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4 years ago

Any answers on this?

Mathematics

2 answers:

anygoal [31]4 years ago

6 0

Perimeter is the distance all around the triangle, so take the side lengths and add them up in an expression.

(2x) + (4x - 2) + (3x - 1)

Combine like terms.

9x - 3

Your answer is D) 9x - 3.

Dafna11 [192]4 years ago

4 0

9x^3 -3 is the answer

You might be interested in

6x=12 with explanation plz

lord [1]

Answer:

X = 2

Step-by-step explanation:

6(2) = 12

6 X 2 = 12

4 0

3 years ago

Que alguien me ayude cuanto hace q yo sali de escuela

swat32

Answer:

a=20 m²

b=21 cm²

c=36 dm²

Step-by-step explanation:

A) 12²+16²=a²

144+256=a²

400=a²

√400=a

a=20

B) 28²+b²=35²

784+b²=1225

b²=1225-784

b²=441

b=√441

b=21

C) c²+15²=39²

c²+225=1521

c²=1296

c=√1296

c=36

7 0

3 years ago

3. Sam and Tim each have savings accounts. Every month they each put in some of their

Setler [38]

Answer:

$y = 30x +50$ --- Sam

$y = 20x +80$ --- Tim

Step-by-step explanation:

Given

Sam Tim

х --- f(x) --------------- g(x)

1 --- 80 --------------- 100

2 --- 110 --------------- 120

3 --- 140 --------------- 140

4 --- 170 -------------- 160

Required

Determine the y value

y value implies the equation of the table

Calculating the equation of Sam

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (1,80)$

$(x_2,y_2) = (4,170)$

Next, we calculate the slope (m)

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

$m = \frac{170 - 80}{4 - 1}$

$m = \frac{90}{3}$

$m = 30$

Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

$y - 80 = 30(x - 1)$

$y - 80 = 30x - 30$

Make y the subject

$y = 30x - 30 + 80$

$y = 30x +50$

Calculating the equation of Tim

First, we need to take any corresponding values of x and y

$(x_1,y_1) = (1,100)$

$(x_2,y_2) = (4,160)$

Next, we calculate the slope (m)

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

$m = \frac{160 - 100}{4 - 1}$

$m = \frac{60}{3}$

$m = 20$

Next, we calculate the line equation using:

$y - y_1=m(x-x_1)$

$y - 100 = 20(x - 1)$

$y - 100 = 20x - 20$

Make y the subject

$y = 20x - 20+100$

$y = 20x +80$

7 0

3 years ago

H - 16 < -24<br> solve this expression

Vikki [24]

Answer:

h < -8

Step-by-step explanation:

Add -16 to both sides to solve for h.

h - 16 + 16 < -24 + 16

h < -8

4 0

3 years ago

How do you use math every day?

puteri [66]

Answer:

Figuring out distance, time and cost for travel

shopping for the best price

Step-by-step explanation:

7 0

3 years ago