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4 years ago

HELP ASAPPPPPPPPPPPPPPP

Mathematics

1 answer:

Marina CMI [18]4 years ago

7 0

Answer:

x = 3 or -3

Step-by-step explanation:

8 - x = 5 or 8 + x = 5

-x = -3 or x = -3

x = 3 or x = -3

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Which of the following lists of fractions are in order from least to greatest? Select TWO that apply.

lora16 [44]

Answer:

i think its a 1/4 then 2/3 and 3/10

4 0

3 years ago

Read 2 more answers

Find the value of x such that the area of a triangle whose vertices have coordinates (6, 5), (8, 2) and (x, 11) is 15 square uni

Serjik [45]

Answer:

$x =12\ or\ -8$

Step-by-step explanation:

Given

$(x_1,y_1) = (6,5)$

$(x_2,y_2) = (8,2)$

$(x_3,y_3) = (x,11)$

$Area = 15$

Required

Find x

The area is calculated as thus:

$Area = \frac{1}{2}|x_1(y_2 - y_3) + x_2(y_3 - y_1) + x_3(y_1 - y_2)|$

Substitute values

$15 = \frac{1}{2}|6*(2 - 11) + 8*(11 - 5) + x(5 - 2)|$

$15 = \frac{1}{2}|6*(-9) + 8*(6) + x(3)|$

$15 = \frac{1}{2}|-54 + 48 + 3x|$

$15 = \frac{1}{2}|-6 + 3x|$

Multiply through by 2

$2 * 15 = \frac{1}{2}|-6 + 3x| * 2$

$30 = |-6 + 3x|$

Remove absolute sign

$30 = -6 + 3x\ or\ -30 = -6 + 3x$

Add 6 to both sides

$36 = 3x\ or\ -24 = 3x$

Divide by 3

$12 = x\ or\ -8 = x$

$x =12\ or\ -8$

So, the coordinates are (-8, 11) or (12,11)

3 0

3 years ago

Solve 29 < m^2+ 9/2 < 45

german

Answer:29m^2+

405/2

Step-by-step explanation:

4 0

3 years ago

Can some one help me with this math question?

vova2212 [387]

Answer:

I'm pretty sure it would be base x height divided by 2 so 20×6÷2

8 0

3 years ago

10. A garden 150 m long and 80 m wide has a road 2 m wide all around

Sergio [31]

Answer:

length l =150

breadth b = 80

lf 2 m wide of road is inside the garden

then

lt's area = l ×b

= 150 × 2

= 300m^2

6 0

3 years ago