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2 years ago

Help me please because of the points

Mathematics

1 answer:

xxTIMURxx [149]2 years ago

8 0

Answer:

Step-by-step explanation:

Because the dolphin increases his elevation, the amount he increases is added to the original elevation to get the second elevation.

Therefore:

-16 3/4 + 5x = -5 1/4

This option is not in the options but if we rearrange the left side from

- 16 3/4 + 5x

to:

5x - 16 3/4

We get the last option C.

Hope this helped!

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Is 5/8 bigger than 2/3

alex41 [277]

Answer:

Step-by-step explanation:

2/3 is bigger

8 0

2 years ago

Find the area of triangle ABC with vertices A(2,1), B (12,2), C (12,8). Hence, or otherwise find the perpendicular distance from

Lapatulllka [165]

<h2>The area of a triangle is =54 square units</h2><h2>The perpendicular distance from B to AC is = $\frac{108}{\sqrt{149} } units$ </h2>

Step-by-step explanation:

Given a triangle ABC with vertices A(2,1),B(12,2) and C(12,8)

$x_1=2,y_1=1,x_2=12,y_2=2,x_3=12 and y_3=8$

The area of a triangle is= $\frac{1}{2} [x_1(y_2-y_3) +x_2 (y_3- y_1)+x_3(y_1-y_2)]$

= $|\frac{1}{2} [2(2-8+12(8-1)+12(1-2)]|$

= $|-54|$ = 54 square units

The length of AC = $\sqrt{(x_1-x_3)^{2} +(y_1-y_3)^2}$

= $\sqrt{(2-12)^{2} +(1-8)^2}$

= $\sqrt{149}$ units

Let the perpendicular distance from B to AC be = x

According To Problem

$\frac{1}{2} \times x \times \sqrt{149} = 54$

⇔ $x =\frac{108}{\sqrt{149} }$ units

Therefore the perpendicular distance from B to AC is = $\frac{108}{\sqrt{149} } units$

5 0

2 years ago

0.6cm squared to mm squared

san4es73 [151]

1 cm = 10 mm

1 cm^2 = 100 mm^2

0.6 cm^2 = 0.6 * 100 mm^2 = 60 mm^2

3 0

2 years ago

Solve for g.<br> 9 - g = 2g

svp [43]

Answer:

g=3

Step-by-step explanation:

9 - g = 2g

+g +g

9=3g

divide both sides by 3

g=9

8 0

2 years ago

What is 98765432-1? Really appreciate you helping me get rid of my points!

larisa [96]

Answer:

98765431 is the answer

Step-by-step explanation:

This took me a very long time to complete so your welcome ;)

5 0

2 years ago