All categories

3 years ago

Evaluate and match each expression on the left to its value on the right, when x=8 and y=3.

Mathematics

1 answer:

Crank3 years ago

6 0

Answer:

12-y------------> 9

3x-y------------>21

4y-10----------->2

1/4 xy-----------> 6

Solution,

Given,

X=8

y=3

Now,

$1. \: \: 12 - y \\ \: \: \: = 12 - 3 \\ \: \: = 9 \\ 2. \: \: 3x - y \\ \: \: = 3 \times 8 - 3 \\ \: \: = 21 \\ 3. \: \: 4y - 10 \\ \: \: = 4 \times 3 - 10 \\ \: = 12 - 10 \\ \: \: = 2 \\ 4. \: \: \frac{1}{4} xy \\ \: \: = \frac{1}{4} \times 8 \times 3 \\ = 6$

hope this helps...

Good luck on your assignment...

You might be interested in

The area of a circle is 616cm find the radius

Leokris [45]

<h3>Given :-</h3>

Area of Circle = 616 cm²

Radius of a circle = ?

<h3>Solution :-</h3>

☼︎ Radius of the Circle;

<h3>Using Formula:</h3>

$\\ \red\bigstar {\underline{\boxed{\color{springgreen}{\textsf{ \textbf{ \: Area \: of \: circle= \: \: π \: r \: ² \: }}}}}} \\\\$

Putting values in the formula;

$\\ \sf \implies \: Area \: = \: \pi \: r \: ^{2} \\$

$\\ \sf \implies \: 616 \: = \:\frac{22}{7} \times \: r \: ^{2} \\$

$\\ \sf \implies \: 616 \: \times \: \frac{7}{22} \: = \: \: r \: ^{2} \\$

$\\ \sf \implies \: \: \frac{ \: \: 4312 \: \: }{22} \: = \: \: r \: ^{2} \\$

$\\ \sf \implies \: \: \cancel{\frac{ \: \: 4312 \: \: }{22} }\: = \: \: r \: ^{2} \\$

$\\ \sf \implies \: \: \: 196 \: \: = \: \: r \: ^{2} \\$

$\\ \sf \implies \: \:r \: ^{2} = \: 196 \: \: \: \: \\$

$\\ \sf \implies \: \:r \: = \sqrt{ \: 196 \: } \\$

$\\ \bf \implies \: \:Radius \: = 14 \: cm \\$

henceforth, the Radius of a circle is 14 cm ...!!

6 0

1 year ago

Read 2 more answers

Does the ratios 13/16 and 1/2 form a proportion?

SCORPION-xisa [38]

Answer:

im pretty sure it doesn’t

Step-by-step explanation:

4 0

2 years ago

Brainliest and 20 points!!!!

denis23 [38]

Answer:

Step-by-step explanation:

The n th term ( explicit formula) for a geometric sequence is

f(n) = a $(r)^{n-1}$

where a is the first term and r the common ratio

Here a = 2 and r = - 8 ÷ 2 = - 4, thus

f(n) = 2 $(-4)^{n-1}$

6 0

3 years ago

What is the range for this set of data? 38, 17, 55, 40 02 38 39 O 72

34kurt

Answer:

Step-by-step explanation:

The range is the difference between the highest value and the lowest value. Here the highest value is 55 and the lowest 17. Therefore, the range is take away 17 from 55 which equals to 38

8 0

2 years ago

PLZ HELP I AM FAILING AND NEED HELP!!!!

MA_775_DIABLO [31]

Answer: About 13% of the school would be in chess club.

Step-by-step explanation: Out of 85 students, 11 were in chess club. So:

11 / 85 = 0.1294117647, or approximately 13%.

If it's not too much to ask, may I have brainliest?

5 0

3 years ago