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zvonat [6]
3 years ago
12

Solve the equation. 9a = 81 what does a equal

Mathematics
2 answers:
Svetlanka [38]3 years ago
7 0

Answer:

a=9

divide 81 by 9 on both sides and you get 9.

Step-by-step explanation:

kvv77 [185]3 years ago
6 0

Answer:

a = 9

Step-by-step explanation:

To solve this equation for a, divide both sides by 9.  

The result is a = 81/9, or a = 9.

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Solve the equation.<br><br> 3(k−6)=15
Natali [406]

Answer:

K = 11

Step-by-step explanation:

3(k - 6) = 15

3k - 18 = 15

3k = 15 + 18

3k = 33

K = 33/3

K = 11

Thus, the value of K is 11

8 0
3 years ago
Which expression is a linear factor of x6 +x-66?
Naddik [55]

Answer:

Option D.

Step-by-step explanation:

The given expression is

x^6+x-66

It is a polynomial.

(x-c) is a linear factor of polynomial p(x) if p(c)=0.

Substitute x=-1 in the given expression.

(1)^6+(1)-66=-64\neq 0

It means (x+1) is not a linear factor of given expression.

Substitute x=-2 in the given expression.

(-2)^6+(-2)-66=-4\neq 0

It means (x+2) is not a linear factor of given expression.

Substitute x=-4 in the given expression.

(-4)^6+(-4)-66=4026\neq 0

It means (x+4) is not a linear factor of given expression.

None of the given options are a linear factor of given expression.

Therefore, the correct option is D.

7 0
3 years ago
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The ratio of black bags to blue bags is 5 to 3. If there are a total of 40 bags,
Simora [160]

Answer:

24

Step-by-step explanation:

3 0
3 years ago
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Determine whether (18+35)x4=18 +35x4 is true or false. explain
Marizza181 [45]
False, because it would no longer be 18 alone because of the disturbutive property.
8 0
3 years ago
PLEASE HELP I WILL GIVE 100 POINTS!!!!!!!!Given rectangle ABCD ~ HGFE , what is the length of HG ?
never [62]
Since rectangle ABCD is similar to  HGFE, the ratios of the lengths of their corresponding sides are equal. We can infer form our picture that AD is corresponding to EH and DC is corresponding to HG, so lets find the ratios of those corresponding sides and establish a proportion to find the length of HG:
\frac{AD}{EH} = \frac{DC}{HG}
We know that AD=45, EH=27, and DC=15, so lets replace those values in our proportion:
\frac{45}{27} = \frac{15}{HG}
HG= \frac{27*15}{45}
HG= \frac{405}{45}
HG=9

We can conclude that the length of the segment HG is 9.

8 0
3 years ago
Read 2 more answers
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