Mathematics Middle School

Please help! This is due today! I just need help with this one problem!

Answers

Answer 1

Linear equations are 2a + 3b = 82 and a + b = 38
A = 32
B = 6

Answer 2

The answer: A=32
B=6

Related Questions

help asap plz i just cant

Answers

Answer:

(0,-7)

(1,-9)

(-1,-5)

(-2,-3)

Step-by-step explanation:

Your slope would be 2/3

I think this is right. Let me know if you know the formula and i can explain it to you!

(-6,5)

(-4,1)

(2,-9)

(-5,3)

Simplify the algebraic expression:

2(y + 5) + 3y - 4

Answers

Answer:

2y +10 +3y-4

5y+6

Step-by-step explanation:

Answer: 5y + 6

Step-by-step explanation:

1. Distribute:

=2(y+5)+3y-4

=2y+10+3y-4

2. Subtract

=2y+10+3y-4

=2y+6+3y

3. Combine Like Terms

=2y+6+3y

=5y+6

buck is building a horse corral with the shape and dimensions shown in the sketch. He wants to make sure the corners of the corral measure 90 degrees

how long must diagonal AC be so angle B is a right angle?

uprgigt corner is D other side is C

Downleft is A across from B
16 ft down and 12 ft side

Answers

Answer:

BxA=F

Step-by-step explanation:

Diagonal AC must be 20 feet so that ∠B will be 90°.

According to asked question, buck is creating a horse coral by designing in such a way that corners will be at 90°.

So according to question we have to make ∠B as 90°.

So quadrilateral ABCD becomes a rectangular.

Therefore ΔABC will be a right-angle triangle in which we can use Pythagoras theorem to measure the diagonal AC.

What is Pythagoras Theorem?

The Pythagoras Theorem says that in a right-angle triangle, the square of the hypotenuse is the sum of square of the other two sides of the right-angle triangle.

In the right-angle tringle ΔABC,

AC²=AB²+BC²

⇒ AC²=16²+12²

⇒ AC²=256+144=400

⇒AC=√400

⇒AC=20 feet

Therefore, Diagonal AC must be 20 feet so that ∠B will be 90°.

Learn more about Pythagoras Theorem

Here: https://brainly.com/question/343682

#SPJ2

A jar contains 2 red, 5 green, 2 blue and 6 yellow marbles. A marble is chosen at random from the jar. After replacing it, a second marble is chosen. What is the probability of choosing a green and then a yellow marble?

Answers

Answer:

Step-by-step explanation:

The probability of picking an item A in a box of N items depends on nA, the amount of items A in the box at the time of picking, with the kinda instinctive value:

p = nA / N

then it means that if you have no green ball, the probability is 0/N = 0, if you only have green balls, it means you have a probability of N/N = 1 = 100%, and if you have as many green balls as non-green balls, you have a probability of nA/(2nA) = 0.5 = 50%.

Here the probability of first picking a green ball (nG=5) in a box of N=3+5+2+6=16 for the 1st pick is:

pG1 = 5/16

Now the trick here is that once you picked the green ball, you put it back in the box before picking another ball. So you still have N=16 balls for the second pick, and the probability of picking a yellow ball (nY=6) for the 2nd pick is:

pY2 = 6/16 = 3/8

(it would have been slightly higher, at 6/15, if you did NOT put back the green marble in the box).

Now you want BOTH events to be true. So you want G1 to be true AND Y2 to be true. The two events are independent (the probability of Y2 is 6/16 if you had G1 but is also 6/16 if you failed G1), so the probability of having both is simply done by multiplicating them:

pG1Y2 = pG1 * pG2 = 15/128

help me with this please show work thanks

Answers

First do you need to do 5×4 which equals 20 and then you need to do 8×2 which equals 16 so your answer would be 16 at the top and then 20th the bottom

Answer:

first thing is first u have to do 5+2 =7 then do 8+4=12 your answer will be 7/12

Step-by-step explanation:

What unit should be placed on a volume answer? cubed or squared

Answers

Answer:

volume is cubed

area is squared

Step-by-step explanation:

The unit placed on a volume answer is cubed and area is squared

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