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2 years ago

What does a positive times a negative equal

Mathematics

1 answer:

sdas [7]2 years ago

3 0

A negative number times a positive number equals a negative number. Hope this helps. Good luck!! :)

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X + 5 < –4 Solve for x. Answer must be simplified.

Monica [59]

Answer:

x < -9

Step-by-step explanation:

Hi there,

To isolate the variable x, you do the same steps like solving a regular equation.

x + 5 < -4 ← subtract 5 from both sides to make x by itself

x < -9 ← final answer (already in simplest form)

Hope this explanation helps. Cheers.

3 0

3 years ago

Read 2 more answers

Anyone please???????

leva [86]

Answer:

$\boxed{\sf B)\: x=\sqrt{17}}$

Step-by-step explanation:

Use the Pythagorean Theorem

The equation for the Pythagorean Theorem is $\tt a^2+b^2=c^2$

* a and b are the lengths of the legs, and c is the hypotenuse.*

(To know which side is the hypotenuse look at longest side which is across the right angle).

a= x, b=8, c=9

$\sf a^2+b^2=c^2$

Let's Plug in the side lengths:

$\sf x^2+8^2=9^2$

Evaluate 8^2 and 9^2:

$\sf x^2+64=81$

Subtract 64 from both sides:

$\sf x^2+64-64=81-64$

$\sf x^2=17$

Take the square root of both sides:

$\sf x=\sqrt{17}$

___________________________

5 0

2 years ago

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I need help with this because i dont know this please send help....

Sergio039 [100]

Answer:

Think about what number you got multiply 7 to get 28. Once you do, multiply the other numbers by that digit

Step-by-step explanation:

4 0

3 years ago

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Kayla is pricing whole wheat flour.

lianna [129]

A 2 pound pag at food saver sells flour for the lowest because if you buy the same amount of flour for each one easiest way would be 70 pounds and if you compare all four you will notice a 2 pound bag is the lowest unit price
5-90.3
2-87.5
7-94.5
10-90.23

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3 years ago

The following function represents the value of a car, in dollars, after x years:

Assoli18 [71]

Answer:

Option D.The decrease in the value of the car, which is 8%

Step-by-step explanation:

we have a exponential function of the form

$f(x)=a(b)^{x}$

where

y is the value of the car

x is the time in years

a is the initial value

b is the base

r is the rate of decrease

b=1+r

In this problem we have

a=$24,000 initial value of the car

b=0.92

0.92=1+r

r=0.92-1=-0.08=-8%-----> is negative because is a rate of decrease

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2 years ago

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