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2 years ago

PLS HELP TIMED QUESTION (I'll mark brainiest) Please show work if possible.

Mathematics

1 answer:

elena-s [515]2 years ago

5 0

Hello,

$sin(45^o)=\dfrac{\sqrt{2} }{2} \\\\sin(45^o)=\dfrac{a}{c} \\\\\dfrac{\sqrt{2} }{2}=\dfrac{a}{6} \\\\a=6*\dfrac{\sqrt{2} }{2}=3\sqrt{2}\\$

Answer A

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What is the reduce form of 10/ab+x

madam [21]

$\frac{10}{2 {ab}^{2} } \times \frac{ {a}^{2} {b}^{2}}{5}$

$= \frac{5}{2a {b}^{2} } \times {a}^{2} {b}^{2}$

$= \frac{5}{2a} \times {a}^{2}$

$= \frac{5 {a}^{2} }{2a}$

7 0

2 years ago

A cube is a special right rectangular prism with congruent sides. If a block of cheese is shaped like a cube with a length of 5

mariarad [96]

Answer:

125 cubic inches

Step-by-step explanation:

Hey There!

We can easily find the volume of a cube by cubing the side length

$5^3\\5*5=25\\25*5=125$

so we can conclude that the volume of the block of cheese is 125 cubic inches

7 0

2 years ago

Read 2 more answers

Brainliest is given to the correct answer!

OlgaM077 [116]

Answer:

a. $p = 2\pi r + 8r$

b. $r = \frac{p}{2\pi + 8}$

Step-by-step explanation:

a. Radius of semicircle (r) = r

Diameter of semicircle (d) = 2r

Length of rectangle (l) = 2*diameter of semicircle = 2*2r = 4r

Distance around the track (p) = circumference of circle + 2(l)

Note: the two semicircles of the track = 1 full circle

Circumference of full circle = πd = π*2r = 2πr

Distance around the track:

p = 2πr + 2(4r)

p = 2πr + 8r

b. Rewriting the formula to make radius, r, the subject of the formula in terms of distance around the track.

$p = 2\pi r + 8r$

Factor out r

$p = r(2\pi + 8)$

Divide both sides by (2π + 8)

$\frac{p}{2\pi + 8} = \frac{r(2\pi + 8)}{2\pi + 8}$

$\frac{p}{2\pi + 8} = r$

$r = \frac{p}{2\pi + 8}$

6 0

3 years ago

Elisa is writing an algebraic expression for the phrase 5 less than a number

Alekssandra [29.7K]

The algebraic expression can be written as
x-5.

3 0

3 years ago

I have the answer but I have to show work help?

Marina86 [1]

See attached picture for steps

4 0

3 years ago