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2 years ago

5c + d for C= 4 and d = 7

Mathematics

2 answers:

dangina [55]2 years ago

6 0

Answer:

Step-by-step explanation:

marin [14]2 years ago

4 0

Answer:

27 would be your anwser please mark brainluest i need it thank you so much

Step-by-step explanation:

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If y varies directly as the x^2 and y =200 when x =5 ,What is the value of y when x =-3

PtichkaEL [24]

The answer you want would be -120

b/c 200/5 is 40 so -3*40 is -120

6 0

3 years ago

Read 2 more answers

What is the slope between the points (5,-4) and (-3,4) -1 4 0 1

kumpel [21]

Answer:

The answer is -1.

Step-by-step explanation:

You have to apply gradient formula :

$m = \frac{y2 - y1}{x2 - x1}$

So you will have to substitute the coordinates into the equation. Let (x1,y1) be (-3,4) and (x2,y2) be (5,-4) :

$m = \frac{ - 4 - 4}{5 - ( - 3)}$

$m = \frac{ - 8}{8}$

$m = - 1$

6 0

2 years ago

Select the two values of x that are roots of this equation.

makkiz [27]

Answer:

$\implies x = (-2) \qquad or\qquad x = \dfrac{-3}{2}$

Step-by-step explanation:

Given :-

A quadratic equation is given to us.
The equation is 2x² + 7x +6=0

And we need to find out the roots of the given equation. We can use the middle term splitting method to find out the roots as ,

Given equation :-

$\implies 2x^2 + 7x +6=0$

Step 1: Find out the factors of 12 :-

We will choose the two factors such that their sum equals to the coefficient of x i.e. 7 .The factors are , 1×12 , 2×6 , 3×4 .

And 3 + 4 = 7. So we will break the middle term into 3x and 4x .

Step 2 : Breaking the middle term :-

$\implies 2x^2 + 3x+4x +6=0$

Step 3: Take out common from terms :-

$\implies x(2x + 3) +2(2x +3)=0$

$\implies ( x +2)(2x+3)=0$

Step 4 : Equate them with 0 :-

$\implies x = (-2) \qquad or\qquad x = \dfrac{-3}{2}$

Hence the correct options are C and D .

5 0

2 years ago

The areas of two similar octagons are 4 m² and 9 m². What is the scale factor of their side lengths? PLZ PLZ HELP PLZ

Sergeu [11.5K]

Answer:

2 :3

Step-by-step explanation:

To take the scale factor from the area to length we take the square root of each

sqrt(4) : sqrt(9)

2 :3

5 0

3 years ago

Can you help me please

Murljashka [212]

Jose has 21 cookies left over

4 0

3 years ago