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3 years ago

-4 2/3 times (-1 1/2) SHOW YOUR WORK TO GET BRAINLIEST~~~~!!~

Mathematics

1 answer:

eduard3 years ago

6 0

Answer:

-4 2/3 times (-1 1/2)

Step-by-step explanation:

14.6 repeating

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Je Senah

ss7ja [257]

Answer:

B (1,0)

Step-by-step explanation:

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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

PLEASE HELP ASAP!!! CORRECT ANSWERS ONLY PLEASE!!! I CANNOT RETAKE THIS!! Solve for x.

m_a_m_a [10]

also the last one your correct

7 0

3 years ago

A cone-shaped paper cup can hold 35 cubic inches of food. If the radius of the cone is 2.4 inches, what is the height of the con

Arada [10]

Volume of cone : (1/3) * pi * r^2 * h

35 = (1/3) * 3.14 * 2.4^2 * h 

h = 35 / ((1/3) * 3.14 * 2.4^2) 

h ≈ 5.805 in 

h = 5.81 in
Hope this helps you

6 0

3 years ago

Read 2 more answers

A parabola has a vertex at (2,3) and a focus at (2,0)

hoa [83]

Answer:

....................

Step-by-step explanation:

6 0

3 years ago