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3 years ago

Please help! 20 points!

Mathematics

2 answers:

anyanavicka [17]3 years ago

6 0

It will be perpendicular hope this helps

Alecsey [184]3 years ago

5 0

Is there a picture or a diagram that you can take a picture or screenshot of to help with this question?

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6 (1/3x-2) please help me

levacccp [35]

Answer:

The answer will be 2x-12

Step-by-step explanation:

Hope this Helped

3 0

3 years ago

Read 2 more answers

The total surface area of this cuboid is 112cm^2. Find the value of x.

Oxana [17]

Answer:

The value of x is 3

Step-by-step explanation:

Let us study the face of the cuboind

∵ The cuboid has 6 rectangular faces

∵ Each opposite faces area equal in areas

∴ 2 faces of dimensions 10 cm and 2 cm

∴ 2 faces of dimensions 10 cm and x cm

∴ 2 faces of dimensions 2 cm and x cm

∵ The total surface area of the cuboid is the sum of the areas of the 6 faces

∵ The area of the rectangle = length × width

∴ The total surface area = 2(10 × 2) + 2(10 × x) + 2(2 × x)

∴ The total surface area = 2(20) + 2(10x) + 2(2x)

∴ The total surface area = 40 + 20x + 4x

→ Add the like terms 20x and 4x

∴ The total surface area = 40 + 24x

∵ The total surface area of this cuboid is 112 cm²

→ Equate the two sides of the total surface area

∴ 40 + 24x = 112

→ Subtract 40 from both sides

∵ 40 - 40 + 24x = 112 - 40

∴ 24x = 72

→ Divide both sides by 24

∴ x = 3

∴ The value of x is 3

7 0

3 years ago

Read 2 more answers

Brittany is making hair bows to sell at a craft show. Each hair bow requires 3/4 yard of ribbon. Brittany plans to make 50 bows.

uranmaximum [27]

A. 50 x (3/4) = 37.5

6 0

3 years ago

Destiny and Guadalupe are shopping. Destiny buys 2 pairs of pants and 6 bracelets and pays $178.Guadalupe buys 3 pairs of pants

ziro4ka [17]

For the entirety of this problem, p will represent a pair of pants and b will represent a bracelet.

Step 1) Set up equations for Destiny and Guadalupe

Destiny: 178 = 2p + 6b

Guadalupe: 155 = 3p + 2b

I will be using substitution to solve this problem, but elimination can also be used.

Step 2) Solve Destiny's equation for p

178 = 2p + 6b

178 - 6b = 2p

89 - 3b = p

Step 3) Substitute the found value of p from Destiny's equation into Guadalupe's equation and solve for b

155 = 3(89 - 3b) + 2b

155 = 267 - 9b + 2b

155 = 267 - 7b

-7b = -112

b = 16

Step 4) Use the value of b found in step 3, plug that back into our equation from step 2 and solve for p

89 - 3(16) = p

89 - 48 = p

p = 41

one pair of pants = $16

one bracelet = $41

Hope this helps!! :)

4 0

3 years ago

_________km3 what is the volume of the pyramid

harkovskaia [24]

The volume of the pyramid is $792\ km^3$

Explanation:

It is given that the base of the pyramid is a right triangle.

The formula to determine the volume of the pyramid is given by

$V=\frac{l w h}{3}$

where l is the base length of the pyramid,

w is the base width of the pyramid and

h is the height of the pyramid.

From the figure, we can see that,

$l=9$ , $w=12$ and $h=22$

Substituting these values in the formula $V=\frac{l w h}{3}$ , we have,

$V=\frac{(9)(12)(22)}{3}$

Multiplying the numerator, we get,

$V=\frac{2376}{3}$

Dividing, we get,

$V=792$

Thus, the volume of the pyramid is $792\ km^3$

5 0

3 years ago