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3 years ago

60 is 25% of what number?

2 answers:

7 0

$\begin{array}{ccc}25\%&-&60\\\\100\%&-&x\end{array}\\\\multiply\ cross\\\\25x=60\cdot100\ \ \ /:25\\\\x=\frac{6000}{25}\\\\x=240$

fredd [130]3 years ago

6 0

$1\% =\frac{1}{100}\\ \\25 \ \% * x =60\\ \\ \not25^1*\frac{1}{\not100^4}x = 60 \\ \\\frac{1}{4}x =60 \ \ /*4\\ \\x=60*4\\ \\ x=240$

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Use the area of the rectangle to find the area of the triangle.

tatyana61 [14]

Answer:

Answer is A

Step-by-step explanation:

Area of triangle = $\frac{bxh}{2}$

= $\frac{10x5}{2}$

=25

Area of rectangle = bxh

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= 50

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2 years ago

Read 2 more answers

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antiseptic1488 [7]

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2 years ago

QUESTION 1

Kitty [74]

It's difficult to make out what the force and displacement vectors are supposed to be, so I'll generalize.

Let θ be the angle between the force vector F and the displacement vector r. The work W done by F in the direction of r is

W = F • r cos(θ)

The cosine of the angle between the vectors can be obtained from the dot product identity,

a • b = ||a|| ||b|| cos(θ) ==> cos(θ) = (a • b) / (||a|| ||b||)

so that

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For instance, if F = 3i + j + k and r = 7i - 7j - k (which is my closest guess to the given vectors' components), then the work done by F along r is

W = ((3i + j + k) • (7i - 7j - k))² / (√(3² + 1² + 1²) √(7² + (-7)² + (-1)²))

==> W ≈ 5.12 J

(assuming F and r are measured in Newtons (N) and meters (m), respectively).

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3 years ago

Graph this on a coordinate plane f(x)=2x^2-1

rodikova [14]

Answer:

Step-by-step explanation:

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2 years ago

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Vaselesa [24]

Answer:

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Step-by-step explanation:

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2 years ago