1. If A = 2x – 7x2 + 3 and B = 4x2 – 12x, what is A + B?

Answer:

use distance formula

Step-by-step explanation:

enter each set of points into distance formula, find distance then sum all sides

Answer:

A = 71.3 square inches

Step-by-step explanation:

31/4 · 46/5 = 713/10 or 71.3

as decimals you can multiply 7.75 x 9.2, which is 71.3

Answer:

Yes, the diagonals could be 6 and 7 in. In a parallelogram, only the opposite sides of the parallelogram are congruent.

Step-by-step explanation:

In a parallelogram, the diagonals bisect each other, so you can set the labeled segments equal to one another and then solve for . \displaystyle 20 - 3x = 2x - 4 \rightarrow 24 = 5x \rightarrow 4.8 = x. Then, substitute 4.8 for in each labeled segment to get a total of 11.2 for the diagonal length.

Answer:3

Step-by-step explanation:

Answer:

3 hours

Step-by-step explanation:

Answer:

always acute angle.as each angle is 60°

Answer:

First and third options are equivalent, second and fourth options are not equivalent.

Step-by-step explanation:

Remember the relation:

[tex]a^n*a^m = a^{n + m}[/tex]

and:

[tex](a^n)^m = a^{n*m}[/tex]

We have the expression:

[tex]7^{1/5}*49^{7/5}[/tex]

We know that 49 = 7*7

Then we can write the above relation as:

[tex]7^{1/5}*49^{7/5} = 7^{1/5}*(7^2)^{7/5}[/tex]

We can use the second relationship from the above ones and write this as:

[tex]7^{1/5}*(7^2)^{7/5} = 7^{1/5}*7^{2*7/5} = 7^{1/5}*7^{14/5}[/tex]

Now we can use the first relationship to get:

[tex]7^{1/5}*7^{14/5} = 7^{1/5 + 14/5} = 7^{15/5} = 7^3 = 343[/tex]

Then:

The first option is equivalent.

The second option is not equivalent

The third option is equivalent.

The fourth option is not equivalent.

y is a function of x, because for each input x there is only one output y. (It doesn't work backwards. x is not a function of y. not sure if you needed that but there it is!)

The equation would be

y=9.60x

where y is the amount Lin's sister earns and x is the amount of hours she works

i think this is correct pls mark brainliest

Answer:

S And T               N and Q

Step-by-step explanation:

Opposite

Answer:

umm

Step-by-step explanation:

Step-by-step explanation:

Answer:

if 100 came by in 2 hours 50 would come by in one hour

Step-by-step explanation:

split it it's by 2

If 100 came by in 2 hours then 50 would come by in one hour.

There is an independent quantity, and a quantity that depends on it (dependent quantity). When independent quantity moves by a unit measurement (single unit increment), the increment in dependent quantity is called the rate of increment of dependent quantity per unit increment in independent quantity.

We have been given 100 cars pass by in 2 hours​

We need to find the unit rate.

Total car = 100

Time = 2 hours

Unit rate = 100/2

Unit rate = 50

Therefore, the unit rate of 50 car in one hour.

To learn more about the unitary method, please visit the link given below;

brainly.com/question/23423168

#SPJ2

Answer:

32.85°

Step-by-step explanation:

Used a fancy calculator & just took a test like this

good luck, i hope this helps :)

Answer:

x = 32.8599

Step-by-step explanation:

you have the hypotenuse and the side adjacent to the angle, so you use

Cos(x) = adjacent/hypotenuse

so

Cos(x) = 21/25

x = cos^-1(21/25)

put this in a calculator:

x = 32.8599 (rounded)

Answer:

2

Step-by-step explanation:

The reciprocal of a number n is [tex]\frac{1}{n}[/tex]

Here n = 0.5, then reciprocal is

[tex]\frac{1}{0.5}[/tex] = 2

Answer: 476m²

Step-by-step explanation:

Find the area of the triangle and then subtract it from the area of the rectangle.

Area of triangle = 1/2 * base * height

= 1/2 * 8 * 6

= 24m²

Area of rectangle:

= Length * Width

= 25 * 20

= 500m²

Area not covered by garden:

= 500 - 24

= 476m²

Answer:

R V

1  9π in³ 

2  36π in³

3  81π in³

Step-by-step explanation:

For, r = 1

V = π(1)²9 = 9π in³

For, r = 2

V = π(2)²9 = 4*9π in³ = 36π in³

For r = 3

V = π(3)²9 = 9*9π in³ = 81π in

R V

1  9π in³ 

2  36π in³

3  81π in³

Answer:

3,174

Step-by-step explanation:

Answer: 3,174

Step-by-step explanation:

115^2-69^2= sqrt8464=92

100+92=whole leg=192

192*69=13248= whole area

69*92=6348

6348/2

=3174

Answer:

£75

Step-by-step explanation:

sum the parts of the ratio, 1 + 4 + 3 = 8 parts

Divide the amount by 8 to find the value of one part of the ratio

£200 ÷ 8 = £25 ← value of 1 part of the ratio, then

4 parts = 4 × £25 = £100 ← Luke's share

Thus

£100 - £25 = £75

Luke receives £75 more than Kevin

Answer:

x=16[tex]\sqrt{\\2\\}[/tex]

y= 16

Step-by-step explanation:

Since we know that this is a right triangle, all sides must add up to 180°.  This means that our unknown angle is 45°.  With two 45° angles, we know that side y must be 16 (the same as the other corresponding angle).  Once we know both legs, we can use Pythagorean Theorem to determine that the hypotenuse, or side x is =16[tex]\sqrt{2}[/tex]

Answer:

a) £105 300

b) £132 300

Step-by-step explanation:

a) 2700*39=105 300

b) 2700*49=132 300

Answer:

no

Step-by-step explanation:

im smart

Answer:

15

Step-by-step explanation: divide 10 by 6 the multiply the quotient by 9

Answer:

15

Step-by-step explanation:

6\2=3. 3x3=9 10/2=5 5x3=15

Answer:

Step-by-step explanation:

our triangle has one length:     3.76+1.7=5.46

                           another side: 1.36+1.1=2.46

                            last side:        7.1+5.1=12.20

Perimeter is=5.46+2.46+12.20=20.12 cm

Answer: I ate my dogs bone

Step-by-step explanation:

9514 1404 393

Answer:

  an = n + 1

Step-by-step explanation:

This arithmetic sequence has a first term of 2 and a common difference of ...

  3 - 2 = 1

The general term is ...

  an = a1 + d(n-1)

Using a1=2 and d=1, this is ...

  an = 2 +1(n -1)

  an = 2 + n - 1 . . . . . eliminate parentheses

  an = n + 1 . . . . . . . .collect terms

Answer:

She has 9 nickels, and 8 dimes.

Step-by-step explanation:

We know that she has a total of $1.25. We know that a nickel is $0.05, and that a dime is $0.10.

9x$0.05=$0.45

8x$0.10=$0.80

Answer:

9 nickels

8 dimes

Step-by-step explanation:

.05(n + 1) + .10n = 1.25

.05n + .05 + .10n = 1.25

.15n = 1.20

n = 1.2 / .15

n = 8

but there are 9 nickels because there is "one more nickel than dimes"