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vampirchik [111]
3 years ago
13

3) Solve the system of equations using elimination -9y + 4x - 2 = 0 12x - 5y + 38 = 0

Mathematics
1 answer:
timofeeve [1]3 years ago
7 0
The answer is X= -4 Y=-2
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The formula for the nth squaresquare number is Upper S Subscript n Baseline equals n squaredSn=n2. Use the formula to find the 9
AURORKA [14]

Answer:

9801

Step-by-step explanation:

Given the general term for calculating the nth term of a sequence;

Sn = n²

Where n is the number of terms.

To find the 99th term of the sequence using the nth term of the sequence;

Since we want to get the 99th term, this means that n = 99. Substituting n = 99 into the formula we will have;

S99 = 99²

S99 = 9,801

7 0
3 years ago
Find the slope of the line that passes through the pair of points (–1.75, 14.5) and (–1, 4.4). Round to the nearest hundredth if
Feliz [49]

For this case we have that by definition, the slope of a line is given by:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}}

Two points are needed through which the line passes:

(x_ {1}, y_ {1}): (- 1.75; 14.5)\\(x_ {2}, y_ {2}}: (- 1; 4.4)

Substituting:m = \frac {4.4-14.5} {- 1 - (- 1.75)}\\m = \frac {-10.1} {0.75}\\m = -13.46666666

Rounding:

m = -13.47

Answer:

m = -13.47

5 0
4 years ago
Read 2 more answers
Pls help!! i beg you
IRISSAK [1]

Answer:

fiesta size which is 5 times bigger than the normal size, and the fiesta size price is a little less than 3 times the normal price basicly if you bought 5 of those, you would get the same amount which. is a waist of money, therefore the fiesta size bag is a better deal to purchase

   

   

Hope It Helps!

8 0
3 years ago
The volume of a sphere with a diameter of 6
KiRa [710]

Answer:

113.1

Step-by-step explanation:

Formula: V=4/3pi radius^3

radius = 1/2 diameter

plug it in

3 0
3 years ago
Three sides of a fence and an existing wall form a rectangular enclosure. The total length of a fence used for the three sides i
ss7ja [257]
<span>Let the wall's length be y. So the fence parallel is also y.

We form the equation;
2x + y = 240

Now the area A is x*y, which is given as 5500.

We have 2 equations with 2 variables. Solve them and get the answer.

xy = 5500
2x + y = 240

Y = 5500/x

2x + (5500/x) = 240
2x^2 - 240x + 5500 = 0
x^2 - 120x + 2750 = 0
Work out the value(s) of x from above. </span>
5 0
3 years ago
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