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3 years ago

Question 3

Mathematics

1 answer:

Luden [163]3 years ago

3 0

<h3>Answer: C) 25%</h3>

Explanation:

There are 7 blue out of 5+7+6+10 = 28 chips total.

7/28 = 1/4 = 25/100 = 25% is the probability of pulling out a blue chip.

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Kelly spends $75.98 on items for a party. She buys thank you cards that cost $3.18 (including tax). She also buys gift bags that

vladimir2022 [97]

B. 7 because if you do $75.98/$10.40=7

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3 years ago

What is the distance between (-3,1) and (-2,-1) in units

Nastasia [14]

Answer:

Here is the graph I made, starting from (-3,1) to (-2,-1) it goes down 2 units and over 1 unit.

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2 years ago

Let f(x) = (5)^x+1 .Evaluate f (-3) without using a calculator

rewona [7]

Answer:

$f\left(-3\right)=\frac{126}{125}$

Step-by-step explanation:

Given

$f\left(x\right)\:=\:\left(5\right)^x+1$

Putting x = -3 to find f(-3)

$f\left(-3\right)\:=\:\left(5\right)^{\left(-3\right)}+1$

$5^{-3}=\frac{1}{125}$ ∵ $\mathrm{Apply\:exponent\:rule}:\quad \:a^{-b}=\frac{1}{a^b}$

$f\left(-3\right)=\frac{1}{125}+1$

$\mathrm{Convert\:element\:to\:fraction}:\quad \:1=\frac{1\cdot \:125}{125}$

$f\left(-3\right)=\frac{1\cdot \:\:125}{125}+\frac{1}{125}$

$\mathrm{Since\:the\:denominators\:are\:equal,\:combine\:the\:fractions}:\quad \frac{a}{c}\pm \frac{b}{c}=\frac{a\pm \:b}{c}$

$f\left(-3\right)=\frac{1\cdot \:\:125+1}{125}$

$f\left(-3\right)=\frac{126}{125}$ ∵ $1\cdot \:125+1=126$

Thus,

$f\left(-3\right)=\frac{126}{125}$

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3 years ago

How do i expand 4(3x 5)?

Sloan [31]

4(3x 5) multiply everything by 4 12x+20

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3 years ago

What is the area of the right triangle shown?

prisoha [69]

The 30:60:90 proportion is 1:sqrt 3: 2

So,

x = 10/2
x = 5

y = 10/sqrt 3

Finding the area:

1/2 * 5 * 10/sqrt 3
25/sqrt 3

Hope this helps!

3 0

3 years ago