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3 years ago

Please help me hurry!!

Mathematics

1 answer:

AlladinOne [14]3 years ago

5 0

Answer:

Step-by-step explanation:

is this a test?

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What is the answer to this?

coldgirl [10]

Answer:

C.) $A=12x-20$

Step-by-step explanation:

The area formula:

$A=l*w$

Insert the values:

$A=4*(3x-5)$

Use the distributive property:

$A=4(3x)+4(-5)\\\\A=12x-20$

:Done

7 0

3 years ago

5Y+8 -ly-8-8y-1" Your answer

gulaghasi [49]

Answer:

$-4y-1$

Step-by-step explanation:

$(5y+-y+-8y)+(8+-8+-1)$

$-4y-1$

7 0

3 years ago

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regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during th

Galina-37 [17]

An octagon has 8 sides, a rotation of 45° (360°/8) will map the octagon onto its preimage. Answer is 8.

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3 years ago

PQR is a right angled triangle calculate the size of angle marked x

romanna [79]

Answer:

$\displaystyle x \approx 37.4^\circ$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Equality Properties

Multiplication Property of Equality
Division Property of Equality
Addition Property of Equality
Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA
[Right Triangles Only] cosθ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Define

Angle θ = x

Adjacent Leg = 5.8

Hypotenuse = 7.3

Step 2: Solve for x

Substitute in variables [Cosine]: $\displaystyle cosx^\circ = \frac{5.8}{7.3}$
[Fraction] Divide: $\displaystyle cosx^\circ = 0.794521$
[Equality Property] Trig inverse: $\displaystyle x^\circ = cos^{-1}(0.794521)$
Evaluate trig inverse: $\displaystyle x = 37.39^\circ$
Round: $\displaystyle x \approx 37.4^\circ$

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2 years ago

A go carts too speed is 607200 feet per hour. what is the speed in mph?

densk [106]

The answer is 115 miles per hour

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3 years ago

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