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3 years ago

6 × 46 = 24 × 16 True True False False

Mathematics

1 answer:

gladu [14]3 years ago

5 0

Answer:

False

Step-by-step explanation:

6x46 = 276

24x16 = 384

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What is vaule of y when x=4'5

Degger [83]

Answer:

$y = 2.096$ or $y = \frac{2\sqrt5+6}{5}}$

Step-by-step explanation:

Given

$y = \frac{4}{x} + \sqrt x + 0.2 - 5x$

$x = \frac{4}{5}$

Required

Find y

$y = \frac{4}{x} + \sqrt x + 0.2 - 5x$

Substitute $x = \frac{4}{5}$

$y = \frac{4}{4/5} + \sqrt{4/5} + 0.2 - 5 * 4/5$

$y = 5 + \sqrt{4/5} + 0.2 - 4$

Collect like terms

$y = \sqrt{4/5} + 5 + 0.2 - 4$

$y = \sqrt{\frac{4}{5}} + 1.2$

Split the surd

$y = \frac{\sqrt4}{\sqrt5}} + 1.2$

$y = \frac{2}{\sqrt5}} + 1.2$

Rationalize

$y = \frac{2\sqrt5}{\sqrt5*\sqrt5}} + 1.2$

$y = \frac{2\sqrt5}{5}} + 1.2$

Take LCM and add

$y = \frac{2\sqrt5+1.2*5}{5}}$

$y = \frac{2\sqrt5+6}{5}}$

or solve as:

$y = \frac{2*2.24+6}{5}}$

$y = \frac{10.48}{5}$

$y = 2.096$

7 0

3 years ago

Write a <img src="https://tex.z-dn.net/?f=y%3D%5Cfrac%7B4%7D%7B5%7Dx-2" id="TexFormula1" title="y=\frac{4}{5}x-2" alt="y=\frac{4

erastova [34]

Answer:

4x-5y=10

Step-by-step explanation:

3 0

3 years ago

Write the Arabic value of MDCCXLIV

iris [78.8K]

M = 1,000

D = 500

C = 100

L = 50

X = 10

V = 5

I = 1

MDCCXLIV

M = 1,000

DCC = 500 + 100 + 100 = 700 (smaller after larger, then adding)

XL = 50 - 10 = 40 (smaller before bigger, then subtraction)

IV = 5 - 1 = 4 (smaller before bigger, then subtraction)

<h3>MDCCXLIV = 1,000 + 700 + 40 + 4 = 1,744</h3>

6 0

4 years ago

1) Solve the following System of Equations by Graphing. Label the solution and all intercepts. (5 points)

Iteru [2.4K]

Answer:

(-0.6 , -5.2)

Step-by-step explanation:

4x-2y=8

y=12x+2

just graph the line of each equation of the system and then locate the

intersection point

the coordonates of that point are pair solutio to the system

check the picture below for the graph.

7 0

3 years ago

Write 2^8 * 8^2 * 4^-4 in the form 2^n

Eva8 [605]

The given expression 2^8 * 8^2 * 4^-4 can be written in the exponential form 2^n as 2^6.

<h3>What are exponential forms?</h3>

The exponential form is a more convenient way to write repetitive multiplication of the same integer by using the base and its exponents.

<u>For example:</u>

If we have a*a*a*a, it can be written in exponential form as:

=a^4

where

a is the base, and
4 is the power.

The power in this format reflects the number of times we multiply the base by itself. The exponent is also known as the index or power.

From the information given:

We can write 2^8 * 8^2 * 4^-4 in form of 2^n as follows:

$\mathbf{= 2^8\times (2^3)^2 \times (2^2)^{-4} }$

$\mathbf{= 2^8\times (2^6) \times (2^{-8}) }$

$\mathbf{= 2^{8+6+(-8)}}$

$\mathbf{= 2^{6}}$

Therefore, we can conclude that by using the exponential form, the given expression 2^8 * 8^2 * 4^-4 in the form 2^n is 2^6.

Learn more about exponential forms here:

brainly.com/question/8844911

#SPJ1

4 0

2 years ago