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leonid [27]
3 years ago
8

The length of a photograph is 1 less than twice the width. The area is 45 cm squared. Find the dimensions of the photograph.

Mathematics
2 answers:
kkurt [141]3 years ago
7 0

the lenght is 9 and the width is 5 so 9 by 5

Hitman42 [59]3 years ago
4 0
Idk need help as well
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What is the area of the polygon shown below? (in the image). A. 322 mm^2 B. 364 mm^2 C. 520 mm^2 D. 584 mm^2 Show all work pleas
GalinKa [24]

Answer:

A. 322 mm^2

Step-by-step explanation:

First split the shape into two (a rectangle and a triangle).

Then calculate the area of those shapes.

Rectangle: 20 x 14 =  280 mm^2

Triangle: 6 x 14 / 2 = 42 mm^2

Add them together.

280 + 42 = 322 mm^2

3 0
3 years ago
Read 2 more answers
Help me pleaseee!!!!!!!!!!!!!!!!!!!!
Stolb23 [73]
You have to square the binomial.
(x^3 + 4y)  (x^3 + 4y)  
Using FOIL:
x^9 + 4(x^3)y + 4(x^3)y + 16y^2
x^9 + 8(x^3)y + 16y^2

You could also use the formula: (a+b)^2 = (a^2 + 2ab + b^2).
6 0
3 years ago
Which is the vertex of x^2 + 10x = - 17?
Dafna11 [192]

Answer:

(-5, -8)

Step-by-step explanation:

Parabolas always have a lowest point (or a highest point, if the parabola is upside-down). This point, where the parabola changes direction, is called the "vertex". If the quadratic is written in the form y = a(x – h)2 + k, then the vertex is the point (h, k).

x^2 + 10x = - 17

x^2+10x+17=0

x^2+2*5x+25 - 8=0

(x+5)^2-8=0

h=-5, k= -8

vertex is (-5, -8)

3 0
2 years ago
I don't have much points, but you get 25 points, and brainiest. need help asap
Alex787 [66]
The answer would be 33 units^2!

I hope this helped! Mark me Brainliest! :) -Raven❤️
3 0
2 years ago
30 points WILL GIVE BRAINLIEST help please
Gennadij [26K]

Answer:

0

Step-by-step explanation:

It is 0 due to indirect variation

5 0
3 years ago
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