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goldenfox [79]
3 years ago
15

Work out the area of the triangle :) Show working out plz:)

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
7 0
The formula for triangle area is b•h/ 1/2. so you would do 12•5=60. then divide that by 2 to get 30
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Find the equation of the line through (-7, -2) that is perpendicular to the line y = x/3+6.
azamat

Answer:

y = −3x − 23

Step-by-step explanation:

The equation of the line in the slope-intercept form is y= x/3 + 6.

The slope of the perpendicular line is negative inverse: m = −3.

So, the equation of the perpendicular line is y = −3x + a.

To find a, we use the fact that the line should pass through the given point:

−2 = (−3) ⋅ (−7) + a.

Thus, a = −23.

Therefore, the equation of the line is y = −3x − 23.

Answer: y =−3x − 23

6 0
3 years ago
What is the value of a in the equation 3a+b = 54, when b = 9?<br> 15<br> 18<br> 21<br> 27
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Step-by-step explanation:

3a+9=54

-9        -9

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:3     :3

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4 0
3 years ago
Read 2 more answers
Cu cat este mai mare suma numerelor 24 407 si 14 509 fata de diferenta lor?
zubka84 [21]

<span>The higher the sum of the numbers 24 407 and 14 509 towards their difference?</span>
4 0
3 years ago
pls help. Natalia paid $38.95 for three medium-sized pizzas and a salad. If Natalia paid $11.98 for the salad, how much did each
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3 0
3 years ago
The Moores family paid $6 more for skate rentals than the Cotters did. Together the two families paid $30 for skate rentals. How
Mademuasel [1]
<span>Moores Family Paid = 6 dollars mores for skate rental than the cotters did.
30 dollars = the total amount they paid for skate rentals.
Let Family Moore have the variable X
Let the Family Cotters have the variable Y
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=> Y – 30 – 6 / 2
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Now, let’s solve for X
=> X = y + 6
=> x = 12 + 6
=> X = 18

</span>



8 0
3 years ago
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