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4 years ago

All lines are straight or a triangle has four sides.

Mathematics

2 answers:

sveta [45]4 years ago

7 0

This is a disjunction, B, because it has 2 statements with an OR in the middle.

elena-s [515]4 years ago

4 0

Answer:

B. DISJUCTION

Step-by-step explanation:

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Amy is 9 years older than her younger sister. if her younger sister is now 1 year old, how many years later will Amy be 4 times

Sholpan [36]

<h3>Answer:-</h3>

Age of Amy's younger sister=1year

☆Amy is 9 years older than her younger sister.

$\\ \sf\longmapsto Age\:of\:Amy=1+9=10years$

Let after x years Amy will be 4times old as her sister.

ATQ

$\\ \sf\longmapsto \dfrac{1+x}{9+x}=\dfrac{1}{4}$

Using cross multiplication

$\\ \sf\longmapsto 4(1+x)=1(9+x)$

$\\ \sf\longmapsto 4+4x=9+x$

$\\ \sf\longmapsto 4x-x=9-4$

$\\ \sf\longmapsto 3x=5$

$\\ \sf\longmapsto x=\dfrac{5}{3}$

$\\ \sf\longmapsto x=1.6$

$\\ \sf\longmapsto x=2(approx)$

5 0

3 years ago

Rectangle EFGH is shown with a line IJ passing vertically through the center of the rectangle.

Dovator [93]

C) shift six units up

6 0

3 years ago

Read 2 more answers

Solve for the unknown variable. 3^x=(1/3)^x+3

BabaBlast [244]

The equation is undefined where the denominator equals 0, the argument of an even indexed radical is less than 0, or the argument of a logarithm is less than or equal to 0.

Defined on all real numbers

3 0

3 years ago

Read 2 more answers

9x + 5(2x + 4) + 15 when x = 8

Olegator [25]

Answer:

187

Step-by-step explanation:

3 0

3 years ago

I need some help on this one

julia-pushkina [17]

Answer:

letter D. 19

Step-by-step explanation:

Since 71° is less than 90, we can express this in terms of a cofunction

sin (0) = cos(90 - 0)

sin(71) = cos(90 - 71)

sin(71) = cos(19)

5 0

4 years ago