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2 years ago

PLEASE HELP ME ITS FOR MY TEST SO PLEASE NO WRONG ANSWERS

Mathematics

1 answer:

AveGali [126]2 years ago

3 0

Let's take a look at the exponent rule:

${x}^{a} \times {x}^{b} = {x}^{a + b}$

Her mistake was she multiplied the exponents instead of adding it up.

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wlad13 [49]

The correct answer is b

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3 years ago

Emily's parents put $1,500 in her bank account for college tuition. At an interest rate of 8.25% compounded semi-annually, what

s2008m [1.1K]

Answer:

Step-by-step explanation:

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2 years ago

Question 2

Rainbow [258]

Answer D is correct

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2 years ago

How to do 3/2b+1/5b=17 ?

guajiro [1.7K]

Answer:

b = 10

Explanation:

Lets start by combining like terms (b):

3/2b + 1/5b

to combine these fractions you must get them to both have the same denominator:

3/2 · 5/5 = 15/10 multiply top and bottom by other fractions denominator

1/5 · 2/2 = 2/10 multiply top and bottom by other fractions denominator

15/10 + 2/10 = 17/10

17/10b = 17

Now we want to get the b to be by itself, so lets first multiply both sides by 10:

17b = 170

Now lets divide both sides by 17:

b = 10

Hope this helped!

7 0

2 years ago

Read 2 more answers

Figure not drawn to scale.

DerKrebs [107]

Though you do not provide a diagram, I am going to give this a try by assuming that O is the center of the circle, OA is a radius, and angle AOB is a central angle that measures 88 degrees.

We want to find out the area of sector AOB. First, we need to find the area of the entire circle. The area of a circle is given by $A= \pi r^{2}$ and since the radius of this circle is equal to 1, the area is $\pi ( 1^{2} )= \pi$

Next we need to know what fraction of the circle sector AOB represents. The distance around the circle is 360 degrees but the central angle that intercepts arc AB is 88 degrees. That meas that the fraction of the circle the sector represents is given by $\frac{88}{360}= \frac{11}{45}$

We multiply this by the area to obtain $\frac{11}{45} \pi$ which is the area of the sector.

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2 years ago