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3 years ago

Pls help me i just need number one but u can do 2

Mathematics

2 answers:

torisob [31]3 years ago

8 0

Answer:

1200

Step-by-step explanation:

v=15×8×10

the second one i cant see clearly the number but u just need to multiple tgose two numbers

timurjin [86]3 years ago

7 0

Answer:

1200

Step-by-step explanation:

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A person suspects a standard number cube is not so standard. Another person rolls this cube 100 times, and it lands on a six 42

Ksju [112]

Answer:

The chance of an average six-sided number cube landing one one number is 1/6, or approximately 16.67%. When rolling a number cube 100 times, the average number of times it lands on any specific number should be fairly close to 16.67.

A 6 being rolled 42 times and 33 times means that it is <em>very likely</em> not to be a standard number cube. Although we cannot know for certain, the chance of this happening is very low.

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3 years ago

Solve the equation by the Quadratic Formula. Round to the nearest tenth, if necessary. Write your solutions from least to greate

Marat540 [252]

I hope the choices for the numerators of the solutions are given.

I am showing the complete work to find the solutions of this equation , it will help you to find an answer of your question based on this solution.

The standard form of a quadratic equation is :

ax² + bx + c = 0

And the quadratic formula is:

x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

So, first step is to compare the given equation with the above equation to get the value of a, b and c.

So, a = 10, b = -19 and c = 6.

Next step is to plug in these values in the above formula. Therefore,

So,

Hope this helps you!

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2 years ago

A line goes through the point (6,-2) and has a slope of -3. What is the value of a if the point (a,7) lies on the line?

Vikki [24]

Answer:

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

$m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\$

From the question the slope is - 3

To find the value of a we have

$- 3 = \frac{7 - - 2}{a - 6} \\ - 3 = \frac{7 + 2}{a - 6} \\ - 3(a - 6) = 9 \\ - 3a + 18 = 9 \\ - 3a = 9 - 18 \\ - 3a = - 9$

Divide both sides by - 3

$\frac{ - 3a}{ - 3} = \frac{ - 9}{ - 3} \\$

We have the final answer as

Hope this helps you

3 0

3 years ago

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Kelvin is making a salad. He can pick between spinach, lettuce, or arugula as the base. He can make it with or without tomatoes,

Sunny_sXe [5.5K]

He can make 27 different salads. Since each individual option has three different salads, and there are 9 options.

Basically multiply the number of total toppings by the number of toppings in each row

Answer: 27

6 0

3 years ago

A vegetable store sold 3 tons of vegetables less on the first day than on the second, and on the third day it sold 5/9 of the am

Ilya [14]

Let
x---------> <span>quantity (ton) of vegetables sold the first day
</span>y---------> quantity (ton) of vegetables sold the second day
z---------> quantity (ton) of vegetables sold the third day

we know that
x=y-3---------> equation 1
z=(5/9)*(x+y)------> equation 2
x+y+z=98-----> equation 3
substitute equation 2 in equation 3
x+y+[(5/9)*(x+y)]=98----> multiply by 9----> 9x+9y+5x+5y=882
14x+14y=882-----> equation 4

to resolve the equations system formed by
x=y-3
14x+14y=882

using a graph tool
see the attached figure
the solution is
x=30
y=33
x+y+z=98----> z=98-(x+y)----> z=98-63---> 35

the answer is
vegetables sold the first day----> 30 ton
vegetables sold the second day----> 33 ton
vegetables sold the third day------> 35 ton

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3 years ago

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