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2 years ago

-2x+4y=28 -3x +2y = 6 Solve for x

Mathematics

1 answer:

NNADVOKAT [17]2 years ago

3 0

Answer:

x=4, y=9

Step-by-step explanation:

Solve with substitution.

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2. In the figure, is an exterior angle to . complete sentences

Cerrena [4.2K]

Answer:

a)180-57-20=103

b)180-103=77

Step-by-step explanation

6 0

3 years ago

Bob sets the price of the plants according to their height in inches. A plant that is 9.5 inches high costs $2.28 in his store.

alekssr [168]

2.28 devide 9.5
=0.24

7 0

3 years ago

Please help, will be greatful and give brainliest!

Bond [772]

Reflection line of reflection y=2
Not too sure could be rotation maybe

6 0

3 years ago

How can I find the volume of a cone 9 radius and 18 height

Anastasy [175]

Answer:

V = 486 $\pi$ , or approx. 1,526.814

Step-by-step explanation:

V = $\pi$ *r²*(h/3)

plug in the numbers: V = $\pi$ * (9)² * (18/3)

simplify: V = $\pi$ * 81 * 6

simplify: V = 486 $\pi$ , or approx. 1,526.814

6 0

3 years ago

Read 2 more answers

Need help for question 8 and 9. I need the equation that’s passes through the points!

dsp73

Answer:

Step-by-step explanation:

Question 8

Let the equation of a line passing through two points $(x_1,y_1)$ and $(x_2,y_2)$ is given by,

y = mx + b

Here, m = slope and y-intercept = b

Since, m = $\frac{y_2-y_1}{x_2-x_1}$

For two points (1, 4) and (5, 8),

m = $\frac{8-4}{5-1}$

m = 1

Equation will be,

y = (1)x + b

y = x + b

Since, this line passes through (1, 4),

4 = 1 + b

b = 3

Therefore, equation of the line will be,

y = x + 3

Question 9

Let the equation is y = mx + b

m = $\frac{y_2-y_1}{x_2-x_1}$

For two points (2, 10) and (6, 4)

m = $\frac{10-4}{2-6}$

m = $-\frac{3}{2}$

By substituting the value of 'm' in the equation,

y = $-\frac{3}{2}x+b$

Since, this line passes through (2, 10)

10 = $-\frac{3}{2}(2)+b$

b = 10 + 2

b = 12

Therefore, equation of the line will be,

$y=-\frac{3}{2}x+12$

4 0

3 years ago