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3 years ago

Which is the best estimate of the sum of

Mathematics

2 answers:

ipn [44]3 years ago

6 0

Answer:

c !!

Step-by-step explanation:

Mazyrski [523]3 years ago

4 0

Answer:

the fist one is wrong its c

Step-by-step explanation:

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Towers A and B are located 10 miles apart. A ranger spots a fire at a 42-degree angle from tower A. Another fire ranger spots th

steposvetlana [31]

Answer:

7.0 mi

Step-by-step explanation:

see the attached figure to better understand the problem

step 1

Find the measure of angle C

Remember that the sum of the interior angles in any triangle must be equal to 180 degrees

$A+B+C=180^o$

substitute the given values

$42^o+64^o+C=180^o$

$C=180^o-106^o=74^o$

step 2

Find the measure of a

Applying the law of sines

$\frac{c}{sin(C)}=\frac{a}{sin(A)}$

substitute the given values

$\frac{10}{sin(74^o)}=\frac{a}{sin(42^o)}$

solve for a

$a=\frac{10}{sin(74^o)}sin(42^o)$

$a=7.0\ mi$

6 0

4 years ago

Read 2 more answers

6ft. to 8yd. simplest form

padilas [110]

We know that 1 ft= 1/3 yd.

6 ft/ 8 yd
= 6* (1 ft)/ 8 yd
= 6* (1/3 yd)/ 8 yd
= 2 yd/ 8 yd
= 1/4

The final answer is 1/4~

3 0

4 years ago

On a scale drawing, the height of a tree is 2.25 inches. If the scale drawing is 1 in. : 75ft, how tall is the tree?

kykrilka [37]

Answer:

168.75ft

Step-by-step explanation:

We can just multiply by the scale

2.25*75=168.75

7 0

4 years ago

Loraine is procrastinating on her chemistry homework. She's never really enjoyed chemistry and finds the subject dull, even thou

allsm [11]

the cause of the procastination maybe because she can actually do it herself .it never mentioned that it was hard for her.maybe she get excited about the subject she have to work for hard

7 0

3 years ago

A parabola opens upward. The parabola goes through the point (3, -1), and the vertex is at (2, -2). What are the values of h and

Korolek [52]

The value of a is 1/4 and the value of h and k is (2,-7/4)

<h3>What is a Parabola ?</h3>

A parabola is a u shaped curve. It is a plane curve whose all points are at a fixed distance form a point called focus.

(x-h)² = 4a(y-k)

It is given that the parabola goes through the point (3, -1), and the vertex is at (2, -2).

Therefore
(x -2)² = 4a(y +2)

The parabola passes through the point (3,-1)

(3-2)² = 4*a(-1+2)

1 = 4 a

a = 1/4

Now to determine the value of focus point , (h,k)

(h = 2)

k = - 2 +1/4 = -7/4

Therefore The value of a is 1/4 and the value of h and k is (2,-7/4)

To know more about Parabola

brainly.com/question/4074088

#SPJ1

7 0

2 years ago