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2 years ago

If the diameter of the circle is 24 cm, find its area correct to 1 decimal place.

Mathematics

1 answer:

Blababa [14]2 years ago

6 0

Answer:

452.4 cm^2

Step-by-step explanation:

Use the area formula A = πr². With d = 24 cm, r = 12 cm, and so the desired area is

A = π(144 cm^2) = 452.4 cm^2

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An equation is shown below:

bekas [8.4K]

$\quad \huge \quad \quad \boxed{ \tt \:Answer }$

$\texttt{Step 1: 18x − 42 = 2}$

$\texttt{Step 2: 18x = 44 }$

____________________________________

$\large \tt Solution \: :$

$\qquad \tt \rightarrow \: 6(3x - 7) = 2$

Step 1 -

$\qquad \tt \rightarrow \: 18x - 42 = 2$

[ distributive property ]

Step 2 -

$\qquad \tt \rightarrow \: 18x = 2 + 42$

$\qquad \tt \rightarrow \: 18x = 44$

Answered by : ❝ AǫᴜᴀWɪᴢ ❞

7 0

1 year ago

What is the length of segment AE?

nexus9112 [7]

Answer:

$AE=\frac{50}{3}\ units$

Step-by-step explanation:

step 1

In the right triangle ABC

Applying the Pythagoras Theorem fin the hypotenuse AC

$AC^{2} =AB^{2}+BC^{2}$

substitute

$AC^{2} =6^{2}+8^{2}$

$AC^{2} =100$

$AC =10\ units$

step 2

we know that

If two figures are similar, then the ratio of its corresponding sides is equal

$\frac{AB}{CD}=\frac{AC}{CE}$

substitute and solve for CE

$\frac{6}{4}=\frac{10}{CE}\\ \\CE=4*10/6\\ \\CE=\frac{20}{3}\ units$

step 3

Find the length of segment AE

AE=AC+CE

substitute the values

$AE=10\ units+\frac{20}{3}\ units=\frac{50}{3}\ units$

6 0

3 years ago

A protective cover for a wireless tablet has a height of 8 inches and base of 7 inches. What is the area of the cover?

RUDIKE [14]

So to find the answer of the area, you have to multiply 7 and 8 which would equal to 56.

6 0

3 years ago

Read 2 more answers

Given that WA = 5x – 8 and WC = 3x + 2, find WB. A. WB = 5 B. WB = 8 C. WB = 10 D. WB = 17

rodikova [14]

The rest of the question is the attached figure.
============================================
Δ AYW a right triangle at Y ⇒⇒⇒ ∴ WA² = AY² + YW²
And AY = YB ⇒⇒⇒ ∴ WA² = YB² + YW² → (1)
Δ BYW a right triangle at Y ⇒⇒⇒ ∴ WB² = BY² + YW² → (2)
From (1) , (2) ⇒⇒⇒ ∴ WA = WB →→ (3)
Δ CXW a right triangle at Y ⇒⇒⇒ ∴ WC² = CX² + XW²
And CX = XB ⇒⇒⇒ ∴ WC² = XB² + XW² → (4)
Δ BXW a right triangle at Y ⇒⇒⇒ ∴ WB² = XB² + XW² → (5)
From (4) , (5) ⇒⇒⇒ ∴ WC = WB →→ (6)
From (3) , (6)
WA = WB = WC
given ⇒⇒⇒ WA = 5x – 8 and WC = 3x + 2
∴ <span> 5x – 8 = 3x + 2</span>
Solve for x ⇒⇒⇒ ∴ x = 5
∴ WB = WA = WC = 3*5 + 2 = 17

The correct answer is option D. WB = 17