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3 years ago

Solve the following equation x-5.5=4

Mathematics

2 answers:

Fynjy0 [20]3 years ago

5 0

Solution: X=9.5

Explanation: x-5.5=4 —> x=4+5.5 —> x=9.5

Brilliant_brown [7]3 years ago

3 0

Solution: X=9.5

Explanation: x-5.5=4 —> x=4+5.5 —> x=9.5

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Factor the polynomial 3x4 – 2x2 + 15x2 - 10 by grouping.

prohojiy [21]

Answer:

see explanation

Step-by-step explanation:

Given

3 $x^{4}$ - 2x² + 15x² - 10

Factor the first/second and third/fourth terms )

= x²(3x² - 2) + 5(3x² - 2) ← factor out (3x² - 2) from each term

= (3x² - 2)(x² + 5)

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Step 3: 2x > 10 Step 4: x > 5 What property justifies the work between step 3 and step 4? A. division property of inequali

BigorU [14]

Answer:

A. Division property of inequality.

Step-by-step explanation:

Let be $2\cdot x > 10$ , we proceed to show the appropriate procedure to step 4:

1) $2\cdot x >10$ Given

2) $x > 5$ Compatibility with multiplication/Existence of multiplicative inverse/Associative property/Modulative property/Result. (Division property of inequality)

In consequence, the division property of inequality which states that:

$\forall\, a, b, c \in \mathbb{R}$ . If $c > 0$ , then:

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But if $c < 0$ , then:

$a> b\,\longrightarrow a\cdot c < b\cdot c \,\lor\, a b\cdot c$

Hence, correct answer is A.

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Solve the inequality 13 > 3x + 1

Ivenika [448]

4 > x

step by step explanation:

13 > 3x + 1
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Please help and thank you

Mariana [72]

Answer:

B. l = (S - πr^2) / πr

Step-by-step explanation:

S = πrl + πr^2 solve for l

πrl = S - πr^2

l = (S - πr^2) / πr

Answer is B. l = (S - πr^2) / πr

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