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3 years ago

Help 30 points please

Mathematics

1 answer:

polet [3.4K]3 years ago

8 0

Answer:

x = 1 or

x = - 7

To get rid of the square root. Isolate the square root and it's multiple. Then square both sides to get rid of it. Don't forget to square the multiple, in this case - 2 becomes 4. Solve for x like you normally do.

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Jamal has a pair of shoes that have a total mass of 960 grams and four identical books that have a total mass of 2 kilograms. Wh

Andreyy89

Answer: One book has a greater mass.

Step-by-step explanation:

Jamal has a pair of shoes with a total mass of 960 grams. This means that each shoe has a mass of:

960 grams ÷ 2= 480 grams per shoe.

Jamal also has four identical books with a total mass of 2 kilograms. Note that 1000 grams make a kilograms. Therefore 2 kilograms will be (2 × 1000 grams) = 2000 grams.

Each book will have a mass of:

2000 ÷ 4 = 500 grams per book.

One shoe has a mass of 960 divided 2 = 480 grams . One book has a mass of 2000 divided 4 = 500 grams . So one book has a greater mass.

8 0

3 years ago

What is the surface area of the net below? 4 cm 7.2 cm 12 cm

Ulleksa [173]

Answer: 163.2 cm^2

(4*7.2) + (7.2*12) + (12*4)

28.8 + 86.4 + 48

163.2

If that is the answer your looking for then brainliest pwease! <3

7 0

3 years ago

Spin o wia

prohojiy [21]

Where is the other one?

4 0

3 years ago

Plz help and plz show work

sammy [17]

Answer:

total miles = miles per day × number of days

M=m×d

8 0

3 years ago

Read 2 more answers

English

larisa86 [58]

Answer:

6 square feet

Step-by-step explanation:

Carpet has w= 8 ft and l = 12 ft

Reduced carpet has w' = 2 ft

Reduction factor is

8/2 = 4

Then

l' = l/4 = 12/4 = 3 ft

Area of small carpet

S = 2*3 = 6 ft²

6 0

3 years ago