3 years ago

Help! I don't understand this

Mathematics

1 answer:

olchik [2.2K]3 years ago

3 0

PQ=5i-4j 3QR+PQ-PQ=11i-4j-(5i-4j)=6i

3QR=6i QR=2i

R=Q+2i R=(4, 1)

You might be interested in

A rope to length 30m is divided in the ratio 2:3. calculate the length of the longest

Vlada [557]

longest part = 18 m

add the parts of the ratio 2 + 3 = 5

divide 30 by 5 to find the value of 1 part of the ratio

$\frac{30}{5}$ = 6 ← 1 part

2 parts = 2 × 6 = 12 m

3 parts = 3 × 6 = 18 m ← longest part

8 0

3 years ago

Read 2 more answers

Mr.Bush has a rectangular vegetable garden that is 6 meters and 5 meters wide. What is the area of his garden?

lianna [129]

30 square meters that is the area

8 0

4 years ago

Read 2 more answers

Karl is making a pot of chili. The recipe calls for 3/8

olganol [36]

Answer:

He should use $\frac{3}{16}$ cups of chili powder.

Step-by-step explanation:

Given,

The total quantity of chili powder = $\frac{3}{8}$ cups,

Also, only half of the chilli powder is used,

So, the used quantity of chilli powder = $\frac{1}{2}\times \frac{3}{8}$

$=\frac{3}{16}$ ( Multiplication of fractions ),

Hence, he should use $\frac{3}{16}$ cup of chili powder.

5 0

3 years ago

Read 2 more answers

The population of a town was 25,000 people. Then 3,200 people moved away. What was the percent of decrease?

AVprozaik [17]

Answer:

12.8 %

Step-by-step explanation:

(3200)/(25000) *100

7 0

3 years ago

Due tonight Please help me 20 points!!

Gala2k [10]

Answer:

the table goes:

12 -> 7.50

13 ->8.0

15 -> 9.0

16 -> 9.5

Step-by-step explanation:

a) $15

b) 25 bagels

5 0

3 years ago

Help! I don't understand this​

Help! I don't understand this