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3 years ago

I NEED HELP PLEASE!!!!

Mathematics

2 answers:

Oxana [17]3 years ago

3 0

Try to find what the cost will be for 0 attendees. That’s the base cost.

So every time you add 15 people, the cost increases by 105.
At 0 people it will be 370-105=265

tiny-mole [99]3 years ago

3 0

Answer:

D. $265

Step-by-step explanation:

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Would appreciate help with an explanation

frosja888 [35]

The Answer Is AB=20.25

27/16=x/12

x=20.25

4 0

3 years ago

Use the Intermediate Value Theorem to show that the polynomial f(x)=x^3+x^2-2x+5 has a real zero between -3 and -1.

Triss [41]

You need to note first two things.

1. The function f(x) need to be a continuous function on [-3,-1] (indeed f(x) is a polynomial function, is continuous on every real number x)

2. Take the closed interval [-3,-1]

Now, evaluate f(-3) and f(-1).

$f(-3) = (-3)^3 + (-3)^2 -2(-3) + 5 = -27 + 9 +6 + 5 = -7 < 0\\f(-1) = (-1)^3 + (-1)^2 -2 (-1) + 5 = -1 + 1 +2 + 5 = 7 >0$

So, we have f(-3) < 0 and f(-1). So, $f(-3) < 0 < f(-1)$ , then by the Intermediate Value Theorem, there exist $c \in (-3,-1)$ such that $f(c) = 0$ .

6 0

3 years ago

Which figures are polygons?

Lyrx [107]

It would be figure b, figure c and figure D

3 0

2 years ago

What is the missing length? 10.2 cm a area=51 cm2

AleksAgata [21]

Answer:

a = 10 cm

Step-by-step explanation:

Area of triangle, A = 51 cm²

base, b = 10.2 cm

Let height of triangle be a cm

Formula:-

$A=\dfrac{1}{2}\times a\times b$

$51=\dfrac{1}{2}\times a\times 10.2$

$a=\dfrac{51\times 2}{10.2}$

$a=10$

hence, the missing length is 10 cm

4 0

3 years ago

X-1/7>1/8 Solve using the addition principle.

amid [387]

$x- \frac{1}{7} \ \textgreater \ \frac{1}{8} \\ x\ \textgreater \ \frac{1}{8}+ \frac{1}{7} \\ x\ \textgreater \ \frac{7+8}{56} \\ x\ \textgreater \ \frac{15}{56}$

6 0

3 years ago