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3 years ago

Can someone help me out?

Mathematics

2 answers:

Andreyy893 years ago

5 0

The answer would be around 4.5 or 4.6

sweet [91]3 years ago

5 0

It would be 4.57 or 4.6

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Can someone help me please ASAP

zmey [24]

Answer:

solution,

Let <DEF= x°

<CDE= 2x°

<BAF= 90°

The sum of interior angle of hexagon= 720°

<A + <B + <C + <D + <E +<F = 720°

$90 + 145 + 115 + 2x + x + 160 = 720 \\ 510 + 3x = 720 \\3x + 510 = 720 \\ 3x + 510 - 510 = 720 - 510 \\ 3x = 210 \\ \frac{3x}{x} = \frac{210}{3} \\ x = 70 \: degree$

Again,

$< \: cde = 2x \\ \: \: \: \: \: \: \: \: \: \: \: \: = 2 \times 70 \\ \: \: \: \: \: \: \: \: \: \: \: \: = 140 \: degree$

Hope this helps...

Good luck on your assignment..

4 0

3 years ago

Evaluate 3x² - 4xy + 2y² - 1 for x = - 3 and y = 5

zhannawk [14.2K]

Answer:

$3x^{2} - 4xy + 2y { }^{2} - 1 \\ 3 \times ( - 3) { }^{2} - 4 \times ( - 3) \times 5 + 2 \times 5 {}^{2} - 1 \\ (3 \times 9) - ( - 60) + 50 - 1 \\ 27 + 60 + 50 - 1 \\ 165$

8 0

1 year ago

Read 2 more answers

Evaluate the expression 5x-3x+5 for each value of x

kirza4 [7]

Answer:

2x+5

Step-by-step explanation:

Hope I helped :)

4 0

3 years ago

One teacher wants to give each student 7 over 9 of a slice of pizza. If the teacher has 7 slices of pizza, then how many student

Anna007 [38]

Total = 7 slices.
1student = 7/9 of a slice.

Total number of students:

$7 \div \dfrac{7}{9}$

$= 7 \times \dfrac{9}{7}$

$= 9$

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Answer: She will be able to hand out to 9 students.
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3 0

3 years ago

HELP I NEED HELP ASAP

masha68 [24]

Answer:

i think it's c but I'm rly not sure on this one...

3 0

2 years ago