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2 years ago

9

A puzzle book cost $4.25. A NOVELCOST $9.70 more than the puzzle book. Which is the most reasonable estimate for the total cost

of both items: $14, $16 $18.

2 answers:

Vitek1552 [10]2 years ago

5 0

18. Just add them and you should get 1&

NNADVOKAT [17]2 years ago

3 0

Answer:

$18

Step-by-step explanation:

$4.25 + $9.70 + $4.25 = $18.20

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An 8-sided die is formed when two square pyramids are attached by their bases. The perimeter of the base shape is 6 centimeters.

lawyer [7]

Answer:

7.5cm²

Complete question:What is the surface area of the 8-sided figure?

Step-by-step explanation:

Consider the half of the 8-sided die i.e the pyramid ABCDE:

As the base is 6 of the perimeter, so each side of the base is 6/4=3/2

Now, the distance between the tallest points is 2 cm, so the height of Pyramid ABCDE is 1 cm.

Considering the right triangle EOM:

EO=1, OM= 3/4 (it is half of AB=3/2) and EM is the hypothenuse, so by the pythagorean theorem length of EM is

$\sqrt{1+ ( \frac{3}{4} )^{2} }= \sqrt{1+ \frac{9}{16} }= \sqrt{ \frac{25}{16} }= \frac{5}{4} (cm)$

5. So side EBC has area

$\frac{1}{2}BC*EM= \frac{1}{2}* \frac{3}{2}* \frac{5}{4}= \frac{15}{16}$

6. The total area is 8*Area(EBC)= $8* \frac{15}{16}= \frac{15}{2}=7.5 ( cm^{2} )$

3 0

2 years ago

What is the value of -4° + (5-2)(-6)?

34kurt

Answer:

-22

Step-by-step explanation:

Due to order of operations rules, we must perform the subtraction inside parentheses first, getting:

-4 +(3)(-6)

Multiplication comes next:

-4 - 18

and the total value is thus -22.

8 0

3 years ago

If two lines are parallel, corresponding angles are _________.

jolli1 [7]

B. congruent, im pretty sure

6 0

2 years ago

Read 2 more answers

Is it a b c or d i need help pleaseee

Dmitrij [34]

Answer:

d

Step-by-step explanation:

5 0

2 years ago

The length of the base of an isosceles triangle is x. The length of a leg is 4x - 2. The perimeter of the triangle is 95. Find x

adell [148]

Answer:

x = 11

Step-by-step explanation:

sides of triangle measure: 'x', '4x-2' and '4x-2' since isosceles means both legs are equal

perimeter is the sum of all sides, so set up equation:

95 = 4x - 2 + 4x - 2 + x

95 = 8x - 4 + x

95 = 9x - 4

99 = 9x

x = 11

5 0

2 years ago