2 years ago

Please help i don't understand!

Mathematics

1 answer:

ladessa [460]2 years ago

7 0

Answer:(2x-5)(x+10)

Step-by-step explanation:

picture below

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What is the square of √4

Elan Coil [88]

Answer:

Step-by-step explanation:

To find the square of a number, you multiply it by itself. This means √4 * √4 gives the answer. √4 can be simplified to 2 because 2^2 is 4. So, 2 *2 gives the answer, which is 4.

7 0

3 years ago

Read 2 more answers

Simplify to create an equivalent expression.

Olin [163]

−y−3(−3y+5)
= −y + 9y - 15
= 8y - 15

answer
d.8y-15

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3 years ago

In a batch of 890 calculators, 12 were found to be defective. What is the probability that a calculator chosen at random will be

jarptica [38.1K]

890 times 12 equals 10680

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3 years ago

Moby sold half his toy car collection, and then bought 12 more cars the next day. He now has 48 toy cars. How many cars did he h

castortr0y [4]

Answer: 72 cars.

Step-by-step explanation:

Let be "x" the number of toys that Moby had to start with.

According to the information given in the exercise, Moby sold half his toy car collection. This can be represented with the following expression:

$\frac{1}{2}x$

Then he bought 12 more cars, giving a total amount of 48 toy cars.

Therefore, the equation that represents this situation is the equation shown below:

$x-\frac{1}{2}x+12=48$

Now you must solve for "x" in order to find its value.

You get that this is:

$\frac{1}{2}x+12=48\\\\\frac{1}{2}x=48-12\\\\\frac{1}{2}x=36\\\\x=(36)(2)\\\\x=72$

7 0

4 years ago

Please solve this: 6-2x=3

Westkost [7]

Answer:

-4

Step-by-step explanation:

6 - 2x = 3

-2x = 3 + 6

-2x = 8

x= $\frac{8}{-2}$

x= -4

I apologize if this isn't the right answer.

7 0

2 years ago