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gizmo_the_mogwai [7]
3 years ago
14

I need help please. I do not know the answer

Mathematics
1 answer:
ss7ja [257]3 years ago
6 0

Answer: -2/7 or C

Step-by-step explanation:

Because you have to think rise over run. You move  however many you need to (in this case 2) and then over (in this case 7) and then if the line is positive or negative, the answer will be negative or posotive

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Area of a rectangle with sides measuring 34.5 and 45.3 feet
MariettaO [177]

Answer:

1,562.85

Step-by-step explanation:

34.5 times 45.3

6 0
3 years ago
Read 2 more answers
A 5-pound box of raspberries costs $27.20. What is the price per ounce?<br> $
ASHA 777 [7]

Answer:

$0.34 per ounce

Step-by-step explanation:

A 5 pound box can be changed to ounces. There are 16 ounces in a pound. So we have 5 groups of 16.

5 × 16 is 80 ounces.

There are 80 ounces in 5lbs.

To get a price per ounces, divide.

dollars/ounces

= 27.20/80

= 0.34 dollars/oz.

This is 34cents per ounce.

6 0
2 years ago
Can someone answer this and tell me how to solve please?
Julli [10]
It’s a ‘reflection across y=x’ or option 3.
3 0
3 years ago
NO LINKS AND NO ANSWERING WHAT YOU DON'T KNOW!!! THIS IS NOT A TEST OR ASSESSMENT!!!
Reptile [31]

Answer:

Part 1)

1) Sylvia' process was incorrect. In her last step, when she multiplied 0.88 by 10, she also need to divide exponent by 10.

2) Dylan is perfectly correct.

3) Ethan's process was also incorrect. Instead of subtracting the exponents, he added them.

Part 2)

Only Skyler's approach was incorrect. When Skyler acquired (3⁶)ˣ = 9, he made the error of setting the exponent on the left to the value on the right.

Step-by-step explanation:

Part 1)

We want to simplify the expression:

\displaystyle \frac{3.61\times 10^{-11}}{4.1\times 10^7}

We can divide. Recall that <em>xᵃ </em>/ <em>x</em>ᵇ = <em>x</em>ᵃ ⁻ ᵇ. Hence:

\displaystyle =0.88\times 10^{-11-7}=0.88\times 10^{-18}

In scientific notation, the coefficient is always between 1 or 10.

So, we can multiply 0.88 by 10. To keep the equality, we need to divide 10⁻¹⁸ by 10. Hence:

\displaystyle =0.88(10)\times \frac{10^{-18}}{10}

(You can see that the 10s can cancel out, giving us our original expression.)

Simplify. Thus:

\displaystyle \frac{3.61\times 10^{-11}}{4.1\times 10^7} = 8.8\times 10^{-19}

Therefore, as we can see:

1) Sylvia' process was incorrect. In her last step, when she multiplied 0.88 by 10, she also need to divide exponent by 10.

2) Dylan is perfectly correct.

3) Ethan's process was also incorrect. Instead of subtracting the exponents, he added them.

Part 2)

Reviewing their work, we can see that only Skyler's approach was incorrect.

729 is indeed 3⁶. However, when Skyler acquired (3⁶)ˣ = 9, he made the error of setting the exponent on the left to the value on the right.

Both Robert and Kevin are correct, having set each exponent equal to each other after their bases are equivalent and solving for <em>x</em>.

7 0
3 years ago
In what way does knowing the measures of the three sides of a triangle tell you more than just knowing the measures of the three
ankoles [38]

Answer:

Step-by-step explanation:

Knowing the measure of the <u>three angles</u><u> </u>can help us know if the triangle is acute, obtuse, right, isosceles, or equilateral  and also compared with another we can tell if it is similar to another Δ.

Knowing the measures or the <u>three sides </u>of a triangle we can know if the triangle is right, isosceles, or equilateral  and also compared with another we can tell if it is congruent or similar with another Δ.

We can see that knowing the sides will tell us more about the <u>congruency of triangles </u>whereas knowing just the angles can tell us that triangles are similar yet we will not know if the triangles are also congruent.

5 0
3 years ago
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