Help with question 9 please

Answers

Answer 1

Answer: Volume of a prism = Bh

B = area of the base
h = height

B = 1/2 (base1 + base2) x height
B = 1/2 (9+6) x 8
B = 1/2 (15) x 8
B = 4 x 15
B = 60

Volume = 720
720 = B x h
720 = 60 x h
h = 12

So the height or length is 12mm.

Surface Area = 2B + 2P

Where
B is the area of the base
P is the perimeter of the base

We already know that B= 60

P = 9 + 10 + 6 + 8
P = 33

So

SA = 2*60 + 2*33
SA = 120 + 66
SA = 186

The surface area is equal to 186mm^2.

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Someone please help me with this

Answers

I hope this helps you

The minute hand of a clock is 9.5cm long. How far will the hand travel in one day, to the nearest meter

Answers

136.8 meter, or 137 meters

Work:

60 minutes x 24 hours =
1,440 minutes in a day

1,440 minutes x 9.5 cm =
13,680 centimeters

13,680 cm = 136.8 meters // 137

Which equation represents a circle with a center at (–4, 9) and a diameter of 10 units?(x – 9)2 + (y + 4)2 = 25
(x + 4)2 + (y – 9)2 = 25
(x – 9)2 + (y + 4)2 = 100
(x + 4)2 + (y – 9)2 = 100

Answers

The equation for this circle is given as

$(x+4)^2 + (y-9)^2 = 25$

Data

h = -4
k = 9
r = diameter/2 = 10/2 = 5

Equation of Circle

The equation of circle is given by

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

Let's substitute our values and get our equation

$(x--4)^2 + (y-9)^2 = 5^2\n(x+4)^2 + (y-9)^2 = 25$

we substituted the values of h and k and made sure it's in the standard form of equation of a circle.

The equation for this circle is given as

$(x+4)^2 + (y-9)^2 = 25$

This looks exactly like

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

Learn more on equation of a circle here;

brainly.com/question/15214797

Answer:

(x + 4)^2 + (y – 9)^2 = 25

Step-by-step explanation:

The standard form for a circle is

$(x - h)^(2) + (y - k)^(2) = r^(2)$ where (h, k) is the center and r is the radius

In your case, h = -4 and k = 9 and r = 5

So, (x + 4)^2 + (y – 9)^2 = 25

5/8 - 3/4 (8 - 1/3) + 1

Answers

Answer:

use a algebra caculator

Step-by-step explanation:

Answer:

-4.125

Step-by-step explanation:

5/8 - 3/4 (8-1/2 ) + 1 = - 33/8 = -4 1/8

How many acute angles does an obtuse triangle have

Answers

Answer:

i think 2

Step-by-step explanation:

ya i think 2

4. Find the range of f(x) = -x + 4 for the domain {-3, -2, -1, 1}.O {7, 6, 5, 3}
O {-7, -6, -5, -4}
O {7, 6, 5,4}
O {-7, -6, -5, 3}

Answers

It’s this first one- 7,6,5,3
You can get this by plugging each of the x values into the expression -x+4
Hope that helps