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inysia [295]
2 years ago
11

1.which expression is equivalent to (4-3i) 2

Mathematics
1 answer:
Pie2 years ago
7 0
What are the expressions that are possible you can solve by simplyfiying
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Given ED, DB which statements about the figure are true? Check all that apply.
Klio2033 [76]

Answer: EB is bisected by DF

A is the midpoint DF

EB is a segment bisector

FA=1/2FC.

Step-by-step explanation:

6 0
2 years ago
A dime has the same value of 10 pennies. Marley brought 290 pennies to the bank. How many dimes did Marley get?
IrinaVladis [17]

For this question, we can simply divide the amount of pennies she has by 10. 290/10 = 29. So, Marley has 29 dimes.

3 0
2 years ago
How do you convert 1.42 g/cm^2 to mg/mm^2 Step by Step?
dmitriy555 [2]
In the problem stated,we are asked to convert  1.42 g/cm^2 to mg/mm^2 . From the units given, 1 gram is equal to 1000 milligrams and 1 centimeter is equal to 10 millimeters. We square the second conversion to take consideration of the squaring of cm. in this case, the conversion is 1.42 g/cm2 * (1000 mg/1g)*(1 cm / 10 mm)^2 equal to 14.2 g/mm2
3 0
2 years ago
Sum of positive roots of the equation (x2 - 12x + 35) (x2 + 10x + 24) = 504 is
Digiron [165]

Answer:

(3)11

Step-by-step explanation:

We are given that

(x^2-12x+35)(x^2+10x+24)=504

We have to find the sum of positive roots of the equation.

x^2(x^2+10x+24)-12x(x^2+10x+24)+35(x^2+10x+24)=504

x^4+10x^3+24x^2-12x^3-120x^2-288x+35x^2+350x+840=504

x^4-2x^3-61x^2+62x+840-504=0

x^4-2x^3-61x^2+62x+336=0

Factor of 336

2,3,4,6,8,7,

Let x=2

2^4-2^4-61(2^2)+62(2)+336\neq0

x=2 is not the root of equation

x=-2

(-2)^4-2(-2)^3-61(-2)^2+62(-2)+336=0

Hence x=-2 is the root of equation.

x+2 is a factor of equation.

x=3

3^4-2(3^3)-61(3^2)+62(3)+336=0

Therefore, x=3  is the root of equation.

(x+2)(x-3)(x^2-x-56)=0

(x+2)(x-3)(x^2-8x+7x-56)=0

(x+2)(x-3)(x(x-8)+7(x-8))=0

(x+2)(x-3)(x-8)(x+7)=0

x-8=0\implies x=8

x+7=0\implies x=-7

Positive roots are 3 and 8

Sum of positive roots=3+8=11

Option (3) is true.

4 0
2 years ago
Amy is 1 year older than Ben. The sum of their ages is greater than 33 and less than 45 Find all possible ages of Ben
Ainat [17]

Answer:

17, 18, 19, 20, 21

Step-by-step explanation:

4 0
2 years ago
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