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3 years ago

Hey can you please help me posted picture of question :)

Mathematics

2 answers:

scoray [572]3 years ago

3 0

X^2-7x+38=5x+3
x^2-7x+38-5x-3=5x+3-5x-3
x^2-12x+35=0
Factoring:
(x-5)(x-7)=0
Two solutions:
x-5=0→x-5+5=0+5→x=5
x-7=0→x-7+7=0+7→x=7
Answer: x=5 and x=7

Answer: Options B. 7 and D. 5

seropon [69]3 years ago

3 0

Answer:
The solutions are: 5 and 7

Explanation:
First we would need to put the equation in the standard form which is:
ax² + bx + c = 0
This can be done as follows:
x² - 7x + 38 = 5x + 3
x² - 7x + 38 - 5x - 3 = 0
x² - 12x + 35 = 0
By comparison:
a = 1
b = -12
c = 35

Now, to get the roots, we would need to use the quadratic formula attached in the images.
By substitution, we would find that:\
either x = $\frac{12+ \sqrt{(-12)^2-4(1)(35)} }{2(1)} = 7$

or x = $\frac{12- \sqrt{(-12)^2-4(1)(35)} }{2(1)} = 5$

Hope this helps :)

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Mama L [17]

Answer:

A) y=mx+b

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E)The y-intercept of the line is the value of y where the line crosses the y-axis.

F)The x-intercept of the line is the value of x where the line crosses the x-axis.

G) The point-slope formula is y-y1=m(x-x1)

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8 0

3 years ago

A rectangular field is two times as long as it is wide. If the perimeter of the field is 450 feet, what are the dimensions of th

lys-0071 [83]

Hi There,

----------------------------------------

We Know:

Total Perimeter = 450 feet

Length is 2 times the width.

----------------------------------------

Solution:

Length = 150

Width = 75

75 x 2 = 150

150 + 150 + 75 + 75 = 450

----------------------------------------

Answer:

Length = 150 feet.

Width = 75 feet.

----------------------------------------

Hope This Helps :)

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3 years ago

Circle D circumscribes ABC and ABE. Which statements about the triangles are true? Statement I: The perpendicular bisectors of A

mestny [16]

Answer:

The correct option is;

B. I and II

Step-by-step explanation:

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Which the indicates that the perpendicular the bisectors of the sides of ΔABC and ΔABE will pass through the same point which is the circle center D

Statement II: The distance from C to D is the same as the distance from D to E

The above statement is correct because, D is the center of the circumscribing circle and D and E are points on the circumference such that distance C to D and D to E are both equal to the radial length

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Statement III: Bisects CDE

The above statement may be requiring more information

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3 years ago

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Ksenya-84 [330]

Answer:

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Step-by-step explanation:

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