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2 years ago

This is for Geometry with angles if someone CAN PLEASE HELP SOON OMG THANK YOU SO MUCH IM STRUGGLING

Mathematics

1 answer:

Vadim26 [7]2 years ago

8 0

Answer:

1: 90,2: 136, 3: 70, 4: 35

Step-by-step explanation:

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Work out the volume of the shape

pashok25 [27]

Answer:

$\large\boxed{V=\dfrac{1,421\pi}{3}\ cm^3}$

Step-by-step explanation:

We have the cone and the half-sphere.

The formula of a volume of a cone:

$V_c=\dfrac{1}{3}\pi r^2H$

r - radius

H - height

We have r = 7cm and H = (22-7)cm=15cm. Substitute:

$V_c=\dfrac{1}{3}\pi(7^2)(15)=\dfrac{1}{3}\pi(49)(15)=\dfrac{735\pi}{3}\ cm^3$

The formula of a volume of a sphere:

$V_s=\dfrac{4}{3}\pi R^3$

R - radius

Therefore the formula of a volume of a half-sphere:

$V_{hs}=\dfrac{1}{2}\cdot\dfrac{4}{3}\pi R^3=\dfrac{2}{3}\pi R^3$

We have R = 7cm. Substitute:

$V_{hs}=\dfrac{2}{3}\pi(7^3)=\dfrac{2}{3}\pi(343)=\dfrac{686\pi}{3}\ cm^3$

The volume of the given shape:

$V=V_c+V_{hs}$

Substitute:

$V=\dfrac{735\pi}{3}+\dfrac{686\pi}{3}=\dfrac{1,421\pi}{3}\ cm^3$

7 0

2 years ago

Please help me solve this..<br>

Naddik [55]

Answer:

X<7. Graph 7. Then put a open circle and arrow it going left! And there you go.

Step-by-step explanation:

Add 18 to both sides. Since -2x has a negative, you flip the sign to less than instead of greater than.

7 0

2 years ago

What is the volume of a figure with that is 3 inches wide, 3 inches tall and 7 inches long?

Sever21 [200]

Answer:

Step-by-step explanation:

volume=3×3×7=63 inch³

4 0

2 years ago

I will give brainllits

Zina [86]

Answer:

image please

information is missing

4 0

2 years ago

a map has a scale 1: 50000. The distance between two towns on the map is 10cm. How far apart are the towns in real lfe . Give yo

GREYUIT [131]

Answer:

5 km

Step-by-step explanation:

the scans means that any distance on the map is 50000 times larger in real life.

so, 10 cm on the map is

10×50000 = 500000 cm in real life.

now, we know that 100cm = 1 m

so, it is 500000/100 = 5000 m in real life.

and there are 1000 m in 1 km.

so, it is 5000/1000 = 5 km in real life

7 0

2 years ago