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swat32
3 years ago
7

The number of sandwiches needed for a family reunion is 15 less than the number of sandwiches needed for a company picnic the nu

mber of sandwiches needed for a family reunion is 35 how many are needed for a company picnic
Mathematics
1 answer:
Alecsey [184]3 years ago
6 0

You need 20 sandwiches for a company picnic

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Evaluate the variable expression when a=-4, b=2, c=-3, and d =4. b-3a/bc^2-d​
gtnhenbr [62]

Answer:

Therefore, the variable expression when a=-4, b=2, c=-3, and d =4 is

\dfrac{b-3a}{bc^{2}-d}=1

Step-by-step explanation:

Evaluate:

\dfrac{b-3a}{bc^{2}-d}

When a=-4, b=2, c=-3, and d =4

Solution:

Substitute, a=-4, b=2, c=-3, and d =4 in above expression we get

\dfrac{b-3a}{bc^{2}-d}=\dfrac{2-3(-4)}{2(-3)^{2}-4}\\\\=\dfrac{2+12}{18-4}\\\\

\dfrac{b-3a}{bc^{2}-d}=\dfrac{14}{14}=1

Therefore, the variable expression when a=-4, b=2, c=-3, and d =4 is

\dfrac{b-3a}{bc^{2}-d}=1

6 0
3 years ago
Polygon ABCD is a parallelogram, and . The length of is 10 units, and the length of is 5 units. The perimeter of the parallelogr
Aliun [14]
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.
Below are the choices that can be found elsewhere:

A. rectangle; P = 26 linear units 

B. square; P = 42 units2 

C. parallelogram; P = 42 linear units 

D. trapezoid; P = 26 linear units


The answer would be A. 

3 0
2 years ago
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Which of the following can be modeled with a linear function? Select all that apply.
kobusy [5.1K]

Answer:

Step-by-step explanation: ifk

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2 years ago
The circular base of a cone has a radius of 5 centimeters. The height of the cone is 12 centimeters, and the slant height is 13
shepuryov [24]

Answer:

Hence, the surface area of cone is:

282.6 cm^2 which is approx 283 cm^2.

Step-by-step explanation:

We are given:

  • The circular base of a cone has a radius of 5 centimeters.

           i.e. r=5 cm.

  • The height of the cone is 12 centimeters

               i.e. h=12 cm.

  • The slant height is 13 centimeters.

                    i.e. l=13 cm.

Now we know that the surface area(S.A.) of cone is given by:

S.A.=\pi r(l+r)

Hence by putting the value of l,r and π in the formula we get:

S.A.=3.14\times 5\times (13+5)\\\\S.A.=15.7\times 18\\\\S.A.=282.6

Hence the surface area of cone is 282.6 cm^2 which is approx 283 cm^2.

4 0
2 years ago
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Triangles ABC and XYZ are similar figures, because angles A, B, and C are congruent to angles X, Y, and Z, respectively.
CaHeK987 [17]

Answer:

45cm

Step-by-step explanation:

Since they are simliar, they are proportional.

SO, you can do AC/XZ = BC/YZ

You can also see that XZ is 5 times larger than AC

SO multiply BC by 5.

8 0
2 years ago
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