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1 year ago

Does someone mind helping me with this answer? Thank you!

Mathematics

1 answer:

Lera25 [3.4K]1 year ago

3 0

Something that you should remember is that the sum of the angles of a triangle add up to 180°.

Since we are given 100° and that the other two angles are equal, we can set up an equation like this:

$180=100+2x$ , where x is the 2 angles.

Doing the math, the measure of each unknown angles is 40°.

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If CDE ~ GDF, find ED

qaws [65]

Answer:

Step-by-step explanation:

$\triangle CDE \sim \triangle GDF.. (given) \\\\\therefore \frac{CD}{GD} =\frac{DE}{DF}.. (csst) \\\\\therefore \frac{15}{x+3} =\frac{3x+1}{4}\\\\ \therefore \: 15 \times 4 = (x + 3)(3x + 1) \\ \\ \therefore \: 60 = 3 {x}^{2} + x + 9x + 3 \\ \\ \therefore 3 {x}^{2} + 10x + 3 - 60 = 0 \\ \therefore 3 {x}^{2} + 10x - 57 = 0 \\ \therefore 3 {x}^{2} + 19x - 9x - 57 = 0 \\ \therefore \: x(3x + 19) - 3(3x + 19) = 0 \\\therefore \: (3x + 19)(x - 3) = 0 \\ \therefore \: 3x + 19 = 0 \: \: or \: \: x - 3 = 0 \\ \therefore \: x = - \frac{19}{3} \: \: or \: \: x = 3 \\ \because \: x \: can \: not \: be \: - ve \\ \therefore \: x = 3 \\ ED = 3x + 1 = 3 \times 3 + 1 \\ \huge \red{ \boxed{ ED= 10}}$

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3 years ago

Ms. Gallegos burns calories riding her bike each hour. She wants to burn more than calories riding her bike at the same rate.

Leviafan [203]

i am not sure

but I think it is a

8 0

2 years ago

See image help me as fast as possible, please

Arada [10]

Answer: 11.4

Step-by-step explanation:

area of rect. = 24

area of circle (half circle+half circle = full circle) = pi*r^2 = pi*(2*2) = pi*4 = about 12.57

2 = radius since 4 = diameter

24-12.57 = 11.43

round = 11.4

3 0

3 years ago

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-3×1/4-6 please help im losing my mind

lora16 [44]

Answer:

-45/4 or -11.25

I'm pretty sure this is right hope it helps

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3 years ago

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GIVING BRAINLIEST IF YOU DO IT CORRECT

abruzzese [7]

We use the word argument to refer to a series of reasons given to support a claim. The claim being supported is the conclusion. The reasons given to accept the conclusion are called premises. Analyzing an argument means identifying its premises and conclusion.

Hope this helps! God bless you, have a good day~!

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3 years ago

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