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3 years ago

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Explanation on linear equations

1 answer:

Usimov [2.4K]3 years ago

5 0

y=mx+b where m is the slope and b is the y intercept.

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Is graphite all of the following?

AnnZ [28]

Answer: Yes!

Step-by-step explanation:

Yes, graphite is composed of 100%carbon. With this, can we say that graphite is an element or compound of carbon? Compound is composed of two or more elements combined in a substance in definite proportions, in the form of molecules held together by chemical bonds.

6 0

3 years ago

andreev551 [17]

Answer:

see explanation

Step-by-step explanation:

Part 1

The n th term of a geometric sequence is

$a_{n}$ = a $(r)^{n-1}$

where a is the first term and r the common ratio

Given $a_{6}$ = 128, then

a $(2)^{5}$ = 128, that is

32a = 128 ( divide both sides by 32 )

a = 4 ← first term

Part 2

$a_{21}$ = 4 $(2)^{20}$ = 4 × 1048576 = 4194304

6 0

3 years ago

Perform the indicated operation:<br> -5(4a- 6b)

LuckyWell [14K]

Answer:

-20a+30b

.......................

8 0

2 years ago

Rewrite in simplest rational exponent form <img src="https://tex.z-dn.net/?f=%5Csqrt%7Bx%7D%20%2A%20%5Csqrt%5B4%5D%7Bx%7D" id="T

Shkiper50 [21]

The given expression written in the simplest rational exponent form is $x^{\frac{3}{4} }$

<h3>Writing an Expression in Exponent form</h3>

From the question, we are to write the given expression in exponent form

The given expression is

$\sqrt{x} \times \sqrt[4]{x}$

In exponent form,

$\sqrt{x} = x^{\frac{1}{2} }$

and

$\sqrt[4]{x} = x^{\frac{1}{4} }$

Thus, $\sqrt{x} \times \sqrt[4]{x}$ becomes

$x^{\frac{1}{2} } \times x^{\frac{1}{4} }$

Applying the multiplication law of indices, we get

$x^{\frac{1}{2} + \frac{1}{4} }$

= $x^{\frac{3}{4} }$

Hence, the given expression written in the simplest rational exponent form is $x^{\frac{3}{4} }$

Learn more on Writing an expression in exponent form here: brainly.com/question/4421494

#SPJ1

5 0

1 year ago

Find the value of x in each case.

velikii [3]

Answer:

x=11

Step-by-step explanation:

Due to angles DCA and CAB being Alternate Interior Angles, we know that they will be equal. This means that

$DCA=33$ °

Next, we can find the measure of the angle DCE.

Angles BCE and BCA are supplementary. This means that they will add together to be 180°

This means that 180-BCE=BCA

Which means $BCA=180-5x$

As all of the angles in a triangle must add together to be 180 degrees, we can set up the following equation

$33+180-5x+2x=180\\213-3x=180\\3x=33\\x=11$

3 0

3 years ago

Read 2 more answers