2 years ago

Select the expressions

Mathematics

2 answers:

natulia [17]2 years ago

4 0

I believe it is the first one that is correct

yuradex [85]2 years ago

3 0

40+35 is the answer of the Ixl question

You might be interested in

A function h(x)=-5/7x-3. By how much h(x) will decrease/increase, if x decreases by 21.

Fofino [41]

Answer:

increase by 15

Step-by-step explanation:

We know the rate of change of h(x) is given by the coefficient of x, -5/7. This means any change in x will be reflected as a change in h(x) by -5/7 times the amount of the change.

Here, we're talking about a change in x of -21, so the change in h(x) will be ...

(-5/7)·(-21) = 5·(21/7) = 15

The positive sign means the value of h(x) will increase by 15.

7 0

2 years ago

Albert mixes 10 grams of 15% sugar syrup and 25 grams of 10% sugar syrup. C What is the concentration of sugar in the mixture?

ser-zykov [4K]

Answer:

Step-by-step explanation:

Given :

10 grams of 15% sugar syrup;

25 grams of 10% sugar syrup

Therefore,

(10grams * (15/100)) + (25 grams * (10/100))

(10 * 0.15) + (25 * 0.1)

1.5 + 2.5

= 4 grams

4 0

2 years ago

I need a full explanation on -(i^2)<br> I know it equals 1, but how?

Oksanka [162]

I^2 is negative 1, but I see you have a negative sign there. So it is -(-1), which is 1.

7 0

2 years ago

What is the weight of a gallon of diesel?

Margarita [4]

Answer:

A gallon of diesel weighs 7 pounds.

Step-by-step explanation:

6 0

2 years ago

This table shows some values of an exponential function. x у 01.25 1 2.50 25 3 10 What is the function?

Helen [10]

Answer:

$y= 1.25(2)^{x}$

Step-by-step explanation:

$y= 1.25(2)^{x}$

For x=0

$y= 1.25(2)^{0} = 1.25$

For x=1

$y= 1.25(2)^{1} = 1.25(2)=2.5$

For x=2

$y= 1.25(2)^{2} = 1.25(4)=5$

For x=3

$y= 1.25(2)^{3} = 1.25(8)=10$

7 0

2 years ago