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3 years ago

Can someone please help me with this question

Mathematics

1 answer:

Rudiy273 years ago

5 0

Answer:

volume= 186ft

Step-by-step explanation:

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Look at this triangle B 11 cm 4 cm A4 C Work out length AC.pythagoras

german

Answer:

11.7 cm

Step-by-step explanation:

Using Pythagoras Theorem

AC² = AB² + BC²

AB = 4 cm

BC = 11 cm

AC² = 4² + 11²

AC = √4² + 11²

AC =✓137

AC = 11.704699911 cm

Approximately = 11.7 cm

Length AC = 11.7cm

6 0

3 years ago

A 9' x 9' square has a corner removed that measures 2 feet by 2 feet. What is the new area of the larger shape in feet?

sveta [45]

9*9=81
2*2=4
81-4=77
77 square feet.

Hope this helps :)

5 0

3 years ago

Read 2 more answers

wolverine [178]

Answer:

Ivy is 6 years old and Rose is 12 years old.

Step-by-step explanation:

To solve this problem, two variables are necessary since we have two unknown variables: Ivy's age and Rose's age.

Ivy's age will be $x$

and Rose's age will be $y$

"Ivy is half as old as her sister":

$x=\frac{y}{2}$

this will be our fist equation.

"In six years, Ivy will be two-thirds as old as Rose"

in six years Ivy will have $x+6$ years, and Rose will have $y +6$ years, so for this sentence we have the equation:

$x+6=\frac{2}{3}(y+6)$

this will be our second equation.

Substituting the value of x from the first equation into the second, and solving for y(Rose):

$\frac{y}{2}+6=\frac{2}{3} (y+6)\\\frac{y+12}{2} =\frac{2}{3} (y+6)\\y+12=\frac{4}{3} (y+6)\\3(y+12)=4(y+6)\\3y+36=4y+24\\36-24=4y-3y\\12=y$

Rose is 12 years old.

and Ivy (using the fist equation):

$x=\frac{12}{2}=6$

Ivy is 6 years old.

6 0

4 years ago

Find the value of 9!/ (9-2)!

dem82 [27]

Answer:

Step-by-step explanation:

$n!=1\cdot2\cdot3\cdot...\cdot n\\\\\dfrac{9!}{(9-2)!}=\dfrac{9!}{7!}=\dfrac{7!\cdot8\cdot9}{7!}\qquad\text{cancel}\ 7!\\\\=8\cdot9=72$

5 0

3 years ago

What is the least common denominator between 5/6, 2/9 1/12, 3/8 5/9, 2/15

mrs_skeptik [129]

LCD is least common denominator, also called least common multiple LCM
5/6, 2/9 LCD is 18
1/12, 3/8 LCD is 24
5/9, 2/15 LCD is 45

18, 24, and 45 are the least common multiples of the denominators for their own pair.
:)

4 0

4 years ago

Read 2 more answers