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3 years ago

Explain how to use hundredths grids to subtract 1.65 - 0.98

1 answer:

6 0

How to use that, you just move the dots two times to the right (1.65 to 165 and 0.98 to 98) so that they are calculated in the hundredths grids. then you subtract the numbers (165 - 98 = 67). and there is your answer

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Find the measure of ∠ 2.<br><br> degrees

miv72 [106K]

$If\ it's\ a\ rhombus,\ then\ |\angle1|=26^o\\\\|\angle1|+|\angle2|+26^o=180^o\ \ /it's\ a\ triangle/\\\\26^o+|\angle2|+26^o=180^o\\52^o+|\angle2|=180^o\ \ \ |subtract\ 52^o\ from\ both\ sides\\\boxed{|\angle2|=128^o}$

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3 years ago

T-8 in a algebric expression

jeka57 [31]

Answer:

the answer would be 7x-8. i hope this helped. :).

Step-by-step explanation:

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3 years ago

If m angle B=m angle D=41, find m angle C so that quadrilateral ABCD is a parallelogram

Charra [1.4K]

ANSWER

139°

EXPLANATION

One of the interior angle properties of a parallelogram is that adjacent interior angles are supplementary.

This means that, the adjacent interior angles add up to 180°.

$m \angle \: B = m \angle \: D = 41$

Then

$m \angle \: C + m \angle \: D = 180 \degree$

$m \angle \: B + m \angle \:C= 180 \degree$

$\implies41 \degree + m \angle \:C= 180 \degree$

$\implies m\angle \:C= 180 \degree - 41 \degree = 139 \degree$

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3 years ago

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Past experience has indicated that the breaking strength of yarn used in manufacturing drapery material is normally distributed.

OLEGan [10]

Answer: the value of population standard deviation is 3.87

Step-by-step explanation:

From the information given,

Number of sample, n = 8

For a confidence level of 95%, the corresponding z value is 1.96. This is determined from the normal distribution table.

We will apply the formula

Confidence interval

= mean ± z ×standard deviation/√n

Since confidence interval = 2.694,

It becomes

2.694 = 1.96 × standard deviation/√8

Dividing both sides of the equation by 1.96, it becomes

1.37 = standard deviation/√8

Standard deviation = 1.37 × √8

Standard deviation = 3.87

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3 years ago

A coin is flipped 18 times and it comes up tails 12 times. What is the experimental probability of the coin's comping up tails

antoniya [11.8K]

To find experimental probability you divide the number of time the event occurs by the number of trials. in this case the experimental probability is 2/3

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3 years ago

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