Mathematics High School

FInd the length of DB and CD. Please help!

Answers

Answer 1

Step-by-step explanation:

DB length = 5 1/4 + 2/3

=21/4 + 2/3

= 63/12 + 8/12 = 71/12

CD length = 5 1/4 -2 = 3 1/4

Related Questions

are these rational numbers

Answers

yes and second no it is not

If x is 6, then 7x = ?

Answers

Answer:

Step-by-step explanation:

x=6

7x=?

7x= x*7

7x=6*7

7x=42

So the answer is 42,

Hope this helps!

the first thing u will do is put the 6 in place of the x. so it would be 7 times 6. the answer is 42

Write six different numbers between 365.89 and 365.91.

Answers

Step-by-step explanation:

365.892

365.895

365.899

365.902

365.905

365.909

HELP QUICK PLSSSSSS Distribute 8(4+x)

Answers

the answer for your question is 32+8x

8(4+x)
32+8x is the answer

What is the value of the expression when y=5y=5 and z=3z=3

Answers

Answer:

y = 1

z = 1

Step-by-step explanation:

y = 5y = 5

5y = 5

y = 5/5 = 1

z = 3z = 3

3z = 3

z = 3/3 = 1

What do you mean by Factoring Polynomial?
a. a technique that is based on the property
b. to express or expressing a polynomial as a product
c. breaking down a structure into its fundamental prime factors
d. expressing a product of two other natural numbers

Answers

Step-by-step explanation:

Factoring a polynomial is the process of decomposing a polynomial into a product of two or more polynomials. For example, f ( x ) = x 2 + 5 x + 6 f(x) = x^2 + 5x + 6

20 POINTS!! (see attached image)

Answers

Answer:

2x+1

Step-by-step explanation:

I NEED HELP!!
MY TEACHER Wouldnt EXPLAIN THIS TO ME PLZ HELP!!

Answers

Answer:

Your math teacher deserves to be fired.

The example for this is 1.23 × 4.5 (none of your questions, I know)

Anyway we want to do this lining up the digits like so:

1.23

× 4.5

NOT

1.23

× 4.5

Now we want to multiply all the digits (1, 2, 3) in the top number (1.23) by the 5 in 4.5. We'll start with the 3 in 1.23.

Since 3 × 5 is equal to 15, we will put the ones digit of 15, 5, in that place.

1.23

× 4.5

Now we need to carry the 1 in the 15 to be used in 2 (of 1.23) multiplied by the 5 (in 4.5). Now we will get 2 × 5 + 1 which equals 11. We carry the 1 in 11 to the next part.

[tex]_{1}[/tex]

1.23

× 4.5

So we currently have the digits 15 for our answer. Now we move to the next part where we do 1 × 5 + 1 which is equal to 6. Our problem is now:

[tex]_{1}[/tex]

1.23

× 4.5

615

Now we can move to the next row where we do the exact same thing where we multiply the digits in 1.23 BUT instead of 5, we now multiply them each by 4 since our number is 4.5. However this is different, before starting to multiply, we need to put a 0 in the ones digit of the 2nd row of our answer like so:

[tex]_{1}[/tex]

1.23

× 4.5

615

+ 0

Now we can start to multiply.

[tex]_{1}[/tex]

1.23

× 4.5

615

+ 20

then

[tex]_{1}[/tex]

1.23

× 4.5

615

+ 920

then

[tex]_{1}[/tex]

1.23

× 4.5

615

+4920

Now we are almost at our solution, we need to now add our 615 and 4920. That then is equal to 5535. Now since we have 3 digits in total in 1.23 & 4.5 BEHIND the decimal point, we need to put a decimal point 3 digits to the right of 5535 so then it becomes 5.535. Hopefully, this helps? I didn't answer them immediately because if you never learn how to do long multiplication (what this is called) then you'll likely fail at all other math. Trust me, I know, I've done that before, I hope you don't make the same mistake because the feeling when everyone else is ahead of you and you're still at the basics is horrible.

Anyway answers for your question because I think I'll likely be reported for not answering your question:

40.725 | 9.576 | 17.442 | 45.29

79.294 | 30.736 | 30.8 | 31.5

2x+x+4x=7x

-1+17-15=1

7x+1=106º

-1

7x=105º

/7 /7

x= 15

Given the expression-1/2(4x-6) +2 (x2-5x+5) complete the instructions below
A)Simplify the expression

B) identify the terms , factors , coefficients and constants of the simpler expressions
Terms
Factors
Coefficients
Constants
Please I’ll mark you as a brainliest

Answers

Answer:

A) 2x^2 -12x +13

B) terms {2x^2, -12x, 13}; coefficients {2, -12, 13}; constants {13}

Step-by-step explanation:

A) Using the distributive property, we get ...

-2x +3 +2x^2 -10x +10

= 2x^2 -12x +13

B) Terms: {2x^2, -12x, 13}

Factors: There are no overall factors. Each term has factors ...

2x^2 has factors {2, x, x}

-12x has factors {-1, 2, 2, 3, x}

13 has factors {1, 13} (it is prime)

Coefficients: {2, -12, 13} . . . see note below

Constants: {13}

_____

Additional comment

We have listed the prime factors of each term, any subset can be multiplied to be a factor of the term. For example, 2·3 = 6 is a factor of -12x.

Please note that some sources do not consider a constant (13) to be a coefficient. You will need to refer to your curriculum materials to see what your author says about that.

Solve for x.

-5x = -10

x = 2
x = -2
x = 50

Answers

Answer:

Putting x= 2

[tex]( - 5) \times 2 = - 10 \\ - 10 = - 10[/tex]

putting x = -2

[tex]( - 5) \times ( - 2) = - 10 \\ 5 \times 2 = - 10 \\ 10 = - 10 \\ this \: is \: not \: correct \: equation[/tex]

putting x = 50

[tex]( - 5) \times 50 = - 10 \\ - 250 = - 10 \\ this \: is \: also \: not \: correct \: equation[/tex]

so, x = 2 is applicable.

Can someone help ASAP I think Ik the answer but don’t wanna get wrong

Answers

Answer:

(4x+1)= 81

Step-by-step explanation:

4x+1= 81

4x= 81 - 1

4x= 80

x= 80/4

x= 20

Answer:

4x+1=81(vertically opposite angles)

x=20 degrees

Step by step explanation:

4x+1=81

4x =81-1

4x=80

x=20

Which sequences are arithmetic? Select three options.

–8.6, –5.0, –1.4, 2.2, 5.8, …
2, –2.2, 2.42, –2.662, 2.9282, …
5, 1, –3, –7, –11, …
–3, 3, 9, 15, 21, …
–6.2, –3.1, –1.55, –0.775, –0.3875,

Answers

Answer:

Below.

Step-by-step explanation:

Number 1 is arithmetic . The common difference (d) = 3.6.

Number 3 .. .. .. .... .. .................................... d = -4.

Number 4 ........................................................................ d = 6.

Answer: A C D (in green in file)

Step-by-step explanation:

Here is a excel file that do the job.

Data are in lines 1 and 2.

there are only 2 formula.(in B1 and B2)

Others cells are just copied (incrementiel)

If $10,000 is invested at a rate of 3.4 percent for 5 years, how much money is in the account at the end of the term?

$340
$3,400
$10,000
$11,700

Answers

I believe it is $11,700

Answer:

D. $11,700

Step-by-step explanation:

How can you use the prime factorization to find the other factor pairs of 36

Answers

Answer:

Step-by-step explanation:

We can write 36 as a product of prime factors: 36 = 2² × 3². The expression 2² × 3² is said to be the prime factorization of 36

Evaluate the expression 3(7 + 4)^2 − 14 ÷ 7

-An explanation on how to find the answer would be amazing!

Answers

use PEMDAS.
1. multiply the 7 and the 4 by 3
2. square the 12 to get 144
3.multiply 144 by -14
4. divide -2016 by 7
5.subtract 288 from 21 (if you subtract 21 from 288 you get 267 so put +- in front for both answers :) )

Find the area of trapezium whose parallel side are 10 and 12 cm. And height is 7 cm

Answers

Answer:

77 cm²

Step-by-step explanation:

We know that

Area of trapezium = ½ (a + b) × h

Area = ½ × (10 + 12) × 7

Area = ½ × 22 × 7

Area = 11 × 7

Area = 77 cm²

Given :

Length of parallel sides = 10 cm and 12 cm

Height = 7 cm

What To Find :

Area of trapezium

Formula Using :

[tex]\begin{gathered} {\underline{\boxed{ \rm {\red{Area \: of \: trapezium \: = \: \frac{1}{2} \: \times \: (a \: + \: b) \: \times \:Height }}}}}\end{gathered}[/tex]

Where ,

a and b is Parallel sides

Solution :

[tex] \begin{cases} \large\bf\purple{ \implies} \rm \:Area \: of \: trapezium \: = \: \frac{1}{2} \: \times \: (10 \: + \: 12) \: \times \:7 \\ \\ \large\bf\purple{ \implies} \rm \:Area \: of \: trapezium \: = \: \frac{1}{2} \: \times \: 22\: \times \:7 \\ \\ \large\bf\purple{ \implies} \rm \:Area \: of \: trapezium \: = \: \frac{1}{ \cancel2} \: \times \: \cancel{22} \: ^{11} \: \times \:7 \\ \\ \large\bf\purple{ \implies} \rm \:Area \: of \: trapezium \: = \:11 \: \times \: 7 \\ \\ \large\bf\purple{ \implies} \rm \:Area \: of \: trapezium \: = \:77 \: {cm}^{2} \end{cases}[/tex]

Solve the following:
43/(-12 + 22)
(2x3)2 + (-5x2x3) + 2
Give your answer in simplest form.

Answers

Answer:

43/40x^3-5x^5+2

Answer:

This should be all of them

Step-by-step explanation:

Answer the question please

Answers

Similar to the other one, you now have a scale factor of 1/2, meaning each coordinate will be multiplied by 1/2.
(This will have the effect of pulling things in closer to the origin.)

Step 1: Identify the coordinates of Point K.
Step 2: Multiply both of those coordinates by 1/2.

Do you have it from there?

Arlene had 1/3 as many goldfish as Isabelle. Isabelle has 5 times as many goldfish as Bruce. If Bruce had 18 goldfish, how many goldfish does Arlene have

Answers

Answer: 30 goldfish

Step-by-step explanation: Bruce has 18 goldfish. If Isabelle has 5 times as many goldfish as Bruce she will have 18*5=90 goldfish. If Arlene has 1/3 times as many goldfish as Isabelle she will have 90/3=30 goldfish.

Write the equation of the line in fully simplified slope-intercept form.

Answers

Here is the answer to your question

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