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4 years ago

Please help :( please help :( please help :( please help :( please help :( please help :(

Mathematics

2 answers:

Hatshy [7]4 years ago

5 0

Answer:

Q 3. 75.4 yards cube

Q 4. 66 mm cube

Step-by-step explanation:

Q 3. V cylinder= 2pi r h

r=3 yd

h=4 yd

apply the values in formula

$2\pi \times 3 \times 4 = 75.4 \: yrds {}^{3}$

Q4. V triangular prism=1/2 a×b×h

a=3 mm

b=4 mm

h=11 mm

$0.5 \times 3 \times 4 \times 11 = 66mm {}^{3}$

Alexeev081 [22]4 years ago

3 0

Answer:

113.1

Step-by-step explanation:

Pi*r^2*h

Pi*3^2*4=113.1

Hope this helps

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PLEASE HELP GEOMETRY

kiruha [24]

Answer:

Hewo! Thanks for the question.

So, we have given a right angle triangle with adjacent side = 16 and let 74° is angle A, We have to find the perpendicular or x.

Let's move straight to the answering process,

According to question,

Tan74° = opp/adj

Tan74° = x/16

x = Tan74°×16

Tan74° is equals to 3.48,

x = 3.48×16

x = 55.8

Hope it helps!<3

7 0

3 years ago

Four-fifths the sum of twice a number and nine is equal to negative

wlad13 [49]

Answer:

The number should be -22

Step-by-step explanation:

4/5(2x + 9) = -28

2x + 9 = - 35

2x = - 44

X = -22

8 0

3 years ago

Convert 324 mm to cm

denpristay [2]

324mm = 324 ÷ 10 = 32.4cm

5 0

3 years ago

Read 2 more answers

Factor 18x^2-3x+24x-4

zhannawk [14.2K]

3x(6x-1)+4(6x-1)

(3x+4)(6x-1) is the answer

5 0

3 years ago

The longer leg of a right triangle is 7 ft longer than the shorter leg. The hypotenuse is 9ft longer than the shorter leg. Find

julia-pushkina [17]

Answer:

8, 15 and 17 feet respectively

Step-by-step explanation:

Let the shorter leg=l feet

The longer leg of a right triangle is 7 ft longer than the shorter leg, therefore Length of the longer leg=(l+7) feet

The hypotenuse is 9ft longer than the shorter leg. Therefore Length of the hypotenuse=(l+9) feet

Using Pythagoras Theorem

$Hyp^2=Opp^2+Adj^2\\(l+9)^2=l^2+(l+7)^2\\(l+9)(l+9)=l^2+(l+7)(l+7)\\l^2+9l+9l+81=l^2+l^2+7l+7l+49\\l^2+18l+81=2l^2+14l+49$

This results into:

$2l^2-l^2+14l-18l-81+49=0$

$l^2-4l-32=0\\l^2-8l+4l-32=0\\l(l-8)+4(l-8)=0\\(l-8)(l+4)=0$

l-8=0 or l+4=0

l=8 or -4

Since length cannot be negative, The length l=8 feet

The sides of the rectangle are therefore: 8, 15 and 17 feet respectively

5 0

3 years ago

Please help :( please help :( please help :( please help :( please help :( please help :(​

Please help :( please help :( please help :( please help :( please help :( please help :(