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3 years ago

Find the value of the following expression:

Mathematics

2 answers:

AleksandrR [38]3 years ago

8 0

Answer:

why such complicated questions.....?

Step-by-step explanation:

sweet [91]3 years ago

4 0

Answer:

Step-by-step explanation:

(2⁸ ⋅ 3⁻⁵ ⋅ 6⁰)⁻² ⋅ (3⁻²/2³)⁴ ⋅ 2²⁸ =
2⁻¹⁶·3¹⁰·3⁻⁸·2⁻¹²·2²⁸ =
2⁻¹⁶⁻¹⁰⁺²⁸ · 3¹⁰⁻⁸ =
2⁰ · 3² =
1 · 9 =
9

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Sara is collecting signatures to pu on her towns ballot. So far, she has 432 signatures. This is 36% of the number of signatures

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Sara needs to collect 1200 signatures.

Step-by-step explanation:

Let,

x be the total number of signatures she needs to collect

Given percentage = 36%

Signature collected = 432

According of statement;

36% of x = 432

$\frac{36}{100}*x=432\\$

$\frac{36x}{100}=432\\Multiplying\ both\ sides\ by 100\\100*\frac{36x}{100}=432*100\\36x=43200\\Dividing\ both\ sides\ by\ 36\\\frac{36x}{36}=\frac{43200}{36}\\x=1200$

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Keywords: Percentage, Division

Learn more about percentages at:

#LearnwithBrainly

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3 years ago

Solve 9/10=z/8 . Round to the nearest tenth.

kompoz [17]

$\boxed {Question}$
$\frac{9}{10} = \frac{z}{8}$

$\boxed {Cross \ multiply}$
$10z = 8 \times 9$

$\boxed {Evaluate}$
$10z = 72$
$z = 72 \div 10$
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$\Longrightarrow \bf \ Answer \ : \ z = 7.2$

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3 years ago

What is the value of X?<br> Intersecting Chords (Lengths)

quester [9]

Answer:

x = 4

Step-by-step explanation:

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