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Assoli18 [71]
3 years ago
9

Someone pls help me :((

Mathematics
1 answer:
ankoles [38]3 years ago
5 0

Answer:

They are both correct.

Step-by-step explanation:

4(-7)(-1) equals 28. 4(7) is also equal to 28, meaning that Josh is correct. 2 negatives equals a positive, so (-28)(-1) will also be 28. This means Evangelina is also correct.

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What system shows the correct numbers to multiply by the coefficients in order to eliminate y from the first two
Ann [662]

Answer:

3 (5x+2y = 0)

2 (2x – 3y = -19)

Step-by-step explanation:

5x+2y=0 (1)

2x-3y=-19 (2)

To eliminate y from the first two equation when applying the linear combination method

We will multiply y Equation (1) and (2) with 3 and 2 respectively so that the coefficients of y in the two equations +6 and -6 respectively

3(5x+2y=0)

2(2x-3y=-19)

We have,

15x+6y=0 (3)

4x-6y= -38 (4)

Add Equation (3) and (4)

19x=-38

x= -2

Substitute x= -2 into (1)

5x+2y=0

5(-2)+2y=0

-10+2y=0

-10= -2y

y=-10/-2

=5

y=5, x=-2

3 0
3 years ago
Please answer ASAP WILL GIVE BRAINIEST (PLEASE NO SPAM ANSWERS)
Alexeev081 [22]

There are 11 trains containing giraffes and 7 trains containing rabbits.

<h3>Equation</h3>

An equation is an expression used to show the relationship between two or more numbers and variables.

Let x represent the number of train with giraffes and y represent the number of train with rabbits.

Hence:

25x = 40y

25x - 40y = 0    (1)

Also:

25x + 40y > 500   (2)

From both equations:

A possible solution is x = 11, y = 7

There are 11 trains containing giraffes and 7 trains containing rabbits.

Find out more on Equation at: brainly.com/question/22688504

4 0
2 years ago
F(x) = square root 32x <br> g(x) = square root 2x
otez555 [7]

Given:

The two functions are:

f(x)=\sqrt{32x}

g(x)=\sqrt{2x}

To find:

The (f\cdot g)(x). Assume x\geq 0.

Solution:

We have,

f(x)=\sqrt{32x}

g(x)=\sqrt{2x}

Now,

(f\cdot g)(x)=f(x)\cdot g(x)

(f\cdot g)(x)=\sqrt{32x}\cdot \sqrt{2x}

(f\cdot g)(x)=\sqrt{32x\times 2x}

(f\cdot g)(x)=\sqrt{64x^2}

(f\cdot g)(x)=8x

Therefore, the correct option is A.

5 0
3 years ago
ABCD ~ QRST
slava [35]
The answer for this question is 4.
5 0
3 years ago
Read 2 more answers
Which ones do I choose
weeeeeb [17]
It should be B because is a minus is in front of something that is a negative they change to be positive

7 0
3 years ago
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