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3 years ago

-10x + 4y = -10 3x + 4y = 29 Using elimination or substitution method

Mathematics

2 answers:

Svetach [21]3 years ago

6 0

I got (3,5) if that’s what your looking for

ira [324]3 years ago

5 0

Answer:

x=3, y=5

Step-by-step explanation:

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f(x)=8−4x−x3 g(x)=x2+7x−9 Find f(x)+g(x). Select one: a. x3+x2+3x−1 b. −x3+x+3x−1 c. −x3+x2+11x−9 d. 8x2+3x−9x3

vovangra [49]

Answer:

Step-by-step explanation:

We are given the two functions:

$f(x) = 8 - 4x - x^3\text{ and } g(x) = x^2 + 7x - 9$

And we want to find:

$f(x) + g(x)$

Substitute:

$= (8 - 4x - x^3) + (x^2 + 7x - 9)$

Rewrite:

$= (-x^3) + (x^2) + (7x - 4x) + (8 - 9)$

Combine like terms:

$= -x^3 + x^2 +3x -1$

In conclusion:

$f(x) + g(x) = -x^3 + x^2 +3x -1$

Hence, our answer is B.

7 0

3 years ago

What would be Kelly’s weight be in newtons if her mass is 70 kilograms?Select one of the options below as your answer:A. 70 × gB

BARSIC [14]

The formula for getting the weight is W=mg where m is the mass, g is the acceleration due to gravity (9.806 m/s^2) and W is the weight in Newtons.

W=mg
W=70*9.806=686.42 N

The answer is A. 70xg (where g=acceleration due to gravity)

7 0

3 years ago

Read 2 more answers

Someone please help me with this

tatiyna

B similar AA criteria
there are two angles that measure the same and according to the AA criteria that means the two triangles are similar.

6 0

4 years ago

A watercolor painting is 22 inches long by 8 inches wide. Ramon makes a border around the watercolor painting by making a mat th

Anuta_ua [19.1K]

Answer:

207 inches

Step-by-step explanation:

23*9=207

8 0

3 years ago

Read 2 more answers

Mary is flying a kite and has let out 50 yards of kite string. Mary’s kite is directly above Erika.

ch4aika [34]

The distance of Erika from kite directly is 35.71 yards

Step-by-step explanation:

Considering the given situation as a right triangle with string as hypotenuse and the distance between both girls as base

So,

$h = 50\ yards\\b = 35\ yards$

As the triangle is a right triangle, we can use pythagoras theorem to solve this problem.

$h^2 = b^2 + p^2\\p^2 = h^2 - b^2\\p^2 = (50)^2 - (35)^2\\p^2 = 2500-1225\\p^2 = 1275\\\sqrt{p^2} = \sqrt{1275}\\p = 35.707\ yards$

Rounding off to nearest hundredth

=> 35.71 yards

Hence,

The distance of Erika from kite directly is 35.71 yards

Keywords: Triangle, Pythagoras

Learn more about triangle at:

#LearnwithBrainly

3 0

3 years ago