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Setler [38]
3 years ago
5

Simplafy the equation 7x-3+4x+5

Mathematics
1 answer:
Allisa [31]3 years ago
7 0

Answer: 11x + 2

Step-by-step explanation:

Simplify: 7x - 3 + 4x + 5

Add 7x and 4x.

11x − 3 + 5

Add −3 and 5.

11 x + 2

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A jewelry case has a base area of 37.5 sq cm and a height of 1.5 cm ..what is the volume of 6 of these cases
Nina [5.8K]

Answer:

As Per Provided Information

A jewellry case has a base area of 37.5 sq cm and a height of 1.5 cm .

Total Number of these cases are 6 .

We have been asked to determine the volume of these cases .

\bf\: Volume_{(Jewellery  \: Cases)} = Base \: Area \:  \times height \times Total \: number \: of \: Jewellery \:Cases

Let's substitute the given value and we obtain

\sf\longrightarrow\:Volume_{(Jewellery  \: Cases)} = 37.5 \times 1.5 \times 6 \\  \\  \\ \sf\longrightarrow\:Volume_{(Jewellery  \: Cases)} = \: 56.25 \times 6 \\  \\  \\ \sf\longrightarrow\:Volume_{(Jewellery  \: Cases)} = \: 337.5 \:  {cm}^{3}

<u>Therefore</u><u>,</u>

  • <u>Volume</u><u> of</u><u> </u><u>6</u><u> </u><u>jewellery</u><u> </u><u>cases</u><u> </u><u>are </u><u>3</u><u>3</u><u>7</u><u>.</u><u>5</u><u> </u><u>cm</u><u>³</u>
4 0
2 years ago
Read 2 more answers
Whats the diffenition of constant
REY [17]

Answer:

definition of constant

Step-by-step explanation:

the definition of constant is occurring countinuosly over a period of time

4 0
3 years ago
Please Help!! With 4,5,6,9,and3.
timama [110]

Answer:

4) 95*.6=57

5) 60-18=42    42/60=70%

6) 26800-5500=21300     21300*.15=3195$

9)9200*.07=644     644+800=1444

3) 36*.75=27ft


6 0
3 years ago
The graphs of the function f (given in blue) and g (given in red) are plotted above. Suppose that u(x)=f(x)g(x) and v(x)=f(x)/g(
Rus_ich [418]
U(x) = f(x).(gx)
v(x) = f(x) /  g(x)

Use chain rule to find u(x) and v(x).

u '(x) = f '(x) g(x) + f(x) g'(x)

v ' (x) = [f '(x) g(x) - f(x) g(x)] / [g(x)]^2

The functions given are piecewise.

You need to use the pieces that include the point x = 1.

You can calculate f '(x) and g '(x) at x =1, as the slopes of the lines that define each function.

And the slopes can be calculated graphycally as run / rise of each graph, around the given point.

f '(x) = slope of f (x); at x = 1, f '(1) = run / rise = 1/1 = 1

g '(x) = slope of g(x); at x = 1, g '(1) = run / rise = 1.5/ 1 = 1.5

You also need f (1) = 1 and g(1) = 2

Then:

u '(1) =  f '(1) g(1) + f(1) g'(1) = 1*2 + 1*1.5 = 2 + 1.5 = 3.5

v ' (x) = [f '(1) g(1) - f(1) g(1)] / [g(1)]^2 = [1*2 -  1*1.5] / (2)^2 = [2-1.5]/4 =

= 0.5/4 = 0.125

Answers:
u '(1) = 3.5
v '(1) = 0.125

 


 

3 0
3 years ago
This is gonna be the death of me
kykrilka [37]
Hey!
So you have a net of the figure. It's broken into several 2D shapes. What you an do it find the area of each shape and add it together.
Triangles: 
A = (b*h)/2
A= (5 * 3) / 2
A = 15/2
same thing for the second one
15/2 * 2 = 15
Don't forget, there are 2 triangles so it's really 15 for both

Rectangles:
A=b*h
A= 7*5
A=35

A=7*5
A=35

A=3*7
A=21

35+35+21=91

Now add the sum of the area of the triangles and the sum of the area of the rectangles

91+15 = 106

106 is the surface area
Hope this helps!
5 0
3 years ago
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