3 years ago

Solve using the quadratic formula X^2=4x-8

Mathematics

1 answer:

Sergio039 [100]3 years ago

7 0

This is the answer........

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Step-by-step explanation:

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3 years ago

There are 9 red and 6 green marbles in a bag. A child reaches in the bag and randomly takes one marble. What is the probability

snow_lady [41]

2/5
The probability is the green over the total

4 0

3 years ago

Read 2 more answers

A tree casts a shadow that is 8 feet long, a 3 foot mailbox cast a shadow that is 5 feet long. how tall is the tree?

madam [21]

Set up two fractions:
8/x and 3/5
Set them equal to each other and cross multiply to get:
8*5 = 3x
40 = 3x
13.3 = x or 13 and 1/3 feet tall.

7 0

3 years ago

Choose the quadratic equation that has a leading coefficient of 8 and solutions -10 and 7/8

Maru [420]

Answer:

$f(x)=8x^2+73x-70$

Step-by-step explanation:

We are given

zeros as -10 and 7/8

now, we can set up function as

$f(x)=a(x-(-10))(x-\frac{7}{8})$

now, we are given that

leading coefficient is 8

so, a=8

now, we can plug it

$f(x)=8(x-(-10))(x-\frac{7}{8})$

now, we can simplify it

$f(x)=8\left(x^2+\frac{73x}{8}-\frac{35}{4}\right)$

so, we get

$f(x)=8x^2+73x-70$

6 0

3 years ago

Use what you know about signed numbers to complete these square box problems

morpeh [17]

Answer:

We need to know what the boxes are, you didnt include numbers so we cant help you :) Have a great day and i hope you figure the problem out with the help with our Brainly workers! -Conner

Step-by-step explanation:

6 0

3 years ago