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Usimov [2.4K]
3 years ago
15

Which of the following is NOT true about complementary angles? (A) Both angles are acute. (B) Neither angle can be a right angle

. (C) Their angle measures have a sum of 90°. (D) Their angle measures cannot be equal.
Mathematics
2 answers:
mylen [45]3 years ago
8 0

Answer:

Step-by-step explanation:

D is correct.  Complementary angles can certainly be equal (e. g., 45 and 45 degrees) or unequal (e. g., 30 and 60 degrees).

tester [92]3 years ago
3 0

Answer:

(D) Their angle measures cannot be equal.

Step-by-step explanation:

(A) It's fine if both angles are acute.

(B) None of the angles can be a right angle.

(C) Their sum has to be 90°.

(D) Their angle measures can be equal.

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Gabriella is x years old. Her sister, Felicia, is six years older than she is. Their mother is twice as old as Felicia. Their au
Snowcat [4.5K]

x(x+6)=

x^2+6x

4 0
3 years ago
Use linear combination to solve this problem. show your work.<br><br> 3x + 2y = -4<br> 4x - y = 13
pshichka [43]

Answer:

The solution of the system of equations is the point (2,-5)

Step-by-step explanation:

we have

3x+2y=-4 -----> equation A

4x-y=13 -----> equation B

Multiply the equation B by 2 both sides

2*(4x-y)=2*13

8x-2y=26 ------> equation C

Adds equation A and equation C

3x+2y=-4\\8x-2y=26\\----------\\3x+8x=-4+26\\11x=22\\x=2

Find the value of y

Substitute the value of x in equation A

3(2)+2y=-4

2y=-4-6

y=-10/2=-5

The solution of the system of equations is the point (2,-5)

8 0
3 years ago
Choose the function/equation that best represents the graph below.
gtnhenbr [62]
The answer is 2 because on the graph the line descends by 1 creating the “slope” which is your x value. then the y intercept means that the line always goes through y and where it meets which is 6. think to it as y=mx+b m is your slope with x plus the crossing point on the y intercept
7 0
3 years ago
Read 2 more answers
Find the value of m​
likoan [24]

Answer:

m = 9

Step-by-step explanation:

Using the rules of exponents

(a^m)^{n} = a^{mn}

a^{m} × a^{n} ⇔ a^{(m+n)}

a^{-m} = \frac{1}{a^{m} }

Then

(\frac{1}{27}) ^{m} × (81)^{-1} = 243 ← express all values to base 3

(\frac{1}{3^3}) ^{m} × (3 ^4)^{-1} = 3^{5}

(3^-3)^{m} × 3^{-4} = 3^{5}

3^{-3m} × 3^{-4} = 3^{5}

3^{(-3m-4)} = 3^{5}

Since bases on both sides are equal, both 3 , then equate exponents

- 3m - 4 = 5 ( add 4 to both sides )

- 3m = 9 ( divide both sides by - 3 )

m = - 3

8 0
3 years ago
It takes 12 people to play a 4 minute pool game. How many people would it take to play a 36 minute game?
Elena L [17]

Answer:

2

Step-by-step explanation:

8 0
2 years ago
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