3 years ago

How can i do substitution while multiplying

Mathematics

1 answer:

Vlad1618 [11]3 years ago

3 0

You multiply then substitute.

for instance- 2-4x5
2-20
-18

or

3x6-7
18-7
11

You might be interested in

Elio makes candles that are 14\text{ cm}14 cm14, start text, space, c, m, end text tall. Each candle burns 888 hours before goin

erastova [34]

Answer:

12 Hours

Step-by-step explanation:

h=21/14*8

h=12 hours

5 0

3 years ago

Read 2 more answers

Combine all the like terms on the right side. 0= x + )x+

Fittoniya [83]

Answer:

Where is it?

Step-by-step explanation:

5 0

3 years ago

What is the area of this polygon? Enter your answer in the box.

inna [77]

Area of Square/Rectangle-LxW
Area of triangle-BxH(divided by)2

Area of polygon=56

4 0

2 years ago

Read 2 more answers

Simplify the radical 7√7-2√28

Umnica [9.8K]

ANSWER

$3 \sqrt{7}$

EXPLANATION

The given radical is

$7 \sqrt{7} - 2 \sqrt{28}$

Remove the perfect square from the second radical.

$= 7 \sqrt{7} - 2 \sqrt{4 \times 7}$

$= 7 \sqrt{7} - 2 \sqrt{4} \times \sqrt{7}$

$= 7 \sqrt{7} - 2 \times 2 \times \sqrt{7}$

$= 7 \sqrt{7} - 4 \sqrt{7}$

Subtract the like radicals

$= 3 \sqrt{7}$

7 0

3 years ago

Read 2 more answers

Find the unknown angle for q, r, and t

Sav [38]

Answer:

r=90

q=45?

t=52

Step-by-step explanation:

3 0

2 years ago