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3 years ago

Ray BD is the angle bisector of Given that D Om m-ABD=42 m-ABD=21 Om ABD=96"

Mathematics

1 answer:

djverab [1.8K]3 years ago

6 0

Om ABD = 96” is the answer

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Hank's pickup can travel 68 miles on 4 gallons of gas. How many gallons will Hank's pickup need to travel 51 miles?

andrew-mc [135]

Answer:

Step-by-step explanation:

68/4 to get how many miles per gallon

51/17 to see how many gallons of gas

3 gallons of gas

5 0

3 years ago

Help with quadratic graphs asap!

zlopas [31]

x= -0.25 and 1.25

x = -0.5 and 1.5

x = 0 and 1

x = -0.375 and 1.625

Step-by-step explanation:

Given equation of the curve is

$y = 4x^2 -4x-1$

(i)

First equation $4x^2 -4x-1 =0$

Here y = 0

In x-axis the value of y = 0

The graph cuts the x-axis at(-0.25,0) and (1.25,0)

So, x= -0.25 and 1.25

(ii)

$4x^2 -4x-1 =2$

here y = 2

The line y= 2 cuts the curve at (-0.5,2) and (1.5,2)

So, x = -0.5 and 1.5

Given equation of the curve is

$y= 3x^2-3x -1$

(i)

$3x^2-3x +2 =2$

$\Leftrightarrow 3x^2-3x -1 = -1$

Here y = -1

The line y = -1 cuts the curve at (0,-1) and (1,-1)

So x = 0 and 1

(ii)

$3x^2-3x -1 =x+1$

Here y = x+1

The line y -x =1 cuts the curve at (-0.375,0.5) and (1.625,2).

So x = -0.375 and 1.625

3 0

3 years ago

How can I factor 16w^2-56w+49

Marrrta [24]

(4w-7)(4w-7) .
You need to find a multiplication that gives you 49 but at the same time when you add them it need to give you -56

4 0

4 years ago

A rectangular tank is 100 cm long, 30 cm wide and 12 cm deep.The volume of liquid it will hold is

Marina86 [1]

Answer:

36000cm

V= Length×Width×height

3 0

3 years ago

Read 2 more answers

Find the focus. y= -1/12 (x)² - 6

jolli1 [7]

Answer:

$\Large \boxed{\sf\ \ (0,-9) \ \ }$

Step-by-step explanation:

Hello,

We know that when the parabola equation is

$y=a(x-h)^2+k$

the vertex is (h,k) and the focus is

$(h,k+\dfrac{1}{4a})$

Here, the equation is

$y=-\dfrac{1}{12}x^2-6$

$a=-\dfrac{1}{12}\\\\h = 0\\\\k =-6$

So,

$k+\dfrac{1}{4a}=-6-\dfrac{12}{4}=-6-3=-9$

Then, the focus is

$\large \boxed{\sf\ \ (0,-9) \ \ }$

I attached the graph, included the focus so that you can see it :-)

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

4 0

3 years ago