All categories

3 years ago

Question 2

Mathematics

2 answers:

Liono4ka [1.6K]3 years ago

7 0

Answer:

It's the first one I took the test

Step-by-step explanation:

yanalaym [24]3 years ago

6 0

So first one correct....go for it !!!

You might be interested in

Can anyone do 4,5 and 6 for me plz

cricket20 [7]

For question 4, $sinA =\frac{a}{c}, cosA= \frac{b}{c}, tan B = \frac{b}{a}, sin J = \frac{j}{l}, cosK = \frac{j}{l}, tanK = \frac{k}{j}.$

Question 5. Option a and question 6. Option j

Step-by-step explanation:

Step 1:

The three basic formula needed to solve these questions are:

$sin\theta = \frac{oppositeside}{hypotenuse} , cos\theta = \frac{adjacentside}{hypotenuse}, tan\theta= \frac{opposite side}{adjacent side}.$

Step 2:

Using the above formula, we solve the following values

$sinA = \frac{oppositeside}{hypotenuse}$ $=\frac{a}{c}.$

$cosA = \frac{adjacentside}{hypotenuse}$ $= \frac{b}{c}.$

$tanB= \frac{opposite side}{adjacent side}$ $= \frac{b}{a}.$

$sinJ = \frac{oppositeside}{hypotenuse}$ $= \frac{j}{l}.$

$cosK = \frac{adjacentside}{hypotenuse}$ $= \frac{j}{l}.$

$tanK= \frac{opposite side}{adjacent side}$ $= \frac{k}{j}.$

Step 3:

For question 5, The triangle's angle = 23°, opposite side = BC inches and hypotenuse = 4 inches.

$sin\theta= \frac{opposite side}{hypotenuse}. sin 23^{\circ}= \frac{BC}{4}, sin23^{\circ} = 0.3907,BC = (0.3907)(4) = 1.5628.$

SO BC is 1.5628 inches, rounding this off to the nearest tenth, we get BC = 1.6 inches which is option a.

Step 4:

For question 6, The triangle's angle = 50°, opposite side = QR m the adjacent side = 8.1 m.

$tan\theta= \frac{opposite side}{adjacentside}. tan 50^{\circ}=\frac{QR}{8.1}, tan50^{\circ} = 1.1917,QR = (1.1917)(8.1) = 9.65277$

SO QR is 9.65277 meters, rounding this off to the nearest tenth, we get QR = 9.7 inches which is option j.

7 0

3 years ago

Jose is surveying shoppers about their use of the new pharmacy in a grocery store. Which of the following questions in his surve

pantera1 [17]

D.

This is because it is a question that involves doing actual math rather than just asking and getting an answer.

7 0

4 years ago

Read 2 more answers

Ann puts 37 photos in one book and 24 photos in another book. how many photos does she use in all?

Flura [38]

Answer:
37 + 24 = 61
61 photos

6 0

3 years ago

Read 2 more answers

HELP 25pts and will mark brainliest. I NEED THIS NOW!! Which expression shows the result of applying the distributive property t

Arte-miy333 [17]

The last bottom problem

6 0

4 years ago

A frog sitting on a stump 4 feet high hops off and lands on the ground. During her leap, the frog's height h in feet is given by

choli [55]

Answer:

it is c

Step-by-step explanation:

7 0

3 years ago