3 years ago

What number a is 70% of 70? 70 100

Mathematics

2 answers:

astraxan [27]3 years ago

8 0

Answer:

Step-by-step explanation:

49 is the answer!!!!

crimeas [40]3 years ago

7 0

Answer:

Step-by-step explanation:

hope this helps!

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Help:<br> <img src="https://tex.z-dn.net/?f=1.%5C%20%26x%5E4-61x%5E2%2B900%3D0%20%5C%5C%202.%20%5C%20%26%20x%5E4-25x%5E2%2B144%3

yawa3891 [41]

$\bf{1) \ x^4-61x^2+900=0 }$

Applying the factorization method, for example:

$\bf{ 0=(x^2)^2-61(x^2)+900=(x^2-36)(x^2-25)}$

$\bf{\\ &=(x+6)(x-6)(x+5)(x-5); }$

$\bf{ x_1=6 \quad x_2=-6 \quad \ \ \ x_3=5 \quad x_4=5 }$

$\bf{2) \ x^4-25x^2+144=0 }$

Applying the factorization method:

$\bf{0&=(x^2)^2-25(x^2)+144=(x^2-16)(x^2-9) }$

$\bf{ =(x-4)(x+4)(x-3)(x+3); }$

$\bf{ x_1=4 \quad x_2=-4 \quad x_3=3 \quad x_4=-3 }$

7 0

1 year ago

A book normally costs 21.50. today it was on sale for 15.05. how much is the discount?

arsen [322]

Answer:

$6.45

Step-by-step explanation:

$21.50-$15.05=$6.45

6 0

3 years ago

Read 2 more answers

If we increase the distance traveled over the same period of time, this will

Marina86 [1]

increase the speed is definitely the answer

3 0

3 years ago

Read 2 more answers

The graph shows the total number of inches of snow after different numbers of hours.

erastova [34]

Answer:

A, is the answer.

Step-by-step explanation:

If you take two points and then find the slope between them you'll find that it is 1.5.

You could also make a T-chart or plug in the x coordinates into each possible equation and see which one matches the corresponding y coordinate.

8 0

2 years ago

I multiply or add 1st? 20+4x4=

vazorg [7]

Answer:

multiply

Step-by-step explanation:

8 0

3 years ago