2 years ago

What is -2+9 ? Help asap.

Mathematics

1 answer:

lions [1.4K]2 years ago

7 0

-2+9 its equal to 7 ww

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Please help me P.S ill give brainiest to correct answer

serious [3.7K]

Answer:

Statistical question involves numbers

Step-by-step explanation:

5 0

2 years ago

Without graphing classify each system as independent dependent or inconsistent -x -y=7 5x-5y=5

jek_recluse [69]

Answer:

Is a consistent independent system

Step-by-step explanation:

we have

$-x-y=7$ -----> isolate the variable y

$y=-x-7$ ----> equation A

$5x-5y=5$ -----> isolate the variable y

$y=x-5$ ---> equation B

Compare equation A and equation B

We can affirm that

The slopes are not equal ( so the lines are not parallel)

The lines are different

The product of their slopes is equal to -1 (the lines are perpendicular)

The system of equations has only one solution

therefore

Is a consistent independent system

5 0

2 years ago

Solve for t in scientific formula d=rt

yarga [219]

The problem is: d=rt
you are solving for r

d=rt
-- --
t t

you divide both sides by r, so your answer is:

d/t=r or r=d/t

I hope this helped! :))

3 0

3 years ago

A model of a famous statue is 2 1/2 inches tall. The actual statue is 3 1/3 feet tall. What is the ratio of the height of the mo

Gekata [30.6K]

1. A model of a famous statue is $2\dfrac{1}{2}$ inches tall that is

$\dfrac{2\cdot 2+1}{2}=\dfrac{5}{2}$ in.

2. The actual statue is $3\dfrac{1}{3}$ feet tall that is

$\dfrac{3\cdot 3+1}{3}=\dfrac{10}{3}\ ft=\dfrac{10}{3}\cdot 12=40\ in.$

3. The ratio of the height of the model to the height of the actual statue in simplest form is

$\dfrac{\dfrac{5}{2}}{40}=\dfrac{5}{2}\cdot \dfrac{1}{40}=\dfrac{1}{16}.$

Answer: $\dfrac{1}{16}.$

4 0

2 years ago

What is the value of x in the equation 1.5(x + 4) – 3 = 4.5(x – 2)? 3 4 5 9

wolverine [178]

The correct answer is 4

1.5 (4+4) -3 = 9

4.5 ( 4-2) =9

4 0

2 years ago

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