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3 years ago

PLEASE PLEASE HELP MEASAP!!!!!

Mathematics

1 answer:

Cerrena [4.2K]3 years ago

7 0

Answer:

What exactly do you need help with?

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Y = x + 2 y = 3x - 4

exis [7]

Answer:

x=3; y=5

Step-by-step explanation:

y=x+2

y=3x-4

so x+2=3x-4

2x=6

x=3

because y=x+2

x=3

so y=3+2

8 0

3 years ago

there are 100 movies at the store 30/100 are action movies 50/100 are comedies and 20/100 are adventure movies what part of the

pogonyaev

Answer:30 action and 50 comedies which is 80/100 or 80%/100%

Step-by-step explanation:

8 0

3 years ago

List the ages of your family and find the average age 55,34,26,24,19,17

Dmitriy789 [7]

Answer:

Soln: 

 

 Total ages = 175

 No. of ages= 6 

 Now,

Average age= Total ages/no. of ages

 

 = 175/6 

 = 29.167 ans.

4 0

2 years ago

The circle C has centre A(2,1) and passes through the point B(10,7). Find and equation for C

Semmy [17]

The equation of a circle:
$(x-h)^2+(y-k)^2=r^2$
(h,k) - the coordinates of the centre
r - the radius

$A(2,1) - \hbox{the centre} \\
h=2 \\ k=1 \\ \\
(x-2)^2+(y-1)^2=r^2 \\ \\
\hbox{passes through B(10,7)} \\
x=10 \\
y=7 \\ \\
(10-2)^2+(7-1)^2=r^2 \\
8^2+6^2=r^2 \\
64+36=r^2 \\
r^2=100 \\ \\
\hbox{the equation:} \\ \boxed{(x-2)^2+(y-1)^2=100}$

7 0

3 years ago

What is the value of the discriminant? 2K2 = 10k - 2

Phoenix [80]

Answer:

Step-by-step explanation:

Given a quadratic equation in standard form, ax² + bx + c = 0 : a ≠ 0

Then the discriminant is Δ = b² - 4ac

2k² = 10k - 2 ( subtract 10k - 2 from both sides )

2k² - 10k + 2 = 0 ← in standard form

with a = 2, b = - 10 and c = 2, thus

b² - 4ac = (- 10)² - (4 × 2 × 2) = 100 - 16 = 84

7 0

2 years ago

PLEASE PLEASE HELP MEASAP!!!!!​

PLEASE PLEASE HELP MEASAP!!!!!