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2 years ago

A student says to round 763,400 to the nearest ten thousand,they will round 770,000.Is the student right explain

2 answers:

8 0

No, 763,400 rounded to the nearest ten thousand is 760,000 because the digit in the thousands place value (3) is less than 5, so you underestimate

Murrr4er [49]2 years ago

4 0

The student if definitely incorrect because you are rounding from the 3rd digit ( the 3 in 763,400) It is bellow 5, only numbers above 5 will round up.

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The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm2/m

Mnenie [13.5K]

Answer:

The base is reducing at a rate of 3.4cm per min.

Step-by-step explanation:

Let The Height of the Triangle, h

Area of the triangle = A

Area of a Triangle, $A= \frac{1}{2}bh$

When $A=190 cm^2, h=10cm$

$190= \frac{1}{2}*b*10\\b=38cm$

$\frac{dA}{dt}=\frac{1}{2}h\frac{db}{dt}+ \frac{1}{2}b\frac{dh}{dt}\\\frac{dh}{dt}=1 cm/min, \frac{dA}{dt}=2cm^2/min,$

$2=\frac{1}{2}*10*\frac{db}{dt}+ \frac{1}{2}*38*1\\2=5\frac{db}{dt}+19\\2-19=5\frac{db}{dt}\\-17=5\frac{db}{dt}\\\frac{db}{dt}=-\frac{17}{5} =-3.4 cm/min$

The base is reducing at a rate of 3.4cm per min.

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2 years ago

I-Ready

Alex Ar [27]

Answer:

23/7 or 3 2/7

Step-by-step explanation:

it might be the mixed number

4 0

2 years ago

Find the area shaded <br> PLEASE HELPPPPP

Ulleksa [173]

3+6-7=2
2x5/2=5(1)
6x5/2=15(2)
The area shaded: (1)+(2) => 5+15=20
Answer: 20

5 0

2 years ago

What kind of function is being illustrated by f(x)=|2x³-3x|+5?

Dimas [21]

Answer:

Option D: Absolute value function

Step-by-step explanation:

The absolute value of a number is the distance of the number from 0 to the left or right on the number line.

We are given the function;

f(x) = |2x³ - 3x| + 5

This function contains an absolute value symbol which is |2x³ - 3x|.

This function is thus illustrated by an an absolute value function because an absolute value function will be one that contains algebraic expressions within absolute value symbols.

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2 years ago

The garden club earned $15 per hour by weeding neighborhood gardens for t hours. A generous donor has agreed to double their ear

bazaltina [42]

Answer: 35

Step-by-step explanation:15 + 15

7 0

3 years ago

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