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gavmur [86]
2 years ago
9

Is (-4, 2) a solution of 4x + 5y <_-7? Choose 1 answer: Yes or No

Mathematics
1 answer:
siniylev [52]2 years ago
5 0

Answer:

no

Step-by-step explanation:

substitute the (x,y) values into the inequality.

4(-4)+5(2) less than or equal to -7

-16+10≤-7

-6≤-7 not a valid answer so ((-4,2) is not a solution

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What expression is equivelent to 8-5(3x-7)
steposvetlana [31]

8 - 5(3x - 7)

8 - (5.3x - 5.7)

8 - (15x - 35)

8 - 15x + 35

43 - 15x

8 0
3 years ago
5/6 divided by 3????? Pls help
Oduvanchick [21]
5/6 divided by 3/1

5/6 *1/3
5/18
6 0
3 years ago
Read 2 more answers
2. Rainey graphed a function with exponential growth and an initial value of 15. Which of the following could represent the equa
Mars2501 [29]

Exponential equation are functions defined by y =ab^x

The equation that could represent Rainey graph must take the form y =15b^x

<h3>How to determine the equation</h3>

An exponential equation is represented as:

y =ab^x

Where:

  • a represents the initial value
  • b represents the rate

The initial value (a) is 15.

So, the equation becomes

y =15b^x

The graph is not given;

So, the equation cannot be determined.

Assume that the rate is 2.

Then the function would be: y =15(2)^x

Read more about exponential functions at:

brainly.com/question/11464095

6 0
1 year ago
Substatution and elimination
Salsk061 [2.6K]
Well using elimination is easy because they basically did it for you. 
4x-5y=-6
2x+5y=12
The postive 5y and negative 5y cancel out because -5y plus 5y is zero.
so you are left with
4x=-6
2x=12
Add these together
6x=18
divide both sides by 6 and Solve to find your x
x=3
Now we have to eliminate x to find y.
we multiply the second equation by -2 so it can cancel out so
(2x+5y=12)-2
-4x-10y=24
Add the equations together
4x-5y=-6
-4x-10y=24
You are left with -15y = 30
Solve for y
y = -2
So your final answer for the elimination would be 
(3,-2)
6 0
3 years ago
Please help asap!!!
Tatiana [17]

Answer:

w = 6

Step-by-step explanation:

ST = w + 6,

PR = w

From the diagram given, we can deduce that PR is the midsegment of ∆QST. Therefore, according to the midsegment theorem:

PR = ½ of ST

Plug in the values into the equation and solve for w.

w = \frac{1}{2}(w + 6)

w = \frac{w}{2} + 3 (distributive property of equality)

w - 3 = \frac{w}{2} (subtraction property of equality)

2(w - 3) = \frac{w}{2}*2 (multiplication property of equality)

2w - 6 = w

2w - 6 - 2w= w - 2w (subtraction property of equality)

- 6 = - w

Divide both sides by -1

6 = w

w = 6

5 0
3 years ago
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