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FromTheMoon [43]
3 years ago
15

To solve this system by substitution, which expression could be substituted for x

Mathematics
1 answer:
Andreas93 [3]3 years ago
3 0

Answer:

The answer is b

Step-by-step explanation:

you are substituting those numbers in for "x" because that is what the variable "x" will equal. To solve, you just simplify the terms.

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PLEASE, I NEED HELP FOR A CLASS. The length of triangle base is 26. A line, which is parallel to the base divides the triangle i
sasho [114]

Answer:

DE=18.38

Step-by-step explanation:

It is given that the length of triangle base is 26 that is BC=26.

A line, which is parallel to the base divides the triangle into two equal area parts.

Therefore, from the given information, \frac{{\triangle}ADE}{ar ABC}=\frac{1}{2}.

Now, since it is given that A line, which is parallel to the base divides the triangle into two equal area parts, thus

\frac{ar ADE}{arABC}=\frac{1}{2}=\frac{(DE)^{2}}{(BC)^{2}}

⇒\frac{(DE)^{2}}{(BC)^{2}}=\frac{1}{2}

⇒\frac{(DE)^{2}}{(26)^{2}}=\frac{1}{2}

⇒(DE)^{2}=13{\times}26=338

⇒DE=18.38

7 0
3 years ago
Find the area of the parallelogram shown below and choose the appropriate result.
Lisa [10]

Answer:

The area of the parallelogram is 0.1875 mile² ⇒ D

Step-by-step explanation:

The formula of the area of a parallelogram is A = b1 × h1 = b2 × h2, where

  • b1 and b2 are two adjacent sides of it
  • h1 and h2 are the heights perpendicular to these bases

In the given figure

∵ There is a parallelogram

∵ One of its bases is 0.25 mile

∴ b1 = 0.25 mile

∵ the height of this base is 0.75 mile

∴ h1 = 0.75 mile

→ By using the rule of the area above

∴ The area of the parallelogram = 0.25 × 0.75

∴ The area of the parallelogram = 0.1875 mile²

∴ The area of the parallelogram is 0.1875 mile²

6 0
3 years ago
Need help please!!!<br>Given parallelogram MNOP if PN=27 what is NQ ​
likoan [24]

9514 1404 393

Answer:

  NQ = 13.5

Step-by-step explanation:

The diagonals of a parallelogram bisect each other. NQ is half of NP, so is ...

  NQ = PN/2 = 27/2

  NQ = 13.5

8 0
3 years ago
Unit Rates : 6 Eggs in 7 Days.
Aleksandr-060686 [28]
6eggs/7days= 0.857 eggs/day
5 0
3 years ago
Which is bigger -1 1/2 or -1/2
bixtya [17]

Answer:

-1/2

Step-by-step explanation:

just trust me, idk how to explain it

5 0
3 years ago
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