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Sedaia [141]
3 years ago
15

The sum of 4x² + x - 8 and x² + 9 can be expressed as​

Mathematics
2 answers:
kotykmax [81]3 years ago
5 0

Answer:

5x^2+x+1

Step-by-step explanation:

marta [7]3 years ago
3 0

<h3>{4x}^{2}  + x - 8 +  {x}^{2}  + 9 \\  {4x}^{2}  +  {x}^{2}  + x - 8 + 9 \\  {5x}^{2}  + x + 1</h3>

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What is number 2 need help kinda confused
maxonik [38]
Since 60 minutes are in 1 hour, we can do (0.08 km/1 min)*(60min/1 hour) and cross out the minutes, getting (0.08*60 km)/(1 hour)= 4.8km/1 hour. Since 1.61 kilometers are in 1 mile, we can multiply the equation by 1mile/1.61 km (since they are equal) and cross out the km to get 4.8*1.61miles/1 hour= \
7.728mi/1 hour. Since it's closer to 8 than 5, 3, or 2, D is right
7 0
3 years ago
Write and expression for the difference of p and 4
katen-ka-za [31]

Answer:

p-4

Step-by-step explanation:

It is like asking to write an expression for the difference of 7 and 4: 7 - 4.

5 0
3 years ago
Read 2 more answers
Write the equation of the graph shown below in factored form.
Ira Lisetskai [31]

Answer:

  y = (x +2)(x -1)(x -3)

Step-by-step explanation:

For each x-intercept (r) the corresponding factor is (x -r). For x-intercepts -2, 1, 3, the factors are ... (x+2), (x-1), (x-3). Then the equation is ...

  y = (x +2)(x -1)(x -3)

7 0
3 years ago
Water level in a well was 20m below ground level. During rainy season, rainwater collected in different water tanks was drained
IgorC [24]

Answer:

17 m

Step-by-step explanation:

As shown in the figure,  A_0-B_0 is the ground level, A_1-B_1 is the old level of water which was at 20 m below ground level, A_2-B_2 is the new level of water which is 5m above of old level. The height of wall of the well, 1.20 m, and the the pelly at 80 cm =0.80 m, has been shown too.

The minimum length of the rope is equal to the distance between the pully and the new water level, indicated by the length L_0 in the figure.

So, L_0= 20-5+1.20+0.80= 17m

Hence, Raghu must use a rope having the minimum length 17 m to draw water from the well.

6 0
3 years ago
What is the circumference of quadrilateral ABED in cm?
Natasha2012 [34]

the perimeter of quadrilateral ABED is 36.

<h3 /><h3>What is circumference?</h3>

A circumference is the total distance around a plane shape. Another name for circumference is called perimeter

To calculate the circumference of the quadrilateral, we use the formula below.

Formula:

  • Peri. of ABED = /AB/+/BE/+/ED/+/DA/............. Equation 1

From the Diagram,

Given:

  • /AB/ = /DC/ = 8 cm,
  • /BE/ = 2×/DA/ = 2×6 = 12 cm
  • /ED/ = √(6²+8²) = √(36+64) = √100 = 10 cm
  • /DA/ = 6 cm

Substitute these values into equation 1

  • Peri. of quadrilateral ABED = 8+12+10+6
  • Peri. of quadrilateral ABED  = 36 cm

Hence, the perimeter of quadrilateral ABED is 36.

Learn more about circumference here: brainly.com/question/20489969

#SPJ1

4 0
2 years ago
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