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3 years ago

Answer the question............

Mathematics

1 answer:

jonny [76]3 years ago

4 0

Hey there!

The answer to your first question is 4.5 inches by 6 inches.

We can solve this by doing 3 x 1.5 and 4 x 1.5, which equals 4.5 and 6.

The answer to the second part is 27 inches²

The formula for area is length times width, so you can do 4.5 x 6

The answer to the third part is Ralph is incorrect because he probably found the area of the original dimensions, and then multiplied it by 1.5. You have to find the actual dimensions first, and then find the area.

Hope this helps. Good luck, have a great day, and let me know if there's more.

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Yesterday, Carmen went on a bike ride. Her average speed was 8

uysha [10]

Answer:

Step-by-step explanation:

Yesterday, her rate was 8mph, her time was x hours.

Today, her rate was 13mph, her time was 13 - x hours.

So the total distance she biked on the two days is

d = 8x + 13(13 - x), or 169 - 5x

7 0

3 years ago

Read 2 more answers

The shortest side of a right triangle measures 7m. The lengths of the other two sides are consecutive integers. Find the lengths

kogti [31]

Use the special triangles ratio.
If it is a 45-45-90 triangle, the sides are $7 \sqrt{2}$ and 7

I think it is a 30-60-90 triangle though. This gets you 14 and $7 \sqrt{3}$

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4 years ago

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Topic: Finite Geometric Sums <br> what is the value of ..

kobusy [5.1K]

$\bf \sum\limits_{i=a_1}^{a_n}\ a1\cdot (r)^{n-1}\iff S_n=a_1\left( \cfrac{1-r^n}{1-r} \right)\qquad 
\begin{cases}
a_1=\textit{first term}\\
r=\textit{common ratio}\\
n=n^{th}\ term
\end{cases}\\\\
-----------------------------\\\\

\begin{array}{llll}
\sum\limits_{i=1}^{3}\ &4\cdot \left( \frac{1}{2} \right)^{i-1}\\
&\uparrow \quad \uparrow \\
&a_1\quad r
\end{array}\iff S_3=4\left( \cfrac{1-\left( \frac{1}{2} \right)^3}{1-\left( \frac{1}{2} \right)} \right)$

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3 years ago

Please help asap question five*

AysviL [449]

Answer:

slope = - 3 y-intercept = 36

Step-by-step explanation:

12x + 4y = 144 , will allow this to be done.

so 4y = - 12x + 144

now dividing both sides of the equation by 4 will give

y = - 3x + 36 , which is now in the required form

slope = - 3 and y-intercept = 36

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3 years ago

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A cafeteria manager needs to know how many apples and bananas to to order. He asked students to choose either an apple or a bana

Usimov [2.4K]

Answer:

Step-by-step explanation:

3/4 of total = 45

therefore, 1/4 took bananas

the ones taking bananas are 3 times less than those who took apples.

so we get 45/3 = 15 people picking bananas

7 0

3 years ago

Answer the question............​

Answer the question............