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3 years ago

Help quickly please!

Mathematics

1 answer:

Kisachek [45]3 years ago

3 0

Answer:

Step-by-step explanation:

Given: $GF=\frac{1}{2}GC$ ,

$GE=\frac{1}{2}GD$ and $EF=\frac{1}{2}DC$

To prove: ΔGFE is similar to ΔGCD.

Proof: Since, $\frac{GF}{GC}=\frac{1}{2}$ , $\frac{GE}{GD}=\frac{1}{2}$ and $\frac{EF}{DC}=\frac{1}{2}$ , therefore

$\frac{GF}{GC}=\frac{GE}{GD}=\frac{EF}{DC}$

Hence, by transitive property of equality, ΔGFE is similar to ΔGCD.

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Solve the equation x³ = -115

aleksley [76]

Hello!

Equation: $x^3=-115$

To solve, we will need to take the roots:

$x = (-115)^{(\frac{1}{3} )}$

Answer:

$x=-\sqrt[3]{115}$ or $x=-4.862944$

3 0

2 years ago

Violin strings are parallel. Viewed from above, a violin bow in two different positions forms two transversals to the violin str

V125BC [204]

Answer:

Step-by-step explanation:

8x + y = 100 (alternate exterior angles are congruent)

4x + y = 60 (corresponding angles are congruent)

Subtract the second equation from the first equation.

4x = 40

x = 10

Substitute x = 10 in first equation and solve for y.

8(10) + y = 100

y = 20

3 0

3 years ago

Long explanation for 4 9/14 - 2 6/7 + 8 5/6=<br><br>The answer is 10 13/21 but I can not get that.

Ber [7]

Answer:

10 13/21

Step-by-step explanation:

Convert mixed numbers into improper fractions

4 9/14 --> 65/14

2 6/7 --> 20/7

8 5/6 --> 53/6

Then calculate

65/14 - 20/7 + 53/6

Before that write it into a common denominator of 42

(195-120+371)/42

That would equal to 446/42

Divide it by 2

That would equal to 223/21

Then 223/21 = 10 13/21

P.S!!!

Don't blindly trust me, check before with others

And also hope it helped

3 0

3 years ago

Find the median: 12, 5, 9, 18, 22, 25, 6, 15, 28, 14, 8, 24

Illusion [34]

Answer:

14.5

Step-by-step explanation:

3 0

3 years ago

This is science just please look at the pic and answer if you know don’t answer if you don’t know don’t steal points

STatiana [176]

Answer:

1) a body of air with horizontally uniform temperature, humidity, and pressure.

2) the foremost part or surface of anything. the part or side of anything that faces forward: the front of a jacket.

3) A cold front is often associated with showers and thunderstorms. As it advances, often quite rapidly (50 to 65 km [30 to 40 miles] per hour), the cold air, which is relatively dense, undercuts the displaced warm air, forcing it to rise.

4) Cold Fronts. When a cold front passes through, the weather becomes significantly colder and drier. (It isn't uncommon for air temperatures to drop 10 degrees Fahrenheit or more within an hour of a cold frontal passage.) The weather map symbol for a cold front is a blue curved line with blue triangles.

5) When a cold front passes through, temperatures can drop more than 15 degrees within the first hour. Symbolically, a cold front is represented by a solid line with triangles along the front pointing towards the warmer air and in the direction of movement.

Step-by-step explanation:

Last part ----------------------------------------------------------------------------------------------------------------->

4 0

3 years ago