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Artyom0805 [142]
3 years ago
7

Help please this is so hard I don't understand it​

Mathematics
1 answer:
Zina [86]3 years ago
5 0

Answer:

<ABC = 15

< BAC = 150

Step-by-step explanation:

<C = <B since this is an isosceles triangle.  We know this because AC = AB

<C = 15 so <ABC = 15

The sum of the angles of a triangle is 180

A + B+ C = 180

A + 15+15 = 180

A +30 =180

A = 180-30

A = 150

< BAC = 150

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Starting at home, Emily traveled uphill to the hardware store for 60 minutes at just 6 mph. She then traveled back home along th
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Its 8 mph and its not 24 mph


4 0
3 years ago
Read 2 more answers
Solve for x : x - 3(2 -x) = 4x - (x - 1) and explain please thanks
Hunter-Best [27]
Solving:
x - 3(2-x) = 4x - (x - 1)

Delete the first parentheses by the distributive property, with the distributive property, we multiply the '3' first, then resolve it and the second parentheses eliminate by changing the sign:
x - 6 + 3x = 4x - x + 1
<span>Now, put the numbers with letter (incognito) to the right and numbers without letter to the left, changing the signal when changing sides.
</span>x + 3x - 4x + x = 6 + 1
\diagup\!\!\!\!\!4x - \diagup\!\!\!\!\!4x + x = 7
\boxed{\boxed{x = 7}}\end{array}}\qquad\quad\checkmark

Answer:
\underline{The\:value\:of\:"x"\:is\:7}


8 0
4 years ago
The volume of a cylinder varies jointly as the square of the radius and the height. If the volume is 28pi cubic inches when the
nignag [31]

Answer:

1584 cu in.

Step-by-step explanation:

Since the volume varies jointly with the radius and height we have an equation V = kr^2h where k is the constant of variation

28 = 2^2(7)k = 28k

k = 1

Now V = r^2h

V = (12)^2(11) = 144(11) = 1584 cu in.

8 0
3 years ago
5x(3x+2)-4(2x-1)<br><br><br><br> Yea i needd help
UkoKoshka [18]

Answer: 15x² + 2x + 4

x = -2/3, 0, 1/2

Step-by-step explanation:

5x(3x + 2) - 4(2x - 1)

First, distribute:

15x² + 10x - 8x + 4

Combine like terms:

15x² + 2x + 4

This is your polynomial!

If you needed to solve for x, take your original factored polynomial and set each term equal to 0:

5x(3x + 2) - 4(2x - 1)

5x = 0

x = 0

3x + 2 = 0

3x = -2

x = -2/3

-4 = 0

No solution

2x - 1 = 0

2x = 1

x = 1/2

x = -2/3, 0, 1/2

Hope this helps!

4 0
4 years ago
Last night Danielle had a birthday party. 1/3 of the birthday cake was leftover. She wanted to share the leftover birthday cake
Reil [10]

Answer:

1/132

Step-by-step explanation:

1/3 ÷ 44 would be solved by multiplying 1/3 and 1/44 which is 1/132

4 0
3 years ago
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