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lutik1710 [3]
3 years ago
12

Can someone help me with my homework

Mathematics
1 answer:
aniked [119]3 years ago
3 0
Cliff entered on the 10th floor
Up floors would be plus
Down floors would be minus

10+5=15
15-7=8
8+3=11
11-10=1
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What number goes I the blanket make this equation true 17-9 = 6+ ____
NeTakaya

Answer:

2

Step-by-step explanation:

well first do 17-9= (17-7)-2=10-2=8

so 8=6+_

subtract 6 from both sides and you get

2=_

so the blank is 2

7 0
2 years ago
Read 2 more answers
Are these two expressions equivalent? Use the
Rina8888 [55]

Answer:

No, they are not equivalent

Step-by-step explanation:

8x + 3(x + y)

8x + 3x + 3y

11x + 3y

7x + 7y + 4x + 4y

11x + 11y

They are not equivalent because in one of the equations, the like terms add up to 11y which is different from the other equation which adds up to 3y.

I hope this helps.

8 0
3 years ago
Willing to brainlist solve 16-17 please during this exam
ivann1987 [24]

Answer:

16. B

17. B

Step-by-step explanation:

16. The intercept form of the parabola is

y=a(x-x_1)(x-x_2),

where x_1, x_2 are two x-intercepts.

In your case,

x_1=2\\ \\x_2=-8

so

y=a(x-2)(x-(-8))\\ \\y=a(x-2)(x+8)

To find <em>a</em>, substitute coordinates of the point (-6,-4) parabola is passing through

-4=a(-6-2)(-6+8)\\ \\-4=-16a\\ \\a=\dfrac{1}{4}

and

y=\dfrac{1}{4}(x-2)(x+8)

17. The vertex form of the parabola equation is

-2p(y-k)=(x-h)^2,

where <em>(h,k)</em> are the coordinates of the vertex and sign "-" because parabola goes down.

In your case, vertex is (2,3), so

-2p(y-3)=(x-2)^2

The vertex is 3 units from the focus, then

\dfrac{p}{2}=3\\ \\p=6

The equation of the parabola is

-2\cdot 6(y-3)=(x-2)^2\\ \\y=-\dfrac{1}{12}(x-3)^2+3

8 0
4 years ago
Will mark as brainless if you answer correctly
Alinara [238K]

Answer:

ans=10

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
18 out of the 36 books on John's bookshelf are about animals. What percentage of his books are about animals?
muminat

Answer:

50%

Step-by-step explanation:

36 divide by 18 equals 2

7 0
3 years ago
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