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3 years ago

What is the image of (9,-7) after a reflection over the y-axis?

Mathematics

1 answer:

photoshop1234 [79]3 years ago

7 0

the answer is (-9,-7) it flips into the 3rd quadrant.

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a coin collector has 36 dimes and nickels with a total face value of $2.80. they are actually worth a lot more. how many of each

Juliette [100K]

Answer:

16 nickels and 20 dimes

Step-by-step explanation:

16x5=80

20x10=200

80+200=280

280 cents = $2.80

8 0

3 years ago

Factorise fully : 4(x - y)^2 - 9(x + y)^2

sergeinik [125]

Answer:

- ( 5x + y ) ( x + 5y )

-5x^2 - 5y^2 - 26xy

8 0

3 years ago

Read 2 more answers

Toby's little brother used his set of wooden blocks to build a giant tower. He stacked up 30 blocks to make a tower that was 64

dangina [55]

Solution to the question:

Number of blocks stacked: 30

Height of tower: 64 inches

Height of each block: ?

To find the height of each block, we divide the total height of the tower with the number of blocks stacked

Therefore,

Height of each block: 64/30 = 2.13 inches

So, the height of each block is 2.13 inches.

8 0

3 years ago

Which equation has the least steep graph?

MAVERICK [17]

Answer:

$y=\frac{1}{4}x+6$

Step-by-step explanation:

$y=\frac{1}{4}x+6$ is the least steeped graph

The greater the slope, the steeper the line.
Also you use the absolute values of the slopes when determining the steepness.

So here it would be: $\frac{3}{4},7,\frac{1}{4},2$
Now, arrange them from least to greatest: $\frac{1}{4},\frac{3}{4},2,7$

As you can see, $\frac{1}{4}$ is the smallest number/slope.

Hope this helps!

7 0

3 years ago

Find the lateral area for the pyramid with the equilateral base

likoan [24]

<h3>The lateral area for the pyramid with the equilateral base is 144 square units</h3>

Solution:

The given pyramid has 3 lateral triangular side

The figure is attached below

Base of triangle = 12 unit

Find the perpendicular

By Pythagoras theorem

$hypotenuse^2 = opposite^2 + adjacent^2$

Therefore,

$opposite^2 = 10^2 - 6^2\\\\opposite^2 = 100 - 36\\\\opposite^2 = 64\\\\opposite = 8$

Find the lateral surface area of 1 triangle

$\text{ Area of 1 lateral triangle } = \frac{1}{2} \times opposite \times base$

$\text{ Area of 1 lateral triangle } = \frac{1}{2} \times 8 \times 12\\\\\text{ Area of 1 lateral triangle } = 48$

Thus, lateral surface area of 3 triangle is:

3 x 48 = 144

Thus lateral area for the pyramid with the equilateral base is 144 square units

5 0

3 years ago