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3 years ago

Which statements are true regarding the prism? Check

Mathematics

2 answers:

Elodia [21]3 years ago

7 0

Answer: B, C, E

Step-by-step explanation: dude trust me c'mon

Viktor [21]3 years ago

6 0

Answer:

The prism has 9 edges, The bases of the prism are triangles, and the prism has 5 faces.

Would really appreciate a brainliest! Hope this helped! =)

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angle 1 and angle 2 are complementary angles. given the following information, find measures of both angles

kifflom [539]

∠1 and ∠2 are complementary.
∠1 + ∠2 = 90°

Question a:

∠1 = 23°
∠2 = 90 - 23 = 67°

Ans: 67°

Question b:
∠1 = x
∠2 = 2x + 3
x + 2x + 3 = 90
3x + 3 = 90
3x = 90 - 3
3x = 87
x = 29

∠1 = 29°
∠2 = 2(29) + 3 = 61°

Ans: ∠1 = 29°, ∠2 = 61°

7 0

4 years ago

A carpenter purchased 70 ft of redwood and 80 ft of pine for a total cost of $351. A second purchase, at the same prices, includ

elena55 [62]

Hey there!!

Let us take the cost of 1 feet redwood as ' x '

Let us take the cost of 1 feet pine as ' y '

For the first scenario :

70 ft red wood and 80 ft pine

1 feet redwood - $x

70 feet redwood - $70x

1 feet pine - $y

80 feet pine - $80y

Total = $351

70x + 80y = 351 --------------------------------- ( 1 )

Second scenario :

1 feet redwood - $x

100 feet redwood - $100x

1 feet pine - $y

60 feet pine - $60y

total - $420

100x + 60y = 420 ----------------------- ( 2 )

Now let us get both the equations together :

70x + 80y = 351 ------------- ( 1 )

100x + 60y = 420 ------------- ( 2 )

Now let us multiply the the 1st equation with 3 and the 2nd equation with 4

3 ( 70x + 80y ) = 3 ( 351 )

4 ( 100x + 60y ) = 4 ( 420 )

............................

210x + 240y = 1053

400x + 240y = 1680

...........................

Now let us subtract the first equation from the second ...

400x + 240y = 1680

- ( 210x + 240y ) = - ( 1053 )

......................

190x = 627

dividing by 160 on both sides

x = 627 / 190

x = 3.3

The cost for 1 feet or per foot for the redwood is $3.3

Now substitute the value of x in any given given equation and find out y

I will substitute in the 1st equation

70x + 80y = 351

70 ( 3.3 ) + 80y = 351

231 + 80y = 351

Subtracting by 231 on both sides

80y = 351 - 231

80y = 120

dividing by 80 on both sides

y = 120 / 80

y = 1.5

The cost for 1 feet or per foot for the pine = $1.5

The answers - $3.3 ( redwood ) ; $1.5 ( pine )

Hope my answer helps!

4 0

3 years ago

PLEASE HELP ASAP THANK YOUUUU

34kurt

Answer:

972π m³

Step-by-step explanation:

given

in a sphere

radius (r) = 9 m

Volume (V ) = ?

so we know

The formula for the volume of a sphere is V = 4/3 πr³.

now

V = 4/ 3 * π * 9³

V = 972π m³

hope it helps :)

8 0

3 years ago

Read 2 more answers

Cos(0)=square root 3/3, sin 0<0. what is the value of sin0

abruzzese [7]

Answer:

sin θ = $\frac{\sqrt{6} }{3}$

Step-by-step explanation:

Given that,

cos θ = $\frac{\sqrt{3} }{3}$

From the trigonometric functions,

cos θ = $\frac{adjacent}{hypotenus}$

⇒ adjacent = $\sqrt{3}$ , and the hypotenuse = 3

Let the opposite side be represented by x, applying the Pythagoras theorem we have;

$/hyp/^{2}$ = $/adj/^{2}$ + $/opp/^{2}$

$/3/^{2}$ = $(\sqrt{3} )^{2}$ + $x^{2}$

9 = 3 + $x^{2}$

$x^{2}$ = 9 - 3

= 6

x = $\sqrt{6}$

Thus, opposite side = $\sqrt{6}$

So that,

sin θ = $\frac{opposite}{hypotenuse}$

= $\frac{\sqrt{6} }{3}$

Therefore,

sin θ = $\frac{\sqrt{6} }{3}$

6 0

3 years ago

Please someone help me! ASAP

Anarel [89]

Answer:

103

Step-by-step explanation:

the line is 180 degree angle also know as a straight angle if you take the 40 and the 33 away from 180 you are left with 103 and that is angle a

8 0

3 years ago