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Lina20 [59]
2 years ago
13

Please help! I don't really understand this :/

Mathematics
2 answers:
Airida [17]2 years ago
6 0

Answer:

The answer would be 19

Step-by-step explanation:

You plug in the x and y values, and it looks like this

2(4)^2/8+5(3)

Simplify

2(16)/8+15

32/8+15

4+15

--->19<---

SpyIntel [72]2 years ago
3 0

The answer is 19 (See picture below for explanation)

OR:

2 x (4^{2}) ÷ 8 + (5 x 3)

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A model of a volcano has a height of 12 in. , and a diameter of 12 in. What is the approximate volume of the model? Use 3. 14 to
jenyasd209 [6]

The approximate volume of the model will be

v=452.33 inch^{2}

<h3 /><h3>What is the approximate volume of the model? </h3>

It is given that

Height of the volcano =12 inch

Diameter of the volcano= 12inch=r=6inch

So the volume of the model will be =

=\dfrac{1}{3\\} \pi \times r^{2} \times h

= \dfrac{1}{3} \pi \times (6)^{2} \times 12

v=452.33inch^{2}

Thus the approximate volume of the model will be  v=452.33 inch^{2}

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1 year ago
157.70 for 19 shirts
Jlenok [28]

Answer:

Each shirt was $8.30

Step-by-step explanation:

6 0
3 years ago
Solve the system of linear equations using elimination. <br><br> −2x − y = 3<br> −9x − y = 17
Maurinko [17]

-2×-y=3-9×-y=17

=2×+9×=1y+1y=17+3

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6 0
3 years ago
What is the exact value of cos (67.5° )?
Brilliant_brown [7]

Answer:

0.38268343

Step-by-step explanation:

cos( 67.5 )

Rewrite  

67.5

as an angle where the values of the six trigonometric functions are known divided by  2 . cos ( 135\ 2)

Apply the cosine half-angle identity.

±

√

1

+

cos

(

135

)

2

 

Change the  

±

to  

+

because cosine is positive in the first quadrant.

√

1

+

cos

(

135

)

2

Simplify  

√

1

+

cos

(

135

)

2

√

2

−

√

2

2

The result can be shown in multiple forms.

Exact Form:

√

2

−

√

2

2

Decimal Form:

0.38268343

…

6 0
3 years ago
A bowling alley charges $3 to rent shoes. Four friends each pay for one game and for renting
Aleksandr [31]

Answer:

3(4)+g=28

Step-by-step explanation:

3 is the cost of one pair of shoes and 4 is how many shoes were rented. you multiple the 3 times 4 and get 12 and to get the amount of one game you have to subtract the total amount. the equation I came up with might not be what your teacher wants but thats a start. hope it helped!

3 0
2 years ago
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