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3 years ago

Can someone help me with this geometry question!!!!!!PLEASE and can you show me how you got the answer please

Mathematics

2 answers:

Wittaler [7]3 years ago

7 0

Sides EF and DF are equal so that is an isosceles triangle and therefore angle D equals angle E
All triangles have angles that sum to 180 degrees.
180 = angle D + angle E + angle F
180 = angle D + angle E + 76
104 = angle D + angle E
and since angle D = angle E
they both equal 52 degrees.

baherus [9]3 years ago

6 0

This is simple. You will subtract 76 from 180. You will get 104. Then from there you will divide 104 by 2. You will get 52 which is your answer. This is the answer because this is a Isosceles Triangle.

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nexus9112 [7]

20/100 x 8000 = 1600
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The motorcycle is worth $3,200 after three years.

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3 years ago

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svlad2 [7]

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3 years ago

Can some one help me factor 6x^2+4x-10

Fudgin [204]

2(3x + 5) (x - 1)

This is done through factoring 2 out of the equation first...

2(3x^2 + 2x -5)

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4 years ago

Jake’s measures the height of a tree to be 74 3/8

goblinko [34]

I'm assuming the question is asking how tall the tree is if it has grown 2 3/4 inches.

The initial height of the tree is 74 3/8 inches and it grows 2 3/4 inches after six months. We can add these two numbers together to calculate the height of the tree now.

$74\frac{3}{8} + 2\frac{3}{4}$

Since these are both mixed numbers, we must find a common denominator to add our fractions. 8 is the lowest common denominator for 4 and 8. So:

$74\frac{3}{8} + 2\frac{6}{8}$

We can now add our whole numbers up (74 + 2) and add the numerators of the fractions together to get a single fraction ( $\frac{3}{8} + \frac{6}{8}$ ).

74 + 2 = 76

$\frac{3}{8} + \frac{6}{8} = \frac{9}{8}$

Putting these two together, we get $76 \frac{9}{8}$ , which is equal to $77\frac{1}{8}$ .

We can also turn this answer into an improper fraction. This is done by multiplying the whole number by the denominator and adding the numerator. So in this case:

77 x 8 = 616

616 + 1 = 617

The denominator stays the same, so our answer as an improper fraction would be $\frac{617}{8}$ .

So the tree is $77\frac{1}{8}$ inches tall, or $\frac{617}{8}$ inches tall.

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3 years ago

What is the area of a circle with a radius of 7 cm? (Use 3.14 for and round to the nearest tenth.)

VMariaS [17]

Answer:

A =153.9 cm^2

Step-by-step explanation:

We know the area of a circle is given by

A = pi r^2

We are given the radius and pi

A = 3.14 (7)^2

A =153.86 cm^2

Rounding to the nearest tenth

A =A =153.9 cm^2

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4 years ago

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