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DaniilM [7]
2 years ago
8

LeAnn wants to giftwrap a present she got for her little brother. How many square inches of giftwrap will be needed to cover a b

ox that is 5in x 7in x 3in?
Mathematics
1 answer:
Crazy boy [7]2 years ago
7 0
Just find the surface area. 5*7=35, but 35*2=7<span>0</span>, because the top and bottom. Then do 7*3*2=42, for 2 parallel sides, and then 3*5*2=30. Now add 70+30+42=142 square inches. There's your answer.
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A film student wants to capture a shot of a satellite dish placed at the top of a building. The line of sight between the ground
ICE Princess25 [194]

The ground, the building and the line of sight between the ground camera and the top of the building form right triangle with hypotenuse equal to 45 feet and angle adjacent to this hypotenuse and ground - 50°. The building is an opposite leg to the given angle, then you should write sine function:

\sin 50^{\circ}=\dfrac{height}{45} \\ \\ 0.766=\dfrac{height}{45}\\  \\ height=45\cdot 0.766=34.47.

The answer to the nearest tenth of a foot is 34.5 feet

6 0
3 years ago
Simplify the expression <br> 9− 3(2)2
Kazeer [188]

Answer:

-3

Step-by-step explanation:

9-3(2)2

9-(6)2

9-12

-3

3 0
3 years ago
Read 2 more answers
An accountant invested $5000 at a simple interest rate of 8% for 2 years. What total amount of money will she have from her inve
il63 [147K]

Answer:

$5800 plz give the brainliest

Step-by-step explanation:

you have to muliyiply everything so 5000*.08*2 which is 800 now add that to 5000 because thats the amount she put in so it will be $5800.

6 0
2 years ago
What is the product?
Anit [1.1K]

The final answer will be a 3x3 matrix. So you'll have 3 rows and 3 columns.

Along row one, the values are:     10,   15,    20

Along row two, the values are:      45,  -5,   -35

Along row three, the values are:   55,  25,   -15

all of which make up the final answer. Each value in bold is the result of multiplying the outer 5 by each value inside the original matrix given. In a sense, it's like using the distributive property, though we wont be adding any of the values (everything stays separated).

7 0
3 years ago
BRAINLIEST + POINTSSSS<br><br> Can someone explain me this step by step? Pleaseeeee
kondaur [170]

-25 15/19 + 9/1

get a common denominator of 19

they multiplied 9/1 * 19/19 = 171/19

-25 15/19 + 171/19 =

change the mixed number to an improper fraction

(19* 25 +15)/19 = 490/19

-490/19 + 171/19 =

add together

-319/19

now convert the improper fraction back to a mixed number

19* 16 =304  319-304=15

-319/19 =-16 15/19

3 0
2 years ago
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