2 years ago

HELP PLEASE!!!!!!!!!!!!!!!

Mathematics

1 answer:

meriva2 years ago

5 0

Answer:

Step-by-step explanation:

I'm not really sure but I hope its right.

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What’s this question

shusha [124]

Multiply the first equation by -1

-3x-y=-4

2x+y=5

Add them up

-x=1

So x=-1

And y=7

So the first option is correct

8 0

3 years ago

Evaluate the expression |x-10| when x= -8<br><br> a. -8<br> b. -18<br> c. 8<br> d. -18

nordsb [41]

|x-10| when x = -8
| - 8 - 10 | = |-18| = 18 <==

4 0

3 years ago

Write the inequality for the graphs

Irina18 [472]

A. -3 < x < 1
b. x < = 4 or x > = 6

4 0

3 years ago

Rosey purchased 364 flowers to make centerpieces for a party. There are 13 tables. Each table will have 4 vases with the same nu

Olin [163]

7. honestly not 100% sure. i did 364 divided by 13 which was 28 so 28 flowers per table. and then 28 divided by 4. 7 flowers per vase.

8 0

2 years ago

Use vieta's theorem to solve the problems.

Mnenie [13.5K]

Using Vieta's Theorem, it is found that c = 72.

<h3>What is the Vieta Theorem?</h3>

Suppose we have a quadratic equation, in the following format:

$y = ax^2 + bx + c$

The roots are p and q.

The Theorem states that:

$p + q = -\frac{b}{a}$

$pq = \frac{c}{a}$

In this problem, the polynomial is:

$x^2 - 17x + c$

Hence the coefficients are $a = 1, b = -17$ .

Since the difference of the solutions is 1, we have that:

$p - q = 1$

$p = 1 + q$

Then, from the first equation of the Theorem:

$p + q = -\frac{b}{a}$

$1 + q + q = 17$

$2q = 16$

$q = 8$

$p = 1 + q = 9$

Now, from the second equation:

$pq = \frac{c}{a}$

$72 = c$

$c = 72$

To learn more about Vieta's Theorem, you can take a look at brainly.com/question/23509978

6 0

2 years ago