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3 years ago

The base of a triangle is 12 meters and the height is 6 meters. What is the area of the triangle?

Mathematics

1 answer:

-BARSIC- [3]3 years ago

4 0

Answer:

Step-by-step explanation:

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-6.2 - 12.6x = 5.8 - 7.8x

Sav [38]

Answer:

x = -2.5

Step-by-step explanation:

Step 1: Write equation

-6.2 - 12.6x = 5.8 - 7.8x

Step 2: Solve for x

Add 12.6x on both sides: -6.2 = 5.8 + 4.8x

Subtract 5.8 on both sides: -12 = 4.8x

Divide both sides by 4.8: x = -2.5

Step 3: Check

Plug in x to verify if it's a solution.

-6.2 - 12.6(-2.5) = 5.8 - 7.8(-2.5)

-6.2 + 31.5 = 5.8 + 19.5

25.3 = 25.3

7 0

3 years ago

Mal works at a photo gallery. He charges $50 for a large photo and $40 for a large frame. Sales tax is 5%. How much total tax wi

natta225 [31]

Answer:

Are you on I X L?

Step-by-step explanation:

I apoligize but try googling 5% of 50

7 0

3 years ago

Read 2 more answers

The standard deviation for a set of data is 7.5. The mean is 235. What is the margin of error?

blondinia [14]

The margin of error is 0.97849

we are given

mean=235

so,

$n=235$

standard deviation =7.5

so,

$\sigma=7.5$

we know that

ME=2*standard error

and

$SE=\frac{\sigma }{\sqrt{n} }$

If confidence level is 95%, then we can multiply by 1.96

so, we can multiply by 2 to get ME

now, we can use marginal error formula

$ME=\frac{2\sigma }{\sqrt{n} }$

now, we can plug values

and we get

$ME=\frac{2\times 7.5 }{\sqrt{235} }$

$ME=0.97849$

7 0

3 years ago

Read 2 more answers

Can someone help please ! Answer correct for brainliest and also get a thanks ! :)

Alona [7]

The standard deviation of the set is 5.2

To find standard deviation, we take the square root of the variance.

3 0

4 years ago

The manufacturer of a smart watch claims that individuals who pay attention to how many steps they take per day will inadvertent

drek231 [11]

Answer:

Hello your question is incomplete attached below is the complete question

answer : 1596 ± 2.861 $\sqrt{\frac{1580^2 }{20 } +\frac{2350^2 }{20 } }$ ------ ( A )

Step-by-step explanation:

I will use excel function to resolve this question

Determine the 99% confidence of interval for the difference in mean number of steps by all people

∝ = 0.01

critical value ( t ) = 2.861 ( = TINV ( 0.01, 19 )

Given that :

S1 = 1580

S2 = 2350

n1 = 20

n2 = 20

Difference in mean = x1 - x2 = 1596

Margin of Error = t * $\sqrt{\frac{S^2_{1} }{n_{1} } +\frac{s^2_{2} }{n_{2} } }$

∴ 99% confidence of interval

= 1596 ± 2.861 $\sqrt{\frac{1580^2 }{20 } +\frac{2350^2 }{20 } }$ ------

8 0

3 years ago

The base of a triangle is 12 meters and the height is 6 meters. What is the area of the triangle?​

The base of a triangle is 12 meters and the height is 6 meters. What is the area of the triangle?