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3 years ago

Find the missing side

Mathematics

1 answer:

dybincka [34]3 years ago

6 0

Answer:

7) 8.94

8) 6.71

Step-by-step explanation:

for both questions, use pythagorean theorem

$a^{2} + b^{2} = c^{2}$

Question 7:

$4^{2} + 8^{2} = c^{2}$

16 + 64 = $c^{2}$

80 = $c^{2}$

$\sqrt{80} = \sqrt{c^{2}}$

c = 8.94

Question 8:

$6^{2} + 3^{2} = c^{2}$

36 + 9 = $c^{2}$

45 = $c^{2}$

$\sqrt{45} = \sqrt{c^{2} }$

c = 6.71

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What is the value of x in f(x)= (x-3)(x+2)?

trapecia [35]

Answer:

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2 years ago

What constant do you need to add to each quadratic to complete the square?

babunello [35]

Answer:

1. 4

2. 16

3. 9

Step-by-step explanation:

Completing the square requires a quadratic in $ax^2+bx=c$ form. Once in this form, calculate $(\frac{b}{2})^2$ .

1. $(\frac{b}{2})^2=(\frac{-4}{2})^2=4$

2. $(\frac{b}{2})^2=(\frac{-8}{2})^2=16$

3. Requires you divide everything by 3 first.

$\frac{3x^2+18x}{3} =\frac{249}{3} \\x^2+6x=81$

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6 0

3 years ago

Is my answer correct? if not please correct me

elena-s [515]

Using the given equation y-3 = 3/4(x+2)

Give Y a value and then solve for x:

If y = 0 the equation is now:

0 -3 = 3/4(x+2)

Solve for x:

-3 = 3/4x + 1.5

-4.5 = 3/4x

x = -4.5 / 3/4

x = -6

So the first point would be (-6,0)

Now make x 0 and solve for y:

y -3 = 3/4(0+2)

y-3 = 0 + 1.5

y = 4.5

So the 2nd point would be (0,4.5)

You are close, but the dot you have on y=4, needs to be moved up to 4.5.

8 0

3 years ago

Please help me ASAP What is 7/16 x 1/2

Alja [10]

Answer: 7/32

Step-by-step explanation:

Multiply straight across the numerator and do the same for the denominator.

7x1=7 (numerator)

16x2=32 (denominator)

Answer is 7/32

5 0

2 years ago

The San Andreas fault separates the pacific plates from the North America plate. The pacific plate moved northward relative to t

lesantik [10]

Answer:

The time, t it will take LA and San Francisco to be next to each other is 8,245,614.04 years which is over 8 million years

Step-by-step explanation:

The given parameters are;

The speed with which the pacific plate moved northward relative to the North American plate = 5.7 cm/year = 5.7 × 10⁻⁵ km/year

The distance between current LA and San Francisco = 470 km

From the formula for speed, s, we have

Speed = Distance/Time

Therefore, Time, t = Distance/Speed

The time, t it will take LA and San Francisco to be next to each other is given as follows;

t = (Distance between LA and San Francisco)/(The speed with which the pacific plate)

t = (470 km)/(5.7 cm/year) = 470/(5.7 × 10⁽⁻⁵⁾) = 8245614.04 years

Therefore, the time, t it will take LA and San Francisco to be next to each other is 8245614.04 years.

6 0

3 years ago