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2 years ago

Please help. ASAP. This is so confusing.

Mathematics

1 answer:

Anni [7]2 years ago

3 0

1. right triangle?

-> c²= g²+b²

c²= 20²+21²

c²= 841

c=V841

c=29

-> triangle BCG is right

cos B= 20/29

tan B= 21/20

sin B= 21/29

sin G= 20/29

cos G= 21/29

tan G= 20/21

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NEED ANSWER ASAP

kkurt [141]

Answer:

$f(2) = 81$

$g(2) = 83$

Science class had a higher average

Step-by-step explanation:

Given

$f(x) = 0.5x + 80$

g(x) table

Solving (a): f(2)

We have:

$f(x) = 0.5x + 80$

So:

$f(2) = 0.5*2 + 80$

$f(2) = 1 + 80$

$f(2) = 81$

Solving (b): g(2)

From the given table.

$g(2) = 83$

Solving (c): f(4) or g(4); which is greater

$f(x) = 0.5x + 80$

So:

$f(4) = 0.5*4+80$

$f(4) = 2+80$

$f(4) = 82$

For g(4): Notice that in the table of g(x); g(x) increases by 2 when x increases by 1

This means that:

$g(x) = g(x-1)+2$

$g(4) = g(4-1)+2:$

$g(4) = g(3)+2$

$g(4) = 85+2$

$g(4) = 87$

Hence, g(4) i.e. Science class is greater

6 0

3 years ago

Can someone please help!

11Alexandr11 [23.1K]

Answer:

(x, y ) → (- y, - x )

Step-by-step explanation:

Consider the coordinates of corresponding vertices of the 2 triangles, that is

A(1, 7 ) → D(- 7, - 1 )

Note the coordinates of D are the negative reversals of A

Thus (x, y ) → (- y, - x )

8 0

3 years ago

9. Round 45.2374 to the nearest tenth.

Alexxx [7]

Answer:

45.2

Step-by-step explanation:

the tenths is the first number to the right after the decimal

7 0

3 years ago

Help ASP! What is the unknown exponent to the 10? 50 X 8,000 = 4 x 10

baherus [9]

4*10^5 where 5 is the unknown exponent

7 0

3 years ago

Read 2 more answers

If a rectangular region has perimeter p inches and area a square inches, is the region square?

Flura [38]

If this is all the information you have, it is not enough to conclude the region is square. we need more information

8 0

3 years ago