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3 years ago

Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!

Mathematics

1 answer:

Ksju [112]3 years ago

7 0

Answer:

BF = 18

Step-by-step explanation:

In triangle BCD, H is the Centroid.

Centroid of a triangle divides the median in the ratio 2 : 1.

Therefore, BH : HF = 2 : 1

Let BH = 2x & HF = x

Since, HF = 6.... (given)

So, x = 6

2x = 2*6 = 12

BH = 12

Now,

BF = BH + HF = 12 + 6

BF = 18

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Justin bought some yarn from his Favorite craft store. He can make one score for 3/5 of a ball of yarn. If he purchases 15 balls

Svet_ta [14]

Justin can make 25 scraves with 15 balls of yarn

<h3>Solution:</h3>

Given that Justin can make one scarve for 3/5 of a ball of yarn

He purchases 15 balls of yarn

To find: number of scarves Justin can make

Number of scarves Justin can make with 15 balls of yarn can be found out by dividing 15 balls of yarn by 3/5 of a ball of yarn

$\text {number of scarves }=\frac{\text { total yarn he has }}{\text { yarn needed for } 1 \text { scarve }}$

$\text {number of scarves }=\frac{15}{3 / 5}$

$\text {number of scarves }=\frac{15}{3} \times 5=25$

Thus he can make 25 scraves

5 0

3 years ago

120 is what percent of 360 explain plz

Dvinal [7]

120 = x percent of 360

120 = x * 360

120/360 = x

x = .33 repeating

x = 33.33% (repeating)

8 0

4 years ago

Read 2 more answers

Which is the largest? 76%,4/5, .77

lord [1]

4/5 is the same as 80% or .80, so it's larger than 76% and .77

5 0

4 years ago

Can someone explain to me how to find the vertex form of this equation? y= -x^2 + 12x-4

AVprozaik [17]

ANSWER:

The vertex of given equation $y=-x^{2}+12 x-4$ is (6, 32).

SOLUTION:

Given, quadratic equation is $y=-x^{2}+12 x-4$

Above equation is a parabola and we need to find the vertex of that parabola. We know that, general form of the parabola is $y=a(x-h)^{2}+k$

Where, (h, k) is the vertex.

So, let us convert the given equation in parabolic equation.

$\begin{array}{l}{y=-x^{2}+12 x-4} \\ {y=-\left(x^{2}-12 x+4\right)} \\ {y=-\left(x^{2}-(2)(x)(6)+6^{2}-6^{2}+4\right)} \\ {\left.y=-\left((x-6)^{2}-36+4\right)\right)} \\ {y=-(x-6)^{2}+32}\end{array}$

Now, by comparing above equation with general form,

h = 6, k = 32 and a = -1.

Hence, the vertex of given equation is (6, 32).

5 0

3 years ago

Is the binomial x-9 a factor of 4x^3-28^2-36x-27

Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

If (x - 9) is a factor then x = 9 is a root and f(9) = 0

f(x) = 4x³ - 28x² - 36x - 27, hence

f(9) = 4(9)³ - 28(9)² - 36(9) - 27

= 2916 - 2268 - 324 - 27 = 297

Since f(9) ≠ 0 then (x - 9) is not a factor of f(x)

5 0

3 years ago