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arsen [322]
4 years ago
6

PLEASE HELP!!!!!!!!!!!!!!!!

Mathematics
2 answers:
velikii [3]4 years ago
8 0
The correct answer is B.26
AlekseyPX4 years ago
5 0

Answer:

B. 26 square inches

Step-by-step explanation:

You can find the area by finding the area of the rectangle and the area of the triangle and adding them together.

total area = area of rectangle + area of triangle

The area of a rectangle is length * width, or LW.

The length and width of the rectangle are 5 in. and 4 in.

The area of a triangle is base * height/2, or bh/2.

The height of the triangle is 4 in.

We find the base of the triangle by subtracting the length of the rectangle, 5 in., from the total length of the bottom side, 8 in.

base = 8 in. - 5 in. = 3 in.

total area = LW + bh/2

total area = 5 in. * 4 in. + (3 in. * 4 in.)/2

total area = 20 in.^2 + (12 in.^2)/2

total area = 20 in.^2 + 6 in.^2

total area = 26 in.^2

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Which values of k would cause this system of equations to have no solution? Check all that apply.
xeze [42]

Answer:

x= -2y/3

-4y+4y=14

0y= 14

This has no solution.

Step-by-step explanation:

Answer In cases of two equations having two unknown variables the simultaneous method of solving the equations is adopted.

Supposing “0” as the value of “k” we will have the equation as 3x+2y=0

Then separating variable x will give, x= -2y/3

Substituting the value of x into the first equation that is: 6x + 4y = 14

6(-2y/3)+4y=14

Expanding this we get: 6(-2y/3)+4y=14

-4y+4y=14

0y= 14

Thus, no solution.

5 0
3 years ago
Read 2 more answers
∠A and ∠B are vertical angles. If ∠A=8x+14 and ∠B=2x+50, what is m∠B?
Maslowich

Answer:

∠B = 62°

Step-by-step explanation:

Because ∠A and ∠B are vertical angles they are equal hence we can write

∠A = ∠B

8x + 14 = 2x + 50

Now we have to solve for x

To do so, subtract 2x on both sides of the equation:

6x + 14 = 50

Now, subtract 14 on both sides of the equation

6x = 36

Now, divide 6 on both sides of the equation

x = 6

To find m∠B you have to you have to plug in x = 6 back into the ∠B equation

∠B = 2(6) + 50

∠B = 62°

4 0
3 years ago
a company pays its salespeople $2,000 a month and a commission of 18% of their total sales (T). which of the following equations
SSSSS [86.1K]

Answer:

2,360

Step-by-step explanation:

18% of 2,000 is 360

(0.18)*(2,000)=360

2,000 + 360 = 2,360

7 0
3 years ago
Please help me this question​
Kryger [21]

Answer:

i got 1200 not sure ifs right tho

Step-by-step explanation:

8 0
3 years ago
Let II be the tangent plane to the graph of f(x, y) = 8 – 2x^2 – 3y^2 at the point (1, 2,-6). Let S, x² + y^2 + z = 4 be another
stealth61 [152]

Let F(x,y,z)=f(x,y)-z. The tangent plane to f(x,y) at (1, 2, -6) has equation

\nabla F(1,2,-6)\cdot(x-1,y-2,z+6)=0

We have

\nabla F(x,y,z)=(-4x,-6y,-1)\implies\nabla F(1,2,-6)=(-4,-12,-1)

Then the tangent plane has equation

(-4,-12,-1)\cdot(x-1,y-2,z+6)=0\implies -4(x-1)-12(y-2)-(z+6)=0\implies 4x+12y+z=22

Let g(x,y)=4-x^2-y^2, and G(x,y,z)=g(x,y)-z. The tangent plane to S at a point (a,b,c) is

\nabla G(a,b,c)\cdot(x-a,y-b,z-c)=0

We have

\nabla G(x,y,z)=(-2x,-2y,-1)\implies \nabla G(a,b,c)=(-2a,-2b,-1)

so that this plane has equation

(-2a,-2b,-1)\cdot(x-a,y-b,z-c)=0\implies2ax+2by+z=2a^2+2b^2+c

In order for this plane to be parallel to the previous plane, we need to have

\begin{cases}2a=4\\2b=12\end{cases}\implies a=2,b=6\implies g(a,b)=c=-36

so the point we're looking for is (2, 6, -36).

6 0
3 years ago
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