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Ber [7]
3 years ago
14

Solve the system of linear equations algebraically

Mathematics
1 answer:
Flura [38]3 years ago
4 0

17 would be x=3-y and y=3+x. 18 would be x=4-y/2 and y=2x+8.

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What is the surface area of the pyramid shown to the nearest whole number? the diagram is not drawn to scale
Citrus2011 [14]

Answer:

(B) SA=72{\tex{feet^2}

Step-by-step explanation:

Given: From the figure, it is given that the length of the base is 4 feet and slant height is 7 feet.

To find: The Surface are of Pyramid.

Solution: From the figure, it is given that the length of the base is 4 feet and slant height is 7 feet.

Now, surface area of the Pyramid is given as:

SA={\text{Area of base}+\frac{1}{2}pl

where p is the perimeter and l is the slant height.

Now, area of base is given as:

A=4(4){\tex{ft^2}

A=16{\tex{ft^2}

And, the surface area is given as:

SA=16+\frac{1}{2}(4)(4)(7)

SA=16+56

SA=72{\tex{feet^2}

Hence, option  B is correct.

7 0
4 years ago
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A random sample of 240 park users was asked if they go to the park more often on week days or the weekend. The results are shown
lara31 [8.8K]
The correct answer for this question is this one: 

What type of association does the table show between weekend use of the park and gender?

no association
<u>a strong association</u>
a weak association
a moderate association
<span>
Week days Weekend
Male 50 10
Female 150 30

As shown in the table, there are more females on weekdays than on weekend, but more females go out than males.

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5 0
3 years ago
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-2t-5&gt;20 please help
Oduvanchick [21]

Answer:

t<-25/2

Step-by-step explanation:

move the constant to the right hand side and change the sign

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add the numbers

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20+5=25

divide both sides of the inequality by-2ans flip the inequality sign

t<-25/2

Answer t<-25/2

7 0
4 years ago
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Veseljchak [2.6K]

Answer:

Step-by-step explanation:

Cos=opposite/hypotenuse

Cos C=32/40   or 4:5

Cos C=0.8

7 0
3 years ago
Use the distributive property to express the sum of 48+84 as a multiple of 2 numbers with no common factor.
Bezzdna [24]
i'm thinking yes how ever tou want to do it because i am only in 4th grade
6 0
3 years ago
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