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3 years ago

Identify the values of a , b , and c in the following quadratic equation. 2 x2 + 3 x + 7 = 0

Mathematics

2 answers:

Liula [17]3 years ago

8 0

Depends on where you are in the math book but this would be the most simple way.
n= number
sqar(-1) = i

SCORPION-xisa [38]3 years ago

5 0

Answer:

a = 2, b = 3, c = 7

Step-by-step explanation:

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64 Divied by 3274? sorry erally bad at this

Evgen [1.6K]

64/3274=0.019547954
Hope this helps.

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3 years ago

4 (3×-1)=3+8×-11 2 (t+2)+5t=6t+11

babymother [125]

X= -1 t= 7

4(3x-1)=3+8x-11
12x-4=3+8x-11
12x-8x=4+3-11
4x= -4
\4. \4
x= -1

2t+4+5t=6t+11
2t-6t+5t=-4+11
1t=7
\1. \1
t=7

3 0

3 years ago

PART A: Mrs. konsdorf claims that angle R is a right angle.Is Mrs. konsdorf correct? explain your reasoning PART B: if T is trab

Anna007 [38]

Answer:

Part A: Angle R is not a right angle.

Part B; Angle GRT' is a right angle.

Step-by-step explanation:

Part A:

From the given figure it is noticed that the vertices of the triangle are G(-6,5), R(-3,1) and T(2,6).

Slope formula

$m=\frac{y_2-y_1}{x_2-x_1}$

The product of slopes of two perpendicular lines is -1.

Slope of GR is

$\text{Slope of GR}=\frac{1-5}{-3-(-6)}=\frac{-4}{3}$

Slope of RT is

$\text{Slope of RT}=\frac{6-1}{2-(-3)}=\frac{5}{5}=1$

Product of slopes of GR and RT is

$\frac{-4}{3}\times 1=\frac{-4}{3}\neq -1$

Therefore lines GR and RT are not perpendicular to each other and angle R is not a right angle.

Part B:

If vertex T translated by rule

$(x,y)\rightarrow(x-1,y-2)$

Then the coordinates of T' are

$(2,6)\rightarrow(2-1,6-2)$

$(2,6)\rightarrow(1,4)$

Slope of RT' is

$\text{Slope of RT'}=\frac{4-1}{1-(-3)}=\frac{3}{4}$

Product of slopes of GR and RT' is

$\frac{-4}{3}\times \frac{3}{4}=-1$

Since the product of slopes is -1, therefore the lines GR and RT' are perpendicular to each other and angle GRT' is a right angle.

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3 years ago

one of the angles of a triangle is 80 and other two angles are equal find the measure of each of the equal angles

mina [271]

Answer:

50°

Step-by-step explanation:

Let measure of one equal side be x.

80° +x +x = 180°[ sum of interior angle of triangle is 180°]

= 2x = 180° -80°

= x = 100°/2

=x = 50°

7 0

3 years ago

An experiment consists of rolling a number cube. What is the probability of rolling two 4's in a row?

tigry1 [53]

Answer:2/12

Step-by-step explanation:

8 0

3 years ago

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