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Fofino [41]
3 years ago
8

Is the answer b? If not then what’s the answer

Mathematics
2 answers:
solmaris [256]3 years ago
5 0
The correct answer is b. Hope i helped you!!!
m_a_m_a [10]3 years ago
3 0
I would say the answer is b, because it is a rhombus gape and all sides are congruent and there are 4 sides
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Solve the inequality<br> 3 + 9x &gt;4(x+7)<br> pls help
alexandr402 [8]

Answer:

x<5

Step-by-step explanation:

the greater sign will firstly be changed to = for better solving so we obtain

3+9x=4(x+7)by opening bracket

3+9x=4x+28

9x-4x=28-3

5x=25

divide all through by 5x

we obtain

x=5

the greater sign change here

which is x<5

8 0
3 years ago
if a quadratic equation with real coefficients has a discriminant of -36 then what type of roots does it have
Aleks04 [339]

Step-by-step explanation:

We have,

If a quadratic equation with real coefficients has a discriminant of -36.

The general form of quadratic equation is :

ax^2+bx+c=0

The discriminant of this equation is : D=b^2-4ac

If D=0, it will have 1 real roots

If D>0, it will have 2 real roots

If D<0, it will have no real roots

We have,

D = -36 < 0, so, the quadratic equation will have no real roots.

5 0
3 years ago
Coefficient of b in expansion of (3+b)^4
Margarita [4]
Are you sure you want ONLY the coefficient of b?  If you expand this, you will have b in 3 of 4 terms.

According to Pascal's Triangle, the coefficients of (a+b)^4 are as follows:

                             1
                        1    2    1
                   1      3    3     1
              1       4     6     4     1

So (a+b)^4 would be 1a^4 + 4a^3b + 6a^2b^2 + 4ab^3 + b^4

Here, you want (3 + b)^4.  Here's what that looks like:

3^4 + 4[3^3*b] + 6[3^2*b^2] + 4[3*b^3] + 1[b^4]

Which coeff did you want?
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3 years ago
Under federalism who was directly responsible for protecting the people​
Alex Ar [27]

Answer: The knights were responsible for protecting the people.

6 0
3 years ago
Which expression is equivalent to (7-8) (78)?
Gre4nikov [31]

-78

Step-by-step explanation:

(7-8)(78)

(-1)(78)=-78

8 0
2 years ago
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