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Tom [10]
3 years ago
7

Solve the system of linear equations by substitution. y = x y = 2x - 1

Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
8 0

X=1

Y=1

Step-by-step explanation:

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

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Which value of x is in the solution set of the following inequality?
andreyandreev [35.5K]

Answer:

C. 1

Step-by-step explanation:

Multiply every answer until you get an answer more than 6, and in this case it was C

4 0
3 years ago
How do I solve this?
vodomira [7]
I’m assuming what you’re asking here is how to *factor* this expression. For that, let’s rearrange the expression into a more familiar form:

-c^2-4c+21

From here, we’ll factor out a -1 so that we have:

-(c^2+4c-21)

Let’s focus on the quadratic expression inside the parentheses. To find our factors (c + x)(c + y), we’ll need to find two terms x and y that multiply together to make -21 and add together to make 4. It turns out that the numbers -3 and 7 work out perfectly for that purpose (-3 x 7 = -21 and 7 + (-3) = 4), so substituting them in for x and y, we have:

(c + (-3))(c + 7)
(c - 3)(c + 7)

And adding back on the negative from a few steps earlier:

-(c - 3)(c + 7)
7 0
3 years ago
I’ve tried to work this out but I can’t get it figured out. Can someone help me
Bas_tet [7]
G(2) = -4(2) = -8
f(g(2)) = (-8)^2 = 64

answer 
64
5 0
3 years ago
Least to greatest 0.4, 5/8, 74%, 3/5
SashulF [63]

Answer:

0.4,3/5,5/8,74%

Step-by-step explanation:

Change them all into decimals.

Get 0.4,0.625,0.74,0.6

Then reorder and see what their original values were

5 0
3 years ago
16y=14+9y please answer 23 points
NeTakaya

Answer:

<h2>y = 2</h2>

Step-by-step explanation:

16y=14+9y\qquad\text{subtract}\ 9y\ \text{from both sides}\\\\16y-9y=14+9y-9y\\\\7y=14\qquad\text{divide both sides by 7}\\\\\dfrac{7y}{7}=\dfrac{14}{7}\\\\y=2

4 0
3 years ago
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