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3 years ago

What's is the area in square centimeters of the trapezoid

1 answer:

4 0

I do not see the exact value, but this is the formula: $A=\frac{1}{2}\left(b_1+b_2\right)h=\frac{\left(b_1+b_2\right)h}{2}$

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Does someone mind helping me with this?

Contact [7]

Answer:

should be the 1st 2nd and the 4th one

Step-by-step explanation:

if not correct plz tell me

3 0

3 years ago

I need help with this equation m/121=7.3

Anna35 [415]

M=883.3 hope this helps!

3 0

3 years ago

Which system is equivalent to 3x squared - 4y squared = 25 over -6x squared -2y squared = 11

TEA [102]

So we are given the following system:
$3x^2-4y^2=25\\
-6x^2-2y^2=11\\\text{Multiply the second equation by -2:}\\12x^2+4y^2=-22\\\text{Add to the first equation we get:}\\15x^2=3
\text{ therefore }x=\pm \sqrt{ \frac{1}{5} }$
Using the first equation again we get:
$3x^2-4y^2=25\\
3x^2=4y^2+25\\
x^2= \frac{1}{3}(4y^2+25)\\x^2= \frac{1}{3}(4 \frac{1}{5} +25)\\= \frac{43}{5}\\x=\pm \sqrt{ \frac{43}{5} }$

3 0

3 years ago

Verena lives in a city where the ratio of sunny days to rainy days is 4 to 3.

alexandr402 [8]

12 rainy days because 16 divided by 4 is 4. SO, 4 times 3 is 12

8 0

3 years ago

PLEASE HELP ⁉️ POR FAVOR SOMEONE IM DESPERATE tHIS IS DUE IN THE mORiNG!

Makovka662 [10]

Answer:

See below

Step-by-step explanation:

1) Total points = 25
2) Points earned = 21
3) Percent score = 84%

Proportion:

21 / 25 = 84% / 100%

Solving the others in the table

21 out of 25 points:

21/25 = x/ 100 ⇒ x = 100*21/25 = 84

15 out of 20 points:

15/20 = x/100 ⇒ x = 100*15/20 = 75

47 out of 50 points:

47/50 = x/100 ⇒ x = 100*47/50 = 94

28 out of 30 points:

20 / 30 = x/100 ⇒ x = 100*20/30 = 66.66

19 out of 45 points:

19/45 = x/100 ⇒ x = 100*19/45 = 42.22

3 out of 4 points:

3/4 = x/100 ⇒ x = 100*3/4 = 75

3 0

2 years ago