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Marat540 [252]
3 years ago
14

Fimd f(-3) for f(x)= 5x^2+3x-8

Mathematics
1 answer:
pashok25 [27]3 years ago
7 0

Answer:

Step-by-step explanation:

5•9-9-8=28

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Marcus looked up the path that he had taken on his run this morning on the map shown below.
AURORKA [14]

Answer: 6 miles.


Step-by-step explanation:

1. To solve this problem you only need to add the distances shown in the map attached, which shown the path Marcus had taken. Then, you have:

Total_{distance}=1in+3inches+2inches+2.3inches\\Total_{distance}=8.3inches

2. Now, you must convert the result obtained from inches to miles. According to the problem 4inches=3miles, therefore, you have:

Total_{distance}=\frac{8,3inches*3miles}{4inches}\\Total_{distance}=6.22miles

3. To the nearest mile:

Total_{distance}=6miles


6 0
4 years ago
Read 2 more answers
9) The present ages of Juna and Jubin are in the ratio 5:8. After 4 years the sum
vodka [1.7K]

Answer:

Present age of Juna = 10 years

Present age of Jubin = 16 years

Step-by-step explanation:

Ratio of present ages = 5: 8

Let the present ages of:

Juna be 5x years and Jubin be 8x years

(where x is the common multiplier of the given ratios)

Four years after:

Juna's age = (5x + 4) years

Jubin's age = (8x + 4) years

According to the question:

(5x + 4) + (8x + 4) = 34

13x + 8 = 34

13x = 34 - 8

13x = 26

x = 26/13

x = 2

5x = 5*2 = 10 years

8x = 8*2 = 16 years

Hence,

Present age of Juna = 10 years

Present age of Jubin = 16 years

4 0
3 years ago
Jay is letting her bread dough rise. After three hours, her bread dough is 11/5 of its original size.
mojhsa [17]

Answer:

original size of Jay's bread dough is raised to 220%

Step-by-step explanation:

Let 1 be the original size of the bread

her bread dough is 11/5 of its original size.

1* \frac{11}{5} = 2.2

The original size of the bread is raised to 2.2

To get percentage we multiply by 100

2.2*100 = 220%

original size of Jay's bread dough is raised to 220%


3 0
3 years ago
What is the value of x in the equation 1,331x3 − 216 = 0?
Sphinxa [80]
In solving for the value of x in the equation 1331x^3 - 216 = 0, the steps are shown below:

1331x^3 - 216 = 0
(1331x^3 = 216) / 1331
x^3 = 216/1331
x = cube root (216/1331)
x = 6/11

Therefore, the value of x in the equation is 6/11.

4 0
4 years ago
Read 2 more answers
Find the measures of the angles of the ∆ABC if m∠A : m∠B:m∠C=2:3:4
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3 0
3 years ago
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