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4 years ago

I need help pleaseee

Mathematics

1 answer:

laiz [17]4 years ago

8 0

7 because 3 times 7 is equals 21

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PLEASE HELP! 20 POINTS

OLEGan [10]

Answer:

1,215 i think please be right

7 0

3 years ago

Urgent!!!!?

ExtremeBDS [4]

Answer:

C) 6 feet

Step-by-step explanation:

The diagram is shown in the attachment.

Using the Pythagoras Theorem,

$x^2=4^2+4^2$

$x^2=16+16$

$x^2=32$

We take positive square root to obtain

$x=\sqrt{32}$

$x=4\sqrt{2}$

x=5.66ft

Rounding to the nearest feet we have x=6ft

4 0

4 years ago

A bakery offers a sale price of $3.45 for 4 muffins. What is the price per dozen?

Vlad [161]

Answer:

Cost of 4 muffins = $3.45

Cost of 12 muffins = (3 sets of x 4 muffins = 12)

Cost of 3 sets of muffins = $3.45 x3 = $10.35

Step-by-step explanation:

3 0

3 years ago

A 12-foot ladder is leaning across a fence and is touching a higher wall located 3 feet behind the fence. The ladder makes an an

Svetllana [295]

Answer:

3 feet

Step-by-step explanation:

A 12-foot ladder is leaning across a fence and is touching a higher wall located 3 feet behind the fence. The ladder makes an angle of 60 degrees with the ground.

ladder is 12 foot

The ladder makes an angle of 60 degrees with the ground.

It form a right angle triangle . ladder is the hypotenuse

$cos(60)=\frac{x}{12}$

$0.5= \frac{x}{12}$

multiply 12 on both sides

x= 6

the distance from the base of the ladder to the bottom of the fence

x-3 = 6-3=3 feet

7 0

4 years ago

How to substitute x=-2 and x=5 into 2x^2+6-20=0 to check my work

Komok [63]

First answer (x=-2)
...
(2)[(-2)^2]+6-20
2(4)+6-20
8+6-20
14-20
-6 (answer)

Second answer (x=5)
...
(2)[(-5)^2]+6-20
2(25)+6-20
50+6-20
56-20
36 (answer)
Hope this helps!

4 0

3 years ago