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2 years ago

What fraction of this shape is shaded?

Mathematics

1 answer:

Lilit [14]2 years ago

5 0

15% it’s running
That’s all I’m aware of

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Use linear combination to solve this problem. show your work. 3x + 2y = -4 4x - y = 13

pshichka [43]

Answer:

The solution of the system of equations is the point $(2,-5)$

Step-by-step explanation:

we have

$3x+2y=-4$ -----> equation A

$4x-y=13$ -----> equation B

Multiply the equation B by 2 both sides

$2*(4x-y)=2*13$

$8x-2y=26$ ------> equation C

Adds equation A and equation C

$3x+2y=-4\\8x-2y=26\\----------\\3x+8x=-4+26\\11x=22\\x=2$

Find the value of y

Substitute the value of x in equation A

$3(2)+2y=-4$

$2y=-4-6$

$y=-10/2=-5$

The solution of the system of equations is the point $(2,-5)$

8 0

3 years ago

a social media website began operating in 2003. the number of members using the website can be modeled by the exponential functi

ira [324]

Answer:

The website had 200 operating members at the end of 2003.

Step-by-step explanation:

5 0

3 years ago

How do you solve: Tori needed to take a taxi. The fare for

shepuryov [24]

Answer: The required number of miles rode is 4.6875.

Step-by-step explanation: We are given to solve the following situation for the value of d :

Tori needed to take a taxi. The fare for riding in a taxi is a $3 fixed charge and $0.80 per mile. The fare for a ride of d miles is $6.75.

According to the given information, we have

$3+0.80d=6.75\\\\\Rightarrow 0.80d=6.75-3\\\\\Rightarrow 0.80d=3.75\\\\\Rightarrow d=\dfrac{3.75}{0.80}\\\\\Rightarrow d=4.6875.$

Thus, the required number of miles rode is 4.6875.

6 0

3 years ago

What is the value of H in the triangle below

vodomira [7]

Answer:

not 100% sure but i think its 10

Step-by-step explanation:

sorry if its incorrect

6 0

3 years ago

A. the total area of the model is 130 m2. write an equation to find x.

enyata [817]

The complete question in the attached figure

we know that

[area of rectangle]=b*h
b=(x+2)
h=(2x+2)
Area=130 m²

then

130=(x+2)*(2x+2)--------> 2x²+2x+4x+4-130=0--------> 2x²+6x-126=0

the answer Part a)
the equation to find x is
[2x²+6x-126=0]

b.) solve the equation by completing the square

130=(x+2)*(2x+2)

using a graph tool
see the attached figure

the solution is
x=6.58 m

the answer Part b) is
(x + 2)(2x + 2) = 130; x = 6.58 m

6 0

3 years ago

Read 2 more answers