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3 years ago

4х +7 у+ 1 Зу — 11 12x – 1

Mathematics

1 answer:

VladimirAG [237]3 years ago

8 0

I need to type and make this 20 characters long but here you go

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Three students share 28 pencils equally.how many pencils does each person get?

Nonamiya [84]

Answer:

Step-by-step explanation:

28 divided by 7=4

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3 years ago

Solve the question. show your work. check your answer. 3x -7 = 5x + 19

Umnica [9.8K]

3x -7 = 5x + 19
-7 = 2x + 19
-26 = 2x
x= -13

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3 years ago

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What is the diameter of a circle with area of 113.04 square cm. use 3.14? pls fast

galina1969 [7]

Answer:

diameter of a circle = 12cm

Step-by-step explanation:

Area of a circle = πr²

113.04 cm² = πr²

First, search for radius (r) :-

r = √(113.04/π)

r = 6 cm

As diameter is equals to 2×radius

The diameter of a circle = 2 × 6cm

Final answer = 12 cm

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2 years ago

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Find the reference angle given: t= -5π/3.

Elina [12.6K]

Answer:

The reference angle is $\frac{\pi}{3}$

Step-by-step explanation:

The given angle is $t=-\frac{5\pi}{3}$

The reference angle is the acute angle, that a given angle makes with the x-axis.

First let us make a sketch of the given angle. See diagram in attachment.

Let $\theta$ be the reference angle of $t=-\frac{5\pi}{3}$

Then, from the diagram, we need to subtract $\theta$ from $-\frac{5\pi}{3}$ to get to $-2\pi$ .

We can therefore write the following equation and solve for $\theta$ .

$\Rightarrow -\frac{5\pi}{3}-\theta=-2\pi$

We group like terms to get,

$\Rightarrow -\theta=-2\pi +\frac{5\pi}{3}$

We collect LCM to get,

$\Rightarrow -\theta=\frac{-6\pi+5\pi}{3}$

We simplify to get,

$\Rightarrow -\theta=-\frac{\pi}{3}$

We divide through by $-1$

$\theta=\frac{\pi}{3}$ to get,

The correct answer is D.

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3 years ago

Quick please help. what is the missing value of y-4=-2(x+3)y−4=−2(x+3)

Reil [10]

Answer:

fiduciary bin tashfeen Ivey on ppl cindy no

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3 years ago