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2 years ago

Solve using the quadratic formula. 5v2 − 7v − 7 = 0

Mathematics

1 answer:

dimulka [17.4K]2 years ago

8 0

Answer:

Move everything so all terms are on one side of the = sign, and solve for zero using the Quadratic Formula. There are two answers: v=7±√69

Step-by-step explanation:

Subtract 1 from both sides so you have

e "standard form" of a quadratic is

, so first we have to identify a, b, and c in your equation: a=5, b= -7, and c= -1.

The quadratic formula is

. Plugging in your values, we get

−

. It looks a little funny, but you can't simplify it any more. You can check the answer by graphing the function on your calculator and asking for the function value at these points.

After graphing, hit 2nd, "Calc", "Value" on your TI, and type in either

, and you'll get that

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Factorise fully p^3 + p^2

nikklg [1K]

Answer:

$\huge\boxed{p^3+p^2=p^2(p+1)}$

Step-by-step explanation:

$p^3+p^2\\\\p^3=p^{2+1}=p^2\cdot p\\\\p^3+p^2=p^2\cdot p+p^2\cdot1=p^2(p+1)$

Used:

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3 years ago

If the measure of the angle in the southwest corner of the intersection of Broadway and 21st Street is approximately 105ºwhat is

Karolina [17]

Answer:

95°

Step-by-step explanation:

The angle on the 20TH street and 22ND street must add up to 180° so the answer is 95°

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3 years ago

How many faces does this shape have?

Veseljchak [2.6K]

DO NOT LISTEN TO THE OTHER PERSON, you can CLEARLY see thats not the right answer. She/He is bluffing.

The true answer:
The shape has 4 faces. Faces means the sides of a 3d figure/the sides are the 2d shapes that form together to form one 3d figure. Btw that figure is a triangular pyramid.
Com.ment me if u have any questions

Have a nice day!

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3 years ago

If - 3- 12, what is the value of x? 4 00 O 18 0 24

malfutka [58]

Answer:

Step-by-step explanation:

$\frac{2}{3}$ = $\frac{x}{12}$

We make the denominator the same by multiplying $\frac{2}{3}$ by 4.

$\frac{8}{12}$ = $\frac{x}{12}$

Thus, x = 8.

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3 years ago

A=pt+q p= -1, t=4 and q=6 work out the value of a

77julia77 [94]

Answer:

a = 2

Step-by-step explanation:

a = pt + q

p = -1

t = 4

q = 6

a = -1(4)+6

a = -4+6

a = 2

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3 years ago