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3 years ago

PLEASE HELP AND SHOW WORK ILL GIVE BRAINLIEST

Mathematics

1 answer:

Serjik [45]3 years ago

6 0

Answer:

11.3 units

Step-by-step explanation:

backward Pythagoras theorem

c²- b²=a²

12²-4²=a²

144 - 16 = a²

128=a²

√(128)=a\

11.3=a

11.3 units

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What are the real or imaginary solutions of the polynomial x^4-3x^2=-2x

bagirrra123 [75]

Answer:

x = 0 or 1 or -2

Step-by-step explanation:

$x^{4} -3x^{2} +2x=0$

x(x^3-3x+2)=0

x(x-1)^2 * (x+2)0

so x = 0 or 1 or -2

there is no imaginary solutions

4 0

3 years ago

Read 2 more answers

Write a mathematical sentence that expresses the information given below . Use t as your variable name.Necessary type <= to m

miskamm [114]

Answer:

t + 8° > 82°

Step-by-step explanation:

Given that :

Let t = temperature when Susanne checks at 11:00

If t rises by 8 more degrees, it will break the record high temperature for that day

Record high temperature for the day = 82 degree

Hence,

Temperature at 11:00 + 8° > record high temperature for the day

t + 8° > 82°

6 0

3 years ago

Devisibility rules for 3, 6, and 9

fenix001 [56]

Answer:

★ Divisibility rule for 3 -

If the sum of all the digits divisible by 3 then the number is divisible by 3.

Here, we take an example for better understanding -

Example 1 - 3525

Add up the digits - 3 + 5 + 2 + 5

→ 15

As, 15 is divisible by 3. So, 3525 is a factor of 3.

★ Divisibility rule for 6 -

A number is to be divisible by 6 , if the number is also divisible by 2 and 3.

Example 2 - 132

Add up the digits = 1 + 3 + 2 = 6

As, 6 is divisible by 2 and it's also divisible by 3. Then, 132 is a factor of 6.

★ Divisibility rule for 9 -

If the sum of all the digits is divisible by 9 then the number is divisible by 9. Just like we'd in 3.

Example 3 - 1052

Add up the digits - 10 + 5 + 2 = 17

As, 17 is not divisible by 9. So, 1052 is also not divisible by 9.

3 0

3 years ago

PLEASE HELP SUPER SUPER SIMPLE MATH QUESTION

lilavasa [31]

Answer:

-3 1/4

Step-by-step explanation:

12*3=36

3/12=1/4

5 0

2 years ago

What is the slope between the points (8, -2) and (-7, 10)

lara [203]

Slope formula:
(y2-y1)/(x2-x1)

Substitute in the points into the slope formula.

Slope= [10-(-2)] / [(-7)-8]
Slope= (10+2) / (-15)
Slope= 12/-15
Slope= -12/15
Simplify (3 goes into each)
Slope= -4/5

Hope this helps!! :)

8 0

3 years ago