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PIT_PIT [208]
3 years ago
7

4x + 5y = 7

Mathematics
1 answer:
Papessa [141]3 years ago
8 0
Not sure if I’m understanding this wrong but for x you can multiply the top equation by -3 to get -12x-15y=-21 and the bottom by 4 to get 12x-8y=-48.
For y you can multiply the top equation by 2 to get 8x+10y=14 and the bottom equation by 5 to get 15x-10y=-60
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The value of a small airplane depreciates exponentially every year after it is
julia-pushkina [17]

Answer: the operation can be said as x( 576-68)t-5= x

Step-by-step explanation:

You can see this because I am smart and just am

7 0
2 years ago
​<br><br> f(1)=−6<br> f(2)=−4<br> f(n)=f(n−2)+f(n−1)<br> ​<br> f(n)=?
andriy [413]

The nth term of the sequence is 2n - 8

<h3>Equation of a function</h3>

The nth term of an arithmetic progression is expressed as;

Tn = a + (n - 1)d

where

a is the first term

d is the common difference

n is the number of terms

Given the following parameters

a = f(1)=−6

f(2) = −4

Determine the common difference

d = f(2) - f(1)

d = -4 - (-6)
d = -4 + 6

d = 2

Determine the nth term of the sequence

Tn = -6 + (n -1)(2)

Tn = -6+2n-2
Tn = 2n - 8

Hence the nth term of the sequence is 2n - 8

Learn more on nth term of an AP here: brainly.com/question/19296260

#SPJ1

5 0
1 year ago
Read 2 more answers
Find the difference. Write your answer in standard form.
vredina [299]

Answer:

7x² - 6x + 4

Step-by-step explanation:

(4x² - x + 6) - (-3x² + 5x + 2)

4x² - x + 6 + 3x² - 5x - 2

4x² + 3x² - x - 5x + 6 - 2

7x² - 6x + 4

3 0
3 years ago
Which function has two x-intercepts, one at (0, 0) and one at (4, 0)? f(x) = x(x − 4) f(x) = x(x + 4) f(x) = (x − 4)(x − 4) f(x)
Fofino [41]

If you want a polynomial to have the x-intercepts of your choice, you simply have to build a polynomial by multiplying pieces like (x-x_k) where x_k is the x-intercept you want.

So, if you want x-intercepts 0 and 4, you have to build the polynomial

(x-0)(x-4) = x(x-4)

5 0
3 years ago
Read 2 more answers
Simplify: (10*5+6)(13+2)+19
lianna [129]
The answer would be 859.  

<span><span><span><span><span><span>(10)</span><span>(5)</span></span>+6</span>)</span><span>(<span>13+2</span>)</span></span>+19
</span><span>=<span><span><span>(<span>50+6</span>)</span><span>(<span>13+2</span>)</span></span>+19
</span></span><span>=<span><span>56<span>(<span>13+2</span>)</span></span>+19
</span></span><span>=<span><span><span>(56)</span><span>(15)</span></span>+19
</span></span><span>=<span>840+19
</span></span><span>=<span>859

Hope this helps!!

</span></span>
7 0
3 years ago
Read 2 more answers
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