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
Alenkasestr [34]
3 years ago
12

I need help with this (9x+7)+(x+3)

Mathematics
2 answers:
coldgirl [10]3 years ago
3 0

Answer:

9x^2+34x+21

Step-by-step explanation:

distribute all the numbers

Slav-nsk [51]3 years ago
3 0
I got 10(x+1) or 10x+10
You might be interested in
The legs of a right triangle have the lengths of 8 centimeters and 15 centimeters. What is the length of the hypotenuse, in cent
Anastasy [175]

Answer:

Step-by-step explanation:

WeknowthatsinceABCisarightangledtriangle,  

AB2+BC2=AC2

82+152=AC2

64+225=AC2

AC2=289

AC=289−−−√=17

Hypotenuse=17cm

4 0
3 years ago
1.)Painting Jane is painting one wall of her living room. The wall is rectangular, 13 feet wide by 9 feet high. What is the area
antiseptic1488 [7]

Answer:

1. 117 ft^{2}

2. 54 ft^{2}

3. 1,428 ft^{2}

4. 644 ft^{2}

5. 4,700 ft^{2}

6. 57,600 ft^{2}

Step-by-step explanation:

First use A = w*l

w = width

l = length

It doesn't have to be A = w*l, it could be A = l*w.   It will be the same answer.

1.  3 ft * 9 ft = 117 ft^{2}

2. 3 ft * 18 ft = 54 ft^{2}

3. 42 ft * 34 ft = 1,428 ft^{2}

4. 23 ft * 28 ft = 644 ft^{2}

5. 94 ft * 50 ft = 4,700 ft^{2}

6. 360 ft*160 ft = 57,600 ft^{2}

3 0
2 years ago
What is the varible of -10 = xy +z for x
Verdich [7]

The variable is y

Z is a constant.

4 0
3 years ago
Help with matrices please? Any wrong/not applicable answers will be reported and BLOCKED
marin [14]

m x H = \left[\begin{array}{ccc}-25&37.5&-12.5\\\9\end{array}\right]

Step-by-step explanation:

Step 1; Multiply 5 with this matrix  \left[\begin{array}{ccc}-1&2\\4&8\\\end{array}\right] and we get a matrix \left[\begin{array}{ccc}-5&10\\20&40\\\end{array}\right]

Multiply the fraction  \frac{2}{5} with the matrix  \left[\begin{array}{ccc}-1&2\\4&8\\\end{array}\right] and we get \left[\begin{array}{ccc}-\frac{2m}{5} &\frac{4m}{5} \\\frac{8m}{5} &\frac{16m}{5} \\\end{array}\right]

Step2; Now equate corresponding values of the matrices with each other.

-5 = \frac{-2m}{5} and so on. By equating we get the value of m as \frac{25}{2}

Step 3; Add the matrices to get the value of matrix m.

Adding the three matrices on the RHS we get  \left[\begin{array}{ccc}2&9&-9\\\end{array}\right].

Step 4; Adding the matrices on the LHS we get the resulting matrix as H +

\left[\begin{array}{ccc}4&6&-8\\\9\end{array}\right]. Equating the matrices from step 3 and 4 we get the value of H as \left[\begin{array}{ccc}-2&3&-1\\\9\end{array}\right]

Step 5; Now to find the value of m x H we need to multiply the value of \frac{25}{2} with the matrix \left[\begin{array}{ccc}-2&3&-1\\\9\end{array}\right]

Step 6; Multiplying we get the matrix m x H = [ -25  \frac{75}{2}  \frac{-25}{2} ]

8 0
2 years ago
6+6y=-30 solve for y​
kakasveta [241]

Answer:

y = -6

Step-by-step explanation:

6 + 6y = -30

6y = -30 - 6

6y = -36

y = -6

7 0
2 years ago
Other questions:
  • Please help me in this question and please explain it thanks
    13·1 answer
  • Is the answer to this D???? U are finding the midpoint again...
    12·1 answer
  • 2 =6.28 3 =9.42 5 =15.70 3=1.40 36= X What is the value of x
    15·1 answer
  • 4(-2)squared+8(-2)+3(-2)+6 answer
    10·1 answer
  • If there are less than 5 ones, the number is closer to the _ ten?
    7·1 answer
  • Put these numbers from least to greatest. I'm too lazy to do it. it's for trigonometry.
    9·2 answers
  • Plz help me get the right answer for these I hate math -.-
    6·1 answer
  • Antonio has a CD-player that holds six CDs. He puts six different CDs in the player and the CD player randomly plays a song from
    8·2 answers
  • The balance of Micah's checking account is $645. Micah needs at least $800 in the account to cover his expenses. Write and solve
    6·1 answer
  • Write 1.0315x10^6 in standard form
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!