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3 years ago

Which second degree polynomial function has a leading coefficient of -1 and root 4 with multiplying 2?

Mathematics

1 answer:

MArishka [77]3 years ago

7 0

What do if we get to do something for a

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Need math help with 5.6.7

Diano4ka-milaya [45]

Answer:

5) 12 times 3 equals 36: $36

6) 42 divided by 4 equals 10.2 so about 10 teams

7) 32 times 25 equals 800

idk if 7 is right or not sorry

Step-by-step explanation:

8 0

4 years ago

The area of the trapezoid

ELEN [110]

Answer:

Step-by-step explanation:

The formula of an area of a trapezoid:

$A=\dfrac{b_1+b_2}{2}\cdot h$

b₁, b₂ - bases

h - height

We have b₁ = 10in, b₂ = 5in and h = 11in. Substitute:

$A=\dfrac{10+5}{2}\cdot11=\dfrac{15}{2}\cdot11=7.5\cdot11=82.5\ in^2$

7 0

4 years ago

Read 2 more answers

Find y<br> y= |x−5| + |x+5| (if x>5)

velikii [3]

Answer:

$y=2x$ if $x>5$ .

Step-by-step explanation:

$|x-5|=x-5 \text{ if } x-5 \ge 0$ . This means when $x \ge 5$ .

$|x-5|=-(x-5) \text{ if } x-5 \le 0$ . This means when $x \le 5$ .

It doesn't matter where the 5 is included since either $x-5$ or $-(x-5)$ would product 0 at $x=5$ .

$|x+5|=x+5 \text{ if } x+5 \ge 0$ . This means when $x \ge -5$ .

$|x+5|=-(x+5) \text{ if } x+5 \le 0$ . This means when $x \le -5$ .

The same statement here about $x=-5$ as I about $x=5$ with the earlier expression.

So anyways we have $x>5$ .

This means $y=|x-5|+|x+5|$ can be rewritten as

$y=(x-5)+(x+5)=(x+x)+(-5+5)=2x+0=2x$ .

$y=2x$

6 0

3 years ago

A New York taxi service charges a $3.25 boarding rate in addition to its meter which is $2 for every mile. How much does it cost

IgorC [24]

Answer:

Hey there!

This can be modelled by an equation, y=2x+3.25

For one mile: y=2(1)+3.25, or y=5.25

For twenty miles: y=2(20)+3.25, or y=43.25

Hope this helps :)

3 0

3 years ago

Help plzzz, you could just tell me to go left or right

Lerok [7]

I ussually think of them as arrows telling me where to go.

if it is > you go ----->

if it is < you go <------

6 0

3 years ago