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3 years ago

Please help me with this question

Mathematics

1 answer:

Vinvika [58]3 years ago

3 0

Tan(angle) = opposite/adjacent
tan(x) = 90/51
x = arctan(90/51)
x = 60.461217740442
which rounds to 60 when rounding to the nearest whole number

Answer: 60

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MIDDLE SCHOOL MATH- 4 QUESTIONS

Contact [7]

Answer:

( I am assuming that these are all fractions)

1. 14 $\frac{4}{7}$

2. 8

3. $\frac{4}{15}$

4. 5 $\frac{8}{11}$

Step-by-step explanation:

1. First you have to convert 15 into a fraction but it must have the same denominator causing the equation to look like 105/7 - 3/7= 102/7. But you cannot just leave the fraction like that it must be simplified 14 $\frac{4}{7}$

2. Three-fifths of an hour is 36 minutes. You would next multiply 5 by 60 which would the hours into minutes 5 x 60 = 300. You would then divide 300 by 36 which would give you 8.3333333333, which I just simplified it to 8

3. In order for you to multiply a fraction you would first multiply the top then the bottom. 12 x 6= 72, 15 x 18= 270. The fraction would look like 72/270 which is simplified to $\frac{4}{15}$ .

4. First I changed the fractions into improper fractions causing the fraction to look like 36/8 x 14/11 (I got these answers by 8 by 4 then adding 4, then for the next fraction I multiplied 11 by 1 then added 3.) 36 x 14= 1224, 11 x 8= 88 the fraction would look like 1,224/88 you would simplify to 5 $\frac{8}{11}$

Hope this helps

Please tell me if I made any mistakes I enjoy learning from them.

6 0

3 years ago

( 2x - 9) x ( x + 5 )

ira [324]

$2x \times x + 2x \times 5 - 9 \times x - 9 \times 5$

${2x }^{2} + 10x - 9x - 45$

${2x}^{2} + x - 45$

6 0

4 years ago

Read 2 more answers

Solve for w.

zzz [600]

Answer:

w = 24

Step-by-step explanation:

$\frac{5w}{8}$ = 15

Multiply both sides by 8.

5w = 15 × 8

= 120

Find w.

w = 120 ÷ 5

w = 24

3 0

3 years ago

write the equation In point slope form of the line with slope 2/5 and passing through the point (-8,1)

Dominik [7]

Point-slope:

y-y1= m(x-x1)

Plug in what you know.

y1= 1 and x1= -8

y-1= 2/5(x-(-8)
y-1= 2/5(x+8)

Distribute.

y-1=.4x+ 3.2 <- that is the final answer

I hope this helps!
~kaikers

5 0

3 years ago

The figure is made up of a hemisphere and a cone.

Dmitry [639]

Answer:

Volume of the figure = 2413.71 cubic inches.

Step-by-step explanation:

Volume of the figure = Volume of the hemisphere + Volume of the cone

= $\frac{2}{3} \pi r^{3} +\frac{1}{3} \pi r^{2} h$