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fredd [130]
3 years ago
10

PLEASE HELP

Mathematics
1 answer:
suter [353]3 years ago
7 0
For part A add up all your students then add up all your students that like bike riding and skating (80+90) divide that by the total number of students who took the survey

For Part be put 20+40  over the toatl number of student then simplify
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If d(x)=9x^2 and g(x)=5x+7 then d(x)-g(x) can be rewritten as
Angelina_Jolie [31]

Answer:

9x^2-5x-7

Step-by-step explanation:

d(x)=9x^2\\g(x)=5x+7\\d(x)-g(x)=\\(9x^2)-(5x+7)=\\9x^2-5x-7

Hope this helps!

7 0
3 years ago
Read 2 more answers
1. Sally said that when you add or subtract positive or negative decimals, you can change the order of the decimals and still ge
Oduvanchick [21]

can you type the decimals in the comments
7 0
3 years ago
What are two numbers when multiplied get -40 and when added get 6
valentina_108 [34]
10 and -4. You multiply 10 times -4 to get -40 and you add 10 and -4 to get 6 
8 0
3 years ago
Tyyy uwu<br><br><br> Find the area:
marysya [2.9K]

Answer:

152 cm²

Step-by-step explanation:

area of rectangle A+rectangle B

12×6+8×10= 152cm²

<em>hope it helps, pls mark me brainliest</em>

5 0
2 years ago
HELP ME PLEASEEEEEEEE ASAPPPP !!
OLEGan [10]

Answer:

C and D

Step-by-step explanation:

Mathematically, a unit circle is one in which the value of the radius is 1 unit

Generally, for a unit circle we have it that;

r^2 = x^2 + y^2

where (x,y) represents the coordinates of a point on the unit circle

But from above, r = 1

Thus:

x^2 + y^2 = 1

Looking at option C, by squaring each coordinate, we have

(6/7)^2 = 36/49 and the second as 13/49

by adding both, we have

36/49 + 13/49 = 49/49 = 1

Thus, we have this as a coordinate on the unit circle

For the last option;

(5/13)^2 = 25/169 and (12/13)^2 = 144/169

Adding both, we have;

25/169 + 144/169 = 169/169 = 1

So this is also a point on the unit circle

5 0
3 years ago
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