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kumpel [21]
3 years ago
7

Question 1 Is (-2,-5) a solution of the function 4x - y = -13? O Solution Not a Solution ​

Mathematics
1 answer:
Rainbow [258]3 years ago
8 0

Answer:

No, -3 does not equal -13.

Step-by-step explanation:

First:

Substitute the x and y values.

Second:

Solve the equation

4(-2)-(-5)=-13

-8+5 does not equal -13

Finally:

Check your work

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What us the range of the function y=x^2
forsale [732]
[0, inf)

The least y-value the function can have is 0 because the square of a number cannot be negative.
3 0
3 years ago
What reaction did Pocahontas's people have to her helping the Jamestown colonists?
Scrat [10]

Answer:

They were very angry about her helping the colonists.

Step-by-step explanation:

7 0
3 years ago
Solve the question: (-4)+(-1)+2+5+...+x=437
Alex Ar [27]
The sequence is an arithmetic sequence with
a₁ = -4

d = a₂ - a₁
d = -1 - (-4)
d = -1 + 4
d = 3

an = x

Sn = 437


General formula in arithmetic sequence
Formula to find nth term
an = a₁ + d(n - 1)
Formula to find sum of sequence (sn)
Sn = n/2 (a₁ + an)

We have to make an equation system based on the problem
plug the numbers into the formula
First equation
an = a₁ + d(n - 1)
x = -4 + 3(n - 1)
x = -4 + 3n - 3
x = 3n - 7

Second equation
Sn = n/2 (a₁ + an)
n/2 (a₁ + an) = 437
n/2 (-4 + x) = 437
n(x -  4) = 874
xn - 4n = 874

Solve the equation system by subtitution method
Subtitute x with 3n - 7 in the second equation
xn - 4n = 874
(3n - 7)n - 4n = 874
3n² - 7n - 4n = 874
3n² - 11n - 874 = 0
(3n + 46)(n - 19) = 0
n = -46/3 or n = 19
Because the number of terms shouldn't be negative, -46/3 isn't required, so the value of n is 19.

Solve for x, back to the first equatin
x = 3n - 7
x = 3(19) - 7
x = 57 - 7
x = 50

The solution is 50
6 0
3 years ago
PLZ ANSWER PLZ PLZ PLZ HELP 1 QUESTION!!!
JulsSmile [24]

We first must find the value of angle z.


Angle z = 90° - 42°


Angle z = 48°


We now use the sine function to find y.


sin(48°) = 35/y


y = 35/sin(48°)


y = 47.0971455362


We now round off to two decimal places.


y = 47.10


I hope this helps....



8 0
3 years ago
4 Riley finds a recipe for bubble solution that uses 1 cup water, 2 cup dish soap,
Arada [10]

Answer:

1 cup

Step-by-step explanation:

the recipe calls for one cup of water per two cups of dish soap, so if she uses two cups of dish soap she should use one cup of water and one tablespoon of corn syrup.

4 0
3 years ago
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