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yaroslaw [1]
3 years ago
13

Please Help!!!!! With These Five Questions!

Mathematics
1 answer:
hjlf3 years ago
3 0
1.  C  
2.  C
3.  B
4.  B
5.  D
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What is the measure of angle y in this figure?<br><br> Enter your answer in the box.<br><br> y=__°
Inga [223]

Answer:

sum of angles at a point is equal to 360

so, 360= 163+ x°+ y°+z°

y°=360-163 -x° - z°

y°=197- x° -z°

7 0
3 years ago
Simplify this expression: 3(x + 4.5) + 2(2.6x – 3)
lukranit [14]

Answer: 8.2x+7.5

Step-by-step explanation:

7 0
3 years ago
A plane at an altitude of 7000 ft is flying in the direction of an island . If an angle of depression is 21 ° from the plane to
Nonamiya [84]

The horizontal distance until the plan flies over the island is 2687.05 feet approximately.

<u>Solution:</u>

Given that, A plane at an altitude of 7000 ft is flying in the direction of an island

An angle of depression is 21 degree from the plane to the island

We have to find what is the horizontal distance until the plan flies over the island  

The diagram is attached below

Assume as shown in the diagram , now we can use the right angle triangle property

\tan (21)=\frac{\text {distance between plane and point above island}}{\text {height of plane}}

\tan (21)=\frac{\text {distance between plane and point above island}}{7000}

\text { Distance between plane and point above island }=7000 \times \tan (21)

=7000 \times 0.38386=2687.0482

Hence, the distance between plane and point above island is 2687.05 feet approximately.

3 0
3 years ago
Which of the following expressions represents the least common multiple of 15, 18, and 25?
Virty [35]

Answer:

(2)(3^2)(5^2)

Step-by-step explanation:

we know that

The <u>Least Common Multiple</u> (LCM) of a group of numbers is the smallest number that is a multiple of all the numbers.

we have

15,18 and 25

Decompose the numbers in prime factors

15=(3)(5)

18=(2)(3^2)

25=(5^2)

Multiply common and uncommon numbers with their greatest exponent

so

The LCM is equal to

LCM=(2)(3^2)(5^2)

LCM=450

7 0
3 years ago
3) Sandy wants to make cookies. To make cookies, she needs 15 cups of flour per
vekshin1

Answer:

She can make 1.6 batches

Step-by-step explanation:

24/15 = 1.6

6 0
3 years ago
Read 2 more answers
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