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cupoosta [38]
3 years ago
14

PLEASE HELP IM STRUGGLING!!

Mathematics
1 answer:
dem82 [27]3 years ago
3 0
Use the tangent-chord theorem:
The included chord-tangent angle is half the size of the intercepted arc.

The intercepted arc is "c".
The included chord-tangent-angle is the supplement of 110=70 degrees.
Therefore from the tangent-chord theorem, 70 degrees = half the size of arc "c"
=>
arc "c" = 2*intercepted angle = 2*70 degrees = 140 degrees.

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Solve for x in the equation x^2-10x+25=35.
KatRina [158]
So, this is too vague but I'll solve for both quadratic formula and find the discriminant.

Quadratic formula: <span>x=<span>5+<span><span><span>√35 OR</span><span> </span></span>x</span></span></span>=<span>5−<span>√<span>35
Finding the discriminant: 141</span></span></span>
3 0
3 years ago
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Find the surface area of a cone if the diameter of its base is 13.5 feet, and it has a slant height of 16.8 feet. Round to the n
Tresset [83]

The diameter is given which is 13.5feet and radius is half of diameter. Therefore radius = 6.75 feet.

Slant height = 16.8 feet

The formula of surface area of cone is

S = \pi *r(r+l) \\ S = \pi*6.75(6.75+16.8) \\ S =\pi*6.75*23.55 = 499.2 ft^2

Correct option is C

5 0
3 years ago
Image down below plz help
aleksley [76]

Answer:

12 boys and 18 girls

Step-by-step explanation:

the ratio from boys to girls is 2 to 3

12/2=6

18/3=6

both equal 6 meaning that both are proportional meaning that A is the correct answer  

4 0
3 years ago
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PLEASE HELP! I will give you the brainiest and A LOT of points! (Ch.5.3)
bearhunter [10]

Answer:

Multiplier = 1.75x (7/4).

7/8 cups butter, 4 and 3/8 ounces chocolate, 1 and 3/4 cups sugar, 7/8 teaspoons vanilla, 3 and 1/2 eggs (4 if rounded!), 1 and 5/16 cups flour.

Step-by-step explanation:

The ingredient list is for 16 brownies, but you need to make 28. This means you have to make 1.75x the amount (28/16), so all ingredient quantities need to be multiplied by 7/4 (1.75 in fraction form).

Butter: 1/2 * 7/4 = 7/8 cups

Chocolate: 5/2 * 7/4 = 4 and 3/8 ounces

Sugar: 1 * 7/4 = 1 and 3/4 cups

Vanilla: 1/2 * 7/4 = 7/8 teaspoons

Eggs: 2 * 7/4 = 3 and 1/2 eggs (if rounded, 4, as 3.5 rounds up)

Flour: 3/4 * 7/4 = 1 and 5/16 cups

3 0
2 years ago
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castortr0y [4]

Step-by-step explanation: To solve this absolute value inequality,

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So start by adding 2 to both sides and we have 4|x + 5| ≤ 12.

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Now the the absolute value is isolated, we can split this up.

The first inequality will look exactly like the one

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For the second one, we flip the sign and change the 3 to a negative.

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Solving each inequality from here, we have x ≤ -2 or x ≥ -8.

6 0
2 years ago
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