(5-2)^2 + (3 - -1)^2) ]

= sqrt 25

= 5 units.

PR =  sqrt [ ( 3-3^2 + (5- -1)^2]

= sqrt 36

= 6 units.

7 0
3 years ago
What is the domain of the square root function graphed below?
Irina18 [472]

Answer:

D

Step-by-step explanation:

1. The domain is all x values for the function.

2. Since the line starts at the x value of 3, it is included and since it goes to the right, it also includes all the values greater than 3.

3. Therefore, x>_3

8 0
3 years ago
If (x) = 3x - 2 and g(x) = 2x + 1, find (f+g)(x).<br> A. X-1<br> B. X-3<br> C. 5x-3<br> D. 5x-1
____ [38]

Answer:

(fog)(x)=f(g(x))=2(3x+2)−1=6x+4−1=6x+3=3(2x+1)

Answer is C

3 0
2 years ago
If x=12 in, y=16, and z=20 in, what is the surface area of the geometric shape formed by this net?
maria [59]

Given:

x = 12 in, y = 16 in and z = 20 in

To find:

The surface area of the geometric shape.

Solution:

Area of top rectangle = z × z

                                    = 20 × 20

Area of top rectangle = 400 in²

Area of middle rectangle = z × y

                                          = 20 × 16

Area of middle rectangle = 320 in²

Area of bottom rectangle = z × x

                                          = 20 × 12

Area of bottom rectangle = 240 in²

Area of left triangle = \frac{1}{2}yx

                                $=\frac{1}{2}\times16\times12

Area of left triangle = 96 in²

Area of right triangle = \frac{1}{2}yx

                                $=\frac{1}{2}\times16\times12

Area of right triangle = 96 in²

Surface area = 400 + 320 + 240 + 96 + 96

                     = 1152

The surface area of the geometric shape is 1152 in².

3 0
3 years ago
Find the volume of the cylinder. Round your answer to the<br> nearest tenth.<br> WILL GIVE BRAINLY
larisa86 [58]

Answer:

7 cm

Step-by-step explanation:

10 mm = 1cm

All you need to do is add 10mm + 6cm.

10mm = 1cm

So, 6cm + 1cm.

Therefore, it equals to 7cm.

3 0
2 years ago
Read 2 more answers
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