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3 years ago

5+1.5(2d-1)=0.5 How do you solve this?

Mathematics

2 answers:

olasank [31]3 years ago

7 0

Answer:

Step-by-step explanation

5+1.5(2d)1.5(-1)=0.5

5+3d-0.5=0.5

5+3d=1

3d=-4

D=1.33

Tju [1.3M]3 years ago

3 0

Answer:

5 + 3d - 1.5 = 0.5

3d + 3.5 = 0.5

3d = -3

d = -1

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Which is a true statement about an exterior angle of a triangle

Harlamova29_29 [7]

Answer:

Step-by-step explanation:

The exterior angles are out of the triangle at all times and it adds up to make 180 with anyone of the inside angle of the triangle.

The pair also rests on the same flat/straight line and that makes a pair.

Therefore we can say that it is formed by a linear pair/group with one of the interior/inside angles of the triangle.

So, the correct answer would be D.

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3 years ago

you earn $70 per week mowing lawns one week you work 10 hours during the week and spend $20 on gasoline for your mower how much

Basile [38]

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$50
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3 years ago

800 3. Andrew is buying a farm and needs to determine the height of a tree on the farm. Andrew, who is 5.8 feet tall, notices th

Zanzabum

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Answer:

49.3 feet

Step-by-step explanation:

Shadow lengths and object heights are considered to be proportional, so we have ...

tree height/(tree shadow) = Andrew's height/(Andrew's shadow)

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The tree is 49.3 feet tall.

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3 years ago

In order to set rates, an insurance company is trying to estimate the number of sick days that full-time workers at an auto repa

kotegsom [21]

Answer: 31

Step-by-step explanation:

Formula to find the sample size is given by :_

$n=(\dfrac{z^*\cdot \sigma}{E})^2$

, where z*= critical value corresponds to confidence level.

$\sigma$ = population standard deviation.

E= Margin of error.

As per given , we have

$\sigma=2.8$

E=1

We know that critical value corresponding to 95% confidence level = z*=1.96

Then, the required sample size would be :

$n=(\dfrac{(1.96)\cdot (2.8)}{1})^2$

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3 years ago

Solve for x sim b (10, 0.75) for x = 5

Aleksandr-060686 [28]

The value of $x \sim B (10, 0.75)$ for x = 5 is 0.06

<h3>How to solve the probability?</h3>

The expression is given as:

$x \sim B (10, 0.75)$

This means that:

n = 10

p = 0.75

The probability is then calculated as

$P(x)= ^nC_x * p^x *(1 - p)^{n-x$

This gives

$P(5)= ^{10}C_5 * 0.75^5 *(1 - 0.75)^5$

Evaluate the combination expression

$P(5)= 252 * 0.75^5 *0.25^5$

Evaluate

P(5)= 0.06

Hence, the value of $x \sim B (10, 0.75)$ for x = 5 is 0.06