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alisha [4.7K]
3 years ago
14

1. Find the value of the variable x. A) 7 √2/2 B) 7 √3/2 C) 14 √3 D) 14/3

Mathematics
1 answer:
Simora [160]3 years ago
6 0

Answer:

\frac{ \sqrt{7} }{2}

Step-by-step explanation:

The triangle is an isosceles triangle. Because the triangle is an isosceles triangle, the height and base of the triangle are equal to eachother.

a² + b² = c²

right now we have c² which is 7

a² + b² = 7

\frac{ \sqrt{7} }{2}

because a² and b² are = to eachother

now im lost dony listen to me lol.

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On a team, 7 girls and 2 boys scored a total of 64 points. The difference between the number of points scored by the 7 girls and
Makovka662 [10]

Answer:

Each girl scores 8 points while each boy scores 4 points

Step-by-step explanation:

Let the number of point scored by the 7 girls and 2 boys be x and y respectively.

Thus, since 7 girls and 2 boys scored a total of 64 points, then;

7x + 2y = 64 - - - (1)

Also, difference between the number of points scored by the 7 girls and the number of points scored by the 2 boys is 48. Thus;

7x - 2y = 48 - - - (2)

Add eq(1) to (eq 2) to get;

14x = 64 + 48

14x = 112

x = 112/14

x = 8

Put 8 for x in eq(1) to get;

7(8) + 2y = 64

56 + 2y = 64

2y = 64 - 56

2y = 8

y = 8/2

y = 4

Thus,each girl scores 8 points while each boy scores 4 points

3 0
3 years ago
Write the equation of a line with a slope of 4 and a y-intercept of −3.
olga_2 [115]

Answer:

D. y = 4x − 3

Step-by-step explanation:

Just took the test and got 100%

7 0
3 years ago
On Thursday, a local hamburger shop sold a combined total of 234 hamburgers and cheeseburgers. The number of cheeseburgers sold
Ratling [72]

Hey there! I'm happy to help!

Let's call the hamburgers h and the cheeseburgers c.

h+c=234

c=2h

Let's plug this value of c into the first equation to solve for h.

h+2h=234

3h=234

Divide both sides by 3.

h=78

Therefore, 78 hamburgers were sold on Thursday.

Have a wonderful day! :D

4 0
4 years ago
What does FOIL stand for?
aev [14]
First
Outer
Inner
Last

it is a way of remembering how to multiply binomials
it tells which terms to multiply

example
(x+3)(x+4)

First (multiply first terms)
x times x=x²

Outer (multiply outer terms)
x times 4=4x

Inner (multiply inner terms)
3 times x=3x

Last (multiply last terms)
3 times 4=12

now add them all
x²+4x+3x+12
x²+7x+12

that is what FOIL is
4 0
3 years ago
Kim drives 156 miles from rotherham to London.She has an average speed of 60 miles per hour.
kicyunya [14]
Currently, you would ask "How long does it take to get from Rotherham to London?" You would do 156/60, which would be 2.6 hours. 2.6 hours is 156 minutes (2 hours, 36 minutes).
9:36 is when Kim would reach London, so yes.
5 0
3 years ago
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