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3 years ago

PLS HURRY IM TIMED Which statement about a dilation with a scale factor of 3 is true?

Mathematics

1 answer:

Sedaia [141]3 years ago

8 0

Answer:

Each side in the pre-image is multiplied by three to find the corresponding side length in the image.

Step-by-step explanation:

Hope this helps!!

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Tom invested £2500 for 3 years into his savings account.

Hitman42 [59]

The frist years interest would be £75 , so after 1 year it'd be £2,575 , after 2 years the interest would be £77.25 giving a total of £2,652.25 and after the third final ear , the interest would be £79.57 , resulting in Tom having <span>£2,731.82 at the end of the 3 years</span>

3 0

3 years ago

Read 2 more answers

Plz help right answer gets BRAINEST

alex41 [277]

Answer:

B. No

Step-by-step explanation:

7 and 11 have multiple outputs, therefore, this is not a function.

7 0

3 years ago

Need help with radical expression!!! It’s asking for a set of all x where the expression is defined in interval form!

gayaneshka [121]

Answer: (0, 25) ∪ (25, ∞)

<u>Step-by-step explanation:</u>

The expression is undefined when the denominator is equal to zero and when the radicand (expression inside the radical) is less than zero.

Let's deal with the denominator first by finding the x-values that would make the denominator equal to zero (these are the values that will NOT be included in the interval notation)

x - 5√x = 0

x = 5√x <em>added 5√x to both sides</em>

x² = 25x <em>squared both sides</em>

x² - 25x = 0 <em>subtracted 25x from both sides</em>

x(x - 25) = 0 <em>factored the quadratic equation</em>

x = 0 and x - 25 = 0 <em>applied the Zero Product Property</em>

x = 0 and x = 25 <em>solved for x</em>

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So, x ≠ 0 and x ≠ 25

Next, let's deal with the radicand by setting the expressions inside the radicals to "greater than or equal to zero".

2√x and 5√x both have a radicand of x

x ≥ 0

Now, let's put it all together

x ≥ 0 and x ≠ 0 and x ≠ 25

so, x is between 0 and ∞ but not including 0 or 25.

Interval Notation: (0, 25) ∪ (25, ∞)

Reminder that interval notation uses a bracket [ ] when the value is included and a parenthesis ( ) when the value is not included. Infinity always uses a parenthesis since it is not an actual number.

6 0

3 years ago

Fiber One Bran Cereal boasts that it contains 57% of the Daily value of fiber you need. If 1 serving contains 14 grams of fiber,

Makovka662 [10]

The amount of fiber needed in a day is 7.98 grams

<h3>Proportions</h3>

Proportions are parts, in comparative relation to a whole.

In other words, proportions are fractions of a larger dataset

The given parameters from the question are given as:

Proportion of the daily value of fiber needed = 57%
Daily serving = 14 grams.

<h3>Amount of fiber</h3>

The amount of fiber needed in a day is the product of the proportion and the size of the daily serving.

So, we have:

$Amount = 57\% \times 14g$

$Amount = 7.98g$

Hence, the amount of fiber needed in a day is 7.98 grams