All categories

3 years ago

Please help me with these questions. Ill mark brainliest to whoever answers correctly!!

Mathematics

1 answer:

LUCKY_DIMON [66]3 years ago

5 0

Answer:

see below

Step-by-step explanation:

$3(i)\\\\AD=?\\\\\cos (\angle BDA)=\frac{AD}{BD}\\\\\cos (27)=\frac{AD}{3}\\\\AD=3\cos 27\\\\AD\approx 2.67$

$3(ii)\\\\\sin (\angle BCD) = \frac{BD}{CD}\\\\\sin(41)=\frac{3}{CD}\\\\CD=\frac{3}{\sin 41}\\\\CD\approx 4.57$

I'm sorry but i have to go I'll come back in half an hour and finish answering

You might be interested in

You order 1.5 pounds of turkey at a deli. You will accept the turkey if its weight is between 1.54 lb and 1.46 lb. What absolute

andrey2020 [161]

_
1.46<1.54 hope this helps

7 0

3 years ago

Book costs $5.25 plus sales tax. After sales tax, the book is $5.58. What is the sales tax rate?

Karolina [17]

5,25-5,58=0,33

The answer is $0,33

8 0

3 years ago

Read 2 more answers

A dog won a race at the local fair by running 3 and one fourth miles in exactly 2 hours. At this constant rate, how long does i

Novosadov [1.4K]

Answer:

$\frac{4}{5}$ hour

Step-by-step explanation:

Let x represent time taken by dog to run the 1 and three tenths -mile state fair race.

We have been given that a dog won a race at the local fair by running 3 and one fourth miles in exactly 2 hours.

We will use proportions to solve our given problem as:

$\text{Speed}=\frac{\text{Distance}}{\text{Time}}$

We will equate both speeds as:

$\frac{1\frac{3}{10}}{x}=\frac{3\frac{1}{4}}{2}$

$\frac{\frac{13}{10}}{x}=\frac{\frac{13}{4}}{2}$

$\frac{13}{10\cdot x}=\frac{13}{4\cdot 2}$

Cross multiply:

$13\cdot 10\cdot x=13\cdot 4\cdot 2$

$10\cdot x=4\cdot 2$

$\frac{10\cdot x}{10}=\frac{4\cdot 2}{10}$

Therefore, it will take $\frac{4}{5}$ hour to complete $1\frac{3}{10}$ mile state fair race.

7 0

3 years ago

Danny has 11 1/4 cups of chocolate syrup. He is going to make chocolate sundaes for his friends. Each sundae will have 3/4 cup o

il63 [147K]

Answer: Danny can make 15 sundaes from 11 1/4 cups of chocolate

Step-by-step explanation:

number of cups of chocolate syrup= 11 1/4 cups

For ever sundae, he decides to make, it will require 3/4 cup of chocolate

Number of sundae , Danny can make = number of cups of chocolate syrup /3/4 cup of sundae

= 11 1/4 / 3/4

45/4 x 4/3= 15 sundaes

Therefore, Danny can make 15 sundaes from 11 1/4 cups of chocolate

3 0

3 years ago

How to write 625,000 in scientific notation?

Natasha_Volkova [10]

The answer would be 6.25×10 to the power of 5

5 0

3 years ago