3 years ago

Which of the following is a quadratic?

Mathematics

1 answer:

irina1246 [14]3 years ago

6 0

Number 3 i would say i think it is

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Please show work

Wewaii [24]

Answer:

D and A

Step-by-step explanation:

8. 1+8n^2-5n-7

8n^2-5n-6

9. -6-7

-13

5 0

2 years ago

A bag contains 4 red marbles, 7 blue marbles, and 6 green marbles. What is the probability of choosing a blue marble when one ma

Korvikt [17]

Answer: 7/17
So there are 7 blue marbles and there are 17 marbles in total.
That means the probability of picking one blue marble is 7/17

6 0

2 years ago

Read 2 more answers

Need help on this, if it’s right I’ll make it brainliest

Andrews [41]

Answer:

(0,2)/(4,5)

Step-by-step explanation:

Im Pretty Sure That's Correct.

8 0

2 years ago

A triangle has a height that is increasing at a rate of 2 cm/sec and its area is increasing at a rate of 4 cm2/sec. Find the rat

lesya [120]

Answer:

The value of rate of which the base is changing $\frac{dB}{dt}$ = - 3 $\frac{cm}{s}$

Step-by-step explanation:

Area = 20 $cm^{2}$

height = 4 cm

$\frac{dH}{dt} = 2 \frac{cm}{sec}$

$\frac{dA}{dt} =$ $2 \ \frac{cm^{2} }{sec}$

we know that area of the triangle is given by

$A= \frac{1}{2} B H$

$B = \frac{2A}{H}$

$B = \frac{2 (20)}{4}$

B = 10 cm

Rate of change of area is given by

$\frac{dA}{dT} = \frac{1}{2} [B\frac{dH}{dt} + H \frac{dB}{dt} ]$

4 = 0.5 [10 × 2 + 4 $\frac{dB}{dt}$ ]

$\frac{dB}{dt}$ = - 3 $\frac{cm}{s}$

This is the value of rate of which the base is changing.

7 0

2 years ago

Solve the following equation: -2|3-4x|=10x

max2010maxim [7]

Answer:

I have to get the answer above hope it helps

5 0

2 years ago