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Stolb23 [73]
3 years ago
8

An expression is Show : 6x(4+2x4)+10 what is the value of the expression

Mathematics
1 answer:
mel-nik [20]3 years ago
5 0
<span> 6x(4+2x4)+10
</span><span> 6x(4+8)+10
 6x X 12 + 10
 72x + 10</span>
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If the points A(x,2), B(-3, -4) and C(7, -5) are collinear, then find the value of x
DochEvi [55]

Answer:

x = -63

Step-by-step explanation:

If the points A(x,2), B(-3, -4), and C(7, -5) are collinear, the line that passes B and C, also passes A.

The line passes B and C has the form of y = ax + b

=> -4  = a(-3) + b

    -5  = a(7) + b

=> Subtraction 1st equation from 2nd equation, we have:

    -1 = 10a

=> a = -1/10

=> b = -4 + 3(-1/0) = -43/10

=> This line has form of y = (-1/10)x -43/10

This line passes A(x, 2)

=> 2 = (-1/10)x - 43/10

=> 2 + 43/10 = (-1/10)x

=> 63/10 = (-1/10)x

=> x = -63

Hope this helps!

3 0
3 years ago
$200 at 9% compounded semiannually for 2 years
Sav [38]

Answer:

Your answer is on the picture

Step-by-step explanation:

8 0
2 years ago
Solve for r. 1,2r-3=3(4-3,2r)
Helen [10]

Answer:

0.68865278

Step-by-step explanation:

7 0
2 years ago
Caleb has an offer from a credit card issuer for 0% APR for the first 30 days and 17.68%
svetlana [45]

Solution:- Answer is 19.33%

Annual percentage rate (APR) is the yearly rate for a price which have to pay for borrowing money through credit card.

Here Caleb has an offer from a credit card issue for i=0% APR for the first 30 days.

now, effective interest rate for n= 30 days  

=r=(1+\frac{i}{n} )^n-1\\\Rightarrow\ r=(1+\frac{0}{30} )^{30}-1\\\Rightarrow\ r=(1+0)^{30}-1=1-1=0

After 30 days APR =17.68%=0.1768

n=365-30=335 days

now the effective interest rate for n=335 days

=r=(1+\frac{i}{n} )^n-1\\\Rightarrow\ r=(1+\frac{0.1789}{335} )^{335}-1\\\Rightarrow\ r=(1+0.000527)^{335}-1=(1.000527)^{335}-1=1.1933-1=0.1933

=19.33%

So the effective interest rate for 365 days =0+19.33% =19.33%

So fourth option is correct.

6 0
3 years ago
Read 2 more answers
What is the area of my lawn if it measures 4m x 4.5m? 18 m2
Nadusha1986 [10]

Answer:

17m

Step-by-step explanation:

Add up 4m and 4.5m. 8.5

Multiply that number by 2. 17

6 0
2 years ago
Read 2 more answers
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