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3 years ago

Which of the following statements is true about the three quadrilaterals?

Mathematics

1 answer:

I am Lyosha [343]3 years ago

3 0

A and C should be the answer, hope this helps

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X — бу + 2x = 5 2x – 3y+z = 4 3х +4y - z = -2

icang [17]

Solve the following system of equations for x: 4x + 6y = 68 2x + 6y = 76 A. x = - 14 B. None of these. C. x = - 4 D. x = 14 E. x = 4
Top answer · 3 votes
option C is correct More

7 0

3 years ago

-4x+2=-6;2 us this a solution to the equation

Alex17521 [72]

Hi there! Yes, x = 2 is a solution to this equation.

Let's solve this equation step by step!
$- 4x + 2 = - 6$

Subtract 2 from both sides.
$- 4x + 2 - 2 = - 6 - 2 \\ - 4x = - 8$

Now divide both sides of the equation by -4 (and remember that when dividing two negatives we end up with a positive).
$x = \frac{ - 8}{ - 4} = 2$

And therefore x = 2 is a solution to this equation.
~ Hope this helps you!

4 0

3 years ago

Read 2 more answers

Find b, given that a = 20, angle A = 30°, and angle B = 45° in triangle ABC

Kamila [148]

<span>The side b is opposite to the angle B, applying the law of the sines, we have:

</span> $\frac{a}{sinA} = \frac{b}{sinB}$
$\frac{20}{sin30^0} = \frac{b}{sin45^0}$
$\frac{20}{ \frac{1}{2} } = \frac{b}{ \frac{ \sqrt{2} }{2} }$
$20* \frac{ \sqrt{2} }{2} = b* \frac{1}{2}$
$\frac{20 \sqrt{2} }{2} = \frac{b}{2}$
$2*b =2*20 \sqrt{2}$
$2b = 40 \sqrt{2}$
$b = \frac{40 \sqrt{2} }{2}$
$\boxed{b = 20 \sqrt{2} }$

6 0

3 years ago

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Between which pair of consecutive integers does square root 21 lie? 10 and 11 5 and 6 20 and 22 4 and 5

Zolol [24]

square root of 11. 3 & 4 2. square root of 33. 5 & 6 3. square root of 8. 2 & 3 4. cube root of 220. 6 & 7 5. cube root of -80. 4 & 5 6. fourth root of 20. 2 & 3 7. square root of 300. 17 & 18 8. fifth root of -35. 2 & 3 9. square root of 150. 12 & 13 10. cube root of -312. 6 & 7

8 0

3 years ago

Jonas runs a pet store that sells guinea pigs. He wants to ensure he has more than 1 pound of dry food for every five guinea pig

VLD [36.1K]

Answer:

x < 40

Step-by-step explanation:

1 lbs for 5 pigs

The ratio is 1 lbs/ 5 pigs

Let x be the number of pigs

Take the ratio and multiply by the number of pigs, this has to be less than the amount of food in the stor

x * 1/5 < 8

Multiply each side by 5

x * 1/5 * 5 < 8*5

x < 40

7 0

3 years ago

Read 2 more answers