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zepelin [54]
3 years ago
14

Please help me with this question​

Mathematics
1 answer:
Vadim26 [7]3 years ago
6 0
Answer: -1/3


hope this helps
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Brielle made a color using 2 cups of white paint and 3
Rudiy27

Answer:

she should mix 6 cups of green paint with 4 cups of white paint

Step-by-step explaination:

you are just multiplying by 2. 2 times 2=4 cups of white paint. So the same thing you do to both sides, 2 times 3=6

so the answer is 6 cups of green paint

4 0
3 years ago
Convert the equation r = 12 sin theta to Cartesian coordinates. Describe the resulting curve.
VLD [36.1K]

Answer:

Step-by-step explanation:

Given that there is a polar equation as

r=12 sin \theta

This has to be converted into cartesian.

We know the conversion is

r^2 =x^2+y^2 \\tan \theta = \frac{y}{x}

Using this we can say that

sin^2 \theta = 1-cos^2 \theta \\= 1-\frac{1}{sec^2 \theta} \\=1-\frac{1}{1+tan^2 \theta} \\=1-\frac{1}{1+\frac{y^2}{x^2} } \\=1-\frac{x^2}{x^2+y^2} \\=\frac{y^2}{y^2+y^2}

\sqrt{x^2+y^2} =12(\frac{y}{\sqrt{x^2+y^2} } \\x^2+y^2 =12y\\x^2+y^2-12y+36 = 36\\x^2+(y-6)^2 = 6^2}

Circle with centre (0,6) and radius 6.

7 0
3 years ago
This question is too hard
OLga [1]

Answer:

27 children

Step-by-step explanation:

For every 9 children, there are 4 adults. Those numbers added together equal 13. Now, if we divide the total number of adults and children by 13, we will get the number of how many groups there are of 9 kids and 4 adults.

39 / 13 = 3

There are 3 groups of 9 kids and 4 adults, which means to find the total number of children, we have to multiply 3 by 9.

3 * 9 = 27

Therefore, there are 27 children total. I know this was probably really confusing, but I hope it helped in some way! Have a lovely day!! :)

3 0
2 years ago
What is 2/5 + 1/9 I need help
Fantom [35]
Find the LCD of both fractions and that is 45.

Make the denominators the same as the LCD

Simplify, now denominators are the same

join the denominators

simplify 

Answer: 23/45
5 0
3 years ago
1. If x+ 2 = 7, then x=5.<br> Converse:<br> Inverse:<br> Contrapositive:
fenix001 [56]

Answer:

Converse: if 5=x then x+2=7

Inverse: if x+2 doesnt = 7 then x isnt 5

Contrapositive: if x doesnt equal five then x plus two doesnt equal seven

Step-by-step explanation:

We just did this last week :)

7 0
3 years ago
Read 2 more answers
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