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3 years ago

Subtract 1/6a+3 from 1/3a−5 . Please Help Will Give !Brainliest! and Medals!!!!!!

Mathematics

1 answer:

dexar [7]3 years ago

6 0

A/6 - 8

Hope this helps!

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A health club charges a sign

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4 years ago

Rectangle A measures 8 inches by 4 inches. Rectangle B is a scaled copy of Rectangle A. Select all of the measurement pairs that

Anna007 [38]

Answer:

Step-by-step explanation:

Rectangle A measures 8 inches by 4 inches. Rectangle B is a scaled copy of Rectangle A. Select all of the measurement pairs that could be the dimensions of Rectangle B.

15 inches by 11 inches

6 inches by 3 inches

6 inches by 2 inches

16 inches by 8 inches

10 inches by 5 inches

15 inches by 7.5 inches

10 inches by 6 inches

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3 years ago

A triangular pyramid has a base shaped like an equilateral triangle. The legs of the equilateral triangle are all 20 inches long

Pie

Answer:

Surface area of pyramid with base equilateral triangle is $390+100\sqrt{3}$ square inches

Step-by-step explanation:

Recall the following result:

The total surface area(S) of a regular pyramid is given by,

$S = \frac{1}{2}pl+B$ ...... (1)

Here, p represents the perimeter of the base , $l$ the slant height and B the base area of the pyramid.

From the given information:

Side of equilateral triangle = 20 inches

Slant height of the pyramid( $l$ ) = 13 inches.

First find the perimeter and Area of the base pyramid.

Perimeter of equilateral triangle(p) = $3 \times (side)$

= $3 \times 20 = 60 inches$

Area of equilateral triangle(B) = $\frac{\sqrt{3} }{4} \times (side)^{2}$

= $\frac{\sqrt{3} }{4} \times (20)^2 = 100\sqrt{3}$ square inches.

Substitute the above values in equation (1) as shown below:

$S=\frac{1}{2} \times 60 \times 13+100\sqrt{3}$

$S= 390+100\sqrt{3}$ square inches

Hence, the surface area of pyramid with base equilateral triangle is $390+100\sqrt{3}$ square inches.

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3 years ago

Marvin Martian, Aly Alien, and Hank Human are all looking for a hidden spaceship. Their probabilities of

never [62]

Answer: Aly , Marvin, Hank

Step-by-step explanation:

Aly has the lowest with 20, Marvin has 30, and hank has 50. it says least to mostly likely to win

7 0

3 years ago

Read 2 more answers

Evaluate 3m2 -4 if m = -3

zhenek [66]

Answer:

Step-by-step explanation:

$3m^{2} - 4 = 3 * (-3)^{2} - 4 = 3 * 9 - 4 = 27 - 4 = 23$

8 0

3 years ago