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laila [671]
3 years ago
8

Help me with question a please on this question

Mathematics
2 answers:
Bess [88]3 years ago
4 0

Answer:

right trapezoid

Step-by-step explanation:

It has four sides with at least one pair of parallel sides.

avanturin [10]3 years ago
3 0
It is classified as a trapizoid
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If alpha and beta are the zeroes of the polynomial f(x)= xsquare -8x +gamma such that alpha - beta = 2 find the value of gamma.
Komok [63]

Answer:

Γ = 15

Step-by-step explanation:

Given

f(x) = x² - 8x + Γ

with a = 1, b = - 8 and c = Γ , then

sum of zeros α + β = - \frac{b}{a} = - \frac{-8}{1} = 8

product of zeros = αβ = \frac{c}{a} = Γ

Given α - β = 2 , then

(α - β)² = 2²

α² - 2αβ + β² = 4 → (1)

and

(α + β)² = 8²

α² + 2αβ + β² = 64 → (2)

Add (1) and (2) term by term

2α² + 2β² = 68 ( divide through by 2 )

α² +β² = 34

Substitute α² + β² = 34 into (1)

34 - 2αβ = 4 ( subtract 34 from both sides )

- 2αβ = - 30 ( divide both sides by - 2 )

αβ = 15

Now

αβ = Γ = 15

Thus

f(x) = x² - 8x + 15

4 0
3 years ago
Consider a graph for the equation y= -3x+4. What is the y intercept?
Alexeev081 [22]

Answer:

A

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = - 3x + 4 is in this form

with y- intercept c = 4 → A


3 0
3 years ago
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Do y’all know how to do this...help please:)
Y_Kistochka [10]

Answer:

I recommend using a graph that can help. For slope afind two solid points and make it a fraction. Y intercept is where it passes through the y axis.

Step-by-step explanation:

5 0
3 years ago
What is the square root of -84
gtnhenbr [62]
The answer for this question is 9 I
3 0
3 years ago
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Standerd form example
slega [8]
3951 is an example of a standard form. 

What standard form means is the number is written in numerical form. 

More examples: 5269, 95862, 125634, etc. 

3 0
3 years ago
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