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3 years ago

Can someone help me with this problem please.

Mathematics

2 answers:

valentina_108 [34]3 years ago

8 0

The answer would be 85

Elodia [21]3 years ago

4 0

The answer would be 85

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Solve the system of equations.

notka56 [123]

Answer:

Step-by-step explanation:

replace y with 5 giving you 5 = x^2 - 4 then solve giving you x^2 = 9 and then square the 9 giving you x = 3

5 0

3 years ago

Can you please help me...........

Mrrafil [7]

516725352952437353426373

3 0

3 years ago

Read 2 more answers

Calculate the volume of the composite shape please please help giving brainliest!!

Ilya [14]

${\qquad\qquad\huge\underline{{\sf Answer}}}$

There are two hemispheres in there with radius 3 cm, so we can consider it as a whole one. and the other shape in between is Cylinder with radius 3 cm and height 4 cm.

Volume of whole ahape = volume of Cylinder + volume of sphere ~

Volume of sphere :

$\qquad \sf \dashrightarrow \: \cfrac{4}{3} \pi {r}^{3}$

$\qquad \sf \dashrightarrow \: \cfrac{4}{3} \sdot3.14 \sdot {(3)}^{3}$

$\qquad \sf \dashrightarrow \: (4 )\sdot(3.14) \sdot(9)$

$\qquad \sf \dashrightarrow \: 113.04 \: \: cm {}^{3}$

Volume of Cylinder :

$\qquad \sf \dashrightarrow \: \pi {r}^{2} h$

$\qquad \sf \dashrightarrow \: 3.14 \cdot(3) {}^{2} \sdot4$

$\qquad \sf \dashrightarrow \: 3.14 \sdot(9) \sdot(4)$

$\qquad \sf \dashrightarrow \: 113.04 \: \: cm {}^{3}$

Volume of whole shape :

$\qquad \sf \dashrightarrow \: 113.04 + 113.04 = 226.08 \: \: cm {}^{3}$

$\qquad \sf \dashrightarrow \: 226.08 \: \: cm {}^{3}$

8 0

2 years ago

A man spent 12.5%of his money and he is left with 140 . How much money had he at first ?

STALIN [3.7K]

Answer:

$157.50

Step-by-step explanation:

Add 12.5 % to 140

8 0

3 years ago

The height of a triangle is four times the length of the base. Find the base and height of he riangle if the area is 18 square i

Katarina [22]

Answer:

its 124

Step-by-step explanation:

i had a test with the same question, i promise its right :)

6 0

3 years ago