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11Alexandr11 [23.1K]
3 years ago
10

ABCD is a trapezium Calculate the area of ABCD

Mathematics
1 answer:
nirvana33 [79]3 years ago
3 0

Answer:

87.5 cm squared

Step-by-step explanation:

Equation: 1/2h(b1+b2)^2. Add the two bases to get fifteen, multiply that by the height, 7, to get 175, divide that by 2(or multiply it by 1/2)

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What is the slope of y=x+5
Ghella [55]

Answer:

m = 1

Step-by-step explanation:

1x is the slope without the 'x', it's 1.

6 0
2 years ago
Can someone help me please I’ll mark u as brainliest
Sunny_sXe [5.5K]
Hi yes what do u need help with??
6 0
3 years ago
5 (x + 2) = 3 (x + 8)
aleksley [76]
So first you distribute the 5 to the x and the +2 and get
5x+10=3(x+8)
 then you distribute the 3 to the other x and the +8 and get
5x+10=3x+24
subtract 3x from both sides
2x+10=24
subtract 10 from both sides and get
2x=14
divide both sides by 2 and get
x=7
8 0
3 years ago
Read 2 more answers
Thea has a key on her calculator marked $\textcolor{blue}{\bf\circledast}$. If an integer is displayed, pressing the $\textcolor
worty [1.4K]

Answer:

$9$

Step-by-step explanation:

Given: Thea enters a positive integer into her calculator, then squares it, then presses the $\textcolor{blue}{\bf\circledast}$ key, then squares the result, then presses the $\textcolor{blue}{\bf\circledast}$ key again such that the calculator displays final number as $243$.

To find: number that Thea originally entered

Solution:

The final number is $243$.

As previously the $\textcolor{blue}{\bf\circledast}$ key was pressed,

the number before $243$ must be $324$.

As previously the number was squared, so the number before $324$ must be $18$.

As previously the $\textcolor{blue}{\bf\circledast}$ key was pressed,

the number before $18$ must be $81$

As previously the number was squared, so the number before $81$ must be $9$.

3 0
3 years ago
Question 11 Multiple Choice Worth 1 points)
Viefleur [7K]

Answer:

x = 35

Step-by-step explanation:

First, we need to add the angles on a straight line and subtract them by 180 (because angles on a straight line adds up to 180)

56 + 51 = 107

180 - 107 = 73

Now that we have found the angle of y, we can find the angle of x now. Because angles in a triangle adds up to 180, we have to add 72 and 73 now.

72 + 73 = 145

And now subtract it from 180

180 - 145 = 35

So x = 35

8 0
2 years ago
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