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yKpoI14uk [10]
4 years ago
10

Please help me..............................

Mathematics
1 answer:
myrzilka [38]4 years ago
6 0

Answer:

y = 12

Step-by-step explanation:

∵ m∠ABC = 40

∵ BD ray is the bisector of ∠ABC

∴ m∠ABD = m∠CBD = 20

In 2 Δ BAD and BCD:

∵ m∠BAD = m∠BCD = 90°

∵ m∠ABD = m∠CBD = 20°

∵ BD is a common side in the two triangles

∴ ΔABD congruent to ΔCBD⇒(AAS)

∴ AD = CD

∴ 3y + 6 = 5y - 18

∴ 5y - 3y = 6 + 18

∴ 2y = 24

∴ y = 24/2 = 12

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In a museum there is a sculpture in the shape of a cylinder the cylinder has a diameter of 12 feet and a height of h feet which
olga2289 [7]

Answer:

V=36 \pi h\ ft^{3}

Step-by-step explanation:

we know that

The volume of a cylinder (sculpture) is equal to

V=\pi r^{2}H

In this problem we have

r=12/2=6\ ft ----> the radius is half the diameter

H=h\ ft

substitute the values

V=\pi (6^{2})(h)=36 \pi h\ ft^{3}

7 0
3 years ago
Read 2 more answers
(write in algebraic expression) Ice cream shop is open within the month of june,july and august
ankoles [38]

The algebraic expression of the situation above is 4x - 100 = 400

<h3>How to form an algebraic expression?</h3>

Let

the amount of ice cream they serve in July = x + 100

the amount of ice cream they serve in June = x

They served twice as many customers in august as they did in June.

Therefore,

the amount of ice cream they serve in August = 2(x)

the amount of ice cream they serve in August = 2x

Therefore,

2x + x  + x + 100 = 400

4x - 100 = 400

4x = 500

x = 500 / 4  

x = 125  

learn more on algebraic expression here:brainly.com/question/13223163

#SPJ1

3 0
2 years ago
Which side of coordinates does NOT represent a function?
Doss [256]

Answer:The last one

Explanation:

A function has to return a unique value when given an argument. In the last set

} ( – 2 , 1 ) , ( 3 , – 4 ) , ( – 2 , – 6 )}

, the argument -2 is supposed to return both 1 and -6 : this is not possible for a function.

Step-by-step explanation:

8 0
3 years ago
A business was valued at £80000 at the start of 2013. In 5 years the value of this business raised to £95000. this is equivalent
Yuri [45]

the yearly increase of x% assumes is compounding yearly, so let's use that.

~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\dotfill &\£95000\\ P=\textit{original amount deposited}\dotfill &\£80000\\ r=rate\to r\%\to \frac{r}{100}\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{yearly, thus once} \end{array}\dotfill &1\\ t=years\dotfill &5 \end{cases}

95000=80000\left(1+\frac{~~ \frac{r}{100}~~}{1}\right)^{1\cdot 5}\implies \cfrac{95000}{80000}=\left( 1+\cfrac{r}{100} \right)^5 \\\\\\ \cfrac{19}{16}=\left( 1+\cfrac{r}{100} \right)^5\implies \sqrt[5]{\cfrac{19}{16}}=1+\cfrac{r}{100}\implies \sqrt[5]{\cfrac{19}{16}}=\cfrac{100+r}{100} \\\\\\ 100\sqrt[5]{\cfrac{19}{16}}=100+r\implies 100\sqrt[5]{\cfrac{19}{16}}-100=r\implies 3.5\approx r

4 0
2 years ago
PLEASE ANSWER! (BRAINLIEST)
gavmur [86]

First, find the distance AB by the formula:

AB=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}.

If A(0,-7) and B(8,8), then

AB=\sqrt{(8-0)^2+(8-(-7))^2}=\sqrt{8^2+15^2}=\sqrt{64+225}=\sqrt{289}=17.

Dilating polygon ABCD by a scale factor of 2 with the center of dilation at the origin to create polygon A′B′C′D′, you increase the distance AB twice, A'B'=2AB. Thus, A'B'=2·17=34 units.

Answer: AB=17 units, A'B'=34 units.


8 0
4 years ago
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