Ask question

Ask question

All categories

3 years ago

10

Help me with these two

2 answers:

azamat3 years ago

8 0

Substituting 5 for the variable x will produce 75, which is greater than 65. Substituting 6 for the variable x will produce 90, which is greater than 65. Substituting 7 for the variable x will produce 105, which is greater than 65.

slavikrds [6]3 years ago

7 0

To find the answer of the first one, plug in numbers for x, and see if they make the inequality true. Like, 5, 6, and 7.

For the second one, add 13 to both sides. The answer is 21.

You might be interested in

Is (4,2) a solution of the system y=x-2 and y=3x+4

babunello [35]

Answer:

False

Step-by-step explanation:

y=x-2 y=3x+4

Substitute the point into both equations and see if it is true

2=4-2

2=2 true

and

2=3*4+4

2 = 12+4

2 =16

False

It is not a solution

4 0

3 years ago

Read 2 more answers

F(x)=-9x^2-2x and g(x)=3x^2+6x-9, find (f-g)(x) and (f-g)(-4)

Sergio039 [100]

Answer:

$(f-g)(x) = -12x^{2} - 8x + 9$

(f-g)(-4) = -151

Step-by-step explanation:

To find f-g(x) we subtract the common terms. So

$f(x) = -9x^{2} - 2x$

$g(x) = 3x^{2} + 6x - 9$

(f-g)(x)

$(f-g)(x) = f(x) - g(x) = -9x^{2} - 2x - (3x^{2} + 6x - 9) = -9x^{2} - 2x - 3x^{2} - 6x + 9 = (-9 - 3)x^{2} + (-2 - 6)x + 9 = -12x^{2} - 8x + 9$

(f-g)(-4)

$(f-g)(x) = -12x^{2} - 8x + 9$

We replace x by -4

$(f-g)(-4) = -12(-4)^{2} - 8(4) + 9= -151$

(f-g)(-4) = -151

5 0

3 years ago

I feel like crying! why is math so hard???

Sladkaya [172]

Answer:

honestly wish math would just jump off the planet with that fancy ole brown necklace we call a rope.

4 0

3 years ago

Read 2 more answers

Help me with this math question please I'm giving away brainliests

m_a_m_a [10]

Horizontal- y=-1/2
vertical- x=5
x intercepts- (-2,0)
y intercepts- none
hole- (0, 1/5)

6 0

3 years ago

5.Last year, Terry earned $19,436. This year, Terry got a raise that increased her income to $23,457. a. How much more money did

ivann1987 [24]

23,457 - 19,436 = 4,021

23,457 + 4,021 = 27,478

total income next year - 27,478

6 0

3 years ago

Read 2 more answers