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4 years ago

How do you write 3,500 in scientific notation

1 answer:

4 0

To write a number in scientific notation put the decimal after the first digit and drop the zeros and to find the exponent count the number of places from the decimal to the end of the number to express 3,500 use 3.5 x 10 ^ 3 or 3.5E03

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Help please what is the rate of change

arlik [135]

Answer:

Step-by-step explanation:

Sorry if it is wrong

8 0

3 years ago

Read 2 more answers

Find the angle between the given vectors to the nearest tenth of a degree.

saul85 [17]

Answer:

Step-by-step explanation:

Given

u = <6, -1>

u = 6i-j

and

v=<7,-4>

v=7i-4j

The formula for angle is:

Let x be the angle

$cos\ x = \frac{u.v}{||u||.||v||}$

where ||u|| is the length and u.v is the dot product or scalar product of both vectors

So,

$||u|| = \sqrt{(6)^2+(-1)^2}\\ = \sqrt{36+1}\\ = \sqrt{37}\\ ||v||=\sqrt{(7)^2+(-4)^2}\\ = \sqrt{49+16}\\ = \sqrt{65}\\$

$u.v = u_1u_2+v_1v_2\\= (6)(7)+(-1)(-4)\\=42+4\\=46$

$cos\ x=\frac{46}{\sqrt{37}\sqrt{65}} \\= \frac{46}{\sqrt{2405} }\\Can\ also\ be\ written\ as:\\= \frac{46}{\sqrt{2405} } * \frac{\sqrt{2405} }{\sqrt{2405}} \\=\frac{46\sqrt{2405} }{2405}$

The calculated angle will be in radians. To find the angle in degrees:

$x = \frac{180}{\pi} cos^{-1} (\frac{46\sqrt{2405} }{2405})\\x = 20.282\\x= 20.3\\$

Hence Option A is correct ..

6 0

4 years ago

What is the surface area of a sphere with radius 2

Gelneren [198K]

Answer:

Step-by-step explanation:

The surface area (A) of a sphere is calculated as

A = 4πr² ← r is the radius

here r = 2, hence

A = 4π × 2² = 4π × 4 = 16π units² → A

3 0

3 years ago

the manager at the movie theater needs to order 267 new seats.If the seats are sold only in group of 10, what is the least numbe

Alika [10]

The possible number of seats that the manager can order is 260 and 270.

270 is nearest to 267.

The least number of seats the manager should order is 270

<h3>What is an expression?</h3>

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Number of seats needed = 267

Seats are sold in groups of 10.

The least number of seats to order:

We need a multiple of 10 nearest to 267.

We have,

26 x 10 = 260

27 x 10 = 270

270 is nearest to 267.

Thus,

The least number of seats the manager should order is 270

Learn more about expressions here:

brainly.com/question/3118662

#SPJ1

4 0

1 year ago

What is the slope of the line that passes through<br> the points (2,5) and (-3,5)?

UNO [17]

Answer:

Slope = 0

Step-by-step explanation:

Slope = 0/-5 = 0

7 0

3 years ago