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zimovet [89]
4 years ago
9

I need help with this problem ASAP please i have until tmrw to finish my course entirely so if anyone can help it would be great

ly appreciated ​

Mathematics
1 answer:
givi [52]4 years ago
6 0

Answer:

Equation: f(x) = -x² + 3

Step-by-step explanation:

If we want to find the roots/solve for <em>x</em>, we can either graph the problem or use quadratic formula to find when f(x) = 0:

To get the equation of the graph, our parent function is: f(x) = a(x - h)² + k, or f(x) = x². Since we are reflecting over the x-axis with a vertical stretch and vertically moving up to (0, 3), we are modifying <em>a</em> and <em>k</em> only.

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Which of the following is the correct description of 'Slope'?
Gala2k [10]

Answer:

rise over run

Step-by-step explanation:

the slope in graphing is rise over run

5 0
3 years ago
The lengths of the sides of a triangle are in the ratio of 6:6:5. The perimeter of the triangle
Oliga [24]

Hello!

Answer:

12 cm, 12 cm, 10 cm.

Step-by-step explanation:

Given:

Perimeter, or P = 34 cm

Ratio of sides = 6 : 6 : 5

To find the length of each side, we can use a variable in the ratio to find the perimeter:

34 = 6x + 6x + 5x

Combine like terms:

34 = 17x

Solve for x:

34/17 = 17x/17; x = 2

Plug in this value of "x" into each expression for the side-lengths:

6(2) = 12 cm

6(2) = 12 cm

5(2) = 10 cm

Therefore, the lengths of each side of the triangle are 12 cm, 12 cm, 10 cm.

Hope this helped you! :)

4 0
3 years ago
Read 2 more answers
Sina×tga=1/2, cosa=?​
ArbitrLikvidat [17]

Answer:

<em>cos a = -1.28 and 0.78</em>

Step-by-step explanation:

The question is not properly written. This is the correct question:

If sina×tan(a) = 1/2, find cosa

According to trigonometry identity;

tan a = sina/cosa

sina×tan(a) = sin a * sina/cosa

sin²a/cos a = 1/2

(1-cos²a)/cosa = 1/2

Cross multiply

2(1-cos²a) = cos a

2 - 2 cos²a = cos a

2cos²a + cos a - 2 = 0

Let P = cos a

2P² + P -2 = 0

P = -1 ±√1-4(2(2)/2(2)

P =  -1 ±√1+16/4

P = -1 ±√17/4

P = -1±4.12/4

P = -1-4.12/4 and -1+4.12/4

P = -5.12/4 and 3.12/4

P = -1.28 and 0.78

Since P = cos a

<em>Hence cos a = -1.28 and 0.78</em>

7 0
3 years ago
Spongebob rectangular body has an area of (x ​2 ​​ −15x 54) feet. what is his width and height in feet?
marusya05 [52]
I hope this helps you

8 0
4 years ago
A muffin recipe, which yields 12 muffins, calls for 2/4 cup of milk for every 1 3/4 cups of flour. The same recipe calls for 1/4
mezya [45]

Answer:

b) 4 3/8

Step-by-step explanation:

we know that

12 muffins calls for 1 3/4 cups of flour

using proportion

Find out how much flour will be needed in the mix for a bath of 30 muffins

\frac{12}{1\frac{3}{4}}=\frac{30}{x}\\\\x=30(1\frac{3}{4})/12

Convert mixed number to an improper fraction

1\frac{3}{4}=1+\frac{3}{4}=\frac{7}{4}

substitute

x=30(\frac{7}{4})/12\\\\x=\frac{210}{48}\ cups\ of\ flour

convert to mixed number

\frac{210}{48}=\frac{192}{48}+\frac{18}{48}=4\frac{3}{8}\ cups\ of\ flour

7 0
3 years ago
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