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3 years ago

2b³+5=2(3)³+5= Pls answer

Mathematics

2 answers:

photoshop1234 [79]3 years ago

7 0

Answer:

-5/12

Step-by-step explanation:

Schach [20]3 years ago

3 0

Answer:

Simplified: 2b³+64

Step-by-step explanation

This answer is true if the first equal sign is actually an addition sign.

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Find the vertex of the graph

liubo4ka [24]

Answer:

(-3, -11)

i needed to put more characters so here

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3 years ago

What is the perimeter of the triangle expressed as a polynomial?

Montano1993 [528]

If the triangle's sides are given by

2x-3

x-12

7x+1

Then all you have to do is to add them up, simplify your result and compare your result to each of:

a. -10x + 14
b. 9x- 14
c. 10x +14
d. 10x - 14

Adding together the following, we get:

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3 years ago

Steve and carol live 405 miles apart, they start at the same time and travel toward each other, Steve speed is 6mph greater than

babymother [125]

Answer:

Speed of Carol is 78 mph and that of Steve is 84 mph.

Step-by-step explanation:

Let the speed of Carol is x mph and that of Steve is (x + 6) mph.

If they move towards each other with that speed, then the resultant speed will be (x + x + 6) = (2x + 6) mph

With this resultant speed, they cover 405 miles in 2.5 hours.

So, $2x + 6 = \frac{405}{2.5} = 162$

⇒ 2x = 156

⇒ x = 78 mph

So, speed of Carol is 78 mph and that of Steve is (78 + 6) = 84 mph. (Answer)

6 0

3 years ago

Jan has a 12-ounce milkshake. Four ounces in the milkshake are vanilla, and the rest is chocalate. What are two equivalent fract

tino4ka555 [31]

In this item, we are given that out of 12 ounces of ingredients comprising the milkshake, there are 4 ounces vanilla. Expressing this into fraction will give us an answer of 4/12. This fraction can be one of the answers. Since we are asked for two fractions, we can simplify 4/12 such that we get an equivalent fraction that is equal to 2/6. Hence, the answers to this question are 4/12 and 2/6.

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4 years ago

Suppose your manager indicates that for a normally distributed data set you are analyzing, your company wants data points betwee

julia-pushkina [17]

Answer:

89.04% of the data points will fall in the given range of z = − 1.6 and z = 1.6

Step-by-step explanation:

We are given a normally distributed data.

We have to find the percentage of data that lies within the range z = − 1.6 and z= 1.6

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

$P(-1.6 \leq z \leq 1.6)\\= P(z \leq 1.6) - P(z \leq -1.6)\\\text{Calculating the value from standard normal table}\\= 0.9452 - 0.0548 = 0.8904= 89.04\%$

89.04% of the data points will fall in the given range of z = − 1.6 and z= 1.6

6 0

3 years ago