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3 years ago

Select all the true statements.

Mathematics

1 answer:

lbvjy [14]3 years ago

5 0

Answer:

my answer is A, C, and D...................

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10 divided by 2 1/4 = 10/1 divided by what = 10/1 times what is = what

Anton [14]

Answer:

1st and 2nd Equation; what = 2.25, 3rd Equation; what = 4.44444

Step-by-step explanation:

40/4 / 9/4 = 40/9 = 4.44444

7 0

3 years ago

The area of the base of the oblique pentagonal pyramid is 50 cm2 and the distance from the apex to the center of the pentagon is

kirza4 [7]

Answer:

$\text{Height is }6\sqrt2cm$

$\text{The volume is }100\sqrt2cm^3$

Step-by-step explanation:

Given the area of the base of the oblique pentagonal pyramid is $50 cm^2$ and the distance from the apex to the center of the pentagon is 6 cm. The measure of ∠ACB is 45°.

we know that

ABC is a right triangle

∠ACB=45°

AC=hypotenuse------> 6 cm

$\sin 45^{\circ}=\frac{AB}{AC}$

$AB=AC\times \sin 45$

$AB=\frac{6}{\sqrt2}$

$AB=3\sqrt2$

$\text{Height is }6\sqrt2cm$

Now, volume of pyramid

$\text{Volume of the pyramid=}\frac{1}{3}\times \text{Area of the base}\times height$

Area of the base=50 cm²

$Height=6\sqrt2 cm$

so, $\text{volume of the pyramid=}\frac{1}{3}\times 50\times 6\sqrt2=100\sqrt2cm^3$

$\text{the volume is }100\sqrt2cm^3$

7 0

3 years ago

Read 2 more answers

Someone pls help me due in 30 min. Given that x and y show inverse variation, complete the table.

aivan3 [116]

Answer:

1st blank= $y_{1}$

2nd blank= $x_{1}$

3rd blank= $y_{2}$

3*27=81

so 1* $y_{1}$ =81

hence $y_{1}$ =81

9* $x_{1}$ = 81

$x_{1}$ =9

27* $y_{2}$ =81

$y_{2}$ =3

Thus solved.

Hope this helps.

Please mark me as brainliest.

8 0

3 years ago

A company sells sneakers and has a revenue that can be represented by the function R(s) = 80s – s2, where s represents the numbe

Harman [31]

Answer:

the second one is the answer

6 0

2 years ago

Solve y - 3x = 13 for y y = ?

vampirchik [111]

Answer:

y = 3x + 13

Step-by-step explanation:

Here, we want to solve for y

To solve for y, we simply are going to make y the subject of the formula

We have this as;

y - 3x = 13

y = 13 + 3x

3 0

3 years ago