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4 years ago

21. Mahina measured the diameter of a circle to be 6.5 inches. What is the circumference of that circle to the

Mathematics

1 answer:

nlexa [21]4 years ago

6 0

Answer:

20 inch

Step-by-step explanation:

Diameter, D = 6.5in

Circumference

= π x D

= 3.142 x 6.5

= 20.42

= 20 in (rounded to nearest in)

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The area of a parallelogram is 12 ftsquared and the height is 4 ft. Find the length of the corresponding base.

Alexxx [7]

The length is 3 ft 4 times 3 =12

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3 years ago

There are (43)2⋅ 40 strawberries on a farm. What is the total number of strawberries on the farm?

Kazeer [188]

Answer:

3,440 strawberries

Step-by-step explanation:

Because of PEMDAS you want to start with the parentheses, and want to treat them like the distributive property.

So,

43 x 2 = 86

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I hope that helps!!

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3 years ago

What is 10 to the power of 3 multiply by 17.55?

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3 years ago

Read 2 more answers

Represent the following expressions with disks, regrouping as necessary. To the right record the partial products vertically 4*2

zloy xaker [14]

2 27 The 2 is showing that you carry that over when multiplying the 4 and 2
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4 years ago

Read 2 more answers

!!PLEASE HELP ME ANSWER!!

Igoryamba

Answer:

$x = \sqrt{w(w+z)}$

Step-by-step explanation:

By the Pythagorean theorem, triangle BCD has

$y^2 = x^2 - w^2$

and triangle ABD has

$v^2 = y^2 + z^2$ .

Substituting the first equation into the second equation for $y^2$ gives the equation

$v^2 = (x^2 - w^2) + z^2$

Now triangle ABC has

$(w+z)^2 = x^2 + v^2$

Expanding out the left side, $w^2 + 2wz + z^2 = x^2 + v^2$ .

Now substitute the equation from before, $v^2 = x^2 - w^2 + z^2$ , into the new equation.

$w^2 + 2wz + z^2 = x^2 + (x^2 - w^2 + z^2)$

$w^2 + 2wz + z^2 =2x^2 - w^2 + z^2$

We work to isolate $x^2$ by adding $w^2$ to both sides of equation and subtracting $z^2$ from both sides.

$2w^2 + 2wz = 2x^2$

Divide both sides by 2 and you get $w^2 + wz = x^2$

Assume that x is positive and square root both sides to get the final result of

$x = \sqrt{w^2 + wz} = \sqrt{w(w+z)}$

4 0

3 years ago