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3 years ago

1. What is the sum of its angle measures? 90° 180° 360°

Mathematics

2 answers:

lesya692 [45]3 years ago

8 0

Answer:

sum of all angle measures 360°

Step-by-step explanation:

the given figure is a rectangle and it's all angles measures 90°, so the sum of all the angles : -

=》90° + 90° + 90° + 90°

=》360°

( and, sum of all interior angles of any quadrilateral is 360° )

Zigmanuir [339]3 years ago

5 0

Answer:

360 degrees

Step-by-step explanation:

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3 years ago

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3 years ago

Solve for the indicated variable: ⅖(z + 1) = y for z.

sweet [91]

Answer:

z = 5/2y -1

Step-by-step explanation:

We observe that z has ...

1 added
the sum multiplied by 2/5

To solve for z, we undo these operations in reverse order.

$\dfrac{2}{5}(z+1)=y\qquad\text{given}\\\\z+1=\dfrac{5}{2}y\qquad\text{multiply by 5/2}\\\\\boxed{z=\dfrac{5}{2}y-1}\qquad\text{subtract 1}$

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3 years ago

Read 2 more answers

Find f if f′(x)=2x−3/x^4, x>0 and f(1)=2.

slavikrds [6]

$f'(x)=2x-\dfrac3{x^4}$
$\displaystyle\int f'(x)\,\mathrm dx=\int\left(2x-\frac3{x^4}\right)\,\mathrm dx$
$f(x)=x^2+\dfrac1{x^3}+C$

Given that $f(1)=2$ , we get

$2=1^2+\dfrac1{1^3}+C$
$2=2+C$
$\implies C=2$

so that

$f(x)=x^2+\dfrac1{x^3}$

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3 years ago