Zak wants to work out the area of this triangle.
14 cm
8 cm
- 12 cm
Here is his working.
12 x 8 = 96 cm
What is wrong with his method?

Answers

Answer 1
He isn’t adding! double your numbers ex: 14 x 2 = 28, 8 x 2 = 16 12 x 2 = 24. Now you add it all together 28 + 16 + 24 = 68 cm is your answer!

Related Questions

If the triangles are similar, what is the value of x?

Answers

Answer:

Step-by-step explanation:

125

Answer:

[tex]x=42[/tex]

Step-by-step explanation:

[tex]suppose, a=?[/tex]

[tex]a+126+16=180[/tex]

[tex]a+142=180[/tex]

[tex]a=180-142[/tex]

[tex]a=38[/tex]

[tex]NOW,[/tex]

[tex]a+16+3x=180[/tex]

[tex]38+163x=180[/tex]

[tex]54+3x=180[/tex]

[tex]3x=180-54[/tex]

[tex]3x=126[/tex]

[tex]x=126/3[/tex]

[tex]x=42[/tex]

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

hope it helps..

have a great day

Find the greatest common factor (GCF) of the set of numbers.


21, 30, 44

Answers

Step-by-step explanation:

Answer attached :)

Hope it helps :D

i need help really please ​

Answers

It has to be lower than 6 but no less than 2, so the answer is B (if you want a more detailed explanation just comment below and I’ll explain with more detail)

Answer:

B. 2, 3, 4, 5

Step-by-step explanation:

Whatever number you plug in the blank, the number it creates must be in between 0.362 and 0.321, because it's sorted from greatest to least and it is in the middle

The only option that works is B. The other options either don't have all possible numbers or have some that don't fit the boundaries.

If you apply the changes below to the
quadratic parent function, f(x) = x^2
what is the equation of the new
function?
• Shift 7 units right.
• Shift 3 units up.

Answers

Answer: Step-by-step explanation:

f(x) = (x-7)^2+3

A high school student volunteers to
present a report to the administration about the types of lunches students prefer.
He surveys members of his class and records their choices. What type of sampling did the student use?
systematic random sampling
voluntary sampling
• convenience sampling
stratified sampling

Answers

Need this answer for a school paper

Answer:

convenience sampling

Step-by-step explanation:

Each of the 32 candidates can be assigned a unique sequence of outcomes of the 5 coin flips (e.g., HHHHH, HHHHT, etc). Use a systematic method to assign these sequences. One method is started in the table below. The first four sequences are filled in, along with the last. Complete the table of possibilities.


Member Sequence Member Sequence Member Sequence Member Sequence
Tim HHHHH Eden Kirsten Tabitha
Meg HHHHT Wilburn Wilson Flossie
Raleigh HHHTH Valerie Doris Pearle
Ashton HHHTT Ramón Ward Angela
Sherrill Gala Gayle Alana TTTHH
Jarod Bertie Tatyana Charley TTTHT
Rudy Hermila Janet Jennifer TTTTH
Junie Alesia Mario Lisa TTTTT

Answers

Answer:

Step-by-step explanation:

Edmentum answer

its in the screenshot

Answers

Step-by-step explanation:

Morgan    12 ras     12× 3   black          Total     12×4 or 12 + 3 × 12 =  48 berries

Kendra   picked 9 × Morgan's Total

    Kendra picked   (12 +(3 × 12)) × 9       =   48 × 9     = 432 berries

A storage tank contains a liquid radioactive element with a half-life of 96 years. It will be relatively safe for the contents to leak from the tank when 0.02% of the
radioactive element remains. How long must the tank remain intact for this storage procedure to be safe?
The tank must remain intact for lears.
(Round the base of the exponential function to four decimal places. Then round the final answer to the nearest year as needed.)

Answers

Answer:

t = 1180 years

Step-by-step explanation:

We will solve this using the radioactive decay formula which is;

A = A_o × 2^(-t/h)

Where;

A = Amount of liquid remaining after time (t)

A_o = initial amount of liquid at initial time

t = time of decay

h = half-life of the liquid

We have;

A_o = 1(we assume it is 100% which is 1)

A = 0.02% = 0.0002

h = 96 years

Thus;

0.0002 = 1 × 2^(-t/96)

0.0002 = 2^(-t/96)

(-t/96)log 2 = log 0.0002

(-t/96) = (log 0.0002)/log 2

(-t/96) = -12.2877

t = 96 × 12.2877 (negative has canceled out)

t = 1179.6192

To the nearest year gives;

t = 1180 years

The Gordon family has a disposable annual income of $44,350. They spend 19% of their disposable income for food. How much do they spend weekly for food (Note: There
are 52 weeks in a year)?
$149.43
$158.77
$162.05
$165.23
None of these choices are correct.

Answers

Answer:

$162.05

Step-by-step explanation:

Calculation to determine How much do they spend weekly for food

Using this formula

Amount spent weekly=(Annual Disposable income*Disposable income percentage)/Numbers of weeks in a year

Let plug in the formula

Amount spent weekly=($44,350*19%)/52 weeks

Amount spent weekly=$8,426.5/52 weeks

Amount spent weekly=$162.048

Amount spent weekly=$162.05 (Approximately)

Therefore the amount they spent weekly for food is $162.05

PLEASE HELPPPPPP :(((((​

Answers

36/10 = 2 + 3/5, 27/5 = 5 + 2/5, 32/6 = 5 + 1/3, 30/9 = 3 + 1/3, 30/7 = 4 + 2/8, 54/8 = 6 + 3/4

What is the value of x in the equation 10 = 3/5 x + 1?
A. 6
D. 16
B. 7 C. 15

Answers

the answer is C. 15.........

Find the absolute value
|-7|

Answers

Answer:

7

Step-by-step explanation:

hello :

|-7| = - (-7) = 7

Answer:

the absolute value of l-7l is 7

hope it helps.

How can I solve this?

Answers

Answer:

a

Step-by-step explanation:

bc dats highest point

The Answer is B

............

A serving of rice is 1/3 of a cup. How many servings are there in a 1 1/3-cup bag of rice?

Answers

Answer:

4 cups

Since 1 1/3 is 1/3 x 4 that means there are 4 servings

Hope this Helps!

Answer:  4 servings

========================================================

Explanation:

It might help to imagine that you had a measuring spoon that is 1/3 cup. Note how exactly three of them gets you to a full cup since 3*(1/3) = 3/3 = 1.

Adding another helping of the measuring spoon gets you to the mixed number of 1 & 1/3. This is because the mixed number 1 & 1/3 is identical to the math expression 1 + (1/3). We add the fractional portion 1/3 on top of the whole number 1. That's why the verbal form of this is "one and one-third". The "and" says "add" more or less.

In short, we need 3 servings to get to one full cup. Then that fourth serving will get us to 1 & 1/3 cup.

3
) A basket filled with tomatoes had a mass of 2330 g. After 3/5 the tomatoes were

taken away, the mass of the basket with the remaining tomatoes was 1550 g
What was the mass of the empty basket?

Answers

Answer: 1030 g

Step-by-step explanation:

Given

Mass of basket and the tomatoes is 2330 g

After [tex]\frac{3}{5}[/tex] of tomatoes were taken away, the mass with the basket is 1550 g

Suppose x is the mass of tomatoes and y is the mass of the basket

[tex]\therefore x+y=2330\quad \ldots(i)\\\\y+(1-\dfrac{3}{5})x=1550\\\\y+\dfrac{2}{5}x=1550\quad \ldots(ii)[/tex]

Solve the above equations. We get

[tex]x=1300,y=1030[/tex]

So, the mass of the empty basket is 1030 g.

Simplify 6x^2y^3(2x^2y)^3

Answers

Answer: 6x2y3(2x2y)3

=48x^8 y^6

Find the area of the regular octagon

Answers

Answer choices?...........

Answer:

8 is the answer of this question

Josie makes peanut butter sandwiches. She uses 1/8 cup of peanut butter on each sandwich. How many cups of peanut butter dose she need for 9 sandwiches?

Answers

Answer:

9/8

Step-by-step explanation:

.........................

Due tomorrow! Please

Answers

The answer is 79 because 9/10 divided by 71.1 is 79. And if you want to check, you can multiply 9/10 by 79, which will give you 71.1. I hope this helped :)

9. The school record for the most points scored in a football season
is 85. Lawrence has 44 points so far this season. How many more
points does he need to break the record?

Answers

Answer:

42 More Points

Step-by-step explanation:

Subtract the record with Lawrence's current amount to get 41. BUT, we are not done, we want to BREAK the record, not just reach it so we need to add one to get our answer of 42.

Solve for x
9(x - 2) = 18

Ox=0
OX= 20/9
O x = 16/9
Ox=4

Answers

Answer:

x=4

Step-by-step explanation:

Multiply 9 to x and -2

You get 9x-18=18

add 18 to both sides

you get

9x=36

divide 9 from both sides

x=4

Solution:-9(x - 2) = 18

=> 9x - 18 = 18

=> 9x = 18 + 18

=> 9x = 36

=> x = 36/9

=> x = 4 (Ans)

an outdoor pavilion has 30 rows with 20 seats in the first row each row thereafter has 6 more seats using a formula find the total of seats at the pavilion

Answers

The file isn’t working on my phone

A Union worker is to see an increase in pay of 2.5% per year next year. Her salary is $41,000/yr. If inflation was predicted to be 1.9% for the upcoming year, how much more purchasing power would she have in dollars next year?

Answers

Answer:

i need points rq thanks so much

Step-by-step explanation:

imma go waste these points now

She'll have $246 more purchasing power.

Current salary per year = $41000

Next year salary = $41000 × (2.5% × $41000)

= $41000 + (0.025 × $41000)

= $41000 + $1025

= $42025

Effect of Inflation will be:

= $41000 + (1.9% × $41000)

= $41000 + (0.019 × $41000)

= $41000 + $779

= $41779

Therefore, the difference will be:

= $42025 - $41779

= $246

Read related link on:

https://brainly.com/question/21659608

Find the difference.


(2x3y − 8y + 9x3) − (6y + 6x3 − 3x3y) =

Answers

Answer:

15xy-14y+9x.

Step-by-step explanation:

Question 5
A round spinner is divided into five sections, where the sections do not have the same size. Using the measure of the interior angles, the probability of the spinner landing on any individual space on
a spin is calculated and given in the table.
©
1
3
4
5
Section
Probability
2
0.20
0.40
0.20
0.15
0.05
A statistics student is asked to test the integrity of the spinner using a chi-square goodness-of-fit test. What is the minimum number of times the spinner should be spun to conduct this test?

Answers

Answer:

The correct answer is 100

I walk into the Psych department and notice that there is a large box of differently colored pens and pencils being given away for free. There are: 8 red pens 4 red pencils 6 blue pens 10 blue pencils 15 black pens Report all probabilities as a decimal rounded to FOUR decimal places. YOU MUST SHOW YOUR WORK TO GET FULL CREDIT! What is the probability of reaching in twice and first pulling out a blue item and then either a red pencil or a black pen WITH REPLACEMENT

Answers

Answer:

= 2608/8729 which is approx. 30%

Step-by-step explanation:

Probability (Blue, Red Pencil OR Black Pen)

= 16/43 x (4/14 + 15/29)

= 16/43 x 163/203

= 2608/8729

answer 7 and 8 for 16 points

Answers

9514 1404 393

Answer:

  7)  42 yd²

  8)  32 in²

Step-by-step explanation:

Put the given numbers in the appropriate area formula and do the arithmetic.

__

7) The area of a triangle is given by the formula ...

  A = 1/2bh . . . . . where b is the base length and h is the height

  A = 1/2(12 yd)(7 yd)

  A = 42 yd²

__

8) The area of a parallelogram is given by the formula ...

  A = bh

  A = (8 in)(4 in)

  A = 32 in²

NEED 22-24 AND 31-33 FAST

Answers

Answer:

22-24= -2

31-33= -2

Step-by-step explanation:

Carl is balancing his checking account. After comparing the bank statement to his register, he notices an outstanding debit of $58.00.

Which shows the correct amount in Carl’s checking account?

Answers

Tamam öğretmenim teşekkür ederiz çok güzel bir şey var ya bir insan bir arar bir şey

You and your friend enter a drawing with 3 different prizes. A total of 11 people entered the drawing, and prizes are awarded randomly.
There are 990 ways to award the prizes.
What is the probability that you win first prize and your friend wins second prize?
A. [tex]\frac{1}{11}[/tex]
B. [tex]\frac{9}{990}[/tex]
C. [tex]\frac{1}{990}[/tex]
D. [tex]\frac{11}{990}[/tex]

Answers

The probability that you win first prize and your friend wins second prize is given as follows:

B. 9/990.

How to calculate a probability?

A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.

The total number of outcomes is given as follows:

990.

The number of desired outcomes is of 9, as:

You win the first prize.Your friend wins the second prize.There are 11 - 2 = 9 people that can win the third prize.

Hence:

1 x 1 x 9 = 9.

Meaning that the probability is of:

p = 9/990.

More can be learned about probability at https://brainly.com/question/24756209

#SPJ1

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