2 years ago

Round 398.574986215 to the nearest ten-thousand

Mathematics

2 answers:

Alexeev081 [22]2 years ago

7 0

Answer: The answer would be 398.5750

Step-by-step explanation: The ten thousandths place is the fourth digit to the right of the decimal.

Mkey [24]2 years ago

5 0

Answer:

398.5750

Step-by-step explanation:

you can calculate your problem with a new google rounding calculator

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Solve the following system of equations by substitution. 2x - y = 6 x + y = 6

m_a_m_a [10]

y=-x+6

2x-(-x+6)=6

3x=12

x=4

4+y=6

y=2

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3 years ago

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Is it A. B. C. or D.

podryga [215]

Your answer would be b i'm pretty sure

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3 years ago

Explain how to use the combine values strategy to find 223-119

stich3 [128]

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104
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2 years ago

A standard dartboard has a diameter of 18 in. What is its area to the nearest square inch?

Reptile [31]

The meaning of the area is the measurement of a surface in this case a circle, which can be find by using the formula $A= \pi r^{2}$ , where r is equal to the radius of the circle.

In this exercise is given that the diameter of a standard cardboard is 18 inches or a radius of 9 inches and it is asked to find its area. Therefore, to find the area of the circle you should substitute the value of the radius into the previous mention formula.

$A= \pi r^{2}$
$A= \pi (9 in)^{2}$
$A= \pi (81 in^{2})$
$A=254.47 in^{2}$

The area of the standard dartboard is 254.47 square inches or 254 square inches.

8 0

2 years ago

Work out x when the area is root 4 2^2 and angle C is 45 and ab are (x+2)(2x-3)

aleksandrvk [35]

Answer:

x = 2.41

Step-by-step explanation:

Area formula:

A = 1/2bh

The height is:

h = (x + 2)sin 45° = √2(x + 2)/2

Substitute the area value an set an equation:

4√2 = (2x - 3)√2(x + 2)/2
(2x - 3)(x + 2) = 8
2x² + x - 6 = 8
2x² + x - 14 = 0
D = 1 + 4*2*14 = 113
x = (-1 + √113)/4 = 2.41 (rounded)

Note. the second root ignored as negative

7 0

2 years ago