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3 years ago

A number is divisible by 10 if and only if it is divisible by 2 true or false? plz helppp

Mathematics

1 answer:

larisa86 [58]3 years ago

8 0

Answer:

false

Step-by-step explanation:

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One angle of a triangle measures 136º. The other two angles are congruent.

WINSTONCH [101]

Answer:

22°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180° , then

x + x + 136° = 180°

2x + 136° = 180° ( subtract 136° from both sides )

2x = 44° ( divide both sides by 2 )

x = 22°

3 0

3 years ago

The measure of an angle is seven times the measure of its supplementary angle. What is the measure of each angle?

MrMuchimi

Step-by-step explanation:

7x= 180-x

7x+x= 180

8x= 180

x= 22.5

the angle is 22.5

its supplementary angle is 157.5

5 0

3 years ago

I need to know the answer please help me

spin [16.1K]

First is 42 and the second is 4.5

6 0

2 years ago

If the total manufacturing cost is $40000 and the total amount of units manufactured is 500 units, then the price per unit is

mezya [45]

Answer:

Unitary cost= $80

Step-by-step explanation:

Giving the following information:

Total manufacturing cost= $40,000

Number of units= 500

<u>To calculate the unitary cost, we need to use the following formula:</u>

Unitary cost= Total manufacturing cost / number of units

Unitary cost= 40,000 / 500

Unitary cost= $80

6 0

3 years ago

In a random sample of 45 newborn babies, what is the probability that 40% or fewer of the sample are boys. (Use 3 decimal places

erastova [34]

Answer:

$z= \frac{p- \mu_p}{\sigma_p}$

And the z score for 0.4 is

$z = \frac{0.4-0.4}{\sigma_p} = 0$

And then the probability desired would be:

$P(p$

Step-by-step explanation:

The normal approximation for this case is satisfied since the value for p is near to 0.5 and the sample size is large enough, and we have:

$np = 45*0.4= 18 >10$

$n(1-p) = 45*0.6= 27 >10$

For this case we can assume that the population proportion have the following distribution

$p \sim N(p,\sqrt{\frac{p(1-p)}{n}})$

Where:

$\mu_{p}= \hat p = 0.4$

$\sigma_p = \sqrt{\frac{p(1-p)}(n} =\sqrt{\frac{0.4(1-0.4)}(45}= 0.0703$

And we want to find this probability:

$P(p$

And we can use the z score formula given by:

$z= \frac{p- \mu_p}{\sigma_p}$

And the z score for 0.4 is

$z = \frac{0.4-0.4}{\sigma_p} = 0$

And then the probability desired would be:

$P(p$

7 0

3 years ago

Read 2 more answers