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Sliva [168]
3 years ago
12

Dans 33 ans, Sarah aura le quadruple de son âge actuel.Quel âge a-t-elle aujourd'hui ?​

Mathematics
1 answer:
Oduvanchick [21]3 years ago
6 0

Answer:

Step-by-step explanation:

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Please help I'll give you brainliest and a lot of points
liraira [26]

Answer:

about 50

Step-by-step explanation:

they a move up 5 minutes eace half mile

dont come at me if it is wrong :)

6 0
3 years ago
The lengths of two sides of a triangle are 15 and 20 feet long what's the other side
MArishka [77]
<span>In a triangle the sum of two sides is always greater than the third side.
Let x represent </span><span>possible measures for the third side of a triangle
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20-15 < x < 20+15
5 < x < 35  </span>← answer
3 0
3 years ago
Kareem is putting 8 books in a row on his bookshelf. He will put one of the books, Pride and Prejudice, in the first spot. He wi
loris [4]

Answer:

6 different ways? because theres only 6 books left to put on the shelf

6 0
3 years ago
3 to the power of 2 + (15 ÷ 5 × 6) − 49
grin007 [14]

Answer:

i think its -31

Step-by-step explanation:

thats what i got

hope this helps :)

7 0
3 years ago
Read 2 more answers
Factor the quadratic equation below to reveal the solutions. X^2+4x-21=-9
a_sh-v [17]

Answer:

x = 3 and x = -7

Step-by-step explanation:

The given quadratic equation is x^2+4x-21=0. We need to find the solution of this equation.

If the equation is in the form of ax^2+bx+c=0, then its solutions are given by :

x=\dfrac{-b\pm \sqrt{b^2-4ac} }{2a}

Here, a = 1, b = 4 and c = -21

Plugging all the values in the value of x, such that :

x=\dfrac{-b+ \sqrt{b^2-4ac} }{2a},\dfrac{-b- \sqrt{b^2-4ac} }{2a}\\\\x=\dfrac{-4+ \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)},\dfrac{-4- \sqrt{(4)^2-4\times 1\times (-21)} }{2(1)}\\\\x=3, -7

So, the solutions of the quadratic equation are 3 and -7.      

6 0
3 years ago
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