Ask question

Ask question

All categories

3 years ago

11

Complete each ordered pair so that it is a solution of the given linear equation. x-3y= -4; ( ,1), (11, ) It says the first orde

red pair is ( ,1)

1 answer:

LuckyWell [14K]3 years ago

6 0

Answer: (-1,1) ; (11,5)

Step-by-step explanation:

x-3y=-4

x-3(1)=-4

x-3=-4

x=-4+1

x=-1

x-3y=-4

11-3y=-4

-3y=-4-11

-3y=-15

y=-<u>15=</u>5

-3

You might be interested in

⚠️10 points⚠️

Lostsunrise [7]

Answer:

8.9

Step-by-step explanation:

The distance between each point is 8.9, hope this helps!

7 0

3 years ago

If PQR is a triangle,given that /PQ\=15m, /QR\=17m and /RP\=18m.Find the area of the triangle to the nearest whole number.

nydimaria [60]

Answer:

118.3 m²

Step-by-step explanation:

Step 1. Calculate the <em>semiperimeter</em> (s).

s = (p + q + r)/2

s = (17 + 18+ 15)/2

s = 50/2

s = 25 m

===============

Step 2. Calculate the <em>area</em> (A).

Use <em>Heron’s formula</em>:

$A = \sqrt{s(s-p)(s-q)(s-r)}$

$A = \sqrt{25(25-17)(25-18)(25-15)}$

$A = \sqrt{25\times8\times7\times10}$

$A = \sqrt{14 000}$

$A = 20\sqrt{35}$

A = 118.3 m²

3 0

3 years ago

What is an algebra?

Angelina_Jolie [31]

In its most general form, algebra is the study of mathematical symbols and the rules for manipulating these symbols; it is a unifying thread of almost all of mathematics. It includes everything from elementary equation solving to the study of abstractions such as groups, rings, and fields.

8 0

3 years ago

Graph f(x)= x^3 + x^2

ozzi

I would give the answer but there are to many numbers and I don't want you to get confused by the answer I give you

8 0

3 years ago

How do you construct a 112.5 degree angle? (step by step) Please help =)

KATRIN_1 [288]

First you take a protractor and a pencil
next, you draw a horizontal line (red)
then find the value of the angle, and draw a line with the matched value (green)
please look at the image

5 0

3 years ago