if a = 4 and b=3, what is the value of (a+b) (a-b)​

Answers

Answer 1

Answer:

-7

Step-by-step explanation:

(4+3)x(4-3)

4+3=7

4-3=-1

7x-1= -7


Related Questions

if it is a tree then it has leaves which of the diagrams below represents the statement ​

Answers

Answer: B

Step-by-step explanation:

Choose the answer that makes the sentence blank true real numbers are integers

Answers

Hey there is no photo or anything

i don't think any one can answer this and you be more specific

write the sentence as an inequality

a number m is more than -7 2/3 or at most -10



Answers

See attachment for math work and answer.

The given statement in the form of inequality can be written as,[tex]-7 \dfrac{2}{3} \leq m \leq -10[/tex]

What is inequality?

It is defined as the expression in mathematics in which both sides are not equal they have mathematical signs either less than or greater than known as inequality.

It is given that,

A number m is more than -7(2/3) or at most -10

From the given data it is observed that the value of the number lies between -7(2/3) and -10.\

The given data can be written in the terms of inequality as,

[tex]-7 \dfrac{2}{3} \leq m \leq -10[/tex]

Thus, the given statement in the form of inequality can be written as,[tex]-7 \dfrac{2}{3} \leq m \leq -10[/tex]

Learn more about inequality here:

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HELP ASAP PLEASE ! Which graph represents the equation Y=-3/2x-3 .. answer choices are in the pic

Answers

Answer:

The third ,bottom left.

Step-by-step explanation:

The y goes -3 below the line and -3/2 which means it goes to the right of the graph.

The Points are (-2,0),(0,-3)

What does X equal x+10

Answers

It’s already simplify

Kenya picked 18 flowers from her garden. If 3/5 of flowers in her garden remain unpicked, how many flowers are still in her garden?

Answers

Answer:

45

Step-by-step explanation:

picking 18 flowers = 2/5 of garden or 40%

18÷.4=45

A summer camp has 720 ft of float line with which to rope off three adjacent rectangular areas of a lake for swimming​ lessons, one for each of three levels of swimming ability. A beach forms one side of the swimming areas. Suppose that the width of each area is x feet. Answer parts​ a) through ​c).

Answers

Step-by-step explanation:

Kindly find attached a detailed image to better understand the solution to this problem.

given that the total length of the line is 720ft

and also the line is divided into three sections

This means that the line will also be divided into three parts

720/3= 240feet so that a section will have two sides that are 240ft since the section forms a rectangular shape.

now for the other two sides

the total length of the rope is  = one length size of the rectangle+ 4 width size of the rectangle

one width size of the rope is x

then 4 width size is 4x

720=length of rectangle +4x

length of rectangle= 720-4x

area of a rectangle is =length *width

area of rectangle is =  (720-4x)*x

Hence the function A=  (720-4x)x can be used to solve for the area of the rectangle.

Find the length of the line segment shown. Round your answer to the nearest tenth.

Answers

Answer:

[tex]d=10[/tex]

Step-by-step explanation:

Distance Formula: [tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]

Step 1: Define endpoint coordinates

(2, 5)

(-6, -1)

Step 2: Substitute and Evaluate

[tex]d=\sqrt{(-6-2)^2+(-1-5)^2}[/tex]

[tex]d=\sqrt{(-8)^2+(-6)^2}[/tex]

[tex]d=\sqrt{64+36}[/tex]

[tex]d=\sqrt{100}[/tex]

[tex]d=10[/tex]

In a period of 2 and one-fourth hours, 5 and one-half gallons of water leaked from a water tank. How much water did the tank lose per hour?

Which division problem represents the problem?

Answers

Answer:

-11/2 divided by 9/4

Answer:

-11/2 divided by 9/4

Step-by-step explanation:

This is the answer I got

Multiply.

​3/8x4/5​

Express your answer in simplest form.

Answers

Answer:   3/10 or  (Decimal form:  0.3)

f (x) = 72 – 5, x < 0
2,
0 <<3
✓+1,

What are the indicated limits of f(x)

Answers

Answer: limits of f(36

Step-by-step explanation:

What's the answer for this question

Answers

Answer: x-3

Step-by-step explanation: RT - TS = RS

PleEASSSE HELP ME WITH K AND L

Answers

K. A quadrilateral has a total angle measure of 360. We know that two of the angles are 90, so we can subtract 180 from that. We’re left with 180. So we can make it into and equation. X+2x=180. Simplify and solve, and you get that x=60.

L. Again, a quadrilateral has a total of 360. So we can subtract the right angle from that and get 270. Put it into and equation, and you get x+2x+3x=270. Simplify and solve, and you get that x=45.

-6 ÷ -2 pls provide an explanation

Answers

Answer:

it would be 3 because a negative divided by negative is a positive

and 6/2=3

What is 1 1/4 + 2/3 it didn’t show me the answer that I was looking for I’m adding there were showing me to multiple.

Answers

Answer:

1 11/12

Step-by-step explanation:

rewriting our equation with parts separated

=1+14+23

Solving the fraction parts

14+23=?

Find the LCD of 1/4 and 2/3 and rewrite to solve with the equivalent fractions.

LCD = 12

312+812=1112

Combining the whole and fraction parts

1+1112=11112

Solution by Formulas

First:

Convert any mixed numbers to fractions.

Then your initial equation becomes:

54+23

Applying the fractions formula for addition,

=(5×3)+(2×4)4×3

=15+812

=2312

Simplifying 23/12, the answer is

=1 11/12

Answer:

1 11/12

Step-by-step explanation:

add wholes = 1

then fractions 1/4 = 3/12      2/3=8/12

this then equals 1 11/12

what is 8+[4+(-9)] ?

Answers

Answer:

Positive 3

Step-by-step explanation:

you have to add 4 and -9 first and you get -5 then you add that to positive 8 and get 3

A box of chocolates contained 8% caramels. There were 4 caramels in the box. How many pieces of chocolate are in the box?​

Answers

Answer:

Step-by-step explanation:

If you are desperate, copy and paste the below answer. It should be correct but I don't know your syllabus.

8% C = 4      1% C = 4 ÷ 8 =0.5      100% C = 0.5 × 100 = 50

Hope this helps.

write a equivalent expression for 12a+60

Answers

Answer: 12(a+5)

Step-by-step explanation: factor out 12 from the expression

ANSWER 12(a+5)

if m2 = 125, m12= 37 and m18 = 102, find the measure of each angle

Answers

Answer/Step-by-step explanation:

Given:

m<2 = 125°

m<12 = 37°

m<18 = 102°

a. m<1 + m<2 = 180° (linear pair)

m<1 + 125° = 180° (substitution)

m<1 = 180° - 125°

m<1 = 55°

b. m<3 = m<18 (alternate exterior angles)

m<3 = 102° (substitution)

c. m<4 + m<3 = 180° (linear pair)

m<4 + 102° = 180° (substitution)

m<4 = 180° - 102°

m<4 = 78°

d. m<5 = m<2 (vertical angles)

m<5 = 125° (substitution)

e. m<6 = m<1 (vertical angles)

m<6 = 55° (substitution)

f. m<7 = m<12 (alternate angles)

m<7 = 37° (substitution)

g. m<8 + m<12 + m<13 = 180° (sum of triangle)

m<12 = 37° (given)

m<13 = m<18 = 102° (vertical angles)

m<8 + 37° + 102° = 180° (substitution)

m<8 + 139° = 180°

m<8 = 180° - 139°

m<8 = 41°

h. m<9 = m<18 (corresponding angles)

m<19 = 102° (substitution)

i. m<10 = m<6 (alternate interior angles)

m<10 = 55°

j. m<11 + m<6 + m<7 = 180° (sum of triangle)

m<11 + 55° + 37° = 180° (substitution)

m<11 + 92° = 180°

m<11 = 180° - 92°

m<11 = 88°

k. m<13 = m<18 (vertical angles)

m<13 = 102°

l. m<14 = m<4 (corresponding angles)

m<14 = 78°

m. m<15 = m<5 (corresponding angles)

m<15 = 125°

n. m<16 = m<6 (corresponding angles)

m<16 = 55°

o. m<17 = m<14 (vertical angles)

m<17 = 78°

Review the proof of the identity cos(π − A) = −cosA.

cos(π − A)

Step 1: = cosπcosA − sinAsinπ

Step 2: = (−1)(cosA) + (sinA)(0)

Step 3: = −1cosA + (sinA)(0)

Step 4: = −cosA + 0

Step 5: = −cosA

At which step was an error made?

step 1
step 2
step 3
step 4

Answers

Answer:

error in step 1

Step-by-step explanation:

well where is does the step not make sense?

remember cos(pi) = -1 and sin(pi)=0

that means step 1 is strange... it didn't distribute properly

it should have been:

cos(pi) - cos(A)

hope that helps! ^-^

The error is made at step 1). The correct trigonometric identity is cos(π - A) = cosπcosA + sinπsinA.

What are trigonometric identities?

Trigonometric identities are equalities that involve trigonometric functions and are true for every value of the occurring variables for which both sides of the equality are defined.

cos(π - A) = cosπcosA + sinπsinA

Learn more about trigonometric identities here

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PLEASE HELP WILL GIVE BRAINLIEST!!!

Answers

Answer:

i think its b is it isn't dont beat me up

geometry solving for x in triangles

Answers

Answer:

- 8°

Step-by-step explanation:

Step 1:

40° + x + 58° + 90° = 180°       Sum of a Δ

Step 2:

188° + x = 180°       Combine Like Terms

Step 3:

x = 180° - 188°     Subtract 188 on both sides

Answer:

x = - 8°

Hope This Helps :)

Logan went shopping at the mall. He spent $75.43 on shoes, $25.14 for a t‐shirt, and $43.85 on a denim jacket. How much did he spend in all? If Logan paid the cashier $200 in cash, how much money will he get back? *

Answers

Answer:

He spent 144.42   and he got back 55.58

Step-by-step explanation:

x+3+7(x-5) show work

Answers

Answer:

8x-32

Step-by-step explanation:

x+3+7(x-5)

Distribute

x+3 +7x -35

Combine like terms

x+7x  +3 -35

8x-32

there are 4 swimmers. amy swam 2 more laps than sean. katie swam twice as many laps as sean. tom swam 4 more laps than katie. all together the 4 swimmers swam a total of 78 laps. how many laps did sean swim?

Answers

Answer:

Sean swam 12 laps.

Step-by-step explanation:

Let S represent Sean

Let S+2 represent Amy

Let 2S represent Katie

Let 2S + 4 represent Tom

Now add together and set it equal to 78

S + S+2 + 2S + 2S+4 = 78

6S + 6= 78

6S=72

S=12

Karen is taking a standardized test. The more questions she answers correctly, the greater her final test score will be.


Which of the variables is independent and which is dependent?

Answers

Answer:

they are bothdependant

Step-by-step explanation: they have to be because her test score depend on the number of answers she gets correct

pls help ill give brainiest
For your trip to Austin you know you are going to travel 182 miles and your car can do that in 14 gallons. How far can your car travel on 8 gallons of gas?​

Answers

Answer:

Step-by-step explanation:

for 182 miles you need 14 gallons

???????                            8 gallons

8/14=x/182

x=182*8/14

x miles=104 miles

Round 35.367 to the nearest tenth.

Answers

Step-by-step explanation:

35.4

Answer:

35.4

Step-by-step explanation:

To round 35.367 to the nearest tenth consider the hundredths’ value of 35.367, which is 6 and equal or more than 5. Therefore, the tenths value of 35.367 increases by 1 to 4.

35.367 rounded to the nearest tenth = 35.4

Plz help! Is this right? Question is below!

Answers

Plot each point then find the perimeter!

steps to solve 6-3y=-6

Answers

Answer:

y = -4

Step-by-step explanation:

6 - 3y = 6

now were going to get the variable and the numbers on different sides

6 - 3y - 6 = - 3y

6 + 6 = 12

now divide each side by -3

-3y / -3 = y

12 / -3 = -4

y = -4

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