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2 years ago

Hi pls helpppppp. thank uuu :)

Mathematics

1 answer:

tamaranim1 [39]2 years ago

5 0

Answer:

-7/4

Step-by-step explanation:

Slope is (y₂ - y₁) / (x₂ - x₁)

Using this, plug in the values they give.

(6 - (-1)) / (-4 - 0)

Simplify.

7 / (-4)

-7 / 4

The slope is - 7/4, or -1 3/4 ( negative 1 and three fourths)

I hope this helps! Feel free to ask any questions!

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Y=ax with a>1<br><br> im very confused on what to do

Kazeer [188]

Answer:

Step-by-step explanation:

‘a’ in this question is the slope of the line. Slope is (y2-y1)/(x2-x1) for any two points. We can see the line intersects the point (0,0) and (-10/9) so the slope is -10/9 which is less than -1 so

a<-1

4 0

2 years ago

Write the equation of a circle with a center at (-1,2) and a radius of 7

Sever21 [200]

Answer:

$(x+1)^2+(y-2)^2=49$

Step-by-step explanation:

The standard form for the equation of a circle is $(x-h)^2+(y-k)^2=r^2$ where r is the radius, and the center is (h, k).

(h, k) = (-1, 2), r = 7

$(x-(-1))^2+(y-2)^2=7^2\\\\(x+1)^2+(y-2)^2=49$

5 0

2 years ago

The number of music CDs that Carl has in his collection is four less than triple the number of music CDs that Toni has in her co

grigory [225]

Ok, simple.
Carl has 4 less than triple the amount Toni has.
Toni has x amount of CDs.
Carl has 3x - 4 amount of CDs.

Hope this helps!

6 0

2 years ago

A cone has a volume of 24 cubic inches. What is the volume of a cylinder that the cone fits exactly inside of?

Soloha48 [4]

Answer:

72 cubic inches

Step-by-step explanation:

Volume of cone = $\frac{1}{3}\pi r^{2} h$ --1

Volume of cylinder = $\pi r^{2} h$ --2

We are given that a cylinder should fit exactly inside the cone

On comparing 1 and 2 we can see:

$\text{Volume of cone}= \frac{1}{3} \text{Volume of cylinder}$

Since we are given the volume of cone is 24 cubic inches .

So, $24= \frac{1}{3} \text{Volume of cylinder}$

$24 \times 3= \text{Volume of cylinder}$

$72= \text{Volume of cylinder}$

Hence the volume of cylinder is 72 cubic inches

Option D is correct.

3 0

2 years ago

Read 2 more answers

We gave a national verbal proficiency test that has a mean score of 500 with a standard deviation of 75. What raw score would co

charle [14.2K]

Answer:

519

Step-by-step explanation:

Let's assume that the scores for the national verbal proficiency test follow a normal distribution.

Mean score (μ) = 500

Standard deviation (σ) = 75

According to a Z-score table, the score for the 60th percentile is roughly z = 0.253

For any score "x", the z-score is given by:

$Z=\frac{X-\mu}{\sigma}$

For z = 2.53:

$0.253=\frac{X-500}{75}\\X=519$

The raw score to the 60th percentile is 519.

4 0

3 years ago