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mario62 [17]
3 years ago
7

Proportions and equations solve

Mathematics
1 answer:
kirza4 [7]3 years ago
7 0
Y=9x because if you divided y by x all the numbers will  equal to 9 which is proportional
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The radius of a sphere is 6 units.
tino4ka555 [31]

Answer: The radius of a sphere is 6 units

Step-by-step explanation:

3 0
3 years ago
Please please help me with this question please now and show your steps
sattari [20]

Answer:

y =  {x}^{2}  - 8x + 7 \\ a = 1 \: and \: b = -  8 \\ the \: line \: of \: symmetry \:  \\ x =  \frac{ - b}{2a}  =  \frac{8}{2}   \\ x = 4(line \: of \: symmetry) \\ y =  {4}^{2}  - 8(4) + 7  \\ = 16 + 32 + 7 = y = 55 \\ vertix \: is \: (4  ,55) \\ y =  {0}^{2}  - 8(0) + 7 \\ y = 7 \\ 0 =  {x}^{2}  - 8x + 7 \\ (x - 7)(x - 1) = 0

6 0
2 years ago
Please help!!!!!!!!!!!!!!!!!! -3x+2 less than 8
sleet_krkn [62]
-3x+2 < 8
-2 -2
-3 /-3x <6/-3
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So x>-2
7 0
3 years ago
At the dog park on Monday, the ratio of small dogs to all dogs was three to seven. A total of 42 dogs were at the park. How many
faust18 [17]

Answer:

18 small dogs

Step-by-step explanation:

Given the ratio  of small dogs to all dogs was 3:7

Total dogs that are there = 42 dogs

Number of small dogs there = ratio of small/ratio of all dogs * Total dogs

Number of small dogs there = 3/7 * 42

Number of small dogs there = 3 * 6

Number of small dogs there = 18

Hence there are 18 small dogs there

7 0
3 years ago
Determine the number of possible triangles, ABC, that can be formed given A = 30°, a = 7, and b = 18.
zzz [600]

Answer:

none

Step-by-step explanation:

We are given a triangle ABC with ∠A = 30°, sides a = 4 and b = 10.

According to the 'Law of Sines- Ambiguous Case', we have,

If a < b×sinA, then no triangle is possible.

If a = b×sinA, only one triangle is possible

If a > b×sinA, two triangles are possible.

So, we have,

b×sinA = 10 × sin30 = 10 × 0.5 = 5.

Now, as

4 = a < bsinA = 5.

We get, according to the rule, no triangle is possible.

8 0
2 years ago
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