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3 years ago

PLS HELP ME I SUCK AT MATH

Mathematics

1 answer:

Rainbow [258]3 years ago

5 0

Divide the sides of the larger triangle by the corresponding side of the smaller one:

18/7.2 = 2.5

Figure A is 2.5 times the size of figure B

The scale factor is 2.5

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Solve for x rounded to the nearest hundredth: 10 - 3x = 5

igomit [66]

Answer:

x = 5/3

Step-by-step explanation:

You ALWAYS want your term to be by itself!! So what you need to do is move your constant away from it.

Step 1: Adjust as needed, subtract 10 from both sides of your equation. It should end up like this.

-3x = 5 - 10

Step 2: Solve as needed before continuing equation.

-3x = -5

Step 3: Now you need to get your term by itself. You should divide -3 on both sides of your equation so you should get something like this.

x = -5 / -3

Step 4: You're basically done now! Just simplify! NEGATIVES CROSS EACH OTHER OUT!!!

x = 5/3 OR 1.6

KEY:

Negative and Negative = Positive

Negative and Positive = Negative

Positive and Positive = Positive

4 0

3 years ago

A rectangular rug has a perimeter of 460 meters. The width of the rug is five meters more than 4 times the length. Find the

Paladinen [302]

Answer:

Length = 45 m

Width = 185 m

Step-by-step explanation:

Given:

Perimeter of rectangular rug = 460 m

width of the rug is five meters more than 4 times the length

To find:

Width and length of rug = ?

Solution:

Let the length = $l$ m

As per given statement,

Width = $4l+5$ m

Formula for perimeter of a rectangle = $2\times (Length +Width)$

$460=2\times (l+4l+5)\\\Rightarrow 230 = 5l+5\\\Rightarrow l = \dfrac{225}{5} = 45\ m$

Width = $4l+5$ m

Width = $4\times 45+5 = 185\ m$

So, the answer is:

Length = 45 m

Width = 185 m

6 0

3 years ago

Solve the equation -2x -18= 6

Leno4ka [110]

X= -12 and that’s you answer

6 0

3 years ago

Read 2 more answers

Analysis of the voltage in certain types of circuits involves terms of the form sin(nw^0t-90 degrees) where n is a positive inte

mel-nik [20]

Answer:

D. -cos(nw0t)

Step-by-step explanation:

Subtracting 90° from the argument of the sine function shifts its graph 90° to the right, putting the negative peak on the y-axis. That corresponds to the negative cosine function, choice D.

5 0

3 years ago

Read 2 more answers

1. Cylinder A, B, and C have the same radius but different heights. Put the cylinders in

natulia [17]

The order of volume from least to greatest is C, B and A.

Step-by-step explanation:

Given:

Three Cylinders namely A, B, and C with different heights have the same radius.

To Find:

Arrange the cylinders from least to greatest with respective to their volume.

Formula for volume of cylinder:

V= $\pi r^{2} h$

i.e V∝ h (for constant radius)

where,

r = radius of cylinder

h = height of cylinder

we see that Volume is directly proportional to height.

Consider, $h_{1}, h_{2},h_{3}$ are the heights of cylinder A,B,C respectively, such that;

$h_{1}$ > $h_{2}$ > $h_3}$

And, $V_{1}, V_{2},V_{3}$ are the volume of cylinder A,B,C respectively.

So the order of volume will also be,

$V_{1}$ > $V_{2}$ > $V_3}$

8 0

3 years ago