2 years ago

Round 523 to the nearest ten

Mathematics

2 answers:

12345 [234]2 years ago

5 0

Answer:

523 to the nearest ten is 520

Nina [5.8K]2 years ago

5 0

Answer: First, 523 rounded to the nearest ten is:

520

Then We round the number up to the nearest ten if the last digit in the number is 5, 6, 7, 8, or 9.

We round the number down to the nearest ten if the last digit in the number is 1, 2, 3, or 4.

If the last digit is 0, then we do not have to do any rounding, because it is already to the ten.

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If f(x) = 5x + 40, what is f(x) when x = –5? –9 –8 7 15

Gnoma [55]

Hi,

$f(x)=5x+40\\\\f(-5)=5\times(-5)+40=-25+40=15\\f(-9)=5\times(-9)+40=-45+40=-5\\f(-8)=5\times(-8)+40=-40+40=0\\f(7)=5\times7+40=35+40=75\\f(15)=5\times15+40=75+40=115$

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A rectangle has a height of 3n^2 and a width of 4n^2-5n-1.

Galina-37 [17]

Answer:

$A = 12n^4-15n^3-3n^2$

Step-by-step explanation:

The dimensions of a rectangle are length and breadth/width

Here we are given height . Assuming it to be one of the side of the rectangle , we will do the further calculation

Hence one side is

side 1 = $3n^2$

And the other side is

Side 2 = $4n^2-5n-1$

The area of rectangle = side 1 x side 2

$A=3n^2 \times (4n^2-5n-1)$

$A=3n^2 \times 4n^2-3n^2 \times 5n-3n^2 \times 1$

$A=3 \times 4 \times n^2 \times n^2- 3 \times 5 \times n^2 \times n - 3n^2$

$A = 12n^4-15n^3-3n^2$

Hence area can be given as expression

$A = 12n^4-15n^3-3n^2$

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Find the sum 7+101/2+14+.........+84

rewona [7]

Answer: 155.5 Is your sum! (❤´艸｀❤)

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2 years ago

Convert 33c,62c,-25c,89c,212c into Fahrenheit

ratelena [41]

33 c = 91.4 Fahrenheit
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2 years ago

Tamika builds a wooden skateboard ramp. The ramp measures 63 centimeters, and the length of its horizontal base is 60 centimeter

Ulleksa [173]

Answer:

Answer is 19.2

Step-by-step explanation:

60x60= 3600 63x63= 3969

3969

- 3600 = 369 square root of the 369= is 19.2

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3 years ago

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