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olga nikolaevna [1]
3 years ago
7

Can someone please help me Factor completely 9-6a-24a^2

Mathematics
1 answer:
andreev551 [17]3 years ago
6 0
-24a^2 - 6a + 9
You don't want a negative in front of the variable that is being squared.
-1(24a^2 + 6a - 9)
-3(8a^2 + 2a - 3)
now we use the A C method. what two numbers multiply to equal A×C (8×-3) and add to be B (2)?

6 and -4

-3(8a^2 + 6a - 4a - 3) factor by grouping
-3(2a(4a + 3) -1(4a + 3))
-3(2a - 1)(4a + 3)

hope this helped C:
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A basketball player has made 21 of her last 30 free throws a percentage of 70, how can you model the player's free throw percent
marysya [2.9K]

<span>For this case what you should do is write the following function:</span>

<span> y = (a / b) * 100</span>

<span> Where,</span>

<span> A: amount of successful free throws</span>

<span> B: total amount of free throws</span>

<span> Substituting values we have:</span>

<span><span> y  = (21/30) * 100</span></span>

<span><span> The result is:</span></span>

<span><span> Y = 70% (as we expected)</span></span>

<span><span> Answer:</span></span>

<span><span> a rational function that can model the player's free throw percentage is:</span></span>

<span><span> <span>y = (21/30) * 100</span></span>
</span>

7 0
3 years ago
Hannah is making bags of. trail mix for hiking club she will use 21 ounces of walnuts 11.1 ounces of almonds and 13.4 ounces of
Alja [10]

Answer:

1.75 ounces per bag.

Step-by-step explanation:

First, we add the ounces all together and we get 45.5 ounces of trail mix. If we divide that by 26 bags, we will get 1.75 ounces per bag. I hope this helps. If someone else answers, can you give me brainliest? I really need it. Thanks!

3 0
4 years ago
Becky has already run 23 miles on her own, and she expects to run 1 mile during each
Dennis_Churaev [7]

Answer:

42

Step-by-step explanation:

Since Becky already ran 23 miles, and there is 1 mile per track practice, you add the 19 and 23 to get your answer.

5 0
3 years ago
What number should the fraction 15/3 be multiplied by in order to equal one ?
Jlenok [28]
Hello. 

The mixed number fraction 15/3 should be multiplied by the fraction 3/15 to equal the required number 1.

Feel free to ask me more questions on my profile. I am more than happy to help. Don't forget Brainliest! :)
5 0
4 years ago
Read 2 more answers
A map of a rectangular park has a length of 4 inches and a width of 6 inches. It uses a scale of 1 inch for every 30 Miles. What
andre [41]

Answer:

Step-by-step explanation:

Dimensions of the rectangular park = 4 inches by 6 inches

Since scale factor = \frac{\text{Dimensions of the park on map}}{\text{Dimensions of the original park}} = \frac{1}{30}

\frac{4}{\text{Length of the original park}}=\frac{1}{30}

Length of the original park = 120 miles

Similarly, width of the park = 180 miles

Area of the park = Length × Width

                           = 120 × 180

                           = 21600 square miles

Therefore, area of the original park is 21600 square miles.

Formula for the ratio of area of the park on map and original park is,

\frac{\text{Area of the park on map}}{\text{Area of the original park}}=(\text{Scale factor})^2

\frac{6}{21600}=(\text{Scale factor})^2

Scale factor = \sqrt{\frac{1}{3600}}

                    = \frac{1}{60}

Scale factor to reproduce the map so that it fits in the brochure will be 1 inch for every 60 miles.

5 0
4 years ago
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