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Zielflug [23.3K]
3 years ago
13

Plss plss help asap!!!

Mathematics
1 answer:
DerKrebs [107]3 years ago
3 0

Answer:

f(x) =  - 2x + 7 \\ f( - 5) =  - 2( - 5) + 7 \\ f( - 5) =  + 17

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NEED HELP PLEASEEEE!
vladimir1956 [14]

Answer:

181.76

Step-by-step explanation:

The calculator gave me this answer

5 0
4 years ago
ՎԼ ԱԾաղba Su<br> 42x-1=64<br> Solve for x
denpristay [2]

Answer:

x=1.55

Step-by-step explanation:

42x-1=64

     +1   +1

42x= 65

/42    /42

x= 1.55 (rounded)

5 0
3 years ago
How to substitute 3x+3y=-3 and y=5x-1?
schepotkina [342]
Since y = 5x-1, we can fill it into 3x + 3y = -3. First, let's look at relating to a simpler equation. Let's say that x + y = 9 and y = 3 + 5. Now, we can fill it in to get that x + (3 + 5) = 9. Now, we know that 3+5 is 8, so x + 8 = 9. Now, x = 1. Likewise, we can do the same. For 3x + 3y = -3, all we need to do is to switch the y in 3x + 3y = -3 with 5x - 1. So it would become 3x + 3(5x - 1) = -3. Now we distribute to get 3x + 15x - 3 = -3. Now add three to both sides to get 3x + 15x = 0. Now simplify to get 18x = 0. Now we know that x = 0. Now fill x into y = 5x - 1. So y = 5(0) - 1. Now we know that y = -1.

To check fill in the answer to 3x + 3y = -3.
3(0) + 3(-1) = -3
 0 + (-3) = -3
0 - 3 = -3
-3 = -3
Now that our check is completed we now know that x is 0 and y is -1.
7 0
4 years ago
In the figure above, AB is tangent to the circle with center o at point A.
Inessa [10]

<u>Given</u>:

Given that O is the center of the circle.

AB is tangent to the circle.

The measure of ∠AOB is 68° and we know that the tangent meets the circle at 90°

We need to determine the measure of ∠ABO.

<u>Measure of ∠ABO:</u>

The measure of ∠ABO can be determined using the triangle sum property.

Applying the property, we have;

\angle ABO+\angle BAO+\angle AOB=180^{\circ}

Substituting the values, we get;

\angle ABO+90^{\circ}+68^{\circ}=180^{\circ}

Simplifying, we get;

\angle ABO+158^{\circ}=180^{\circ}

          \angle ABO=22^{\circ}

Thus, the measure of ∠ABO is 22°

4 0
4 years ago
Can someone help me please
Misha Larkins [42]

Answer:

-28

Step-by-step explanation:

4 0
3 years ago
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