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2 years ago

Work out the value of each expression if x=4 and y=6 i 3x+9 ii 4x-y

Mathematics

1 answer:

Sergio [31]2 years ago

4 0

Answer:

i) 21 and ii) 6

Step-by-step explanation:

i) If X=4 and Y=6, then:

3X+9, replacing X

3(4) + 9

12 + 9

ii) 4X-Y

4(3) - 6

12 - 6

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Find the measure of the exterior angle.

MaRussiya [10]

Answer:

$120 \degree$

Step-by-step explanation:

The exterior angle in a triangle is equal to the sum of the interior opposite angles in a triangle

Therefore,

$90 + x = 4x$

Now solve for x

$90 + x = 4x \\ 90 = 4x - x \\ 90 = 3x \\ \frac{90}{3} = \frac{3x}{3} \\ 30 \degree = x$

Now let's solve for the exterior angle

$4x \\ 4 \times 30 \\ 120 \degree$

Hope this helps you.

Let me know if you have any other questions :-)

4 0

3 years ago

In 1-6, find the area of each parallelog<br>2.<br>100 ft<br>50 ft

Mumz [18]

SOLUTION

The area of a parallelogram is given as:

$A=b\times h$

From the given figure

$b=50ft,h=100ft$

Substitute these values into the equation

$\begin{gathered} A=50\times100 \\ A=5000ft^2 \end{gathered}$

Therefore, the area of the parallelogram is

$5000ft^2$

4 0

1 year ago

HELPP PLEASE NEED ASAP!!

Maksim231197 [3]

F(x)=2x-1 is the answer

4 0

3 years ago

Read 2 more answers

What is the slope of the line that passes through the points (3, 5) and (-1, 5)

Marianna [84]

Answer:

Step-by-step explanation:

solve with y2-y1 / x2-x1

5-5 is 0

-1-3 is -4

0/4 is 0

slope is 0

5 0

3 years ago

There are 660 counters in a bag 1/6 of the counters are red 25% are blue and the rest are green how many green counters are ther

allsm [11]

Answer:

385 counters

Step-by-step explanation:

Since 1/6 of the counters are red and 1/4 of the counters are blue, there are:

1 - (1 / 6) - (1 / 4) = 7 / 12

Multiply it to find green:

660 x (7 / 12) = 385 counters

6 0

3 years ago