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Yuri [45]
3 years ago
11

What is the m<BEC if m<AED = 179?

Mathematics
1 answer:
ra1l [238]3 years ago
8 0

m∠AED = m∠AEB + m∠BEC + m∠CED

179 = 105 + x + 40

x = 179 - (105+40) = 34

x = 34

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One number is nine more than twice another. If their sum is decreased by ten, the result is fourteen. Find the numbers.
slava [35]
6 and 9 I think, I'm not 100% sure thugh
3 0
3 years ago
To the nearest tenth, find the perimeter of ∆ABC with vertices A(-1,4), B(-2,1) and C(2,1).
swat32

First we need to find the length of each side of the triangle , and for that we need to use the distance formula, that is
d =\sqrt{(x_{2} -x_{1})^2 +(y_{2} -y_{1})^2}
AB = \sqrt{(1-4)^2 +(-2+1)^2}= \sqrt{10}
\sqrt{BC} = \sqrt{(1-1)^2 + (2+2)^2}=4
Perimeter is the sum of all sides.
Perimeter = AB + BC + AC = \sqrt{10}+4 +\sqrt{18}
Perimeter= 11.4

7 0
3 years ago
SOLVE FOR Y
marissa [1.9K]

Answer:

I      dont know

Step-by-step explanation:

8 0
2 years ago
Please help! (Geometry)
Gelneren [198K]

Answer:

x=5

From the dashed lines on the two sides of this triangle, we can see that these two sides are congruent, or equal, to each other.

In geometry, if a triangle has two congruent sides, then we can call it a <em>isosceles triangle</em>.

In an isosceles triangle, the corners  opposite the congruent  sides  are also congruent, meaning, that the angle measures of this triangle are: 88, 9x+1, and 9x+1.

We also know that angles in a triangle add up to 180 degrees.

So, we have: 88+(9x+1)+(9x+1) = 180

Simplifying: 18x + 2 = 92

Solving: 18x = 90, so x=5

Hope this helps!

4 0
3 years ago
a recipe for cookies calls for 10 1/6 cups of sugar. krystal has already put in 4 2/3 cups. how many more cups does she need to
DENIUS [597]

Answer:

5 1/2 cups

Step-by-step explanation:

10 1/6 = \frac{61}{6} cups

10 x 6 + 1

\frac{61}{6}

4 2/3 = \frac{14}{3} cups

4 x 3 + 2

\frac{14}{3}

Find a common denominator (6)

\frac{14}{3} = \frac{28}{6}

\frac{14}{3} · 2 = \frac{28}{6}

\frac{61}{6} - \frac{28}{6} = \frac{33}{6}

\frac{33}{6} or 5 1/2 cups

6 0
3 years ago
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