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Firdavs [7]
4 years ago
11

Work out xz and qr need asap​

Mathematics
1 answer:
Korvikt [17]4 years ago
8 0

Answer:

see explanation

Step-by-step explanation:

Since the triangles are similar then the ratios of corresponding sides are equal

(a)

\frac{xPR}{XZ} = \frac{PQ}{XY} , substitute values

\frac{6.5}{XZ} = \frac{7.2}{18} ( cross- multiply )

7.2XZ = 117 ( divide both sides by 7.2 )

XZ = 16.25 cm

---------------------------------------

(b)

\frac{QR}{YZ} = \frac{PQ}{XY} , substitute values

\frac{QR}{17} = \frac{7.2}{18} ( cross- multiply )

18QR = 122.4 ( divide both sides by 18 )

QR = 6.8 cm

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What is - √105 to the nearest integer and nearest tenth?
Vlad [161]

Answer:

[tex]-\sqrt{105}=10.2[/text]

Step-by-step explanation:

We are asked to find the value of [tex]-\sqrt{105}[/text] to the nearest tenth.

Using calculator we find the value if [tex]-\sqrt{105}[/text] which comes out to be 10.24

Hence

[tex]-\sqrt{105}=10.2[/text]

Rounded to nearest tenth decimal .

4 0
4 years ago
The base of a rectangular prism has an area of 12 square cm. The height of the rectangular prism is 3. What is the volume in cub
Firdavs [7]

Answer:

volume = 36 cm³

Step-by-step explanation:

The volume of a rectangular prism = lwh

where

w = width

l = length

h = height

The base of a rectangular prism is a rectangle and the area of a rectangle is the product of length and width. Therefore,

base area of the rectangular prism = length × width

base area = lw

Base area of the rectangular prism =  12 cm²

Recall, the formula of the volume of a rectangular prism is the product of the length, width and height.

volume  = lwh

substitute lw value in the formula above

volume = 12 × 3

volume = 36 cm³

7 0
3 years ago
Please help me on this one.
EleoNora [17]
3(j+4)-9=9
3j + 12 -9 =9
3j +3 =9
3j =6
j=2
7 0
3 years ago
Read 2 more answers
Solve the equation x^2-3x-10=0 by factoring
Molodets [167]

Answer:

Step-by-step explanation:

hello :

x²-3x-10=0  means : (x-5)(x+2)=0

x-5=0 or x+2=0

conclusion two solutions : 5 and -2

6 0
3 years ago
I GIVE BRAINLISTS!
const2013 [10]

Answer:

C. 17

Step-by-step explanation:

2 + 3n

= 2 + 3*5 ( Plug n = 5)

= 2 + 15

= 17

6 0
3 years ago
Read 2 more answers
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