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4 years ago

Plz help last one ty!!!!!!!

Mathematics

1 answer:

azamat4 years ago

4 0

My apologies on answering late...

Same situation as the previous problem, but this time, all you need to do is state the degree of the angle instead of just providing the angle itself.

ΔABC ≅ ΔDEF

Now, we can see that ∠C ≅ ∠F. Using this information, we can find ∠C on the first triangle ( which is $75$ ° ).

Since ∠C ≅ ∠F,

m∠F is $75$ °.

Hope I caught your question in time!

Have a good one! If you need anymore help, let me know.

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A bag of m&m's has 4 red, 7 green, 8 blue, and 6 yellow m&m's. what is the probability of randomly pickinga blue or gree

bogdanovich [222]

Step-by-step explanation:

a probability is always desired cases over total possible cases.

the bag has 4 + 7 + 8 + 6 = 25.

so, when we pick a random M&M we have total 25 possible outcomes.

the desired cases are to pick a green or a blue M&M.

that means these are 7+8 = 15 cases.

the probability to pick one or of the desired cases is

15/25 = 3/5 = 0.6

3 0

2 years ago

Please help me please will give brainliest do only 23 ,25, by factoring

yaroslaw [1]

9514 1404 393

Answer:

23) x = ±3i, ±√2

26) x = 4/3, (-2/3)(1 ± i√3)

Step-by-step explanation:

23) Put in standard form to make factoring easier.

x^4 +7x^2 -18 = 0

(x^2 +9)(x^2 -2) = 0 . . . . factors in integers

Using the factoring of the difference of squares, you can continue to get linear factors in complex and irrational numbers:

(x -3i)(x +3i)(x -√2)(x +√2) = 0

x = ±3i, ±√2

___

26) This will be the difference of cubes after you remove the common factor.

81x^3 -192 = 0

3(27x^3 -64) = 0

(3x -4)(9x^2 +12x +16) = 0 . . . . . factor the difference of cubes

The complex roots of the quadratic can be found using the quadratic formula.

x = (-12 ±√(12^2 -4(9)(16)))/(2(9)) = (-12 ±√-432)/18 = -2/3 ± √(-4/3)

Then the three solutions to the equation are ...

x = 4/3, (-2/3)(1 ± i√3)

5 0

3 years ago

What row of Pascal's triangle should be used when looking for the number of ways 15 students can be selected from a class of 32

skad [1K]

the number of ways 15 students can be selected from a class of 32 students

Here the number of students to be selected = 15

And the total number of students = 32

So the Number of ways 15 students can be selected from a class of 32 students should be

32 C 15 ,

it means we have to solve 32 C 15 ,

for this we need to see the 15th row of the pascals triangle.

8 0

3 years ago

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Akimi4 [234]

The equation is y=-1/3-3

3 0

3 years ago

NEED HELP ASAP

vodka [1.7K]

Amy earns $0.16 per unit for the work she does. For all units she produces in a week over 1,000, she receives $0.26. What were her weekly earnings if she produced 1,725 units in one week?

Answer: The number of units produced by Amy in one week $=1725$

For the first 1000 units, she earns $0.16 per unit. Therefore, her total earning's for the first 1000 units is $0.16 x 1000 = $160

For the remaining 1725 - 1000 = 725 units, she earns $0.26. Therefore, her total earning for the 725 units is $0.26 x 725 = $188.5

Therefore, Amy's total for one week = $160 + $188.5 = $348.5

Hence, the option b. $348.50 is correct

3 0

4 years ago