9. The diagram shows triangle ABC.
Diagram NOT
accurately drawn
15cm
9cm
D
5 cm
AB = 9 cm
BC = 15 cm
D is the point on AC such that AD = 5 cm.
Angle BAC = 90°
Calculate the size of angle x.
Give your answer to the nearest degree.

Answer:

For this case we can see the table as a set of ordered pairs.

We then have the following ordered pairs:

(-6, -7)

(-1,1)

(0, 9)

(3, -2)

Then, the domain of the function is represented by all the values of x.

We have then:

{x | x = –6, –1, 0, 3}

Answer:

{x | x = –6, –1, 0, 3}

Step-by-step explanation:

Answer:

Jackson downloaded 6 songs for $7.80. What was the cost of each song?

The variable, c, represents

✔ the cost of one song

The cost of each song is part of a total, so the operation is

✔ multiplication

The correct equation to solve this problem is

✔ 6c = 7.80

Step-by-step explanation:

Answer: C) 400

Step-by-step explanation:

Answer:

[tex](\frac{3}{4})^3 * (\frac{2}{3})^2 = \frac{3}{16}[/tex]

Step-by-step explanation:

Given

[tex](\frac{3}{4})^3 * (\frac{2}{3})^2[/tex]

Required

Solve:

[tex](\frac{3}{4})^3 * (\frac{2}{3})^2[/tex]

Apply law of indices

[tex](\frac{3}{4})^3 * (\frac{2}{3})^2 = \frac{3^3}{4^3} * \frac{2^2}{3^2}[/tex]

Express 4 as 2^2

[tex](\frac{3}{4})^3 * (\frac{2}{3})^2 = \frac{3^3}{(2^2)^3} * \frac{2^2}{3^2}[/tex]

[tex](\frac{3}{4})^3 * (\frac{2}{3})^2 = \frac{3^3}{2^6} * \frac{2^2}{3^2}[/tex]

Express as a singe fraction

[tex](\frac{3}{4})^3 * (\frac{2}{3})^2 = \frac{3^3*2^2}{2^6*3^2}[/tex]

Apply law of indices:

[tex](\frac{3}{4})^3 * (\frac{2}{3})^2 = \frac{3^{3-2}}{2^{6-2}}[/tex]

[tex](\frac{3}{4})^3 * (\frac{2}{3})^2 = \frac{3^1}{2^4}[/tex]

[tex](\frac{3}{4})^3 * (\frac{2}{3})^2 = \frac{3}{16}[/tex]

Answer:

Step-by-step explanation:

The mean for 2018 scores is:

[tex]M ean ( \overline X) = \dfrac{\sum x_i}{n}[/tex]

[tex]M ean ( \overline X) = \dfrac{74 + 78+79+77+75+73+75+77}{8}[/tex]

[tex]M ean ( \overline X) = \dfrac{608} {8}[/tex]

[tex]\mathbf{M ean ( \overline X) = 76}[/tex]

The standard deviation for 2018 scores is:

[tex]s = \sqrt{\dfrac{\sum ( x_i - \bar x)^2}{n- 1} }[/tex]

[tex]s = \sqrt{\dfrac{ ( 74 -76)^2+( 78 -76)^2+( 79 -76)^2+...+( 73 -76)^2+( 75 -76)^2+( 77 -76)^2}{8- 1} }[/tex]

[tex]s = \sqrt{\dfrac{30}{7} }[/tex]

s = 2.07

The mean and standard deviation for the year 2018 scores is:

                                     2018

Mean                                 76

Standard deviation       2.07

The mean for 2019 scores is:

[tex]M ean ( \overline X) = \dfrac{\sum x_i}{n}[/tex]

[tex]M ean ( \overline X) = \dfrac{71 + 70+75+77+85+80+71+79}{8}[/tex]

[tex]M ean ( \overline X) = \dfrac{608} {8}[/tex]

[tex]\mathbf{M ean ( \overline X) = 76}[/tex]

The standard deviation for 2019 scores is:

[tex]s = \sqrt{\dfrac{\sum ( x_i - \bar x)^2}{n- 1} }[/tex]

[tex]s = \sqrt{\dfrac{ ( 71 -76)^2+( 70 -76)^2+( 75-76)^2+...+( 80 -76)^2+( 71 -76)^2+( 79 -76)^2}{8- 1} }[/tex]

[tex]s = \sqrt{\dfrac{194}{7} }[/tex]

s = 5.26

The mean and standard deviation for the year 2019 scores is:

                                     2019

Mean                                 76

Standard deviation       5.26

Difference: Both the two years have the same mean but the 2019 scores have higher variation as compared to 2018 scores.

Thus, the variation in scores was higher in 2019.

Answer:

the amount of discount is $210

Step-by-step explanation:

30(.30)

90

90 is 30% of 300

subtract:

300-30= 210

Answer:$210

Step-by-step explanation:

Answer:

a

Step-by-step explanation:

The vertex of the function f(x) = x²+10 is (0,10). Correct option is (A).

Vertex form of equation is an alternate way of writing the equation of a parabola

The vertex form of an equation is
f(x)= a(x-h)²+k,

Here, h and k are constants

The given equation is,

f(x) = x²+10

To determine the vertex of the equation,

substitute x=0,

f(x)=0+10

f(x)=10

The vertex of the function f(x) is (0,10).

To learn more about Vertex form of equation on:

https://brainly.com/question/28938998

#SPJ2

Answer:

86 Remainder 3

Step-by-step explanation:

What is 347 Divided by 4?

We provide you with the result of the division 347 by 4 straightaway:

347 divided by 4 = 86.75

The result of 347/4 is a terminating decimal with 2 digits to the right of the decimal point.

347 divided by 4 in decimal = 86.75

347 divided by 4 in fraction = 347/4

347 divided by 4 in percentage = 8675%

Note that you may use our state-of-the-art calculator above to obtain the quotient of any two integers or decimals, including 347 and 4, of course. Repetends, if any, are denoted in ().

The conversion is done automatically once the nominator, e.g. 347, and the denominator, e.g. 4, have been inserted. No need to press the button, unless you want to start over.

Give it a try now with a similar division by 4.

What is the Quotient and Remainder of 347 Divided by 4?

Here we provide you with the result of the division with remainder, also known as Euclidean division, including the terms in a nutshell:

The quotient and remainder of 347 divided by 4 = 86 R 3

The quotient (integer division) of 347/4 equals 86; the remainder (“left over”) is 3.

347 is the dividend, and 4 is the divisor.

In the next section of this post you can find the frequently asked questions in the context of three hundred and forty-seven over four, followed by the summary of our information.

Three Hundred And Forty-Seven Divided by Four

You already know what 347 / 4 is, but you may also be interested in learning what other visitors have been searching for when coming to this page. The FAQs include, for example:

What is 347 divided by 4?

How much is 347 divided by 4?

What does 347 divided by 4 equal?

If you have read our article up to this line, then we take it for granted that you can answer these FAQs and similar questions about the ratio of 347 and 4.

347 Divided by 4

Observe that you may also locate many calculations such as 347 ÷ 4 using the search form in the sidebar. The result page lists all entries which are relevant to your query.

Give the search box a go now, inserting, for instance, three hundred and forty-seven divided by four, or what’s 347 over 4 in decimal, just to name a few potential search terms.

.To sum up, 347/4 = 86.75. The number has 2 decimal places. As division with remainder the result of 347 ÷ 4 = 86 R 3.

Answer:

C or D In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants. When a new substance is formed, the change is called a chemical change.

Step-by-step explanation:

hope this helps have a good rest of your night :) ❤

Answer:

x = -7/5  + 1/5  √22

Step-by-step explanation:

Hope this Helps!!

Answer:

It is y/4

Pls Click on thanks if this was useful

Answer:

y/4

hope it helps my friend

Answer:

n=1

Step-by-step explanation:

N is the number of times per year

Annually would be one time per year so n =1

Answer:

If interest is compounded yearly, then n = 1; if semi-annually, then n = 2; quarterly, then n = 4; monthly, then n = 12; weekly, then n = 52; daily, then n = 365; and so forth, regardless of the number of years involved. Also, "t" must be expressed in years, because interest rates are expressed that way.

Step-by-step explanation:

It's a snip-it from the web, but it worked for me.

Answer:

p ≥ 7/4

Step-by-step explanation:

may be the answer is :4g-2=8 ^-^

but donot depend in this answer it's not sure okay

Answer:

B. $99.75

Step-by-step explanation:

The expression is 5.25(3+9+7) which is 99.75

Answer:

c

Step-by-step explanation:

Answer:

160 .........................................................................

Answer:

Mr. Lai buys 2 1/4 pounds of red apples and 1 3/8 pounds of green apples. How many more pounds of red apples does he buy?

Answer:

The answer is 4

Step-by-step explanation:

Answer:

True: The smaller angle is 36°; The larger angle is 54°

False: The smaller angle is 18°. The larger angle is 72°

If you create an equation using this scenario, it would be (18+x)+x=90, because complementary angles sum up to 90°. Add the like terms to get 18+2x=90. Subtract 18 on both sides to get 72. Divide 2 on both sides to result with x=36. Subtract 90 with 36 to get 54. The smaller angle is 36° and the larger angle is 54°.

Answer: 1.84 I think because with 3.25 you can buy a bag of chips at Walmart  with that much

Answer:

multiplication answer: 6,435

addition answer: 38

subtraction answer: -12

42+1/2x=48

1/2x=6

x=6*2

x=12

12 months or a year until he could ride a roller coaster.

Answer:

wait thats blurd plis paki ayos ng picture thanks

Answer:

retake the pictures please its blurry

Step-by-step explanation:

so I can help you

Answer:

A: leading coefficient: 1; constant term: -3; degree: 2

Step-by-step explanation:

got it right on edg.

Answer:

true

Step-by-step explanation:

Answer:

4:1

Step-by-step explanation:

2m:50cm

200cm:50cm

4:1