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baherus [9]
2 years ago
9

The sum of a whole number and its square is 90. Find the number is the number 9

Mathematics
1 answer:
hichkok12 [17]2 years ago
4 0

Answer:

Yes, the number is 9.

Step-by-step explanation:

81 is 9², and 90 is their sum.

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What is the scale factor of triangle ABC to triangle DEF?
8_murik_8 [283]

Answer:

Second option, scale factor is 2.5

Step-by-step explanation:

We see that ∠B ≅ ∠E and ∠C ≅ ∠F, therefore, ΔABC ~ ΔDEF by the AA Similarity for Triangles Theorem which states that if two pairs of corresponding angles are congruent in two triangles, then those two triangles are similar. To find the scale factor, all we have to do is DF / AC = 5/2 or 2.5.

5 0
3 years ago
Is 6.34 repeating a rational or irrational number?
Alchen [17]

Step-by-step explanation:

i think that is a irational number

5 0
3 years ago
If a spring stretches 6 meters when a 7-kilogram weight is attached to it, how much will it stretch when a 42-kilogram weight is
Zinaida [17]

Answer:

Step-by-step explanation:

 This is a simple proportion problems.

7 kilogram weight attache to a spring stretches  = 6 meters

 1 kilogram would stretch                                       =  6/7 m

Therefore 42 kilograms would  stretch                  = (6/7 x 42)meters

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8 0
3 years ago
What is the slope of the line
SOVA2 [1]

Answer:

-2/3 Give brainliest

Step-by-step explanation:

7 0
3 years ago
What the answer to this
neonofarm [45]

Answer:

D

Step-by-step explanation:

(I solved in the picture, firstly look at there)

after completing the square and factoring :

{x}^{2}  + 4x + 4 = 8 + 4

{x}^{2}  + 4x + 4 = 12

{(x  - 2)}^{2} = 12

Hope this helps ^-^

6 0
3 years ago
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