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Alexus [3.1K]
3 years ago
10

Find the value of x and y

Mathematics
1 answer:
Romashka [77]3 years ago
6 0

Step-by-step explanation:

\triangle ABC \sim\triangle DEF..(Given)  \\ \therefore \frac{AB}{DE} =\frac{BC}{EF}=\frac{AC}{DF}..(CSST)\\\\\therefore \frac{6}{4} =\frac{7}{x}=\frac{8}{y}\\\\ \therefore \frac{6}{4} =\frac{7}{x} \\ \therefore \: x =  \frac{7 \times 4}{6}  \\  \\\therefore \: x =  \frac{28}{6} =  \frac{14}{3}    \\  \\ \huge \red{ \boxed{ \therefore \: x =  \frac{14}{3} }} \\   \\  \because \: \frac{6}{4} =\frac{8}{y} \\  \\ \therefore \:y =  \frac{4 \times 8}{6}  \\  \\ \therefore \:y =  \frac{32}{6}  \\  \\ \huge \purple{ \boxed{ \therefore \:y =  \frac{16}{3}  }}\\  \\

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Which equivalent four-term polynomial can be created using the X method? x2 8x 8x 48 x2 – 12x – 4x 48 x2 12x 4x 48 x2 – 8x – 8x
Lerok [7]

Polynomial are expressions. The equivalent four-term polynomial of x²+16x+48 is x²+12x+4x+48.

<h3>What are polynomial?</h3>

Polynomial is an expression that consists of indeterminates(variable) and coefficient, it involves mathematical operations such as addition, subtraction, multiplication, etc, and non-negative integer exponentials.

In order to find the equivalent four-term polynomial of the given quadratic equation, we will break constant b(16) into two parts such that the sum of the parts is 16, while their product is equal to the product of the constant a(1) and c(48).

Therefore, the solution of the polynomial is,

x^2+ 16x+48\\\\ = x^2 + 12x+4x+48

Hence, the equivalent four-term polynomial of x²+16x+48 is x²+12x+4x+48.

Learn more about Polynomial:

brainly.com/question/17822016

7 0
2 years ago
What are the values of x and y. In the given figure?
anyanavicka [17]

Answer:

y = 52 degrees

x = 7 degrees

Step-by-step explanation:

Hello! So, we can first easily find out the measurement of y because of the Base Angles Theorem.

[ The base angles theorem converse states if two angles in a triangle are congruent, then the sides opposite those angles are also congruent. The Isosceles Triangle Theorem states that the perpendicular bisector of the base of an isosceles triangle is also the angle bisector of the vertex angle. ]

- www.ck12.org

So basically, in an iscoceles triangle, the base angles are equal so therefore, y = 52 degrees

Now we have to solve for x. We know that the sum of the angles in a triangle are 180 so we have to make an equation:

52 + y = 14x + 6 {<em>We know that y is 52 degrees so we should plug that in</em>}

52 + 52 = 14x + 6 --> Now we should simplify:

104 = 14x + 6

98 = 14x

x = 7 degrees

6 0
3 years ago
Read 2 more answers
Please help I don't understand.
Kay [80]
I don’t really know sorry
6 0
3 years ago
Read 2 more answers
Shear strength measurements for spot welds have been found to have standard deviation 1 0 pounds per square inch (psi). If 100 t
Temka [501]

Answer:

P(\mu -1< \bar X

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Let X the random variable that represent the Shear strength of a population, and for this case we know the distribution for X is given by:

X \sim N(\mu,10)  

Where \mu and \sigma=10

And let \bar X represent the sample mean, the distribution for the sample mean is given by:

\bar X \sim N(\mu,\frac{\sigma}{\sqrt{n}})

On this case  \bar X \sim N(\mu,\frac{10}{\sqrt{100}})

We are interested on this probability

P(\mu -1

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}

If we apply this formula to our probability we got this:

P(\mu -1

=P(\frac{\mu -1-\mu}{\frac{10}{\sqrt{100}}}

And we can find this probability on this way:

P(-1

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-1

5 0
3 years ago
PLEASE HELP!!!<br> Find the midpoint of the line segment joining points A and B.<br> A(6,-5): B(4,1)
prisoha [69]

Answer:

(5,−2)

it's the midpoint

4 0
3 years ago
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