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andre [41]
3 years ago
15

Please help ASAP. PRE ALGEBRA

Mathematics
2 answers:
Andrews [41]3 years ago
5 0

Answer:

x=120°

x=120°

.5x =60

.5x =60

solniwko [45]3 years ago
5 0

Step-by-step explanation:

x= 120 °

1/2x=60°

least to greatest

60° 60° 120° 120°

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Tyra spends a total of $33 for three T-shirts. Each T-shirt costs the same amount of money.
Roman55 [17]

Answer:

number 4/the last option

Step-by-step explanation:

this is because each individual Tshirt = X. and we already know that we have 33$ to spend

3 0
3 years ago
What is the value of the correlation coefficient r of the data set?
Mashutka [201]

Answer:

idk

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
Solve the inequality. use interval notion to state the solution (x+3)^2>2(x^2+7)
OleMash [197]

Answer:

we conclude that:

x^2+6x+9>2x^2+14\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:1

Hence, (1, 5) is the solution in interval notation.

Please also check the attached graph.

Step-by-step explanation:

Given the inequality expression

\left(x+3\right)^2>\:2\left(x^2+7\right)

as

(x + 3)² = x² + 6x + 9

2(x² + 7) = 2x² + 14

so

\:x^2+6x+9\:>\:2x^2+14

rewriting in the standard form

-x^2+6x-5>0

Factor -x² + 6x - 5:  - (x - 1) (x - 5)

-\left(x-1\right)\left(x-5\right)>0

Multiply both sides by -1 (reverse the inequality)

\left(-\left(x-1\right)\left(x-5\right)\right)\left(-1\right)

Simplify

\left(x-1\right)\left(x-5\right)

so

1

Therefore, we conclude that:

x^2+6x+9>2x^2+14\quad :\quad \begin{bmatrix}\mathrm{Solution:}\:&\:1

Hence, (1, 5) is the solution in interval notation.

Please also check the attached graph.

4 0
3 years ago
7) A cylindrical pipe has a circumference of 16 cm. Calculate the diameter of the pipe
Rufina [12.5K]

Answer:

pi×diamiter = circumference

pi÷circumference = diamiter

3.14159265358979 (pi) ÷ 16

Step-by-step explanation:

6 0
3 years ago
Name two coordinates that are on the line: <img src="https://tex.z-dn.net/?f=y%20%3D%2012" id="TexFormula1" title="y = 12" alt="
Marysya12 [62]

(1, 12)

(420, 12)

Any coordinate with a y value of 12 lies on the line y = 12.

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(-5, 69)

(-5, 13)

Any coordinate with an x value of -5 lies on the line x = -5.

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Since the equation must be perpendicular to the line x = 4, which is a vertical line, it must also be written in the form x = a.

Since the x coordinate is 3, the equation of the line is simply x = 3.

3 0
3 years ago
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