Mathematics High School

Which equals (√20-√3) (√20+√3)

Answers

Answer 1

Answer:

answer is 17

Step-by-step explanation:

by (a+b)(a-b) = a²-b² identity

(√20-√3) (√20+√3)

= √20²-√3²

=20-3

=17

Related Questions

What is 46.875 the nearest dollar

Answers

Answer:

$47

Step-by-step explanation:

46.875 rounded would be 47.

Find FE (image Below)

Answers

Answer:

FE= 20

Step-by-step explanation:

…......................

SAS

FE = 20

Step-by-step explanation:

GD = FE

3x + 5 = 4x

5 = 4x - 3x

5 = x

so, FE = 4x

= 4 × 5

= 20

If you earn $10 per hour babysitting, and you work 5 hours per week, how much money will you earn in 4 weeks?

Answers

Answer:

$200

Step-by-step explanation:

1 week: $50

1 week ($50) x 4 = $200

Answer: You will earn $200 in the span of 4 weeks.

Step-by-step explanation:

• First, multiply the pay rate ($10 per hour) by the number of hours (5), yielding $50 a week.

• Multiply the total pay in the span of 1 week by the number of weeks (4 in this case), resulting in $200 in the span of 4 weeks.

Mrs Jenkins buys a car for £3400.
She sells it for £3800.
Work out her percentage profit.

Answers

Answer:

%11.76

Step-by-step explanation:

400/3400x100 = 11.76

Find the values of x and y in the equation below.

Answers

I’m pretty sure this is the right answer I couldn’t figure out how to type it so i had to Write it down

Answer:

not negatives!!!!!

Step-by-step explanation:

PLEASE HELP ASAP!!!! simplify this expression y=0.03y

Answers

Answer:

103y/100

Step-by-step explanation:

help pls brainliest for whoever helps me ·ω·

Answers

Answer:

Step-by-step explanation:

Answer:

Answer is 8 :D

Step-by-step explanation:

The common factor of those 2 numbers are 1, 2,4,8 :)

the original price of a pair of sneakers is $89.00 the store advertizes a sale for 15% off what is the sale price for the sneakers

Answers

Answer:

$75.65

Step-by-step explanation:

$89 x .15 = $13.35

$89 - $13.35 = $75.65

If 7 less than 4 times a number is two more than that number, what is the result when the number is subtracted from 50?

Answers

Answer:

4x-7=x+2

3x=9

x=3

3-50=-47

Step-by-step explanation:

Write the following equation in standard form: x^5 + 2x^3 +6x + 1/5

Answers

Or use photomath, it is also useful!

Answer:

it already is in standard form

Step-by-step explanation:

1. Ashley invested $210 in a saving account with an 8%
interest rate. How much interest will she earn after 7
years?
What is the interest rate

Answers

Answer:

The intrest rate is 8% and after 7 years she will have made 149.90 in total intrest.

9 (p - 4) = -18 what is the value of the p

Answers

Answer:

p=2

Step-by-step explanation:

9(p-4)=-18

9p-36=-18

9p=18

p=2

Answer: p=2

Step-by-step explanation:

Divide -18 by 9 to get (p-4)=-2 and then add the 4 to the 2 to get the answer of 2

Find the surface area of the figure shown below.

Answers

173ft bc 6.5x11x2 6x5/1/2x2

PLEASE HELP HURRY!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Step-by-step explanation:

Multiplication Property of equality.

multiply 5 on both side to have x alone on One side.

Express as integer: a deposit of $100

Answers

Answer:

Well if you deposit something you won't have it so negative. If you earn something then it is positive. So it is negative

Step-by-step explanation:

Can someone help me please

Answers

Answer:
17 inches

Explanation:
The Pythagorean theorem states that a^2+b^2=c^2 when c is the longest side (the hypotenuse) and a and b are the other two sides. This theorem can only be applied to right triangles.

First, plug the values into the formula.
a^2+b^2=c^2
8^2+15^2=c^2
64+225=c^2
289=c^2
Take the square root of both sides
c=17

I hope this helps!

please add these to numbers together 474.766 + 100.725=

Answers

Answer:

575.491

Step-by-step explanation:

Add 474.766 and 100.725. This is your answer.

Answer:

575.491

Step-by-step explanation:

1 1

474.766

+100.725

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

575.491

Stay safe and have a wonderful day/night!!!!!

Brainliest?!?!

(I spent a lot of time on this, I hope it actually helps! :) )

Correct me if I'm wrong

A grocery store charges $2.49 per pound for organic apples. What is the cost c, in dollars, of p pounds of organic apples? Write an equation to represent the situation.

Answers

Answer:

$2.49p = c

Step-by-step explanation:

sorry if wrong

Answer:

c=2.49p

Step-by-step explanation:

ASAP,What are the possible solutions to a system of equations and What does it mean for a system of equations to have one Solution, no solution, infinite many solutions?
(its an essay so plz explain it to me)

Answers

Answer:

ok for the first one the lines only cross once 2. lines dont cross 3. its just one line

Step-by-step explanation:

im pretty sure thats right

3(x+2)=36
Please help

Answers

Answer:

Step-by-step explanation:

3(x+2)=36

3x+6=36

3x=30

x=10

Answer:

3 (10+2)=36

Step-by-step explanation:

Hope this helps

A rectangle has one side that measures 3x + 1 and another that measures 4y + 3. Keith says that the perimeter of the rectangle is 3x + 4y + 4. What is Keith's mistake and what is the correct perimeter of the rectangle?

Answers

Answer:

he added the dimensions of the rectangle. He used the wrong formula. the formula he used was length + breadth. He should have multiplied by 2

6x + 8y +8

Step-by-step explanation:

Perimeter of a rectangle = 2 x (L + B)

L = length

b = breadth

2 (3x + 4y + 4. ) = 6x + 8y +8

There are GCF of two numbers is three and the LCM is 180. If one of the numbers is 45,what is the other number ?

Answers

Answer:

The other number is 12

Step-by-step explanation:

There are GCF of two numbers is three and the LCM is 180. If one of the numbers is 45,what is the other number ?

Let us represent the other number as x

There are GCF of two numbers is three and the LCM is 180.

Therefore:

45 × x = 3 × 180

45x = 3 × 180

x = 3 × 180/45

x = 12

Therefore, the other number is 12

how do you show your work on solving 4794 divided by 22

Answers

The answer is 217 with a remainder of 20.

explanation is in the picture.

Need help, you know the deal lol

Answers

Answer:

É correto afirmar: *

1 ponto

a) O tempo profano é o tempo cronológico, pois não está associado ao sagrado, ao religioso. Trata-se do tempo que é medido por meio de vários instrumentos.

b) O tempo profano é o tempo mítico, primordial, o tempo da origem das coisas.

c) O tempo não tem relação com o sagrado. O sagrado somente tem relação com o espaço.

d) Para as religiões não há diferenças entre tempo sagrado e tempo profano.

2. Sobre temporalidade sagrada é correto afirmar: *

1 ponto

a) As festas sagradas não estão ligadas à temporalidade sagrada, afinal têm somente como objetivo o entretenimento dos fiéis.

b) A cronologia Budista inicia-se a partir da saída do profeta Muhammad da cidade de Meca.

c) O calendário cristão gregoriano inicia a contagem dos dias a partir da ressurreição de Jesus Cristo.

d) Rituais e Festas Sagradas são importantes para que as pessoas rememorem e revivam os acontecimentos sagrados, atualizando, desse modo, sua fé, sua devoção e seu comprometimento com a religião.

Outro:b

Triangle JKL is rotated 45° counterclockwise using the origin as the center of rotation.
2
-
Which graph shows the location of triangle J'K'L?

Answers

Answer:

its a

Step-by-step explanation:

The angles with measures x and 4x are complementary angles. Which is the value of x2 4x

Answers

Answer:

I LIKE BUTTT

Step-by-step explanatioBIG bozi

4(x-3)=20
GUYSS I NEED HELP

Answers

4x+12=20
-12 -12
4x=8
4 4
X=2

Step-by-step explanation:

simplify the bracket

4x-12=20

4x=20+12

4x=32

X=8

What are the two square roots for the number 81? *
(1) 27 and 3
(2) 9 and -9
(3) 40.5 and 2
(4) None of these

Answers

Answer:2

Step-by-step explanation:9 and -9 squared both are 81 because double negative makes a positive

HELP FOR A BRAINLIEST :)) JHGJQETBHJ
show me ya solving out too

Answers

Answer:

Step-by-step explanation:

1 mile = 1.609 kilometers

Answer:

4 minus StartFraction n cubed Over 7 EndFraction + 3

Step-by-step explanation:

Let the number be n

Quotient of of a number cubed and seven: n³/7

Four less the quotient of a number cubed and seven: 4 - n³/7

Four less the quotient of a number cubed and seven, increased by three: 4 - n³/7 + 3

Can I get help on this math question plzzzz

Answers

I’m pretty sure it’s cheese

Y intercept is -5 and slop is 3/4

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