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antoniya [11.8K]
3 years ago
10

Plz help me I need help I’m being timed

Mathematics
1 answer:
lakkis [162]3 years ago
4 0

Answer:

for the first one it is 112. For the second it is 150.

Step-by-step explanation:

Hope I helped :)

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Factorise 5x^2-18x+16=0
Lunna [17]

Answer:

(5x-8)(x-2)

Step-by-step explanation:

or either use quadratic formula

5 0
2 years ago
A box is to be wrapped in a shiny red decorative paper.The box is 9 inches long,5 inches wide,and 4 inches high.How much wrappin
Gnoma [55]

Answer:

Draw a figure!

There are 6 surfaces to add.

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You should be able now to compute the surface areas.

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3 years ago
If m= 15 and n = 3, what is the value of the following expression?
GaryK [48]

Answer:

D

Step-by-step explanation:

5 0
3 years ago
The equation X squared plus Y squared minus 2X plus 7Y +1 equals zero can be written as which of the following equations
ad-work [718]

For this case we must write in algebraic symbology the expression described above:

We have an equation, then:

  • x squared plus y squared: x ^ 2 + y ^ 2
  • minus 2x plus 7y plus 1: -2x + 7y + 1
  • equals zero: = 0

We construct the equation:

x ^ 2 + y ^ 2-2x + 7y + 1 = 0

Answer:

x ^ 2 + y ^ 2-2x + 7y + 1 = 0

6 0
3 years ago
What is the circumference of the circle if r = 3.5 feet? Use 22 7 for π. A) 5.5 feet B) 11 feet C) 22 feet D) 38.5 feet
Liono4ka [1.6K]
Well, to find the circumference of a circle, we can use the formula
C=2\pir.
So just plug in 3.5 into the formula.
C=2\pi3.5.
Multiply and we get C=21.99. which is about 22 
So our answer would be C. 22 feet.
Hope I helped!
8 0
3 years ago
Read 2 more answers
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