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3 years ago

3x2+5y for x = 4 and y = 2. Need a right answer ASAP

Mathematics

1 answer:

oee [108]3 years ago

7 0

Answer:

It depends of what the equation is...

Step-by-step explanation:

If your equation is 3x2 (3x times 2) then the solution would be:

3(4)(2) + 5(2)= 34

If your equation is 3x + 2 + 5y, then the solution would be:

3(4) + 2 + 5(2) =24

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Write an inequality that represents the graph.

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Answer:

y=2x+1

Step-by-step explanation:

Y intercept is 1 and slope is 2/1

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What is the slope of a line passing through (-5,-2) and (4.1)?

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It is 18 degrees Celsius at 8 am, and 14 degrees Celsius by noon. The change in the temperature from 8am to noon is?

Oliga [24]

Answer:

4 degrees Celsius

Step-by-step explanation:

It is asking for the change in temperature, or the difference. In word problems like this it is asking for subtraction.

So you just need to subtract the temperature at noon from the temperature at 8 am.

18 - 14 = 4 degrees

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3 years ago

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What is the area of this trapezoid? Enter your answer in the box. Cm² Trapezoid with top base length of 14 centimeters, bottom b

Sonja [21]

Answer: 336 cm²

Step-by-step explanation:

A trapezoid looks like a rectangle with 2 traingles attached to the side, yeah? So imagine cutting off those 2 triangles. In the middle you have a rectangle with the dimensions of 14 cm by 16 cm. The area of that rectagle is 224 cm². By subtracting the top base length from the bottom base length, you get the length of the two triangles. So, it would be 28 cm - 14 cm, giving you 14 cm. There were 2 triangles, so cut that length in half and you get 7 cm for the base of one traingle. To find the area of 1 traingle, you would do 1/2 multiplied by 7 multiplied by 16. But you have 2 triangles. so the 1/2 step isn't needed because if you put the two triangles together, you get a new rectangle. Thus, when you add the area of this new rectangle, you get 112 cm². Add this to the original rectangle, and your final area is 336 cm².

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3 years ago

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What is the greatest prime you must consider to test whether 6971 is prime

tamaranim1 [39]

Answer:

Greatest prime is 83 to test 6971 is prime.

Step-by-step explanation:

To find : What is the greatest prime you must consider to test whether 6971 is prime.

Solution :

To determine whether it is prime or not we check it by taking the root and check the nearest prime factor of it

Step 1 - Take the square root of number 6971

$\sqrt{6971}=83.49$

Step 2- The last prime number before 83.49

Prime number is 83

Step 3 - Write all the prime number till 83 and if none of the digit divide 6971 then 6971 is prime.

So the only factors to check for 6971 are: 2, 3, 5, 7, 11, 13, 17, 19,, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83.

None of them divides the number

Therefore, 6971 is a prime number.

Greatest prime is 83 to test whether it is prime or not.

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