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Alja [10]
3 years ago
12

What are facts about complementary angles?

Mathematics
1 answer:
r-ruslan [8.4K]3 years ago
7 0
Two angles that add up to 90%
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A group of 50 people were asked their gender and if they liked cats. The data from the survey are shown in the Venn diagram. Det
Alja [10]

Answer:

a = 13,

b = 28,

c = 6,

d = 22,

e = 31

Step-by-step explanation:

E = 15 +16 = 31

6 males like cats ( the middle section) so C = 6

d = 6 +16 = 22

a = 19-6 = 13

b = 50-22 = 28

so in order: a = 13, b = 28, c = 6, d = 22, e = 31

7 0
3 years ago
when you subtract one negative integer from another will your answer be greater than or less than integer you started with? Expl
pshichka [43]
Lets take   (-4) - (-6) 
             = -4 + 6     (here we changed the sign because in integers when you are                                                     subtracting <span>an integer, we put its opposite..thats the rule .)
            =. -4 + 6 = 2

so here we got the answer as 2 .....this shows that </span>your answer will be less than the integer you started with ....this is because here in subtraction we will first change the sign and then follow the same rules of addition ...so here if both the numbers have opposite signs then we subtract and put the greater number sign .....
<span>
Hope i am right !!!</span>
6 0
3 years ago
Piper can read 26 pages in an hour. Last summer she read for 112.5 hours. How many pages did Piper read last summer?
Marat540 [252]
The answer is 2,925 
to get the answer: 26*112=2912   .5 equals half an hour so half the pages
so you add 2912 + 13= 2925
3 0
3 years ago
How do you find 6x=-5y
eduard
6x=-5y
-5y=6x
so the answer is y=-6/5x
5 0
4 years ago
A The length of a rectangle is 4 m more
Lady bird [3.3K]

Given :

  • The length of a rectangle is 4m more than the width.
  • The area of the rectangle is 45m²

⠀

To Find :

  • The length and width of the rectangle.

⠀

Solution :

We know that,

\qquad { \pmb{ \bf{Length \times Width = Area_{(rectangle)}}}}\:

So,

Let's assume the length of the rectangle as x and the width will be (x – 4).

⠀

Now, Substituting the given values in the formula :

\qquad \sf \: { \dashrightarrow x  \times  (x - 4) = 45 }

\qquad \sf \: { \dashrightarrow {x}^{2}  - 4x = 45 }

\qquad \sf \: { \dashrightarrow {x}^{2}  - 4x - 45 = 0 }

\qquad \sf \: { \dashrightarrow {x}^{2}    - 9x+ 5 x - 45 = 0 }

\qquad \sf \: { \dashrightarrow x(x - 9) + 5(x - 9) = 0 }

\qquad \sf \: { \dashrightarrow (x  - 9) (x  + 5) = 0 }

\qquad \sf \: { \dashrightarrow x = 9, \: \: x =  - 5}

⠀

Since, The length can't be negative, so the length will be 9 which is positive.

⠀

\qquad { \pmb{ \bf{ Length _{(rectangle)} = 9\:m}}}\:

\qquad { \pmb{ \bf{ Width _{(rectangle)} = 9 - 4=5\: m}}}\:

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8 0
2 years ago
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