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2 years ago

5) 4 mm 2 mm 5 mm 3 mm Perimeter: Area:

Mathematics

1 answer:

eduard2 years ago

6 0

Answer:

perimeter - 4+2+3+2+5= 16mm

Area -5×4=20mm²

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<img src="https://tex.z-dn.net/?f=%20-%20%20%5Cfrac%7B9%7D%7B5%7D%20%20%5Cdiv%204" id="TexFormula1" title=" - \frac{9}{5} \div

raketka [301]

Your answer would be negative 9/20

3 0

3 years ago

If f(x)=2x+3 and g(x)=x^2+1 find f(g(3)) Help!! A.23 B.47 C.82 D.90

True [87]

Answer

A. 23

step-by-step explanation

$g(x) = {x}^{2} + 1$

We put x=3 into the function g

$\implies g(3)= {3}^{2} + 1$

$\implies \: g(3)=10$

Also,

$f(x)=2x +3$

we substitute the value of g(3) into f

$\implies f(g(3))=f(10)$

$\implies f(g(3))=f(10) = 2(10) + 3$

$\implies f(g(3))=23$

8 0

3 years ago

Which expression is equivalent to (x^4/3 x^2/3)^1/3?

KATRIN_1 [288]

Answer: $x^{\frac{2}{3} }$

Step-by-step explanation:

We have several properties of exponents in use here. The two that are used are:

$(x^{a})(x^{b}) = x^{a + b}$ (Exponents with the same base that are being multiplied together can have the exponents added)

$(x^{a})^{b} = x^{(a)(b)}$ (A base raised to a power, and then raised to another power means that you can multiply the exponents to get the same result as doing inside operations and then outside operations)

Let's apply it!

First, let's simplify what's inside the parenthesis.

$x^{\frac{4}{3} } x^{\frac{2}{3} }$ (Remember, they have the same base of "x", so we can add the exponents)

$x^{\frac{4}{3} + \frac{2}{3} }$ = $x^{\frac{6}{3} }$ = $x^{2}$

Now we have $(x^{2})^{\frac{1}{3} }$ . Let's use the second rule.

$(x^{2})^{\frac{1}{3} }$ = $x^{\frac{2}{3} }$

Hope this helps! :^)

7 0

3 years ago

If a questiong does not tell you to answer in terms of pi do you round

Wittaler [7]

Yes, most likely. You may also find it helpful to plug the pi symbol along with your answer into your (scientific) calculator as it will give you a more accurate response.

8 0

2 years ago

Samples of rejuvenated mitochondria are mutated (defective) in 3% of cases. Suppose 15 samples are studied, and they can be cons

stiks02 [169]

Answer:

C) At most one sample is mutated

Step-by-step explanation:

If there are 15 samples, it means that 15 is the total (100%) of samples. Then, if we know that there is a chance that 3% are mutated, then we calculate the 3% of 15:

$Mutated= \frac{3. 15}{100} = 0.45$

This means that at most one sample is mutated, as this result is not zero (we discard answer A), and 0.45 is not more than half of the samples.

5 0

2 years ago