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4 years ago

-5 = u + 6 solve this equation shown here.

Mathematics

1 answer:

Pavel [41]4 years ago

3 0

Step-by-step explanation:

-5=u+6

-5-6=u

-11=u

therefore , u= -11

hope that helps

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Olivia is making model cars to go on shelves in her room. The number of wheels she uses is a function of how many cars she makes

Luba_88 [7]

Answer:

Domain = 1 to 7

Range = 4 to 28

Step-by-step explanation:

Given that:

Number of wheels used is a function of number of cars manufactured.

Number of wheels present = 28

1 car uses 4 wheels

2 cars use 8 wheels.

3 car uses 12 wheels

and so on.

Let the function be of the form:

$y =f(x)$

Domain of the function is the value of $x$ that can be given as valid input to the function.

Range of the function is the value of $y$ that can be output of the function.

Let $x$ be the number of cars manufactured.

Then value of $y$ is nothing but $x$ times 4.

$y=4x$

We are given that maximum value of $y$ can be 28.

$28 = 4x\\\Rightarrow x =7$

Therefore, maximum value of input can be 7.

Minimum number of wheels can be 4 to make a minimum of 1 car.

Therefore domain is 4 to 28 and range is 1 to 7.

3 0

3 years ago

What is y = (x+1) (x-3) in standard form?

andre [41]

Y=<span>x2</span>−2x−<span>3
is the answer </span>

5 0

3 years ago

The current l, in a circuit varies inversely with the resistance, R. If the resistance is 12 when the current is 3, what is the

ivolga24 [154]

Answer:

Step-by-step explanation:

Given I varies inversely with R then the equation relating them is

I = $\frac{k}{R}$ ← k is the constant of variation

To find k use the condition R = 12 when I = 3

k = IR = 3 × 12 = 36

I = $\frac{36}{R}$ ← equation of variation

When I = 6, then

6 = $\frac{36}{R}$ , hence

R = $\frac{36}{6}$ = 6

4 0

3 years ago

The lengths of the sides of an equilateral triangle are 3(x + )cm, (5x +2y-1) cm and 5x +1 Cm Find the side length of the triang

pochemuha

Answer:

Correct option is A

Since it is an equilateral triangle, the lengths of the sides are equal

So, x+3 y=3 x+2 y−2=4 x+

y+1

x+3 y=3 x+2 y−2

y=2 x−2

2 x−y=2 ...(1)

Also, 4 x+

y+1=x+3 y

8 x+y+2=2 x+6 y

6 x+2=5 y

6 x−5 y=−2 ...(2)

Multiplying e q(1) by 5 we get,

10 x−5 y=10 ...(3)

Subtracting e q(2) from e q(3) we get,

4 x=12⇒x=3

y=2 x−2=4

The length of one side of equilateral triangle = x+3 y =3+3(4)=15 units

5 0

3 years ago

Which of the following would result in the same value as -40 divided by 2? select all that apply

Vinvika [58]

Answer:

C D F

Step-by-step explanation:

Taking -40/2, we know our answer must be -20.

Testing each answer choice proves this.

A= 40*1/2, which is equal to 40/2, which is 20.

B= -40*-1/2, again, equaling 20.

C= 40/-2. Since one of our terms is negative, this one is -20.

D= 40*-1/2, again, -20.

E= -1/40*2. This would equal -2/40, using fraction multiplication.

F= -40*1/2, Which is the exact same thing the original question asks.

Thus, our final answer is C, D, and F.

5 0

3 years ago