3 years ago

Springboard Geometry Chapter 21 Mid-Unit Assessment

Mathematics

1 answer:

ExtremeBDS [4]3 years ago

4 0

I really don't know just say its o

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There are four blue marbles, an unknown number of red (r) marbles, and six yellow marbles in a bag. Which expression represents

MAXImum [283]

Answer:

There are a total of 4 + r + 6 marbles in the bag

The probability of a blue is $\frac{4}{10+r}$

The probability of a red is $\frac{r}{10+r}$

The probability of choosing a blue, replacing it and then a red is

$\frac{4}{10+r}$ × $\frac{r}{10+r}$ = [tex]\frac{4r}{100+20r+ r^{2} /[tex]

Step-by-step explanation:

6 0

3 years ago

Find the sum of 2y²+3yz-y²-yz-z²+6zy-3y² please help STEP explanation

larisa86 [58]

Answer:

See picture attached

Step-by-step explanation:

I hope this helps you.

Please give me brainliest if it's correct

7 0

3 years ago

Read 2 more answers

How do I find a common denominator for a complex faction when one denominator is 2m-1 and the other is 2m+5

ratelena [41]

The best option is to multiply them together, there would be no value that is common between the two, (2m - 1)(2m + 5), and leave it in this form.

However, there is a second method.
Notice how between the two sits a difference of 6.
You can manipulate one of the fractions to render the same denominator and work from there.

3 0

3 years ago

If ABF= (7x + 20), FBC=(2x - 5), and ABC= 159", find the value of x. x =

s2008m [1.1K]

Given :

∠ABF = ( 7x + 20 )°

∠FBC=(2x - 5)°

∠ABC= 159°

To Find :

The value of x .

Solution :

Assuming B the center of a circle .

So , all three given angles must be added to 360° .

$(7x+20)+(2x-5)+159=360\\\\9x+15+159=360\\\\x=20.67$

Therefore , the value of x is 20.67° .

Hence , this is the required solution .

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3 years ago

What is 7 devided by 215 and the reminder of it

miss Akunina [59]

30 with the remainder of 714

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3 years ago