if f (x) = -x - 7 what is f (-3)
Plz help

Answers

Answer 1

Answer:

f(-3) = -4

Step-by-step explanation:

f(-3) = -(-3) - 7

      = 3 - 7

      = -4


Related Questions

the perimeter a rectangle is 46 in if the width of the rectangle is 9 inches what is the length ​

Answers

The length of the rectangle is 14

steps:

9 + 9 = 18

46 - 18 = 28

28 ÷ 2 = 14

Mark said he can decompose five six into three fractions with three different numerators and the same denominator is this possible explain

Answers

Answer:

1/6 ; 2/6 ; 2/6

Step-by-step explanation:

To split 5/6 into. 3 different fractions with the same denominator and different numerator values;

The integer value of the numerator 5 can be divided into 3 different whole Number values ;

It could be :

5 = 3 + 1 + 1

5 = 2 + 2 + 1

Hence, we could have ;

3/6 +. 1/6 + 1/6

Or

2/6 + 2/6 + 1/3

Which equation has infinite solutions for x?

Answers

Answer:

Equation 3

Step-by-step explanation:

Answer below........

Answers

ans: 70 ...( it is by ; 180-110) because of straight angle= 180...........

Please help with math ASAP, will give brainliest!!

Answers

Answer:

45

60

135

150

Step-by-step explanation:

Remember:

1 radian is 57.3 degrees

hannah is making jewlery for an Arts and Crafts show. She would like to make at least $120 in sales. She only made 40 pieces of jewlery. The earrings that she is selling cost $3 and the necklaces $6.

Answers

Answer:

she could make 40 earrings or 20 necklaces

Step-by-step explanation:

× + 2 + 2x + 3 = 4x PLS HELP ME ​

Answers

Answer: 8

Step-by-step explanation:

Answer:

I dont know what your supposed to do but i can tell you that x = 5 because if you simplify the equation you get 3x + 5 = 4x. Using this you can infer that a single x is equivalent to 5 since you need 5 to get from 3x to 4x.

Two trains leave stations 520 miles apart at the same time and travel toward each other. One train travels at 110 miles
per hour while the other travels at 90 miles per hour. How long will it take for the two trains to meet?
Do not do any rounding.

Answers

Answer:

They wont meet

Step-by-step explanation:

The one going 110 will pass before the other one can reach it.

Please mark me the brainliest, 5 stars, and a thanks! Have a great day!

It will take 2.6 hours (or 2 hours and 36 minutes) long for the two trains to meet when Two trains leave stations 520 miles apart at the same time and travel toward each other.

To find the time it will take for the two trains to meet, we can use the concept of relative speed.

The two trains are traveling towards each other, so their speeds add up. The combined speed of the two trains is:

110 mph + 90 mph = 200 mph

To determine the time it will take for the trains to meet, we can divide the total distance they need to cover (520 miles) by their combined speed (200 mph):

Time = Distance / Speed

Time = 520 miles / 200 mph

Time = 2.6 hours

Therefore, it will take 2.6 hours (or 2 hours and 36 minutes) for the two trains to meet.

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Does the following represent a function?

Answers

Answer:

No

Explanation:

The x and y values are not constant, therefore, the values in the table do not represent and function

3. 5x² + 13x = -6 * SHOW WORK *

Answers

for solving steps use photomath

2 /8 The Math Club’s spring banquet was a huge success, and Ray and Aletha are calculating the tip. The total bill was $360. What is the amount of tip that Ray and Aletha if they leave a 20% tip? $50 $542 $72 $56

Answers

Answer:

$72

Step-by-step explanation:

im guessing

The surface area of a sphere is π sq.cm. If its radius is
doubled by,how much is its surface area increased ?​

Answers

Answer:

hope it helps..........

95 is 5% of what number

Answers

1,900 I think, I hope this helps

Answer:

1900 that's what was right for me.

Step-by-step explanation:

What is 11.69517 rounded to the nearest thousandth?

Answers

The given number 11.69517 rounded to the nearest thousandth is 11.695.

What is the rounding off the number?

Rounding off a number means approximating it to a certain degree of accuracy by replacing it with another number that is nearly equal to it but has a shorter, simpler, or more explicit representation.

To round 11.69517 to the nearest thousandth, we look at the digit in the fourth decimal place, which is 5. Since 5 is greater than or equal to 5, we round up the digit in the third decimal place (9) by adding 1 to it. Therefore, 11.69517 rounded to the nearest thousandth is 11.695.

Hence, the given number 11.69517 rounded to the nearest thousandth is 11.695.

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Answer:

11.695

Step-by-step explanation:

A circular garden has a diameter of 6 yards. What is the area of the garden? Use 3.14 for n. O A. 113.04 yd? O B. 14.13 yd? O C. 28.26 yd? O D. 18.84 yd2​

Answers

Answer:

the answer is 28.26.I hope you like it

help please i dont no

Answers

The answer would be 24 glasses because you do 8 x 3 and you get 24

Solve this system of equations
3x+4y=36
y= -1/2x+8

x=
y=

Answers

Answer:

x = 4

y = 6

Step-by-step explanation:

3x + 4y = 36

3x + 4(-1/2x + 8) = 36

3x - 2x + 32 = 36

x + 32 = 36

x + 32 - 32 = 36 - 32

x = 4

y = -1/2x + 8

y = -1/2(4) + 8

y = -2 + 8

y = 6

triangle not drawn to scale
5 units
4 units
8 units
11 units
What kind of triangle is this?
O A.
isosceles triangle
OB. right triangle
OC. equilateral triangle
OD
scalene triangle

Answers

Answer:

D. scalene triangle

Step-by-step explanation:

This triangle has sides that all have different lengths. Therefore, this triangle is a scalene triangle.

Tips:

Isosceles triangle - two sides have equal lengths

Equilateral triangle - all three sides have equal lengths

I hope this helped! :)

Help needed quickly, have to turn in, in 19 minutes

Answers

Answer:

angles F and G are supplementary

Step-by-step explanation:

The angles add up to 180

Answer:

F and G

Step-by-step explanation:

120 and 60 degrees add up to 180, and supplementary angles need to add up to 180. Therefore, F and G are supplementary angles. Hope it helps!

Find the area of the circle to the nearest tenth. 12 in

А) 144л in^2

B) 6л in^2

C) 12л in^2

D) 36л in^2​

Answers

Answer:

The answer is B

I had search that up before

The Lowest common multiple of 2 numbers is 126
what are the 2 numbers

Answers

Answer:

Step-by-step explanation:

The least common multiple of 126 and 131 is

16,506

Easy! What is -6^2? The calculator says -36, but -6*-6 is 36. Confusing.

Answers

It would be 36. Cause 2 negatives cancels out

You entered;

[tex]-6^{2}=(-1)(6)(6)=(-1)(36)=-36[/tex]

In order to get the answer that you intended;

[tex](-6)^{2}=(-6)(-6)=36[/tex]

It takes 3 people a total of 192 hours to build a wall. How long would it take if 12 people built the same wall?

Answers

Step-by-step explanation:

you need to solve this using fractions.

Example :

It takes 3 men 8 hours to build a wall. How long would it take 4 men to build the same wall?

For 3 men: It is 1 wall divided by 8 hours, which is 1/8.

For 1 man: It is 1/8 divided by 3, which is 1/24.

For 4 men: It is 1/24 multiplied by 4, which is 1/6, = 6 hours.

What type of number is 114?
Real
Imaginary
Complex

Answers

Answer:

real

Step-by-step explanation:

Real

Complex is a number like pi

Imaginary is numbers like i

Answer:

It should be real Complex because all real and Imaginary numbers are complex.

Hep need please and thanks

Answers

the answer is the last one

3х - 30 = у
7y - 6 = 3х

Answers

Answer:

Step-by-step explanation:

This one is simple substitution... at least, substitution is the easiest method. The first equation is 3x – 30 = y  and the second is 7y – 6 = 3x

As I look, I see 3 ways to use substitution to solve this:

substitute 7y – 6 for 3xsubstitute 3x – 30 for ysolve 3x – 30 = y for 3x and make it equal to 7y – 6

We're going to only use 1 method for the sake of time. Try the other two on your own. Assuming you don't make any mistakes, they will work.

Method 1:

3x – 30 = y

7y – 6 = 3x  — initial system of equations

7y – 6 – 30 = y  — substitute 7y – 6 for 3x

7y – 6 – 30 = y  — marking like terms, bold for constants, underlined for variables

7y – 36 = y  — combining the constants and simplifying

Here, you could diverge into multiple paths: add 36 to both sides, subtract y from both sides, divide by 6 OR subtract 7y from both sides and divide by –6 . For the sake of time, I'm subtracting 7y, though I don't like dealing with negatives.

7y – 7y – 36 = y – 7y  — subtract 7y from both sides

–36 = –6y  — simplify

–36 ÷ –6 = –6y ÷ –6  — divide by –6 on both sides

y = 6  — simplify

Again, we can diverge here: substitute y into 3x – 30 = y or substitute y into 7y – 6 = 3x

I'm going to choose 3x – 30 = y but it will work either way, should you take the time (if you have it) to chase down every path this problem can take.

3x – 30 = y  — initial equation

3x – 30 = 6  — substitute 6 for y

3x – 30 + 30 = 6 + 30  — add 30 to both sides to isolate 3x

3x = 36  — simplify the expression

3x ÷ 3 = 36 ÷ 3  — divide both sides by 3 to isolate x

x = 12  — simplify

So, we have x = 12 and y = 6 . We know they work for 3x – 30 = y  but not if they work for 7y – 6 = 3x . Let's substitute those in to see if (12, 6) really is the solution point.

7y – 6 = 3x  — original equation

7(6) – 6 ≟ 3(12)  — substitute 6 for y and 12 for x

42 – 6 ≟ 36  — simplify by multiplying

36 = 36 ✔  — simplify by combining like terms on left side

Success! It works! We have found our solution!

I hope this helps increase your understanding of the concept. Have a great day!

I need help with Geometry

Answers

Answer:

1st option

Step-by-step explanation:

We see that one angle is 28, so because of alternate interior angles, angle two is also 28. Angle one is 90 because those two lines are perpendicular and the only available options for A is 90, and measurement angle 3 is going to be 180 - (90 + 28) (sum of interior angles in a triangle) and you're going to get 62.

Let me know if you have any questions

pls help me for brain list and a thanks and a 5 star review

Answers

3/4 + 2/4 = 6/4 or 3/2

Use the number line to add, second choice is simplified

what does the perpendicular bisector of a line mean?

Answers

This bisector created a 90 degree angle

Answer:

A line segment perpendicular to and passing through the midpoint.

Step-by-step explanation:

I need help with my math homework.
Find the slope of each line.
Thanks!

Answers

7 is infinite 6 is 4/3 5 is zero 4 is negative 5/4
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