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andreyandreev [35.5K]

3 years ago

7

what is -4.7+4.2 equal. please help I have a C+ in math and I need to find the answer to this question. so, please, please, plea

se, please, please help

1 answer:

lana66690 [7]3 years ago

3 0

Answer:

-0.5

Step-by-step explanation:

-4.7+4.2 = -0.5

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avanturin [10]

Answer:

The correct answer is "1668". A further solution is provided below.

Step-by-step explanation:

According to the question,

Estimated proportion,

$\hat{p} = \frac{574}{1007}$

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Margin of error,

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Level of confidence,

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Critical value,

$Z_{0.10}=1.65$

Now,

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3 years ago

24 loaves of bread cost 48 dollars how much does 10 loaves cost?

vladimir1956 [14]

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3 years ago

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Find the least whole number that can replace _ to make the statement true _ ÷ 9 > 70

Semenov [28]

A>70*9
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3 years ago

Which list of decimals is not in descending order?

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What numbers are zeros of g(x) = x^2 - 2x - 4? take your time if you need to!

ipn [44]

Answer:

$x = 1 + \sqrt5, x = 1 - \sqrt5$

Step-by-step explanation:

Hello!

We can solve the quadratic by using the quadratic formula.

Standard form of a quadratic: $ax^2 + bx + c = 0$

Quadratic Formula: $x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}$

Given our Equation: $g(x) = x^2 - 2x - 4$

a = 1
b = -2
c = -4

Plug the values into the equation and solve.

<h3>Solve</h3>

$x = \frac{-b\pm\sqrt{b^2 - 4ac}}{2a}$
$x = \frac{-(-2)\pm\sqrt{(-2)^2 - 4(1)(-4)}}{2(1)}$
$x = \frac{2\pm\sqrt{4 +16}}{2}$
$x = \frac{2\pm\sqrt{20}}{2}$
$x = \frac{2\pm\sqrt{4 * 5}}{2}$
$x = \frac{2\pm(\sqrt4 * \sqrt5)}{2}$
$x = \frac{2\pm2\sqrt5}{2}$
$x = 1 + \sqrt5, x = 1 - \sqrt5$

7 0

2 years ago