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mixer [17]
3 years ago
10

-7p X (-4r) X 39......​

Mathematics
1 answer:
julia-pushkina [17]3 years ago
6 0

Answer:

Step-by-step explanation:

if the question is

-7p * -4r * 39

then it's

-1*-1*7*4*39*p*r

now you just need a calculator to find the numbers that are multiplied together

-1 * -1 = 1

7*4=28

28*39*p*r

1092*p*r

1092pr

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Solve the quadratic equation by completing the square. x^2+14x+47=0. What is the form and solution?
Phoenix [80]
To complete a square for ax²+bx+c, you first make a=1.
in this case, a is already 1
move c to the right side: x²+14x=-47
next, add (1/2 of b)² to both sides, in this case, b=14, half of 14 is 7, so x²+14x+ 7²=-47+7²
the left side is now a perfect square: (x+7)²=2
x+7=√2 or x+7=-√2
x=√2-7, or x=-2-√7
4 0
3 years ago
A local Little league has a total of 60 players, 80% of who are right-handed. Write and solve a proportion that could be used to
ra1l [238]

Answer:

48 people are right handed. 12 are left handed

Step-by-step explanation:

80% of 60 is 48.

6 0
3 years ago
URGENT...Please help me with this question!!!!!!
Hunter-Best [27]

Answer:

option 2

Step-by-step explanation:

The problem can be solved using Pythagoras' identity for a right triangle.

The angle between due East and due North is 90°

The solution here involves using the Cosine rule.

let x be the direct distance between house and office, then

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Note that since cos90° = 0 the equation reduces to

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6 0
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If g(x) = 2x + 3 and f(x) = x<br><br>2 − 49x, find all solutions of the equation f(g(x)) = 0.
sdas [7]
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You then just have to solve for 0

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KonstantinChe [14]

Answer:

-16, 16, 16

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1) -16

2) 16

3) 16

6 0
2 years ago
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