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2 years ago

Please help. Is algebra.

Mathematics

1 answer:

Airida [17]2 years ago

3 0

Answer:

i believe

the first one it's (0,3)

the second is (4, -7)

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What equation results from completing the squre and then factoring x^2+10=15

nlexa [21]

For this case we must complete squares:

$x ^ 2 + 10x = 15$

We add the square of half the coefficient of the term "x",

$(\frac {b} {2a}) ^ 2$ on both sides of the equation:

$x^2+10x+(\frac {10} {2 (1)}) ^ 2 = 25 + 15\\x ^ 2 + 10x + 5 ^ 2 = 25 + 15$

According to the perfect square trinomial we have:

$(a + b) ^ 2 = a ^2 + 2ab + b ^ 2$

Rewriting the expression we have:

$a = x\\b = 5\\(x + 5) ^ 2 = 25 + 15\\(x + 5) ^ 2 = 40$

ANswer:

$(x + 5) ^ 2 = 40$

6 0

2 years ago

A number that, when multiplied with another number, yields a result of 1 is called its multiplicative ____.

Aliun [14]

Answer:

multiplicative inverse

Step-by-step explanation:

A number that is multiplied by it's multiplicative inverse equals one.

A multiplicative inverse is also called a reciprocal.

Example:

1/7 is 7's multiplicative inverse.

$\frac{7}{1} *\frac{1}{7} =\frac{7}{7} =1$

5 0

2 years ago

Read 2 more answers

How do you multiply hundreds by tens?

coldgirl [10]

Answer:

to multiply any number by 10, just tag ONE zero on the end. To multiply any number by 100, just tag TWO zeros on the end. To multiply any number by 1,000, just tag THREE zeros on the end. Note especially what happens when the number you multiply already ends in a zero or zeros.

5 0

2 years ago

F(x)= -2(x-5)^2+8

geniusboy [140]

I don’t know all of it but....
Axis of symmetry is x=5
Vertex changed to (5,8)
Parabola opens down

4 0

2 years ago

Emilio's vegetable patch is 7 yards wide and 15 yards long. Emilio wants to build a fence

madam [21]

It would cost $132. 7+7+15+15X3=132

7 0

2 years ago