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2 years ago

Use for questions 21-24: Out of 50 students, 24 are taking art and 30 are taking music. Sixteen of the

Mathematics

1 answer:

Simora [160]2 years ago

6 0

Answer:

jjjjjj=jjjsaeehka

i dont know the answer

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(2r - 6)(-5r+4) what is the product

Akimi4 [234]

Answer:

$-10r^{2} +38r-24$

Step-by-step explanation:

Apply FOIL method: $(a+b)(c+d)=ac+ad+bc+bd$

$a=2r,b=-6,c=-5r,d=4$

$=2r(5-r)+2r*4+(-6)(-5r)+(-6)*4$

Apply minus - plus rules

$+(-a)=-a,(-a)(-b)=ab$

$=-2*5rr+2*4r+6*5r-6*4$

Simplify

Multiply $-2*5rr=-10r^{2}$

$=-10r^{2} +2*4r+6*5r-6*4$

Multiply $2*4r=8r$

$=-10r^{2} +8r+6*5r-6*4$

Multiply $6*5r=30r$

$=-10r^{2} +8r+30r-6*4$

Combine like terms

$=-10r^{2} +38r-6*4$

Multiply $-6*4=-24$

$=-10r^{2} +38r-24$

$-10r^{2} +38r-24$

6 0

3 years ago

20 points.<br><br>Solve for a.

Hoochie [10]

Answer:

30 degrees

Step-by-step explanation:

The sum of exterior angles = 360 degree

102 + 73 + 67 + 88 + a = 360

330 + a = 360

a = 360 - 330

a = 30 degree.

HOPE THIS HELPED YOU

4 0

2 years ago

Read 2 more answers

What are the solutions of the equation x^6-9x^3+8=0

Triss [41]

USE CALCULATOR!!! EPLAINT OOOO

4 0

3 years ago

zhannawk [14.2K]

Answer:

D (4,10)

Step-by-step explanation:

the answer is d

4 0

2 years ago

Multiplicative inverse of a neggative<br>rational number is

lions [1.4K]

$for \: a \: rational \: number \: \frac{a}{b} \: such \: that \: 0 > a \: \: \: \: \: \: 0 < b \\ its \: multiplicative \: inverse \: is \: - \frac{b}{a}$

6 0

2 years ago