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3 years ago

Explain how use mental math in 17+38

1 answer:

7 0

You would first look at the tens place numbers; 10 and 30. and add them together making 40. after that you'd take the ones places and add them together; 7 and 8. add those together and you'd get 15. to finish you just need to add the two numbers together 40 and 15.

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What is the y-intercept of the function f(x) = -2/9x + 1/3

Verdich [7]

Answer:

Step-by-step explanation: substitute 0 in for x for the y intercept

8 0

3 years ago

WILL GIVE BRAINLIEST!!!!!!!!!!!!!

Phantasy [73]

Writing the domain in words: negative infinity to three halves and three halves to infinity

So, Option A is correct.

Step-by-step explanation:

We need to find domain of the function: $f(x)=\frac{x-5}{2x-3}$

<u>Domain:</u>

The domain of function is defined as all the input values for which the function is defined.

In other words we can say that any value of x that makes the denominator zero is not considered as domain of function.

In the function given: $f(x)=\frac{x-5}{2x-3}$

if x= 3/2 then the denominator will be zero and the function will not be defined.

So, value of x should be x>3/2 or x<3/2

We can write domain as: (-∞,3/2)(3/2,∞)

3/2 can be written as three halves.

Writing the domain in words: negative infinity to three halves and three halves to infinity

So, Option A is correct.

Keywords: Domain of Function

Learn more about Domain of function at:

#learnwithBrainly

4 0

3 years ago

Joshua saves $325 every 5 months.How long will it take him to save $845? Explain how you determined your answer.

Klio2033 [76]

325/5 = $65 a month . 845/65= 13 months

5 0

3 years ago

I need help on 15 please

Nikolay [14]

The ratio 12:20 because you need it to be equal to 3:5. 3 times 4 which makes 12 so you need to multiply 5 with 4 too

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3 years ago

Bobby remembered he had a coupon in his pocket that will take an additional 30% off the price of the shirts calculate the new to

garik1379 [7]

Answer:

You subtract the percentage by the shirt costs. And then you'll have your answer. Then add on the sales tax.

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3 years ago