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Nana76 [90]
4 years ago
6

Plz answer this question

Mathematics
1 answer:
Fed [463]4 years ago
3 0

Answer:

x = 12, y=7

x=30, y=25

x=15, y=10

Step-by-step explanation:

We have :  y = x - 5

x = 12  then y = 7,     y = 12 - 5 = 7

x = 30     25 = x - 5,   x = 25 + 5 = 30

x = 15,  y = 15 - 5 = 10,  y = 10

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The fall of the Zhou dynasty began a period referred to as __________.
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I need the help as soon as possible
Minchanka [31]

Answer:

a is true

Step-by-step explanation:

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3 years ago
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Please solve with explanation I’ve been asking all day (this is not a multiple choice question)
Anastaziya [24]

Answer:

a) SA = 522.9~cm^2

b) V_{cone} = 670.2~cm^3

c) V_{empty} = 1340.4~cm^3

Step-by-step explanation:

a)

For a cone,

SA = \pi r (L + r)

where L = slant height

L = \sqrt{r^2 + h^2}

We have r = 8 cm; h = 10 cm

L = \sqrt{(8~cm)^2 + (10~cm)^2}

L = \sqrt{164~cm^2}

SA = (\pi)(8~cm)(\sqrt{164~cm^2} + 8~cm)

SA = 522.9~cm^2

b)

V_{cone} = \dfrac{1}{3}\pi r^2 h

V_{cone} = \dfrac{1}{3}(\pi)(8~cm)^2(10~cm)

V_{cone} = 670.2~cm^3

c)

V_{cylinder} = \pi r^2 h

empty space = volume of cylinder - volume of cone

V_{empty} = V_{cylinder} - V_{cone}

V_{empty} = \pi r^2 h - \dfrac{1}{3}\pi r^2 h

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3 0
3 years ago
In the diagram below, LATE is an isosceles trapezoid with LE ≅ AT , LA = 24, ET = 40, and AT = 10. Altitudes LF and AG are drawn
weqwewe [10]

Answer:

6

Step-by-step explanation:

From the Trapezoid attached :

EF = GT

FG = LA

LE = AT = 10

LA = 24 ; FG = 24

FG + EF + GT = 40

Let : EF and GT = x

FG + 2x = 40

24 + 2x = 40

2x = 40 - 24

2x = 16

x = 16 ÷ 2 = 8

Hence, EF = GT = 8

Using Pythagoras :

Opposite² = hypotenus² - Adjacent²

LF² = LE² - FE²

LF² = 10² - 8²

LF² = 100 - 64

LF² = 36

LF = √36

LF = 6

4 0
3 years ago
there are 60 boys and 72 girls in a school. the principle wants to divide the students into gender-specific groups ( all boys or
Tamiku [17]
Hello there,
You want to split them into gender specific groups.
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The answer will be shown in the picture
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