3 years ago

URGENT: Which of the statements must be true? select all that apply

Mathematics

1 answer:

Valentin [98]3 years ago

3 0

The answer to your question is 1,3, and 5 i think but im not sure

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Solve the equation by completing the square. Round the square. Round to the nearest hundredth if necessary. x2 - 3x -12 =0

dmitriy555 [2]

A:5.27,-2.27 should be your answer

5 0

3 years ago

Mattie uses the discriminant to determine the number of zeros the quadratic equation 0 = 3x2 – 7x + 4 has. Which bestdescribes t

Katyanochek1 [597]

Discriminant Formula: b² - 4ac, with a = x^2 coefficient, b = x coefficient, and c = constant

So firstly, using our equation plug in the values into the discriminant formula and solve as such:

(-7)² - 4 × 3 × 4

49 - 48

So our discriminant is 1. <u>Since 1 is positive and a perfect square, this means that there are 2 real, rational solutions.</u>

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3 years ago

For every pound a company spends on advertising, it spends £0.43 on its website. Express the amount spent on advertising to its

Wittaler [7]

Answer:

£1 : £0.43

Step-by-step explanation:

So to make the ratio, you need the amount of money spent on advertising and the money spent on its website

Website money = £0.43

Advertising money = £1

£1 : £0.43

6 0

3 years ago

Need help Will give you the brainliest

marshall27 [118]

Answer:

The missing area for both sides is 48ft²

the missing dimension is 12ft

Step-by-step explanation:

Add all the areas up

12+36+12+36=96

192-96=96

96÷2=48

48÷4=12

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3 years ago

Ebony earned scores of 72 70, 81, 99, and 88 on five math tests. Determine her

Minchanka [31]

Let it be x

$\boxed{\sf Average=\dfrac{Sum\:of\:terms}{No\:of\:terms}}$

$\\ \sf\longmapsto \dfrac{72+70+81+99+88+x}{6}=83$

$\\ \sf\longmapsto \dfrac{410+x}{6}=83$

$\\ \sf\longmapsto 410+x=498$

$\\ \sf\longmapsto x=498-410$

$\\ \sf\longmapsto x=88$

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3 years ago