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3 years ago

I can’t explain look at picture

Mathematics

1 answer:

const2013 [10]3 years ago

3 0

Answer:

x = 12.48

y = 13.22

Step-by-step explanation

Im not sure if its correct

10^2 + b^2 = 16^2

100 + b^2 = 256

b^2 = √156

b = 12.48

b= 12 ( If needed to round to the nearest whole number)

a^2 + 15^2 = 20^2

a^2 + 225 = 400

a^2 = √175

a = 13.22

a = 13 ( If needed to round to nearest whole number)

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2^5*5^2*(-6)^4<br> ___________<br> (-6)^2*2^3*5^2 simplify

gulaghasi [49]

Answer:

The answer is 144

Step-by-step explanation:

$\frac{ {2}^{5} \times {5}^{2} \times { - 6}^{4} }{ {2}^{3} \times {5}^{2} \times { - 6}^{2} }$

${2}^{2} \times {6}^{2} = \\ 4 \times 36 = 144$

5 0

3 years ago

Please help me with steps

Masteriza [31]

Answer:

224 cm³

Step-by-step explanation:

Decompose the figure into two cuboid.

Volume of the bigger cuboid = L*W*H

L = 7 cm

H = 7 cm

W = 4 cm

Volume of the bigger cuboid = 7*7*4 = 196 cm³

Volume of smaller cuboid = L*W*H

L = 7 cm

W = 2 cm

H = 2 cm

Volume of smaller cuboid = 7*2*2 = 28 cm³

✅Volume of the figure = 196 cm³ + 28 cm³ = 224 cm³

5 0

3 years ago

a man standing near a radio station antenna observes that the angle of elevation to the top of the antenna is 64 degrees. He the

mamaluj [8]

So hmm notice the picture below

thus $\bf \cfrac{y}{tan(64^o)}=\cfrac{y}{tan(46^o)}-100\implies 
\cfrac{y}{tan(64^o)}-\cfrac{y}{tan(46^o)}=-100
\\\\\\
y\left[ \cfrac{1}{tan(64^o)}-\cfrac{1}{tan(46^o)} \right]=-100\implies y=\cfrac{-100}{\frac{1}{tan(64^o)}-\frac{1}{tan(46^o)}}$

make sure your calculator is in Degree mode, since the angles are in degrees

8 0

3 years ago

Can someone please help me out

Fed [463]

Replace y with 0 and solve for x.

Exact Form: x = 3 + √2 , 3 −√2

Decimal Form: x = 4.41421356, 1.58578643

It is C and D

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4 years ago

: Use ratio language to describe the relationship of any two things you can think of. Example: For every 5 minutes of jogging, I

kotykmax [81]

For every 5 minutes of jogging, I ran 500 yards

To Find : Use ratio language to describe the relationship of any two things

Determine the unit rate

Solution:

every 5 minutes of jogging, I ran 500 yards

=> 500/5 = 100 yards/ minute

For every 20 minutes , I can type 1000 words in

unit rate = 1000/20 = 50 words per minute

For every 1 hr (60 minutes) I can solve 10 Questions

unit rate = 10/60 = 1/6 Question per minute

For every 10 minutes , i can read 5 pages

unit rate = 5/10 = 1/2 pages per minute

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3 years ago