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Oksanka [162]
2 years ago
10

Please help me with this problem

Mathematics
1 answer:
Anni [7]2 years ago
4 0
Area of a trapezoid :
\frac{1}{2}  \times (a + b)h
Where a & b are sides & h is the height

So,
\frac{1}{2}  \times (12.2 + 10.2) \times 12.6 \\  = 141.12

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Mr.Chang has a bunch of ballons.4/8 of the ballons are red.2/8 of the ballons are blue.What fraction of the ballons are neather
djverab [1.8K]

Answer:

The amount that are neither red nor blue are 2/8 or 1/4

Step-by-step explanation:

In order to find this, subtract both fractions from 1.

1 - 2/8 - 4/8

8/8 - 2/8 - 4/8 = 2/8

2/8 can be simplified to 1/4

4 0
3 years ago
15 POINTS !!
Roman55 [17]
The scale factor is  0.25, not 4 in this case.  You can determine this by looking at the comparison of the triangles.  The first triangle is 4.4 and the second one is 1.1, so the scale factor is determined by looking at what is happening to the first one to result in the second.

0.25 is 1/4.  The second hypotenuse is 1/4 the hypotenuse of the first one.
4 0
3 years ago
Read 2 more answers
find the consecutive even integers such that three times the larger number is 30 more than the smaller one. help :')
Minchanka [31]

Answer:

12 and 14

Step-by-step explanation:

Let the even integers be x and x+2

three times the larger number is expressed as 3(x+2)

30 more than the smaller one is x + 30

Equating both expressions

3(x+2) = x +30

Find x

3x+6 = x+30

3x-x = 30-6

2x = 24

x = 12

The second integer is 12+2 = 14

Hence the required integers are 12 and 14

4 0
2 years ago
Which of the following scenarios represents a combination? The number of ways 30 people can finish in the first 3 positions. The
lyudmila [28]

Answer:

B. The number of possible pizzas that can be made with 12 possible toppings.


5 0
3 years ago
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Which of the following would be an acceptable first step in simplifying the expression (sinx)/(1 + sinx) ?. A.1/(cscx + sinx). B
Alex73 [517]
We are given with the function <span>(sinx)/(1 + sinx). To simplify the equation, we multiply the denominator with its conjugate. Hence the expression becomes (</span>sinx)(1-sin x )/(1 + <span>sinx)(1-sin x). Then we convert the expression into </span>(<span>sinx)(1-sin x )/ cos^2 x. Using trigonometric functions, we can then simplify the expression.</span>
5 0
3 years ago
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