Hi! I have an math exam tomorrow and I really need you guys help.
[tex] \frac{1}{2} - \frac{2}{2} - \frac{4}{2} + ... + \frac{39}{2} + \frac{40}{2} [/tex]
please help!​

Answers

Answer 1
I think the answer is 37

Related Questions

I NEED HELP PLSSS

Given QUAD is a quadrilateral,
find the value of x.
If the answer is 14, move to J
If the answer is 30, move to L
If the answer is 23, move to K
If the answer is 21.4, move to M

Answers

Answer:

=>(4x+14)+(5x-1)+(4x-5)+(2x+7) = 360°

=>4x + 14 + 5x - 1 + 4x - 5 + 2x +7 = 360°

=>15x + 15° = 360°

=>15x = 360°- 15°

=>x = 345/15

=>x = 23

So move to K

if x is an even integer and y=-3 , which statement describes the sum of x and y ?

a) the sum and x and y is a rational number

b) the sum of x and y is an irrational number

c) the sum of x and y is not a integer

d) the sum of x and y may be a rational number or an irrational number

Answers

Answer: (A). The sum of cans his a rational number

Step-by-step explanation: natural smart

6. Use the distributive property to find two expressions
that are equivalent to 7(3x - 4).

Answers

Answer:

21x-28

Step-by-step explanation:

what is 15.4+5.4 its very hard for me to learn after all home school​

Answers

Answer:

15.4+5.4=20.8

Answer: 20.8

Step-by-step explanation: Use Long addition to Evaluate

Have a brilliant day mate - your friend Lily ^_^

Find the domain and range of the function:
fx) = -√5-x-3
Domain:
Range:
DONE

Answers

Answer:

Domain: [tex]x\leq 2[/tex]

Range: (∞,0)

Step-by-step explanation:

A=0/66,b=0/066,c=2/3,d60% what is the probability that d will land on tails​

Answers

Have to answer something sorry
0.6

ANSWER THIS PLZZZZZZ!!!!!!

Answers

I’m pretty sure it’s C.

Halp aspp


give brialest​

Answers

Answer:

Cant see the full photo {error}

sin 68 = 70/w

find w

Answers

Answer:

sin 68 =70/w

sin68(w)=70

0.927w=70

w=70/0.927

w=75.51

do help me please with questio

Answers

Answer:

A=πr2=π·112≈380.13271

Step-by-step explanation:

Answer:

area=(3.14)(11^2)= 379.94

Step-by-step explanation:

Tyrone ran the 100-meter race 3 times. His fastest time was 10.84 seconds. His slowest time was 13.52 seconds. If Tyrone's average time was 12.0 seconds, what was his time for the third race? *​

Answers

Answer:

The third time = 11.64 seconds

Step-by-step explanation:

Let the average time be x

The average of a set of numbers is the sum of the numbers divided by the number of terms. In this case:

Average = (10.84 + 13.52 + x) ÷ 3 = 12.0

[tex]\frac{10.84\ + 13.52\ + x}{3}= 12.0\\\frac{24.36\ +\ x}{3} = 12.0\\cross-multiplying\\24.36\ +\ x = 3 \times 12.0\\24.36\ +\ x = 36\\x = 36 - 24.36\\x = 11.64\ seconds[/tex]

5. Evaluate f(x) = 2x – 7 at the given value. f(4)=?

Answers

Answer:

f(5) = 14

Step-by-step explanation:

Just replace the variable "x" with "5":

f(5) = 2×5 + 4 = 14

Answer:

1

Step-by-step explanation:

Since the value of x is 4 ( because four is in the position of x) you would plug in 4 into he equation.

2(4) = 8

Then 8 - 7 = 1

F(4) is 1

Therefore, your final answer is 1.


how to solve this question

Answers

Answer: all i know is that these people are walking on some glowing-red-hot bearings

Step-by-step explanation:

Myers has 3/5 of cake. She divides the cake among 7 children. How much of the cake will each child get

Answers

Answer:

Step-by-step explanation:

3/5/7=3/35

Which expression is equivalent to 0.17w + 0.77 + w?

Answers

Answer:

0.77 + 1.17w I believe

Step-by-step explanation:

I am absolutely sorry if it's wrong.

Help neeed help please

Answers

reflection and translation.

Given:

The different transformation in the options.

To find:

The transformation that would result in the perimeter of a triangle being different from the perimeter of its image.

Solution:

In option 1,

[tex](x,y)\to (y,x)[/tex]

It represents reflection across the line y=x.

In option 2,

[tex](x,y)\to (x,-y)[/tex]

It represents reflection across the x-axis.

In option 3,

[tex](x,y)\to (4x,4y)[/tex]

It represents dilation by scale factor 4 and the center of dilation is at origin.

In option 4,

[tex](x,y)\to (x+2,y-5)[/tex]

It represents translation 2 units right and 5 units down.

We know that the reflection and translation are rigid transformations, It means the size and shape of the figure remains the same after transformation.

So, the perimeter of the figure and its image are same in the case of reflection and translation.

But dilation is not a rigid transformation. In dilation, the figure is similar to its image. So, the perimeter of the figure and its image are different in the case of dilation.

Therefore, the correct option is 3.

25 Patricia bought 5 apples and 7 bananas for $12.65. Jose bought 10 apples and 8 bananas for $18.10 at the same grocery store. What is the cost of one apple?​

Answers

Answer:

Apple cost $0.85

Banana cost $1.2

Step-by-step explanation:

Given data

let the number of apples be x

and the number of bananas be y

Patricia bought 5 apples and 7 bananas for $12.65

5x+7y= 12.65----------1

Jose bought 10 apples and 8 bananas for $18.10

10x+8y= 18.10-----------2

solve 1 and 2 above

5x+7y= 12.65 X 2

10x+8y= 18.10 X 1

 10x+14y= 25.3

- 10x+8y= 18.10

         6y= 7.2

y= 7.2/6

y= 1.2

put y= 1.2 in 1

5x+7(1.2)= 12.65

5x+ 8.4= 12.65

5x= 12.65- 8.4

5x= 4.25

x= 4.25/5

x= 0.85

Hence each apple cost $0.85

Banana cost $1.2

What is the sixth number in the Fibonacci sequence with the first two numbers 1 and 4?

Answers

Answer:

23

Step-by-step explanation:

1 + 4 = 5 so we get 1 4 5

then 4+5 = 9, 1 4 5 9

5+9 = 14, 1 4 5 9 14

9+14 = 23, so

1 4 5 9 14 23

23 is the 6th number in this sequence

The sixth number in the Fibonacci sequence with the first two numbers 1 and 4 is 23 and this can be determined by using the arithmetic operations.

Given :

Fibonacci sequence with the first two numbers 1 and 4.

The following steps can be used to determine the sixth number in the Fibonacci sequence:

Step 1 - If the first two numbers in the Fibonacci sequence is 1 and 4 then the third number is:

= 1 + 4

= 5

Step 2 - The Fourth number in the Fibonacci sequence is:

= 4 + 5

= 9

Step 3 - The Fifth number in the Fibonacci sequence is:

= 5 + 9

= 14

Step 4 - The Sixth number in the Fibonacci sequence is:

= 9 + 14

= 23

So, the sixth number in the Fibonacci sequence with the first two numbers 1 and 4 is 23.

For more information, refer to the link given below:

https://brainly.com/question/20595275

State whether the given point is a solution to the system of equations.

Answers

Answer: What is the best way to determine whether a given point is a solution to a system of equations? If you are asked if a point is a solution to an equation, we replace the variables with the given values and see if the 2 sides of the equation are equal (so is a solution), or not equal (so not a solution). ... So, we test the point in both equations.  Where is the solution of a system of equations? The solution to a system of linear equations is the point which lies on both lines. In other words, the solution is the point where the two lines intersect

FIND BC
round to the nearest HUNDREDTH ​

Answers

Answer:

CB = 30.15

Step-by-step explanation:

180-58-93 = 29 degrees for angle B

draw a line perpendicular to BC down to point A, lets call the perpendicular point D.

now you've got 2 similar, smaller triangles

angle A is split into two angles, 29 degrees above and 58 degrees below.

sin 29 =CD/16

CD = 7.75

cos 29 = AD/16

AD = 14

tan 58 =DB/AD = DB/14

DB = 22.40

CD + DB = 7.75 + 22.40 = 30.15

Please answer this asap!!

Answers

Answer:

radius is 13 cm❣️❣️❤️

What is the answer to -1 3/8 ÷ (-1 4/7) ??

Answers

]0.875 hope this helps

Answer: 7/8

Step-by-step explanation:

keep, change, flip and it going to be a positive because both are them are negative

define geometric relationship​

Answers

Answer:

Geometric relationships control the orientation of an element with respect to another element or reference plane. For example, you can define a tangent relationship between a line and an arc. ... For example, a connect relationship and a tangent relationship can be used where an arc meets a line. (make me brainliest)

Websites funky rn but In the zoo, there are 12 elephants, 8 giraffes, 9 lions, 10 seals, and 16 otters.
What is the ratio of elephants to all the animals at the zoo?

Answers

Answer:

12:55

Step-by-step explanation:

12 + 8+ 9 + 10 + 16 = 55

good luck, i hope this helps :)

Answer:

12/55

Step-by-step explanation:


Linda is paid double her normal hourly rate for each hour she works over 40 hours in a week. Last
week she worked 52 hours and earned $544. What is her hourly pay?

Answers

Answer:

her hourly pay is £8.50

Step-by-step explanation:

h= hourly pay

n = number of hours worked over 40 hours in a week

week pay = 40h + (n x 2 x h)

544 = 40h + 2nh

52 - 40 = 12, so n = 12

544 = 40h + 2 x 12 x h

544 = 40h + 24h

544 = 64h

544/64 = 8.5 h=8.5 (£8.50)

just to check:

£8.50 x 40 = £340

£8.50 x 2 x 12 = 204

340 + 204 = 544 yayy the answer is correct

hope this helps x

plzzz can i hv brainliest

indico qué clase decimal resulta al hacer la división ​

Answers

1.) 3/5 = 0.6
2.) 4/6 = 2/3 = 0.666667

PLSPSPSLS HELP MATHHH GRADE 5-6

Answers

median: 80
lower quartile: 65
upper quartile: 95

9 + 4b = 17
I need this question quick lol

Answers

Answer:

hey

b = 2

Step-by-step explanation:

Let's solve your equation step-by-step.

9+4b=17

Step 1: Simplify both sides of the equation.

4b+9=17

Step 2: Subtract 9 from both sides.

4b+9−9=17−9

4b=8

Step 3: Divide both sides

Write the coefficient of x in

Answers

Answer:a

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The coefficient is the constant in front of the variable.

Bao is taking a multiple choice test with a total of 100 points available. Each question
is worth exactly 2 points. What would be Bao's test score (out of 100) if she got 8
questions wrong? What would be her score if she got x questions wrong?

Answers

Answer:

84

Step-by-step explanation:

100-point test = 50 questions which are worth 2-points each.

(50 x 2 = 100)

If she got 8 wrong, this means she lost 16 points ( 8 questions x 2 points each = 16 points in total)

100 - 16 = 84

To find her score if she got x questions wrong just multiply x by 2 and subtract the answer to 100.

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