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
sineoko [7]
3 years ago
6

HELP!!!!!!!!!!!!!!!!!!!! ASAP!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Pani-rosa [81]3 years ago
3 0

Answer:

x < 9

Step-by-step explanation:

subtract 7 from both sides of the inequality

- 4x > - 36 ( divide both sides by - 4 )

When multiplying/dividing by a negative quantity the symbol is reversed

x < 9 ← note reversal of symbol


You might be interested in
What is the equation of the graphed line written in
Sindrei [870]

Answer: x-y= -3.... I'm just here to help so I don't know if its the right answer but if it is let me know.

Step-by-step explanation:

3 0
3 years ago
Answer this question​
MAVERICK [17]

Answer:

c. 40°

Step-by-step explanation:

The information given has been illustrated in the figure drawn in the attachment below.

m<BAD = 50° (angle bisector theorem)

m<ADB = 90° (perpendicular bisector)

m<ABD = 180 - (m<BAD + m<ADB) (sum of angles in a triangle)

m<ABD = 180° - (90° + 50°)

= 180° - 140°

= 40°

B = 40°

4 0
3 years ago
How does tripling the side lengths of a pentagon affect its perimeter
vagabundo [1.1K]
The perimeter is three times the old.

Because if the formula is
P= a+b+c and you triple each side you get P= 3a+3b+3c so it would be three times as big as the old perimeter.

For example if your equation is
P=3+2+5 (which equals 10) and then you multiply each side by 3 your new formula is P= (3•3) (3•2) (3•5) which equals 30. 30 is three times larger than 10.

Hope this helps!
4 0
3 years ago
Two planes are orthogonal if their normal vectors are orthogonal. Find the equation of a plane that is orthogonal to the plane 3
erica [24]

Answer:

X-5Y-4Z+12=0

Step-by-step explanation:

Plan P1 = 3x-y+2z=1. with A=(1,1,2); B=(2,2,1); we must will find V1 from P1,

V1 =(3,-1,2) and AB = (2-1,2-1,1-2) = (1,1,-1) now we find V2 by vector product.

V2 =V1.X,AB =\left[\begin{array}{ccc}i&j&k\\3&-1&2\\1&1&-1\end{array}\right] = i+2j+3k-(2i-3j-k)=V2=(-i+5j+4k); (aplying sarrus method)

according to general plan formula a(X-Xo)+b(Y-Yo)+c(Z-Zo); V=(a,b,c)

V2=(-1,5,4) ; A=(1,1,2);  so -(X-1)+5(Y-1)+4(z-2)=0  → -X+1+5Y-5+4Z-8=0  →

-X+5Y+4Z+1-5-8=0 → -X+5Y+4Z-12=0 (-1) → Plan equation X-5Y-4Z+12=0

4 0
4 years ago
X + y + w = b
White raven [17]

Answer:

(a) a=6 and b≠\frac{11}{4}

(b)a≠6

(c) a=6 and b=\frac{11}{4}

Step-by-step explanation:

writing equation in agumented matrix form

\begin{bmatrix}1 &1 & 0 &1 &b\\ 2 &3 & 1 &5 &6\\ 0& 0 & 1 &1 &4\\ 0& 2 & 2&a &1\end{bmatrix}

now R_{2} =R_{2}-2\times R_{1}

\begin{bmatrix}1 &1& 0 &1 &b\\ 0 &1& 1 &3 &6-2b\\ 0& 0 & 1 &1 &4\\ 0& 2 & 2&a &1\end{bmatrix}

now R_{4} =R_{4}-2\times R_{2}

\begin{bmatrix}1 &1& 0 &1 &b\\ 0 &1& 1 &3 &6-2b\\ 0& 0 & 1 &1 &4\\ 0& 0 & 0 &a-6 &4b-11\end{bmatrix}

a) now for inconsistent

rank of augamented matrix ≠ rank of matrix

for that  a=6 and b≠\frac{11}{4}

b) for consistent w/ a unique solution

rank of augamented matrix = rank of matrix

  a≠6

c) consistent w/ infinitely-many sol'ns

  rank of augamented matrix = rank of matrix < no. of variable

for that condition

 a=6 and b=[tex]\frac{11}{4}

then rank become 3 which is less than variable which is 4.

4 0
4 years ago
Other questions:
  • What is the inverse of 4/(x+7)
    12·1 answer
  • Y=3x + 2<br>equation<br>slope (m) =<br>y-intercept =​
    13·2 answers
  • At the middle school there are 32 students in a math class. Fifteen of those students are girls. What percent of the class are b
    8·1 answer
  • Solve: 20 over X = 2
    14·2 answers
  • Which inequality represents the same ages?
    15·1 answer
  • In the diagram, AB = 3 in. and BD = 5 in. If CD is tangent to B.point A,B,C are collinear and A rests on the edge of the circle.
    12·1 answer
  • The price of an item yesterday was $140. Today, the price fell to $63. Find the percentage increase.
    7·1 answer
  • Find value of x and y<br> PLEASE HELP IM RUNNING OUT OF TIME
    11·1 answer
  • What is the measure of angle x?
    12·1 answer
  • I help me ?? Ok don’t know what to do
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!