What is the standard form of 13.8

Answers

Answer 1

Answer:

Answer:

$13.8 = (1* 10) + (3* 1) + (8* \displaystyle(1)/(10))$

$13.8 = (1*10^1) + (3* 10^0) + (8* 10^(-1))$

Step-by-step explanation:

Standard form of a number is the the form where the number is expressed in the number digit form. There are many techniques to convert a same number into standard form.

There are many ways of writing a number in expanded form.

One of the way is:

$13.8 = (1* 10) + (3* 1) + (8* \displaystyle(1)/(10))$

Another way could be:

$13.8 = (1*10^1) + (3* 10^0) + (8* 10^(-1))$

Answer 2

Answer: 10+3+.8

hope this helps :-)

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Jane drives 63.84 miles in the morning and 45.9 miles in the afternoon.How many miles did she drive in all?

Answers

Answer:

109.74 miles.

Step-by-step explanation:

Answer:

109.74 miles.

Step-by-step explanation:

X=y+6
X+6y=20

Solving systems of equations using substitution

Answers

To get the answer we can subsittute first equation into second.
x+6y=20
y+6+6y=20
6+7y=20 /-6
7y=14 /:2
y=2
Now we can back substitute
x=y+6
x=2+6
x=8
Finally we get
x=8
y=2

You don’t have too answers both of them just one of them (unless u want)

Answers

Answer:

Step-by-step explanation:

to solve the volume you must multiply the sides together

you would multiply the length by the width by the height

so you would multiply 7 and 15 and 10

$7*10*15=1050$

Answer:

V= w*l*h

V=15*10*7=1050 cm^3

What is the answer to the equation
9x-4x(6-3x)

Answers

The answer is
-15x+12x^2

Answer:12x2−15x

Step-by-step explanation:

9x−4x(6−3x)

Distribute:

=9x+12x2+−24x

Combine Like Terms:

=9x+12x2+−24x

=(12x2)+(9x+−24x)

=12x2+−15x

Answer:

=12x2−15x

What is the total surface area of the square pyramid below? A square pyramid. The square base has side lengths of 10 centimeters. The triangular sides have a height of 14 centimeters. 100 cm2 200 cm2 280 cm2 380 cm2

Answers

Since the square base has side 10 cm and triangular side has height 14 cm, the total surface area of square pyramid is 380 cm²

To answer the question, we need to find the total surface area of the square pyramid

Total surface area of a square pyramid.

Since a square pyramid has a square base and four triangular sides, its surface area, A = area of square base + 4 × Area of triangular side.

Area of square base

Area of square with side, L is A = L²

Area of triangular base

Area of triangle with height, h and base, L which is the length of the square base is A' = 1/2Lh

So, total surface area of square pyramid is A" = L² + 4 × 1/2Lh

= L² + 2Lh

Given that the length of the square base is 10 cm and the height of the triangular side is 14 cm.

We have that

L = 10 cm and
h = 14 cm

So, substituting the values of the variables intot he equation, we have

A" = L² + 2Lh

A" = (10 cm)² + 2 × 10 cm × 14 cm

A" = 100 cm² + 280 cm²

A" = 380 cm²

So, the total surface area of square pyramid is 380 cm²

Learn more about total surface area of square pyramid here:

brainly.com/question/22744289

#SPJ2

Answer:

380 cm^2

Step-by-step explanation:

10*10=100(base square)

Each triangle= (14*10) /2=70

4 sides, so therefore: 70*4=280

280+100=380

Write 0.000038 in scientific notation.

Answers

0.000038 = 3.8e-5 = 3.8×10⁻⁵

0.000038 => 10^-5 * 38

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