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2 years ago

Show work please and no links

Mathematics

2 answers:

Mashutka [201]2 years ago

3 0

Answer:

man it’s one in the morning and your picture is blurry a f

Step-by-step explanation:

kkurt [141]2 years ago

3 0

Your pictures are blurry and one of them is upside down

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Write the equation of this line in point-slope form and slope-

DaniilM [7]

Answer:

y = -1x + 2

Step-by-step explanation:

y = -1x + b

5 = -1(-3) + b

5 = 3 + b

2 = b

y = -1x + 2

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3 years ago

A number cube is rolled and a coin is flipped. Predict how many times you would get heads and a number less than 3 in 240 trials

Novosadov [1.4K]

The answer to this is 40

3 0

3 years ago

Please help, and thank you!

lawyer [7]

Answer:

3. C

4. D

Step-by-step explanation:

$x^2+25=0\\x^2=-25\\x=\pm\sqrt{-25}$

Once $\sqrt{-1}=i$

$x=\pm5i$

A quadratic equation has no real roots when the discriminant ( $\Delta$ ) is negative. $\Delta$ .

Let's try all the equations:

(A)

$2x^2-7x-9=0\\\\\Delta=\sqrt{\left(-7\right)^2-4\cdot \:2\left(-9\right)}\\\Delta=\sqrt{\left(-7\right)^2+4\cdot \:2\cdot \:9}\\\Delta=\sqrt{121} \\\Delta=11$

(B)

$2x^2=7x\\2x^2-7x=0\\x(2x-7)=0\\x=0\\\text{or}\\2x-7=0\\2x=7\\\\$

$x=\frac{7}{2}$

(C)

$2x^2+7x-9=0\\\Delta = \sqrt{7^2-4\cdot \:2\left(-9\right)}\\\Delta = \sqrt{7^2+4\cdot \:2\cdot \:9}\\\Delta = \sqrt{121} \\\Delta= 11$

(D)

$2x^2-7x+9=0\\\Delta = \sqrt{\left(-7\right)^2-4\cdot \:2\cdot \:9}\\\\\Delta=\sqrt{-23} \\\Delta=\sqrt{23i}$

8 0

3 years ago

You provide a dog-walking service, and you report to the owners on the amount of exercise their dogs get on the walks. You walke

Eva8 [605]

the answer would be E because if you round answer E to 3mph and divide by 2 you get 1.5 and a hour is 60 minutes divide that by 2 and you get 30 minutes however you walked slightly slower so it would take 5 minutes longer.

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3 years ago

Read 2 more answers

What is the domain of the function y = log(x + 3)?

Yakvenalex [24]

Answer:

Step-by-step explanation:

have a good day

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3 years ago