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Lesechka [4]
3 years ago
12

Write the quadratic equation y= x^2 -6x = 7 in vertex form.

Mathematics
1 answer:
lapo4ka [179]3 years ago
7 0

Answer:

(x - 3)² - 16 = 0

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Subtract 7 from both sides

x² - 6x + 7 = 0 ← in standard form

with a = 1, b = - 6

Given a quadratic in standard form then the x- coordinate of the vertex is

x_{vertex} = - \frac{b}{2a} = - \frac{-6}{2} = 3

Substitute x = 3 into the equation for y

y = 3² - 6(3) - 7 = 9 - 18 - 7 = - 16 ⇒ (h, k) = (3, - 16)

y = (x - 3)² - 16 = 0

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In triangle STU, u2 = s2 + t2.
sineoko [7]

Answer:

(B) The measure of angle SUT is equal to 90 degrees

Step-by-step explanation:

It is given that in In triangle STU, u^2=s^2+t^2.

We can see from the triangle and also the given condition that the triangle will be right triangle as it is satisfying the Pythagoras theorem.

(Hyp)^2=(Base)^2+(Perpendicular)^2

that is:

u^{2}=s^{2}+t^{2}

where u is the hypotenuse, s is the base and t is the perpendicular.

Thus, the angle SUT should be of 90°.

Thus, The measure of angle SUT is equal to 90 degrees.

Hence, option B is correct.

3 0
4 years ago
Find f(-2) for f(x) = 3 • 2x<br><br> A. -36<br> B. -12<br> C. 1/36<br> D. 3/4
sattari [20]
Answer: B

Explanation:

Given, f(x) = 3 • 2x

So , f(-2)=> x= -2

f(-2)= 3 • 2(-2)

f(-2)= 3 •(-4)

f(-2)= -12

7 0
3 years ago
Simply the function f(x)=7(3Square root 54^x)
Pie

Answer:

54 = 2 × 3 × 3 × 3 = 2 × 3³

f(x) = 7(\sqrt[3]{54})^x

f(x) = 7(\sqrt[3]{3^3 \times 2})^x

f(x) = 7(3\sqrt[3]{2})^x

Initial value: x = 0

f(0) = 7(3\sqrt[3]{2})^0

f(0) = 7(1)

f(0) = 7

The initial value is 7.

The domain is all real numbers.

The range is all real numbers greater than zero.

8 0
2 years ago
Greatest common factor of 34 and 48
Valentin [98]
34|2
17|17
1

48|2
24|2
12|2
6|2
3|3
1

GCF(34,48)=2
4 0
3 years ago
HELPPPPPP ASAP
Morgarella [4.7K]

what he was saying is the first drop down is B. y+x=6 and the second drop down is D.(-2, -8)

6 0
3 years ago
Read 2 more answers
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