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Vlada [557]
3 years ago
8

Evaluate f(x)=-2x-5 for x=3

Mathematics
1 answer:
RoseWind [281]3 years ago
8 0

Answer:

Step-by-step explanation:

hello :

f(3)=-2(3)-5 = -6-5 = -11

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Paladinen [302]

Answer:

Look at the picture down below :)))

Step-by-step explanation:

I just took the test and I got the correct answers, hope this helps!

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4. Which function has two
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Answer: B) (x - 5)(x + 4)

Step-by-step explanation:

we’re looking for x intercepts at x = 5 and x = -4

x - 5 = 0; x = 5

x + 4 = 0; x = -4

(x - 5)(x + 4) is your answer

6 0
3 years ago
One positive number is 1/5 of another number the difference of the two numbers is 72 find the numbers
SpyIntel [72]

Let x be the lowest positive number  Then  the other number = 5x.

So 5x - x = 72

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x = 18

So the numbers are 18 and 90  answer

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3 years ago
PLZ HELP! ASAP!!! I WILL GIVE BRAINLIEST
Ira Lisetskai [31]

Answer:

see explanation

Step-by-step explanation:

Using cross- products, that is

\frac{a}{b} = \frac{c}{d} then ad = bc

Given the ratios

\frac{4}{14} and \frac{6}{21}

Then equating and using cross- products

If both sides equate then the ratios are equivalent

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4 × 21 = 6 × 14 ⇒ 84 = 84

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8 0
3 years ago
Each unit on the grid stands for one miles determine two ways to calculate the distance from josie's house to annies
Novosadov [1.4K]
I encountered this problem before but it had an accompanying image and list of answer choices.

I'll attach the image and include the list of options. 

Each unit on the grid stands for one mile. Determine two ways to calculate the distance from Josie's house to Annie's house.
A) Distance Formula and Slope Formula
B) Midpoint Formula and Slope Formula
C) Distance Formula and Midpoint Formula
<span>D) Distance Formula and Pythagorean Theorem
</span>
My answer is: D.) Distance formula and Pythagorean Theorem.

When looking at the image, I can visualize a right triangle. I'll simply get the measure of the long and short legs and solve for the hypotenuse. 
Since the distance formula is derived from the Pythagorean theorem, it can be used to determine the distance from Josie's house to Annie's house.

8 0
3 years ago
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