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poizon [28]
2 years ago
5

A photo that is 4 in wide and 6 in high is enlarged to a poster that is 3ft wide and 4 1/2 ft high what is the ratio of the widt

h of the photo to the width of the poster
Mathematics
2 answers:
ankoles [38]2 years ago
8 0
1:9 would be the ratio
Aleksandr-060686 [28]2 years ago
7 0

Answer:

Required ratio in the simplest form = 1 : 9

Step-by-step explanation:

Width of photo = 4 inches

Height of the photo = 6 inches

Width of the poster = 3 feet

Now, 1 feet = 12 inches

So, Width of the poster = 3 × 12 = 36 inches

Height of the poster = 4.5 feet

                                  = 54 inches

We need to find the ratio of the width of the photo to the width of the poster

⇒ Required Ratio = 4 : 36

⇒ Required ratio in the simplest form = 1 : 9

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Which polyhedron has more faces than a hexahedron, but fewer faces than an dodecahedron?
timurjin [86]
The best and most correct answer among the choices provided by your question is the fourth choice or letter D.

Octahedron (8) is a <span>polyhedron has more faces than a hexahedron, but fewer faces than an dodecahedron.</span>

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
5 0
2 years ago
Read 2 more answers
If an object is projected upward from ground level with an initial velocity of 128 ft per sec, then it's height in feet after t
antoniya [11.8K]

Answer: t= 4 seconds

Maximum height = 256 feet

Step-by-step explanation:

The height of the object projected upwards after t seconds is given by

s(t)=-16t^2+128t.

The expression is a quadratic equation. When this equation is plotted on a graph, height against time, it takes the shape of a parabola whose vertex represents the maximum height attained by the object.

To get the value of t at the maximum height,

t = -b/2a

From the equation,

a = -16

b = 128

t = -128/-2×-16

= -128 /- 32= 4

it will take 4 seconds to reach its maximum height

To find maximum height attained, put t= 4 in the equation

s(t)=-16t^2+128t

S = -16× 4^2 + 128×4

S = -256+512

S = 256 feet

3 0
3 years ago
Plz help!! math test. pick abc or d. not sure if C is right?? pls help !
aleksley [76]

Answer:

C is correct if I'm doing the math right. best of luck!!

6 0
3 years ago
-7x + 4y =10<br><br> -5x + 3y = 8
Margaret [11]

Answer:

x = 2, y = 6

(2, 6)

Step-by-step explanation:

The system of equations is solved when we find the "x" and "y" pair that is true for both equations.

We can use elimination, which is when we eliminate one of the variables. This can be done when both equations have a variable that has the same number.

Make both equations have "12y". Multiply each term by the same number.

-7x + 4y =10   }x3 =>   -21x + 12y = 30

-5x + 3y = 8  }x4 =>   -20x + 12y = 32

Subtract the equations from each other to get rid of 12y.

.     -20x + 12y = 32

<u>-     -21x + 12y = 30</u>

.          1x + 0y = 2    0y is nothing and 1x is x.

.                    x = 2    We have solved for x.

Now solve for y.

Use one of the equations:

-5x + 3y = 8    Substitute x for 2

-5(2) + 3y = 8     Simplify

-10 + 3y = 8     Start isolating x. Add 10 to both sides

3y = 18    Divide both sides by 3

y = 6    Solved for y.

The system of equations intersect at (2, 6).

4 0
2 years ago
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