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3 years ago

A number, x , rounded to 1 decimal place is 3.7 Write down the error interval for x

Mathematics

1 answer:

Anon25 [30]3 years ago

8 0

The error interval for x is 3.65,3.74.

Given that,

The number rounded to one decimal place is 3.7.

Now based on the above information, the number should be more than or equivalent to 5 at the n+1 place

Like 3.65, 3.66, 3.67, 3.68 till 3.74

Based on the above information, we can conclude that the error interval for x is 3.65,3.74.

Learn more: brainly.com/question/17429689

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Find the measure of /_ MFZ

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Given:

$MZ\cong PZ$

$m\angle MFZ=(x+9)^\circ$

$m\angle PFZ=(2x-1)^\circ$

To find:

The measure of angle MFZ.

Solution:

In triangles MFZ and PFZ,

$m\angle FMZ\cong \angle FPZ$ (Right angle)

$MZ\cong PZ$ (Given)

$FZ\cong FZ$ (Common side)

$\Delta MFZ\cong \Delta PFZ$ (HL congruent postulate)

$\angle MFZ\cong \angle PFZ$ (CPCTC)

$m\angle MFZ=m\angle PFZ$

$x+9=2x-1$

$9+1=2x-x$

$10=x$

The value of x is 10.

The measure of angle MFZ is:

$m\angle MFZ=(x+9)^\circ$

$m\angle MFZ=(10+9)^\circ$

$m\angle MFZ=19^\circ$

Therefore, the measure of angle MFZ is 19 degrees.

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