2 years ago

PLEASE HELP!!!!!!!What has to be true if you want to solve a quadratic?

Mathematics

1 answer:

Dmitrij [34]2 years ago

7 0

Answer:

Here you go

Step-by-step explanation:

The quadratic formula helps you solve quadratic equations, and is probably one of the top five formulas in math. Then the formula will help you find the roots of a quadratic equation, i.e. the values of x where this equation is solved.

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Vector A⃗ has magnitude 5.00 and is at an angle of 36.9∘ south of east. Vector B⃗ has magnitude 6.40 and is at an angle of 20.0∘

GrogVix [38]

Answer:

(x, y) = (4, -3)

Step-by-step explanation:

Relative to straight east with angles measured CCW, the vector is ...

5∠-36.9° = 5(cos(-36.9°), sin(-36.9°)) = 5(0.8, -0.6) = (4, -3)

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3 years ago

The house shown is a composite of more than one shape. Which of these methods would you use to find the volume of the house?

zimovet [89]

Answer:

find the area on one shape and the area of the other and add the shapes areas to get your answer

Step-by-step explanation:

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3 years ago

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Jayne is driving 440 miles and wants to make the trip in 8 hours. write an equation and solve to determine the average speed jay

Nuetrik [128]

Distance÷time
440÷8= 55
Therefore he needs to drive at the speed of 55 miles/hour

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2 years ago

12 is 1 more than ---- and 1 less than ----

Anna35 [415]

12 is 1 more than 11
12 is one less than 13
this ok?

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3 years ago

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Multiply (5 + 3i)(5 − 3i) 16 + 15i 16 − 15i 16 34

Annette [7]

Answer:

(5 + 3i)(5 − 3i) = 34

Step-by-step explanation:

The multiplication of two identical binomials who have different symbol, can be solved using the factoring case of a difference of squares:

$(a-b).(a+b)=a^{2}-b^{2}$

So, in this case:

$(5+3i).(5-3i) = 5^{2}-(3i)^{2}$

$=25-9i^{2}$

Remember that $i=\sqrt{-1}$

So: $i^{2}=-1$

We replace on the polynomial:

$=25-9.(-1) = 25+9=34$

3 0

3 years ago

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