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3 years ago

Solve the equation. Show your work, or explain your reasoning. -3x - 5 = 16

Mathematics

1 answer:

Pani-rosa [81]3 years ago

3 0

First add 5 to 16, so -3x=21
then divide by -3, so the answer is
x= -7

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3 years ago

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adell [148]

1) 43

2) 21

step by step:

Both triangles are right triangle which means they're equal to 90.

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3 years ago

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3 years ago

Please complete this completely !!! please help me yall

True [87]

Answer:

(a)4 units, 3 units

(b) Right-angled triangle

Step-by-step explanation:

We are given that

Let location of drinking fountain, A =(-4,2)

Location of the bench, B=(0,2)

Location of the center of the slide ,C=(0,5)

a. Distance formula

$\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Using the formula

$AB=\sqrt{(0-(-4))^2+(2-2)^2}=4units$

$BC=\sqrt{(0-0)^2+(5-2)^2}$

$BC=\sqrt{3^2}=3$ units

Hence, the distance from the drinking fountain to the bench=4 units

The distance from the bench to the center of the slide=3 units

(b)

$CA=\sqrt{(-4-0)^2+(2-5)^2}$

$CA=\sqrt{16+9}=5$ units

$AB^2+BC^2=4^2+3^2=16+9$

$AB^2+BC^2=25$

$CA^2=5^2=25$

$AC^2=AB^2+BC^2$

The triangle ABC satisfied the Pythagoras theorem. Hence, the triangle ABC is a right angled triangle.

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3 years ago

Solve the equation. Show your work, or explain your reasoning. -3x - 5 =￼ 16

Solve the equation. Show your work, or explain your reasoning. -3x - 5 = 16