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maw [93]
3 years ago
9

Simplify the expression -3 (b-7)

Mathematics
1 answer:
Nataliya [291]3 years ago
5 0
Simply distribute the -3 across the b and -7.

-3(b - 7) = (-3 * b) + (-3 * -7) = -3b + 21

Hope this was helpful, if it wasn't just drop me a DM explaining what didn't make sense.
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Can you guys help me with this question? PLEASEEEEE
Wittaler [7]

Answer:

90 dancers

Step-by-step explanation:

150/5=30

30x3=90

4 0
3 years ago
Read 2 more answers
Write a correct equation for the function whose graph is shown.
Rom4ik [11]

Answer:

\displaystyle y=-2sin(6t)

Step-by-step explanation:

<u>Sinusoid</u>

The shape of a sinusoid is well-know because it describes a curve with a smooth and periodic oscillation. The sine and cosine are the two trigonometric functions in which the graph matches the description of a sinusoid. The sine can be identified because its value is zero at time zero.

The graph shown in the figure corresponds to a sine. The other characteristics of the sine function are

* It completes a cycle in2\pi radians

* It has a maximum of 1 and a minimum of -1

* It's increasing for a quarter of the cycle, decreasing for half of the cycle, and increasing for the remaining quarter of the cycle

* The equation is

y=Asin(wt)

The function starts decreasing for the first quarter, which only is possible if the amplitude A is negative. We can also see the maximum and minimum values are 2 and -2 respectively. This means the amplitude is A=-2

We can also see the function completes 3 cycles in t=\pi radians or 6 cycles in 2\pi radians. Or, equivalently

wt=12\pi

w(2\pi)=12\pi

\displaystyle w=\frac{12}{2}=6\ rad/sec

Thus, the function can be expressed as

\boxed{\displaystyle y=-2sin(6t)}

6 0
3 years ago
1. Choose the correct answer. *
Alex777 [14]
The answer is just C your welcome
5 0
2 years ago
Ill give brainly and 10 points
max2010maxim [7]

The correct option is If the bag is 7/8 full and 1/3 drops on the floor, the amount that drops on the floor is  7/8 x 1/3.

<h3>What is the correct option?</h3>

A fraction is a non-integer that is made up of a numerator and a denominator. The numerator is the number above and the denominator is the number below.

Multiplication is the mathematical operation that is use to determine the product of two or more numbers. The sign that is used to represent multiplication is x.

If the area of the park is 7/8 and the width is 1/3, the length is: area / width : 7/8 ÷ 1/3 = 7/8 x 3

If the bag is 7/8 full and 1/3 drops on the floor, the amount that drops on the floor is : 7/8 x 1/3.

If the rope is 7/8 long and he cuts off 1/3, the remaining rope is:  7/8 ÷ 2/3

The number of bowls that Julia can fill is:  7/8 ÷ 1/3 = 7/8 x 3

To learn more about multiplication of fractions, please check: brainly.com/question/1114498

#SPJ1

3 0
1 year ago
What would the value of X be on this one?
Tanzania [10]

Answer:

i think it's 51 because if you add 106 and 23 together it's 129 then 180-129= 51

Step-by-step explanation:

6 0
3 years ago
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