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3 years ago

A square picture frame occupies an area of 112 ft^2. What is the length of each side of the picture in simplified radical form?

1 answer:

6 0

The answer is 4√7.

Area (A) of a square can be expressed as the square of its side (a):
A = a²

It is given:
A = 112 ft² = a²
⇒ a² = 112 ft²
⇒ a = √112 = √(16*7) = √16 * √7 = √(4²) * √7 = 4 * √7 = 4√7

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Find their total volume if x=10 feet, y=12 feet, and z= 7 feet

saveliy_v [14]

The volume would be 840 feet

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3 years ago

ana wants to earn 88 percent in her chemistry class she has one quiz left to take on the first 5 quizzes she received a 74 perce

Alinara [238K]

Answer: 91

Step-by-step explanation: I assume you had a typo and mean what did Ana need on the 5th quiz since you only listed 4 quiz scores.

(74 + 92 + 83 + 100 + x)/5 = 88

(349 + x)/5 = 88

((349 +x)/5) x 5 = 88 x 5

349 + x = 440

x = 440-349

x = 91

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3 years ago

In a factory 80 workers were female and 120 male what was the percentage of female workers?

Elena L [17]

Answer: Percentage of female workers = 40%

Step-by-step explanation: No of Female workers = 80

No of Male workers = 120

Total No of workers = 120+80= 200

percentage of female workers =80 of 200%= 40

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3 years ago

Please help i will mark brainliest

Evgen [1.6K]

Answer:

2. $\left[\begin{array}{ccc}1&4\\0&3\\\end{array}\right]$

3. $\left[\begin{array}{ccc}-3&21&60\\-15&9&-45\\\end{array}\right]$

4. $\left[\begin{array}{ccc}6&-14\\-2&-6\\\end{array}\right]$

Step-by-step explanation:

2. This matrix is easy, as it just requires addition.

$\left[\begin{array}{ccc}1&4\\0&3\\\end{array}\right]$ + $\left[\begin{array}{ccc}0&0\\0&0\\\end{array}\right]$ = $\left[\begin{array}{ccc}1&4\\0&3\\\end{array}\right]$

3. This matrix requires for the matrices to be multiplied first, then added.

$\left[\begin{array}{ccc}9&-15&18\\-27&15&-9\\\end{array}\right]$ + $\left[\begin{array}{ccc}-12&36&42 \\12& -6 & -36 \\\end{array}\right]$ = $\left[\begin{array}{ccc}-3&21&60\\-15&9&-45\\\end{array}\right]$

4. Here we can add the last 2 matrices to find x.

$\left[\begin{array}{ccc}2&-8\\-4&2\\\end{array}\right]$ + $\left[\begin{array}{ccc}4&-6\\2&-8 \\\end{array}\right]$ = $\left[\begin{array}{ccc}6&-14\\-2&-6\\\end{array}\right]$

Hope this helps! (Please consider giving brainliest)

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3 years ago

What is the probability of choosing a king from a deck of cards? Type your answer as a fraction.

Vikki [24]

Answer:

4/52 or 1/13

Step-by-step explanation:

there are only 4 kings; diamond, Heart, Spades and Clubs.

4 0

3 years ago

Read 2 more answers