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ohaa [14]
3 years ago
13

−3x−8y=−8 y=2−x ​ Is (0,1) a solution of the system?

Mathematics
1 answer:
zhenek [66]3 years ago
4 0
No because (0,1) isn't a solution for both equations. It is for the first one, but not the second.


please vote my answer brainliest. thanks!
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19. Find the current in a circuit if the power is 500 W (watts) and the resistance is 25 ohms. Round off your answer to two deci
HACTEHA [7]

Answer:

A

Step-by-step explanation:

The formula that relates current, power and resistance is

I=\sqrt{\frac{P}{R}}

Where

I is the current (in amperes)

P is the power (in watts)

R is the resistance (in ohms)

We know P = 500 and R = 25, we plug them into the formula and solve for I:

I=\sqrt{\frac{P}{R}}\\I=\sqrt{\frac{500}{25}}\\I=\sqrt{20}\\ I=4.47

Correct answer is 4.47 Amperes, or choice A.

4 0
3 years ago
How to show my work for2+[4+(5x6)]
Setler [38]

Step-by-step explanation:

2+[4+(5*6)]

2+[4+30]

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7 0
2 years ago
A contractor is in charge of hiring people for a construction project. The number of days it would take to complete the project
sweet-ann [11.9K]

Answer:

\text{Domain of x}=[1,\infty), x \in Z^+

Step-by-step explanation:

Given the function: f(x)=\dfrac{280}{x},$ where:

f(x) =number of days it would take to complete the project

x =number of full-time workers.

\text{When x=0, }f(x)=\dfrac{280}{0}=$Undetermined\\\text{When x=1, }f(x)=\dfrac{280}{1}=$280 days\\\text{When x=280, }f(x)=\dfrac{280}{280}=$1 day\\\text{When x=560, }f(x)=\dfrac{280}{560}=$0.5 days

The domain of a function is the complete set of possible values of the independent variable.

In this case, the independent variable is x, the number of full-time workers. We have shown that x cannot be zero as there must be at least a worker on ground.

Therefore, an appropriate domain of the function f(x) is the set of positive integers (from 1 to infinity).

\text{Domain of x}=[1,\infty), x \in Z^+

7 0
3 years ago
Pls help me and i mark u as brainlist
raketka [301]

Answer:

the fourth one, H

6 0
3 years ago
Please Help!!!!!!! I need it!
sergiy2304 [10]

Answer:

Rotation - Twists the shape

Reflection - Flips the shape

Translation - Slides a shape

Dilation - Enlarge or reduces a shape

Congruent - Same shape same size

Rigid Motion - type of transformation that  creates congruent figures

Hope this helped. I apologize if any of them are wrong..

5 0
3 years ago
Read 2 more answers
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