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3 years ago

Simplify the expression by combining like terms. 15+12x−5x+4y−7

Mathematics

2 answers:

mezya [45]3 years ago

7 0

Answer:

7x+4y+8

Step-by-step explanation:

faltersainse [42]3 years ago

3 0

7x+4y+8 is the answer

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A =5, b = 12 c =?<br><br><br><br> Pls help I don’t know how to do this

nataly862011 [7]

Answer:

: Use the Pythagorean Theorem

${c}^{2} = {a}^{2} + {b}^{2}$

${c}^{2} = {5}^{2} + {12}^{2}$

${c}^{2} = 25 + 144$

${c}^{2} = 169$

$c = + 13$

6 0

3 years ago

WHAT IS IS SEMIMONTHLY SALARY IF HIS STARTING SALARY IS $57,600 ANNUALLY?

GalinKa [24]

Answer:

2,400

Step-by-step explanation:

57,600 divide by 12 = 4,800

semimonthly means twice a month. so 4,800 divided by 2 = 2,400

4 0

4 years ago

Adam buys a car for £18680 which depreciates in value at a rate of 2.5% per year. Work out how much Adam's car will be worth in

timofeeve [1]

Answer:

Adam's car will be 8,406£ in 22 years.

Step-by-step explanation:

I. Find the lose value of 2.5% car by

2.5/100 = x/18,680

46,700/100 = x

x = 467 or the lose value in 1st year.

II. Find the true value of Adam's car by

n year = 18,680 - 467(n)

1st = 18,680 - 467(1)

= 18,213 means if he sell his car now, he'll get 18,213£

22th = 18,680 - 467(22)

= 18,680 - 10,274

= 8,406£

That makes 8,406£ is the right answer.

Hope that help :)

4 0

3 years ago

When simplified, the expression (x Superscript one-eighth Baseline) (x Superscript three-eighths Basleline) is 12. Which is a po

timofeeve [1]

<h2>The required 'option C) 144' is correct.</h2>

Step-by-step explanation:

We have,

$(x^{\dfrac{1}{8}})(x^{\dfrac{3}{8}})=12$

To find, the possible value of x = ?

∴ $(x^{\dfrac{1}{8}})(x^{\dfrac{3}{8}})=12$

⇒ $x^{\dfrac{1}{8}+\dfrac{3}{8}}=12$

Using the exponential identity,

$a^{m} a^{n} =a^{m+n}$

⇒ $x^{\dfrac{1+3}{8}}=12$

⇒ $x^{\dfrac{4}{8}}=12$

⇒ $x^{\dfrac{1}{2}}=12$

Squaring both sides, we get

$(x^{\dfrac{1}{2}})^2=(12)^2$

⇒ $x^{{\dfrac{1}{2}}\times2}=144$

⇒ x = 144

∴ The possible value of x = 144

Thus, the required 'option C) 144' is correct.

5 0

3 years ago

Read 2 more answers

6 is a factor of<br> 133<br> 84<br> 116<br> 118

tatiyna

B.) 84
The reason why is because 6x14= 84

6 0

4 years ago