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Komok [63]
3 years ago
7

Is 4(5c + 3) and 9c + 7 equivalent?

Mathematics
2 answers:
uysha [10]3 years ago
7 0

Answer:

Find the exact value using trigonometric identities.

20

c

+

12

Step-by-step explanation: 20 c + 12 c will give you your answer.

Otrada [13]3 years ago
3 0

Answer:

No sir  

Step-by-step explanation:

when you see  Parentheses beside a number it means your mutiplying

your answer would be: 20c + 12

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A scientist wants to know how many catfish are in
djverab [1.8K]

Answer:

105 catfish

Step-by-step explanation:

48 - 3 = 45

45 + 60 = 105

3 0
3 years ago
What would the answers to these be?
amm1812

The first equation, 8x - 9y = - 23

Obtain the equation in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = ( \frac{1}{2}, 3) and (x₂, y₂ ) = (- 4, - 1 )

m = \frac{-1-3}{-4-1/2} = (- 4)/- \frac{9}{2} = \frac{8}{9}

partial equation is y = \frac{8}{9} x + c

to find c substitute either of the 2 points into the partial equation

using (- 4, - 1 ), then

- 1 = - \frac{32}{9} + c ⇒ c = \frac{23}{9}

y = \frac{8}{9} x +\frac{23}{9} ← in slope- intercept form

the equation of a line in standard form is

Ax + By = C ( A is a positive integer and B, C are integers )

rearrange the slope- intercept equation into this form

multiply through by 9

9y =  8x + 23 ( subtract 9y and 23 from both sides )

8x - 9y = - 23 in standard form


4 0
3 years ago
The price of a flight was increased by 2% to £700. What was the price before the increase? Give your answer to the nearest penny
Mamont248 [21]

Answer:

686.27

Step-by-step explanation:

x + .02x = 700

1.02x = 700

x = 686.27

8 0
3 years ago
Edmund purchased a computer for $1,800 on a payment plan (month zero). Three months after he purchased the computer, his balance
trapecia [35]

Answer:

Well I can't make a table but I can explain the answer.

Step-by-step explanation:

So you have $1,800 on a payment plan.  In three months, the balance is 1,350.  So 1,800-1,350=450.  This means he paid $450 in three months.  450/3 is 150.  He pays $150 a month.  Then 2 months later, (5 months after purchase) he has balance is $1,050.  1,350-1,050=300.  300/2=150.  Further evidence of the fact that he pays 150 dollars a month.  This means that the 6th month, he will have $900 dollars left on the payment.  7th month... $850, 8th month... $600, 9th month... $450, 10th month... 300 dollars, 11th month... 150, and 12 month he will have paid off all of his computer.  Hope it helps, sorry it is so long.  Have a great day!  :D

6 0
3 years ago
Use special right triangle find the exact value of x. <br> X=?
swat32

Answer: 12

Step-by-step explanation:

3 0
3 years ago
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