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3 years ago

2(3x-5)=8 Solve equation

Mathematics

2 answers:

tangare [24]3 years ago

8 0

Answer:

6x-10=8

6x=18

x=3 hence answer is 3

ANTONII [103]3 years ago

6 0

Answer:

2(3x-5)=8

Step-by-step explanation:

Divide both sides by 2.

3x-5= 8/2

simplify 8/2 to 4.

3x-5=4

Add 5 to both sides.

3x=4+5

simplify 4+5 to 9.

3x=9

divide both sides by 3.

x= 9/3

simplify 9/3 to 3.

X=3

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Look at the image HELP

Whitepunk [10]

Answer:

Option (3)

Step-by-step explanation:

In a right triangle,

Cosine rule → $cos(\theta)=\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

Sine rule → $sin(\theta)=\frac{\text{Opposite side}}{\text{Hypotenuse}}$

In the given triangle,

By cosine rule,

$cos(h)=\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

$cos(h)=\frac{z}{x}$

Or cos(h°) = z ÷ x

Therefore, Option (3) will be the answer.

7 0

3 years ago

Why is 3/4 greater thab 11/16 how can i be sure

Delicious77 [7]

You can make them have the same denominator and then compare

$( \frac{3}{4}) ( \frac{16}{16}) = \frac{48}{64}$

$(\frac{11}{16})( \frac{4}{4}) = \frac{44}{64}$

so as you can see, $\frac{3}{4} is \frac{4}{64} bigger than \frac{11}{16}$

5 0

3 years ago

Is -3 a natural number a whole number a integer a rational number or irrational number

BaLLatris [955]

Answer:

-3 is a rational integer.

Step-by-step explanation:

An integer is a superset of the whole numbers that includes the negated values as well as 0.

A rational number is simply anything that can be expressed as a fraction.

-3 is by these definitions, a negated 3, and any non fractional number can be expressed as a fraction.

-3 is not a natural number, as that is the set of numbers {1, 2, 3, 4, 5, ... etc} and -3 is not a whole number, as that is the set of numbers {0, 1, 2, 3, 4, ... etc}.

And -3 is also not an irrational number since it can be expressed as a fraction.

Thus, -3 is a rational integer.

Cheers.

7 0

3 years ago

Convert 1 cal/(m^2 * sec * °C) into BTU/(ft^2 * hr * °F)

Crazy boy [7]

Answer:

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=0.03926\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

Step-by-step explanation:

To find : Convert $1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}$ into $\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

Solution :

We convert units one by one,

$1\text{ m}^2=10.7639\text{ ft}^2$

$1\text{ sec}=\frac{1}{3600}\text{ hour}$

$1\text{ cal}=0.003968\text{ BTU}$

Converting temperature unit,

$^\circ C\times \frac{9}{5}+32=^\circ F$

$1^\circ C\times \frac{9}{5}+32=33.8^\circ F$

So, $1^\circ C=33.8^\circ F$

Substitute all the values in the unit conversion,

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=\frac{0.003968}{10.7639\times \frac{1}{3600}\times 33.8}\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=\frac{0.003968}{0.101061}\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

$1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=0.03926\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

Therefore, The conversion of unit is $1\ \frac{\text{cal}}{m^2\times sec\times ^\circ C}=0.03926\frac{\text{BTU}}{ft^2\times hr\times ^\circ F}$

3 0

3 years ago

4. In Ghana the high temperatures in degrees Fahrenheit for five days in January were -14°

S_A_V [24]

Answer:

Step-by-step explanation:

5 0

3 years ago