If a =3 and b=-2,what does this expression equal? -2b-a

Answers

Answer 1

Answer:

Step-by-step explanation:

we will replace the expression -2b-a with the values

-2(-2)-3=4-3=1

Related Questions

In AABC AB = 3x - 2, BC=x+4, and AC = 7. Also AB = BC Which term does NOT describe AABC?

Equilateral
Acute
Isosceles
Obtuse

Answers

Answer:

acute maybe

Step-by-step explanation:

The given ΔABC is an equilateral triangle because all the sides are equal. The term which does not describe the ΔABC is obtuse option D is correct.

What is the triangle?

Triangle is a shape made of three sides in a two-dimensional plane. the sum of the three angles is 180 degrees.

Given that:-

In AABC AB = 3x - 2, BC=x+4, and AC = 7. Also AB = BC

We know that AB = BC

3x - 2 = x + 4

3x = x + 4 + 2

3x = x + 6

2x = 6

x = 3

AB = 3x - 2 = 3(3) - 2 = 7

BC = x + 4 = 3 + 4 = 7

All three sides are equal so the triangle is an equilateral triangle. Hence given ΔABC is an equilateral triangle because all the sides are equal. The term which does not describe the ΔABC is obtuse option D is correct.

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What is the x and y intercept for 2x-5y=40

Answers

Answer:

y-intercept: (0,-8)

X-Intercept:(20,0)

Step-by-step explanation:

Hope this helps :) (please mark brainliest)

What is the volume of a sphere with a radius of 6.4 in, rounded to the nearest tenth of
a cubic inch?

Answers

Answer: 1,098.1

Step-by-step explanation: Hope this helps, Merry Christmas, and have a nice day!

HELP ME PLEASEEEE ITS FOR geometry ITS WORTH 51 POINTS

Answers

Answer:

answer is b

Step-by-step explanation:

The answer is A. 80 degrees

Neptune is approximately 2.795 x 109 miles from the sun. Jupiter is 4.838 x 108 miles from the sun. Approximately how many times farther is Neptune from the sun than Jupiter? A 0.173 B. 1.73 x 1017 C. 5.78 D. 5.78 x 1016

Answers

Answer:

d is answer

Step-by-step explanation:

ok this is real answer

Geometry - Unit 4 - Lesson 8

Answers

Answer:

Step-by-step explanation:

What is the equation that represents the sentence, "Twenty-four is the sum of a number and six." Use x for the
variable.
O 24+6 = x
24 = x+6
O 24+ x = 6
OX-6+ 24

Answers

Answer:

B. 24 = x+6

Step-by-step explanation:

It is the only one that has a 24 with an equal sign next to it

Answer:

Step-by-step explanation:

Dont give me credit give the guy above all the credit

x – 7y = –11
5x + 2y = -18

Answers

Answer:

hope this help you

Step-by-step explanation:

Simplifying

X + -7y = -11

Solving

X + -7y = -11

Solving for variable 'X'.

Move all terms containing X to the left, all other terms to the right.

Add '7y' to each side of the equation.

X + -7y + 7y = -11 + 7y

Combine like terms: -7y + 7y = 0

X = -11 + 7y

Simplifying

X = -11 + 7y

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

Solving

5x + 2y = -18

Solving for variable 'x'.

Add '-2y' to each side of the equation.

5x + 2y + -2y = -18 + -2y

Combine like terms: 2y + -2y = 0

5x = -18 + -2y

Divide each side by '5'.

x = -3.6 + -0.4y

Simplifying

x = -3.6 + -0.4y

it is a prodigy question please help

Answers

Answer:

428

Step-by-step explanation:

Answer:

428

Step-by-step explanation:

11 more than a number q is negative 15.

Answers

Answer: 11 + q = -15

Step-by-step explanation:

Answer: 11 + q = -15

Two sides of a triangle have lengths 7 and 13.

The third side has a length that is

Answers

Answer:

19?

Step-by-step explanation:

Katy bought a $76 dress at 33% off and a $52 pair of shoes at 15% off. If
sales tax is 6.75% how much did she pay in total?

Answers

Answer:

101.54

Step-by-step explanation:

Answer:

$103.21

Step-by-step explanation:

33% of 76=$25.08 then 76-25.08=$50.92

12% of 52=$6.24 then 52-6.24=$45.76

50.92+45.76=$96.68

6.75% of 96.68=$6.525-->$6.53

96.68+6.53=($103.21)

Lenore borrowed $400 to pay for car repairs. She needs to pay it back in 2 years with simple interest. Lenore wants to figure out the interest rate of her loan. What additional information does she need to find the interest rate?
principal
amount of time
interest she will owe
the type of car repairs

Answers

Answer:

principal

Step-by-step explanation:

Answer:

Step-by-step explanation:

I'm stpid pls help.

Answers

Answer: the answer is n and o

Step-by-step explanation:

BC is the same as N and O

Consider each equation and solution. Which solution is not correct?

A. W/2 - 13 = -5;w = 16
B. -2x/5 = 4; x = -10
C. 12 - 2y = 8; y = -2
D. 30 = 5z + 10; z = 4

Answers

C is not correct bcoz;
12-2y = 8
12-12-2y = 8-12
-2y = -4 (Divide by -2)
y = 2
Not -2

Help pleaseee:))))
If x equals -4, what does -x equal???

Answers

i would say it equals 4 because if x=-4 than -x should equal 4 i may be wrong though

VERTICIES AND COORDINATES

A(2,2), B(2, 6), C(5, 2)

I'VE BEEN WORKING IT FOR 6 HOURS STRAIGHT HELP ME.

Answers

Use Desmos, it’s a graphing app

Which line is parallel to the line given y=- 4/3x+1

Answers

Answer:

Any other line with this slope (-4/3)

Step-by-step explanation:

A quick look at y= (-4/3)x + 1 tells us immediately the slope of the given line is (-4/3). Any other line with this slope (-4/3) is parallel to y= (-4/3)x + 1. Next time, please share the answer choices. Thank you.

4x2+24=0 simplify solutions

Answers

Answer:

4x^2 + 24 = 0

4x^2 = - 24

unsqrt

4x = ±2√6

x = (±2√6)/4

PLEASE HELP
Evaluate the function f(x) = (2x)2 - 1 when x = 2 and when x = -1

Answers

Answer:

F(x)=1

Step-by-step explanation:

F(2)=(2x-1=-2)2-1= 1= -1

A truck is 180 inches long. A car is 30% shorter than the truck. How long is the car?

Answers

the car is 54 inches long.

A student wants to glue a piece of string from the center of a round table to the edge. If the circumference of the table is 24 inches, approximately how many inches of string will the student need?

Answers

Answer:

3.8 inches

Step-by-step explanation:

Divide 24 by 3.14 (Pi) then divide that number by 2

The number of inches of string that the student needs will be 3.82 inches,

What is the circumference of a circle?

It is the close curve of an equidistant point drawn from the center. The radius of a circle is the distance between the center and the circumference.

Let r be the radius of the circle. Then the circumference of the circle will be

C = 2πr units

A student wants to glue a piece of string from the center of a round table to the edge. If the circumference of the table is 24 inches. Then the radius of the circle is given as,

24 = 2πr

r = 24 / 2π

r = 3.82 inches

The number of inches of string that the student needs will be 3.82 inches,

More about the circumference of a circle link is given below.

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Treys grandmother stores her picture frames in a box. Each side of the box is 20 inches long. Trey wants to know the volume of the box

Answers

Answer:8000

Step-by-step explanation:

The Volume of the box will be 8000 in.³

What is volume ?

Volume is a three dimensional space occupy by the body of particular shape such as here :

It should be noted that a box has six sides that are equal. In this case, we've been given the side of one of the lengths to be 20 inches.

The volume of a cube is :

V = a³

Therefore, the Volume of the box will be :

V = 20³

V = 8000 in.³

Therefore, the Volume of the box will be 8000 in.³

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2. (04.02 LC)
Which of the following describes how to read the decimal number 0.92? (2 points)
ninety-two thousandths
ninety-two
ninety-two hundredths
twenty-nine hundredths

Answers

I think ninety-two hundredths

need help with the last 2 numbers

Answers

Answer:

the solution is t ≤1 (1)

fill in the table using this function rule. y= -6x + 3
x y
-1 ?
0 ?
1 ?
5 ?

Answers

just add 3 to the y value

A survey of 100 randomly selected dentists in the state of Ohio results in 78% who would recommend the use of a certain toothpaste. The population proportion is known to be p=0.72. For samples of size 100, which of the following best interprets the mean of the sampling distribution of sample proportion of dentists in the state of Ohio who would recommend the use of a certain toothpaste?

Answers

Answer:

I think its A

Step-by-step explanation:

Answer:

The mean of all sample proportions from all random samples of 100 dentists in the state of Ohio is equal to 0.72.

Step-by-step explanation:

please help!! its music!!

Answers

Answer:

Lowers the pitch by 1/2 step

Step-by-step explanation:

Given that f(x) = x2 - 2x - 15,
a. Find the coordinates of the y-intercept

b. Find the coordinates of the x-intercepts

c. Find the coordinates of the vertex

d. Use the above information to sketch a graph of f(x)

Answers

a) (0; -15)

you just let x be equal to 0.

b) ( -5; 0) and (3;0)

you just let y/ f(x) equal to 0.

Determine the value of the missing length. ROUND TO THE NEAREST TENTH if needed
А
C = 6
ma
C = 4
С
C = 5.1
D
C = 4.8

Answers

Answer:

C=5.1

Step-by-step explanation:

Using pythag (a²+b²=c²) we can determine c.

1²+5²=26

√26 = 5.099

c=5.1

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