Pls help! I will mark brainliest!!!

Answer:

2/5x^9−2/25

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

First you would plug in the 4 and 1/2 in the x and y's places, making the expression (4 - 2 (1/2))*(4 + 2 (1/2). Then you solve (below).

(4 - 2 (1/2))*(4 + 2 (1/2)

(4 - 1)*(4 + 1)

(3)*(5)

15

Hope this helped! If you have any questions, feel free to message me :)

Answer:

X=1/2, -2/5

Step-by-step explanation:

Solve the equation for X by finding a, b, and c of the quadratic then applying the quadratic formula.

Answer:

:) :) :) :) :) :) :0

Step-by-step explanation:

2/5 and 1/2

Answer: C

Step-by-step explanation:

Answer:

10 Hours

Step-by-step explanation:

I believe the question is saying they rode for 8 days and of those 8 days they rode the whole 24 hours, so by that logic:

8 days x 24 hours: 192 Hours

192/18 people = 10.66

10.66 ~ 10 Hours

I hope this helped!

Answer:

Tn = -6 + (n - 1)(-4)

Step-by-step explanation:

The explicit formula is this: Tn = a + (n - 1)*(d), where 'a' is the first term and 'd' is the common difference.

The first term is given to you and that is -6.

The common difference is -4 because:

d = -10 - (-6)

d = -10 + 6

d = -4

Hence: Tn = -6 + (n - 1)(-4)

Answer:

-10p

Step-by-step explanation:

-4p+(-6p)            for me I like to think of the negative or subtraction sign                

                          overpowering the positive or addition sign

so in this case

-4p-6p

then since the variable p is the same -4-6 is -10

the end result is -10p

Answer:

-3x + y = 8 and 3y = 9x

Step-by-step explanation:

Answer: 0.66 or 66%? (34% decrease)

Step-by-step explanation: 21+13=34 and 100-34 is 66

Answer:

The first one 1.50 for 5oz

Step-by-step explanation:

Step-by-step explanation:

If it looks like this: < with a line under it then it's called a less than or equal to sign.

If it looks like this: > with a line under it then it's a greater than or equal to sign

Answer:

-3, -3/2, 0, 5, 11

Step-by-step explanation:

-3/2 = -1.5

-3, -3/2, 0, 5, 11

Answer:

-3, -3/2, 0, 5, 11

Step-by-step explanation:

Answer:

π radians

Step-by-step explanation:

The arc cos(- 1) in degrees is 180° and 180° = π radians

Answer:

10

x*(6/10)=6/70

x=6/70*10/6

x=1/7

11

x*2/8=6/32

x=6/32*8/2

x=3/4

12

x*1/5=1/15

x=1/15*5=1/3

13

x*1/7=1/14

x=1/14*7=1/2

14

x*1/2=1/4

x=1/4*2=1/2

15

x*2/5=14/45

x=14/45*5/2

x=7/9

Answer:

(21, 28)

Step-by-step explanation:

Multiply coordinates by 7.

Answer:

His answer is wrong.

Step-by-step explanation:

-4(6-R)=12  <-- Since R is negative, -4 times -R results in a positive so, 4R.

-24+4R=12

+24       +24

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

4R = 36

R= 9

Answer:

A

Step-by-step explanation:

Answer:

60 cm

Step-by-step explanation:

remember, the area of a triangle is found by

1/2 b h

or half of the base times the height

so using that plug in the values:

the base is made of two 5s;  2* 5 is 10 so the base is 10cm long

the height is 12cm

so

1/2 * 12 * 10

= 6 * 10

= 60

Answer:

I think its 60

Step-by-step explanation:

To find the area of a triangle you do (height x base) divided by 2

5+5=10

12 x 10 = 120

120 divided by 2 is 60

Answer:

c

Step-by-step explanation:

Answer:

416.8 pounds.

Step-by-step explanation:

The mean weight of the 28 bears at a zoo is 413 pounds.

The Total Weight of the 28 bears = Mean weight × number of bears

= 413 pounds × 28 bears

= 11564 pounds

Fuzzy the bear, whose weight is 434 pounds, and Wuzzy the bear, whose weight is 505 pounds, were added to the zoo.

This means the total number of bears

= 30 bears because two additional bears were added

What is the new mean of the weight of the bears at the zoo?

New Mean = 11564 pounds + 505 pounds + 434 pounds/30 bears

= 12503 pounds /30 bears

= 416.76666667 pounds

Approximately to the nearest tenth = 416.8 pounds.

Answer:

1. $13.78

2. 5.3lbs

3. $4.56

4. 30.44lbs

5. $32.07

Step-by-step explanation:

Simple addition and subtraction.

Answer:

its 60

Step-by-step explanation:

Answer:

A = 4 cm^2

Step-by-step explanation:

The area of a triangle is

A = 1/2 b*h

The base is 4 and the height is 2

A = 1/2 ( 4*2)

A = 1/2*8

A = 4 cm^2

Answer:

4

Step-by-step explanation:

A = BH/2

or Area = Base multiplied by Hieght divided by 2.

(b)4 x (h)2 = 8

8/2 = 4

Answer:

6.25 ft

Step-by-step explanation:

we can use similarity of triangles

[tex]\frac{h}{25}=\frac{5}{20}\\\\\frac{h}{25}=\frac{1}{4}\\\\h=\frac{25}{4}\\\\h=6.25[/tex]

Answer:

3/4

Step-by-step explanation:

Answer:

She got 3/4 of the test correct

Step-by-step explanation:

Answer:

The slope is -1/2

The slope is after the "y=" but before the "x" variable.

Answer:

Step-by-step explanation:

Given quadratic function is,

f(x) = (x + 6)(x - 3)

For x-intercept,

Substitute the value f(x) = 0.

(x + 6)(x - 3 = 0

x = 3, -6

So the x-intercepts will be,

(-6, 0) and (3, 0)

For y-intercept,

Substitute the value for x = 0,

f(0) = (0 + 6)(0 - 3)

     = -18

Therefore, y-intercept of the given quadratic function will be (0, -18).

Answer:

X = 4, x = -10

Step-by-step explanation:

Solve for x by finding a, b, and c.

Answer:

C

Step-by-step explanation:

plug in the numbers into x and it will give you the answer.