1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vlabodo [156]
3 years ago
14

Can someone help me with questions 25 through 28

Mathematics
1 answer:
AleksAgata [21]3 years ago
3 0
25. 3y+15

26. 15k+20

27. 21n+7p

28. 60w+20x

Also, you got number 19, number 21, and number 24 wrong.

D+D+D+D+D = 5D, not D⁵

S+S+S = 3S, not S³

N+N+N+N = 4N, not N⁴

Remember, repeated addition, (n+n+n) is 3n. Repeated multiplication, (n•n•n) is n³.

Hope this helps.
You might be interested in
Roduct.<br> 93 + (68 + 7)
Pani-rosa [81]

Answer:

Step-by-step explanation:

93 + (68 + 7)=  168

6 0
4 years ago
Read 2 more answers
A balalaika is a Russian stringed instrument. Show that the triangular parts of the two balalaikas are congruent for x = 6.
Ann [662]

*the diagram of the Russian stringed instrument is attached below.

Answer/Step-by-step explanation:

To show that the traingular parts of the two balalaikas instruments are congruent, substitute x = 6, to find the missing measurements that is given in both ∆s.

Parts of the first ∆:

WY = (2x - 2) in = 2(6) - 2 = 12 - 2 = 10 in

m<Y = 9x = 9(6) = 54°.

XY = 12 in

Parts of the second ∆:

m<F = 72°

HG = (x + 6) in = 6 + 6 = 12 in

HF = 10 in

m<G = 54°

m<H = 180 - (72° + 54°)

m<H = 180 - 126

m<H = 54°

From the information we have, let's match the parts that are congruent to each other in both ∆s:

WY ≅ FH (both are 10 in)

XY ≅ GH (both are 12 in)

<Y ≅ <G (both are 54°)

Thus, since two sides (WY and XY) and an included angle (<Y) of ∆WXY is congruent to two corresponding sides (FH and GH) and an included angle (<G) in ∆FGH, therefore, ∆WXY ≅ ∆FGH by the Side-Angle-Side (SAS) Congruence Theorem.

This is enough proof to show that the triangular parts of the two balalaikas are congruent for x = 6.

7 0
3 years ago
Find the area of the irregular polygon?
Oksi-84 [34.3K]

Answer:

4 x 12 = 48, 48 divided by 2 = 24

8 x 12 = 96

96 + 24 = 120 ft^2

5 0
3 years ago
Read 2 more answers
10(-2 - 9v) what is it
NeX [460]

Answer:

-20 - 90v

Step-by-step explanation:

10(-2-9v) multiply each term in parentheses by 10

-10 × 2 - 10 × 9v multiply the numbers

-20 - 10 × 9v calculate the product

-20 - 90v is the answer

8 0
3 years ago
(9c^2 + 3c + 9) - (9c^2 + 2c + 7)
IRISSAK [1]

Answer:

c+2

Step-by-step explanation:

Distribute the Negative Sign:

=9c2+3c+9+−1(9c2+2c+7)

=9c2+3c+9+−1(9c2)+−1(2c)+(−1)(7)

=9c2+3c+9+−9c2+−2c+−7

Combine Like Terms:

=9c2+3c+9+−9c2+−2c+−7

=(9c2+−9c2)+(3c+−2c)+(9+−7)

4 0
3 years ago
Read 2 more answers
Other questions:
  • 6 pipes can fill a reservoir in 24minutes.one pipe can fill it in
    8·1 answer
  • Which system of equations is represented by the graph? (2 points)
    5·2 answers
  • Which equation could have been used to create this function table?
    7·1 answer
  • Find three consecutive even integers that sum up to -72.
    5·1 answer
  • Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to
    9·1 answer
  • Im too singleee i need a fine boy friend jk jk jk jk jk jk jk i need to focus on schooll
    5·2 answers
  • Mollie bought 12 packages of carrots for a total of $48. She realized she needed to purchase another 10 more packages. How much
    10·2 answers
  • Question number seven answer
    5·2 answers
  • A train takes 1.5 hours to travel 525 km. Calculate the speed of the train in kilometers per hour.
    5·2 answers
  • It would be appreciated if there could be an explanation along the answer
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!