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4 years ago

Work out 4/9 + 2/9 and simplify where possible (it isnt 6/9)

Mathematics

1 answer:

stepan [7]4 years ago

5 0

Answer:

2/3

Step-by-step explanation:

4/9+2/9=6/9

then you have to reduce/simply your answer more from 6/9

divide each number by 3 and that with give you your answer 2/3.

6÷3=2 and 9÷3=3

Adding fractions with same denominator

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What is the value of y?<br><br> Enter your answer, as an exact value, in the box.

sladkih [1.3K]

Answer:

y=4√3 units

Step-by-step explanation:

Hi there!

We are given ΔABC, which is a right triangle (m<C=90°), m<A=60°, AB=8, and BC=y

We need to find the value of y (BC)

The side AB is the hypotenuse of the (the side opposite from the right angle).

BC is a leg, which is a side that makes up the right angle.

Now, if we have a right triangle that has one of the acute angles as 60°, the side OPPOSITE from that 60° angle (in this case, BC) is equal to $\frac{a\sqrt{3}}{2}$ , where a is the length of the hypotenuse

Since we have the hypotenuse given as 8, the length of BC (y) is $\frac{8\sqrt{3}}{2}$ , or 4√3

so <u>y=4√3 units</u>

Hope this helps!

8 0

3 years ago

If the mean, median, and mode are all the same for 4, 9, 7, 8, and x, what is the value of x?

seropon [69]

<h3>Answer: x = 7</h3>

===========================================================

Explanation:

Since we have an odd number of values, this tells us that the median is part of the data set. It's the middle most item after we sort the values.

Recall that the mode is the most frequent item. Since the mode and median are the same, this must mean x can only be equal to one of the following

4, 9, 7 or 8

We can only pick one of those values.

----------------------

If x = 4, then the set {4,9,7,8,x} updates to {4,9,7,8,4} which sorts to {4,4,7,8,9}

The middle most item is in slot 3, which would be 7. So the median is 7.

The median 7 does not match with the mode 4.

So we cross x = 4 off the list.

-----------------------

If x = 7, then we have {4,7,7,8,9}

The mode is 7 and the median is 7. So far, so good.

Now let's compute the mean. Add up the values and divide by 5 because there are 5 items.

(4+7+7+8+9)/5 = 35/5 = 7

We've shown that the set {4,7,7,8,9} has mean 7.

Overall, that set has the same mean, median and mode. So the answer is confirmed.

I'll let you check the cases when x = 8 and x = 9.

8 0

3 years ago

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user100 [1]

Answer:

second one (b)

Step-by-step explanation:

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8 0

3 years ago

Davis predicts that if he spins the spinner another 20

alukav5142 [94]

Answer:

Step-by-step explanation:

or if your on online school the last one

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5 0

4 years ago

Find the sum of the measures of Angle A, Angle B, Angle C and Angle D.

12345 [234]

Answer:

my problem is this. Solve the problem.The sum of the measures of the angles in any triangle is 180 degrees. In triangle ABC, angles A and B have the same measure, while angle C is 42 degrees larger t…

In triangle ABC, angles A and B have the same measure, while angle C is 42 degrees larger than each of the other two angles. Find the measure of angle Step-by-step explanation:

Find the measures of angles A, B, and C in triangle ABC, if measure of angle B = 5 times the measure of angle A measure of angle C = measure of angle A + 110

✓ A + B + C = 180 A + 5A + A+110 = 180

4 0

3 years ago