All categories

2 years ago

Which one? Please be honest.

Mathematics

1 answer:

Aleks04 [339]2 years ago

7 0

Answer:

x = 24, y = 19

Step-by-step explanation:

Form the question,

Note: opposite side of a parallelogram are equal.

From the diagram,

2x-8 = x+16

Solve for x.

Collect like terms

2x-x = 16+8

x = 24.

Also,

2y = y+19

Solve for y

Collect like terms

2y-y = 19

y = 19.

Hence, x = 24, y = 19.

The first option is correct

You might be interested in

What is the value of the underlined digit? 14.097 7 being underlined

pogonyaev

Thousandths hope it helps

8 0

2 years ago

I could use some more help

kherson [118]

Answer:

$\left[\begin{array}{ccc}-30&22&8\\-4&-4&16\\30&-28&18\end{array}\right]$

Step-by-step explanation:

Given

$A = \left[\begin{array}{ccc}-1&9&2\\10&-10&2\\-5&6&-5\end{array}\right]$

$B = \left[\begin{array}{ccc}7&-1&-1\\6&-4&-3\\-10&10&-7\end{array}\right]$

Required

2A - 4B

To solve 2A - 4B, we first multiply matrix A by 2 and matrix B by 4

So, if

$A = \left[\begin{array}{ccc}-1&9&2\\10&-10&2\\-5&6&-5\end{array}\right]$

$2A = 2 *\left[\begin{array}{ccc}-1&9&2\\10&-10&2\\-5&6&-5\end{array}\right]$

$2A = \left[\begin{array}{ccc}-2&18&4\\20&-20&4\\-10&12&-10\end{array}\right]$

$B = \left[\begin{array}{ccc}7&-1&-1\\6&-4&-3\\-10&10&-7\end{array}\right]$

then

$4B = 4*\left[\begin{array}{ccc}7&-1&-1\\6&-4&-3\\-10&10&-7\end{array}\right]$

$4B = \left[\begin{array}{ccc}28&-4&-4\\24&-16&-12\\-40&40&-28\end{array}\right]$

So; 2A - 4B becomes

$\left[\begin{array}{ccc}-2&18&4\\20&-20&4\\-10&12&-10\end{array}\right] - \left[\begin{array}{ccc}28&-4&-4\\24&-16&-12\\-40&40&-28\end{array}\right]$

$\left[\begin{array}{ccc}-2-28&18-(-4)&4-(-4)\\20-24&-20-(-16)&4-(-12)\\-10-(-40)&12-40&-10-(-28)\end{array}\right]$

$\left[\begin{array}{ccc}-30&18+4&4+4\\20-24&-20+16&4+12\\-10+40&12-40&-10+28\end{array}\right]$

$\left[\begin{array}{ccc}-30&22&8\\-4&-4&16\\30&-28&18\end{array}\right]$

Hence, 2A - 4B is equivalent to

$\left[\begin{array}{ccc}-30&22&8\\-4&-4&16\\30&-28&18\end{array}\right]$

3 0

3 years ago

Find measure of x! Please help if you know how to do this

Ainat [17]

Answer:

52°

Step-by-step explanation:

(I'm assuming lines JK and HI are parallel)

∠JKA and ∠HIA are corresponding so they are congruent.

Therefore, since ∠JKA is 62, so is ∠HIA. Then knowing the sum of interior angles of a triangle always must be 180, you can just do the math to get 52° as the remaining angle.

66° + 62° + ∠x = 180

∠x = 52°

7 0

3 years ago

Read 2 more answers

Hat is he probability of pick 1 green marble from a bag with 7 green and 8 blue marbles

disa [49]

Answer:

7/15

Step-by-step explanation:

No. of green marbles in the bag= 7

No. of blue marbles in the bag= 8

Total no. of marbles in the bag= 7+8=15

As we know that,

Probability( of a random event A)= $\frac{Favourable\ no.\ of\ elementary\ events}{Total\ no.\ of\ elementary\ events}$

Hence in this case,

Favourable np. of elementary events (green marbles)=7

Total no. of elementary events (Total no. of marbles in the bag)= 15

Hence, Probability of picking a green marble from the bag= $\frac{7}{15}$

7 0

3 years ago

13.2)

Neko [114]

Answer:

390

Step-by-step explanation:

4 0

3 years ago