3 years ago

Help me with this pls

Mathematics

2 answers:

oksano4ka [1.4K]3 years ago

4 0

Answer:

x=9

Step-by-step explanation:

dyyfjfjsjujsjsivjsjicuejie82iu3828i$>÷>$>$>×&$:

ollegr [7]3 years ago

4 0

Answer:

x = 9

Step-by-step explanation:

Cross multiply:

2x = 18

x = 18/2

x = 9

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PLZ HELP ASAP!!!!! <img src="https://tex.z-dn.net/?f=" id="TexFormula1" title="" alt="" align="absmiddle" class="latex-formula">

AveGali [126]

The simplified expression of $$4 x \cdot \frac{1}{x^{-5}} \cdot x^{-3}$ is $4x^3$ .

Solution:

Given expression is $4 x \cdot \frac{1}{x^{-5}} \cdot x^{-3}$ .

To simplify the given expression.

$$\Rightarrow4 x \cdot \frac{1}{x^{-5}} \cdot x^{-3}$

Using exponent rule: $\frac{1}{a^{-m}}=a^m$

$$\Rightarrow4x \cdot x^{5}.x^{-3}$

Using another exponent rule: $a^m \cdot a^n=a^{m+n}$

$$\Rightarrow4x \cdot x^{5-3}$

$$\Rightarrow4x \cdot x^{2}$

Using exponent rule: $a^m \cdot a^n=a^{m+n}$

$$\Rightarrow4x^{1+2}$

$$\Rightarrow4x^3$

Hence the simplified expression of $$4 x \cdot \frac{1}{x^{-5}} \cdot x^{-3}$ is $4x^3$ .

8 0

3 years ago

Which decimal is equivalent to -3 1/8

denis23 [38]

Answer:

the correct answer is -3.125

Step-by-step explanation:

4 0

2 years ago

Write the slope-intercept form of the equation of a line parallel to y=-2/3x+12 that has a y-intercept of -13 (step by step)

USPshnik [31]

Answer:

y = -2/3x - 13

Step-by-step explanation:

The slope remains the same, but the y-intercept changes to -13

7 0

2 years ago

Write the expression in expanded form that is equivalent to 3(7d +4e)

pickupchik [31]

Answer:

21+4

Step-by-step explanation:

3 times 7=21

3 times4=12

21d+4e

4 0

2 years ago

Read 2 more answers

Daine simplified the expression below.

Dennis_Churaev [7]

Answer:

Step-by-step explanation:

8(1 + 2i) - (7 - 3i) = 8*1 + 8*2i + 7*(-1) - 3i*(-1)

= 8 + 16i -7 + 3i

= 8 - 7 + 16i + 3i

= 1 + 19i

Daniel forgot to multiply 2i by 8

3 0

3 years ago