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3 years ago

Round 89972 to 3 significant figures

1 answer:

4 0

We round a number to three significant figures in the same way that we would round to three decimal places. We count from the first non-zero digit for three digits. We then round the last digit. We fill in any remaining places to the right of the decimal point with zeros.

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Write and equation and solve it

Vedmedyk [2.9K]

Answer: he have saved $500? ... the question. Does your answer make sense? ... Solve the following problems and show all your work. (Remember to use the 5 steps for solving two-step equation word problems!) | 1. ... Joe went to the hobby shop and bought 2 model sports cars at $8.95 each and some paints.

Step-by-step explanation:

6 0

3 years ago

Daniel bought 3 sweaters that each cost the same amount and a jacket that cost $40. The items he bought cost a total of $100 bef

MA_775_DIABLO [31]

3x+40=100

subtract 40 from both sides

3x= 60

divide by 3

x=20
each Sweater cost 20

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2 years ago

Find the interest generated if one invests $6000 for 9 years at 7% per annum with interest compounded monthly

marysya [2.9K]

Answer:

principle= 6000

time =9 years

rate = 7%

so,

compound interest = p((1+r/100)^t. -1)

= 6000((1+0.07)^9 -1)

=6000(1.84-1)

=6000*0.84

=5040

8 0

3 years ago

Multiply (x+4)(x-3).What is the product?

il63 [147K]

Since you have to distribute both numbers, you'll end up with x^2-3x+4x-12 then simplify and it is x^2+x-12

8 0

3 years ago

The path of an underwater drone is modeled by quadratic function d, where x is the horizontal distance, in miles, from the launc

soldier1979 [14.2K]

Based on the vertex form equation, the statements that are true are:

A.) the drone reaches its minimum 25 miles from the launch site

C.) at its minimum, the drone’s depth is -180 meters.

<h3>Rewriting the equation in vertex form</h3>

Given:

x = horizontal distance, in miles, from the launch site

d(x)= depth below the surface of the water, in meters.

Equation= 0.4x ²- 20x + 70

Hence

Rewritten the given equation ( 0.4x ²- 20x + 70) in vertex form will be:

Vertex form: d(x)=[2(x-25)²÷5] -180

Vertex= -180, 25

Minimum=-180 at x=25

Therefore the correct option is A, C.

Learn more about vertex form here:brainly.com/question/17987697

#SPJ1

6 0

2 years ago