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Nostrana [21]
3 years ago
8

What are the solutions to this quadratic equation? -2x2+x+4=0

Mathematics
2 answers:
natka813 [3]3 years ago
8 0

Answer:

=1±33√4

Step-by-step explanation:

Bad White [126]3 years ago
3 0

Answer:

x =\frac{1+/-\sqrt{33} }{4}

Step-by-step explanation:

It wouldn't let me put the symbol in the equation but +/- is just the same thing as ±

This answer is correct on edmentum/plato

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PLEASE HELP ME FAST!!! Monica's bicycle wheel has a radius of 16 inches. Kevin's tricycle wheel has a radius of 8 inches. How ma
Art [367]

Answer:

50.2 inches

Step-by-step explanation:

The wheel of a tricycle is circular in shape.

The circumference of a circle = 2πr

For Monice

Monica's bicycle wheel has a radius of 16 inches.

The circumference of her bicycle wheel = 2 × π × 16

= 100.53096491 inches

Approximately = 100.5 inches

For Kevin

Kevin's tricycle wheel has a radius of 8 inches.

The circumference of his wheel =

2 × π × 8

= 50.265482457 inches

Approximately = 50.3 inches

How many times larger is the circumference of Monica's wheel that the circumference of Kevin's tricycle wheel?

This is calculated as:

Circumference of Monica's wheel - Circumference of Kevin's wheel

= 100.5 inches - 50.3 inches

= 50.2 inches

Hence: Monica's wheel is 50.2 inches larger than Kevin's wheel

6 0
4 years ago
1. What is the GCF of 42 and 66?
almond37 [142]

Answer:

The greatest common factor (GCF) of 42 and 66 is 6.

(Btw, I did not copy anyone, so please do not say I did. Also, I am the first answer..)

5 0
3 years ago
Read 2 more answers
Solve equation.<br> 2x-5y=20
Novay_Z [31]
If you solve for x you get:
x=(<span><span><span>5/2)</span>y</span>+<span>10
</span></span>
If you solve for y you get:
y=(<span><span><span>2/5)</span>x</span>−<span>4</span></span>
5 0
4 years ago
Simplify (√(π -√17)^2)
svetlana [45]

Answer: The answer is Iπ + √17|.

3 0
3 years ago
*EASY GRADE 7 MATH*
neonofarm [45]

Step-by-step explanation:

We can see from the image that z and 20° degrees are complementary, meaning they have a sum of 90°. From this, z = 70°. Hope this helps!

3 0
3 years ago
Read 2 more answers
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