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3 years ago

Here’s an algebra problem given 20 points and brainliest if correct

Mathematics

2 answers:

VMariaS [17]3 years ago

6 0

Answer:

12/7

Step-by-step explanation:

Hello,

C is the point (0,0)

D is the point (7,12)

$\text{slope} =\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{12-0}{7-0}=\dfrac{12}{7}$

thanks

valina [46]3 years ago

4 0

Answer:

12/7 possibly.

Step-by-step explanation:

Point C is (0,0) and point D is (7,12). Using the formula given, You should have something that looks like this:

$\frac{(12-0)}{(7-0)}$

Then you solve:

$\frac{12}{7}$

That would be your answer I believe.

I hope it helps.

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When the sun has risen 32 degrees above the horizon, Sandy casts a shadow that is 9 feet 2 inches long. How tall is Sandy, to th

Makovka662 [10]

Answer:

The height of Sandy is 68.74 inches.

Step-by-step explanation:

It is given that the sun has risen 32 degrees above the horizon. It means the angle of elevation is 32°.

Let the height of Sandy be x.

Sandy casts a shadow that is 9 feet 2 inches long.

We know that 1 feet = 12 inches

Using this conversion, we get

Shadow = 9 feet 2 inches = 9(12)+2 = 110 inches

In a right angled triangle,

$\tan\theta =\frac{perpendicular}{base}$

In triangle ABC,

$\tan(\angle C)=\frac{AB}{BC}$

$\tan(32^{\circ})=\frac{x}{110}$

Multiply both sides by 110.

$110\tan(32^{\circ})=x$

$68.73562871=x$

$x\approx 68.74$

Therefore the height of Sandy is 68.74 inches.

8 0

3 years ago

a restaurant has 2006 forks ,1745 knives,and 1898 spoons.the owner wants to have the same number of each utensil .she can buy mo

svetlana [45]

She could donate extra forks utensils and also donate spoon utensils and she will have the exact number of utensils as the knives

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3 years ago

Which of the following cannot be solved using the quadratic formula?

VLD [36.1K]

Answer:

Step-by-step explanation:

Quadratic formula is used only to solve the quadratic equations .

Means the equation of the form

$ax^{2} +bx+c=0$

In this the x^2 part is must because that only makes the equation a quadratic.

Looking at the four options given to you , only the option C has the missing x^2 term, which makes it a linear equation and hence the quadratic formula cannot be applied there .

So the right option for your question with the quadratic formula is

option

7 0

3 years ago

An ice cream shop sells cones at the volume of 94.2 cubic meters they want to double the volume of the cones without changing th

marin [14]

The volume of a cone is $V=\pi r^2\frac{h}3$ where r = radius and h = height. If the cone has a volume of 94.2 cm³ (I assume you didn't mean m³ because that would be ridiculously huge) and a height of 10 cm, we can plug these values into the formula to find the radius. Don't do any rounding.

$94.2 = \pi r^2\frac{10}3 \\ 282.6 = \pi r^2 *10 \\ 28.26 = \pi r^2 \\ 8.99543738355 = r^2 \\ 2.99923946752=r$

Now we know that's going to be the radius of our <em>new </em>cone as well since we're keeping the diameter the same. The volume is going to be double 94.2 which is 188.4. Let's solve for the height.

$188.4 = \pi (2.99923946752)^2\frac{h}3 \\ 188.4 = \pi(8.99543738355)\frac{h}3 \\ 188.4 = 28.26\frac{h}3 \\ 565.2 = 28.26h \\\\ \boxed{h = 20, r\approx 3}$

5 0

3 years ago

My brain is a rasin so yeah, help a g a i n

Ierofanga [76]

Answer:

Combined time: 55.316 seconds

The difference in times: 0.856 seconds

Tips:

It is addition and subtraction. A basic calculator should help with any other questions such as this one!

8 0

3 years ago

Read 2 more answers