All categories

3 years ago

2# Find the missing variable (s). Round to the nearest tenth.

Mathematics

1 answer:

mel-nik [20]3 years ago

6 0

Answer:

15 cos(33°) m

Step-by-step explanation

Presumably m stands for meters.

If RS were 1, x would be cos(33°)

Multiply sides of triangle by 15 m

When calculating cos(33°) first make sure cos(90°) comes out zero, not -0.448...

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the following table gives the number of people on the titanic by class and whether or not they survived gi

ziro4ka [17]

Answer:

Where’s the rest of the question ??

Step-by-step explanation:

4 0

3 years ago

Which equation has both 4 and -4 as possible values of y?

aleksley [76]

C) Y^2=16

Because the two numbers combined to get 16 are:

4 x 4 = 16

Or

-4 x -4 = 16

4 0

3 years ago

A triangle has an angle that measures 90°. The other two angles are in a ratio of 2:7. What are the measures of those two angles

marin [14]

Answer:

70° and 20°

let the other 2 angles be 7x and 2x

90+7x+2x=180

9x=180-90

x=90/9

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2 years ago

"David left the park traveling 16 mph. Then 3 hours later, Corey left traveling the same direction at 28 mph. How long until Cor

luda_lava [24]

Answer:

The answer to your question 4 hours

Step-by-step explanation:

Data

David = 16 mph

Corey = 28 mph

first time = 3 hours

time = ?

Formula

$v = \frac{distance}{time}$

solve for distance

distance = v x time

Process

1.- Calculate the distance David travelled during 3 hours

distance = 3 x 16 = 48 m

2.- Write equations for the distance travelled by David and Corey

David = 16t + 48

Corey = 28t

3.- Equal both equations

16t + 48 = 28t

4.- Solve for t

16t - 28t = - 48

-12t = -48

t = -48/-12

5.- Result

t = 4 hours

6 0

3 years ago

Read 2 more answers

AC = 8, AB = 2x + 20, and BC = 2x + 24. Find x.

pickupchik [31]

Answer:

Answer: x is -9

Step-by-step explanation:

If it's a line AC with a point B between;

AC = AB + BC

substitute in terms of x :

$8 = (2x + 20) + (2x + 24)$

group x terms in a same bracket, and constants in their bracket

$8 = (2x + 2x) + (20 + 24)$

operate the brackets:

$8 = 4x + 44$

subtract 44 from both sides:

$8 - 44 = (4x + 44) - 44$

simplify:

$- 36 = 4x$

divide all sides by 4:

$\frac{ - 36}{4} = \frac{4x}{4} \\ \\ x = - 9$

5 0

3 years ago