HELP ASAP, BIG TEST!
When f(c)= 10x^2 + 3x -4, evaluate f(-4)

Answer:

80-50x

Step-by-step explanation:

Answer:

30

.... just use a calculator

Answer:

Step-by-step explanation:

.77

Answer:

0.77

Step-by-step explanation:

It goes on and on most people but just say 0.77

Answer:

4th one please give me brainliest

Step-by-step explanation:

Answer:

4.5 in. is equivalent to 337.5 ft.

Step-by-step explanation:

The given parameters are;

The scale of the scale map is 2 in. to 150 ft.

The measured length on the scale map = 4.5 inches

The actual distance of the location is given as follows;

2 in. is equivalent to 150 ft.

Therefore;

1 in. is equivalent to 150 ft./2 = 75 ft.

4.5 in. will be equivalent to 4.5 × 75 ft. = 337.5 ft.

4.5 in. will be equivalent to 337.5 ft.

Answer: 2x - 4y = -1

Step 1: Move the variable.

2x - 4y = 4y - 1 - 4y

Step 2: Remove the opposites.

2x - 4y = -1

Answer = 2x - 4y = -1

Hope this helps!

Answer:

2x - 4y = -1

Step-by-step explanation:

Ax + By + C

A = 2

B = -4

C = -1

Answer:

-7x-3

Step-by-step explanation:

Step-by-step explanation:

x−5(x+1)−3x+2

Distribute:

=x+(−5)(x)+(−5)(1)+−3x+2

=x+−5x+−5+−3x+2

Combine Like Terms:

=x+−5x+−5+−3x+2

=(x+−5x+−3x)+(−5+2)

=−7x+−3

Answer:

=−7x−3

Answer:

one group has 12. one has 16. 12 + 16 = 28. 16 is 4 more than 12

Answer:

Step-by-step explanation:

1. -10+18+6=8+6=14

2. -1+84=83

3. -2×(−6)2 +7=12×2+7=24+7=31

4. 50-(−6)2 +(−8)=50+12-8=62-8=54

5. (-2+2)× (−3)3=0× (−3)3=0

6. 30+8-42=38-42=-4

7. -9-2-1=-12

8. -32+6+6=-20

9. -10×3÷5+9=-30÷5+9=-6+9=3

10. -24÷ 8 + 33=-3+33=30

Answer:

v, z, w, x

let the letter become the angle opposite of them.

Ah yes. The pictures are below. Let me know in comments if you can see the pics.

Answer:

28/8=3.50

Step-by-step explanation:3.50 per pear.

Answer: 2/8

Step-by-step explanation:

Given :

The equation below can be used to determine I (simple interest) on a loan as follows :

[tex]I=Prt[/tex] ...(1)

P is principal, r the rate of the loan,  t is the length of the loan in years.

We need to find the equation to solve in terms of r. We can find the value of P.

Dividing both sides of equation (1) by rt. So,

[tex]\dfrac{I}{rt}=\dfrac{Prt}{rt}\\\\P=\dfrac{I}{rt}[/tex]

So, P can be solved as : [tex]P=\dfrac{I}{rt}[/tex].

Answer:

k = 28/7 which equals 4

Step-by-step explanation:

1/2k + 6 = 4k - 8

1/2k - 4k = -8 - 6

1/2k - 8/2k = -14

-7/2k = -14

k = -14 * - 2/7

k = 28/7 which equals 4

Answer:

k=-7/4 or -1.75

Step-by-step explanation:

Answer:

162 is greater than 130.. if that's what your are talking about..

Answer:

x = 5

I hope this helps!

========================================================

Explanation:

Consider a triangle with side lengths a,b,c such that a < b < c

a = 3 and b = 19 are the two known sides

Let c be the missing side length

The missing side has the property that...

b-a < c < b+a

19-3 < c < 19+3

16 < c < 22

Meaning that if c is a whole number then it can take on any of these values {17, 18, 19, 20, 21}

So c = 21 is the largest possible third side, where only whole number sides are considered.

We can't have a third side of 22 because the two other sides add to a+b = 3+19 = 22 and a triangle wouldn't form (instead only a straight line would). I recommend cutting out strings of paper trying this out yourself.

---------------

Side note: The inequality b-a < c < b+a is a variation of the triangle inequality theorem.

There is no graph or further explanation for a question to answer

Answer:

467 000 000

Step-by-step explanation:

4.67e-8 is rewritten as 4.67 x 10^-8.

Negative -> decimal with lots of places, Positive -> big, big number

Move the decimal place right 8 times so you end up with a small decimal.

4.67 -> 467000000

Answer:

y = (2/3)x - 1

Step-by-step explanation:

By refering the graph, we can see that y-intercept(b) = (a point of the y-axis) which is -1.

the coordiates i have taken:

(-3 , -3) ------ (-3 =x1, -3 =y1)

and

( 3, 1 ) --------( 3 = x2, 1 = y2)

To find slope,

slope(m) = rise/run = ( y2 - y1 ) / ( x1 - x2 )

=> ( 1 - (-3) ) / ( 3 - (-3) ) -----( negative × negative = positive. Hence the signs are positive. )

=> ( 1 + 3 ) / ( 3 + 3 )

=> 4 / 6

=> 2 / 3 ------(simplied after numerator and denominator got divided by 2)

now,

b = -1

m = 2/3

x = x ----(x remains same)

Therefore,

y=> mx + b

by substituting the values, we get,

y=> (2/3)x - 1

Answer:

Zelie should have divided both numbers by 14

Step-by-step explanation:

Given

[tex]Actual = 28[/tex]

[tex]Measured = 14[/tex]

Required

Spot and correct Zelie's mistake

[tex]Zelie = \frac{28 - 7}{14 - 7} = \frac{21}{7}[/tex]

Scale is calculated as:

[tex]Actual = Measured * Scale[/tex]

[tex]28 = 14 * Scale[/tex]

Divide 28 and 14 by 14

[tex]28/14 = 14/14 * Scale[/tex]

[tex]2 = 1 * Scale[/tex]

[tex]2 =Scale[/tex]

[tex]Scale = 2[/tex]

Notice at this point:

[tex]28/14 = 14/14 * Scale[/tex]

Both sides were divided by 14.

Hence, option A answers the question.

Answer:

A. Zelie should have divided both numbers by 14.

Explanation:

I took the quiz and got it right.

Hope this Helps!

Distance will be the hypotenuse of a right triangle.

Distance^2 = 3^2 + 4^2 = 9 + 16 = 25

Distance = 5 km

There are 2 overlapping triangles here. If the vertical lines are parallel, then these triangles are similar, and corresponding sides occur in a fixed ratio. In particular, we have

2/3 = (2 + x) / (3 + (x + 7))

Solve for x :

2/3 = (2 + x) / (10 + x)

2 (10 + x) = 3 (2 + x)

20 + 2x = 6 + 3x

14 = x

Answer:

i think its the first one

Step-by-step explanation:

Answer: The answer has to be

d. t and u

Step-by-step explanation:

Answer:

[tex]2^{14}[/tex] is the answer. Hope this helped!!

Step-by-step explanation: