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3 years ago

Really need help on these. I have no idea what to do

Mathematics

2 answers:

kirill [66]3 years ago

8 0

Answer:

120

Step-by-step explanation:

With all the parallel lines involved, the central figure is a parallelogram. These 4 sided figures have the odd property of having their opposite angles equal.

What that means, in plain English is that <NRL = <NML

Both of these angles = 120

Here's the cruncher. <NRL and <PRK are vertically opposite. They are therefore equal.

The answer to your question is 120 which is A

PIT_PIT [208]3 years ago

8 0

the answer is A good luck !

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Although a football field appears to be flat, some are actually shaped like a parabola so that rain runs off to both sides. The

iVinArrow [24]

Answer:

The ends of the field are at the zeros (x-intercept) of the function.

0 = -0.000234(x - 80)2 + 1.5 subtract 1.5 from both sides

-1.5 = -0.000234(x - 80)2 divide both sides by right coefficient

6410.25641 = (x - 80)2 take square root of both sides

80.064 = x - 80 add 8-0 to both sides

160.064 = x

The field is 160.064 feet wide.

The maximum is at the vertex, y = 1.5 feet

Step-by-step explanation:

7 0

3 years ago

Determine whether or not this is a function<br> ANSWER ASAP

Anni [7]

Yes it is a function because x cant repeat if it’s a function. (x,y)

4 0

3 years ago

What is the surface area of the regular pyramid given below?

yuradex [85]

For this case we have by definition, that the total surface area of a regular pyramid with a square base is given by:

$SA = \frac {1} {2} p * S + A_ {b}$

Where:

p: It is the perimeter of the base

S: It's the inclination

$A_ {b}:$ It is the area of the base

Substituting:

$A_ {b} = 7 ^ 2 = 49units ^ 2\\p = 7 + 7 + 7 + 7 = 28units\\S = 10units\\SA = \frac {1} {2} 28 * 10 + 49\\SA = 140 + 49\\SA = 189 \ units ^ 2$

ANswer:

Option B

3 0

4 years ago

A family has three children. Using b to stand for a boy and g for girl give the following.(To indicate that the first child is a

zubka84 [21]

Answer:

3/8 and 3/5

Step-by-step explanation:

Given that a family has three children. Using b to stand for a boy and g for girl give the following we can write sample space for a family having three children as

(bbb, bbg, bgg, bgb, gbb, gbg, ggb, ggg)

E - exactly two boys

Sample space count = 8

Exactly two boys count = 3

a) p(E) = $\frac{3}{8}$