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3 years ago

X +81=75 Hi hello bonjour hi

Mathematics

2 answers:

dedylja [7]3 years ago

5 0

Answer:

x= -6

Step-by-step explanation:

Paha777 [63]3 years ago

4 0

Answer:

x = -6

Step-by-step explanation:

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What numbers lie between 42 square root

salantis [7]

Answer:

√ 42 lies between 6 and 7

Step-by-step explanation:

We know that √ 42 will lie between √ 36 and √ 49

And √ 36 = 6 ; √ 49 = 7

Hence we can be sure that √ 42 lies between 6 and 7

3 0

3 years ago

H Н

levacccp [35]

A and b are not true because

7 0

3 years ago

Each base in this right prism-like figure is a quarter of a circle with a radius of 2m.

NISA [10]

Answer:

$volume = 10\pi m^3$

Step-by-step explanation:

Volume of a prism = Base Area x height

Base is a quarter of a circle.

$Area \ of \ circle = \pi r^2\\\\r = 2m\\\\Area \ of \ quarter \ of \ a \ circle = \frac{1}{4} \pi r^2 = \frac{1}{4}\pi \times 4 = \pi m^2$

Base Area = π square meters.

Therefore ,

$Volume = Base Area \times height = \pi \times 10 = 10\pi m^3$

7 0

3 years ago

Jim sells used drones for 70% of the original manufacturer's purchase price of a new drone. Jim also sells new drones for 15% mo

adell [148]

The function for the amount saved if they purchase a used drone rather than a new drone from Jim's store is f(x) = 0.45x

He sells used drones at 70% of the price (x).

So, the selling price of a used drone is:

$\mathbf{Used = 70\% \times x}$

Express percentage as decimal

$\mathbf{Used = 0.7 \times x}$

$\mathbf{Used = 0.7x}$

Also, he sells new drones at 15% more of the price (x).

So, the selling price of a new drone is:

$\mathbf{New= (1 + 15\%) \times x}$

Express percentage as decimal

$\mathbf{New= (1 + 0.15) \times x}$

$\mathbf{New= 1.15 \times x}$

$\mathbf{New= 1.15x}$

The amount saved is the difference between the prices of the drones.

So, we have:

$\mathbf{Saved =New - Old}$

This gives

$\mathbf{Saved =1.15x- 0.7x}$

Subtract

$\mathbf{Saved =0.45x}$

Express as a function

$\mathbf{f(x) = 0.45x}$

Hence, the function for the amount saved is f(x) = 0.45x