3 years ago

Help..........................

Mathematics

1 answer:

xeze [42]3 years ago

3 0

Answer:

-21 yd

Step-by-step explanation:

$-31-2+12=-21$

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If x = y, y = 2 then 3x =

kenny6666 [7]

Answer:

x=y

y=x

y=2

x=2

(3)(2)

3 times 2 is 6

Step-by-step explanation:

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3 years ago

What is the surface area of a square pyramid with a height of 12 mm and a base that measures 10 mm on each side? Round to the ne

Darya [45]

Answer:

360mm^2

Step-by-step explanation:

Surface area of a square pyramid= Base area + Lateral area

Base area=10mm × 10mm

=100mm^2

Lateral area = (4) × (1/2) × (10) × √(12) ^ 2 + (5) ^ 2)

= 260 mm^2

Surface area= Base area + Lateral area

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4 years ago

Find the amount of money in an account after 9 years if $8,000 is

Anna35 [415]

Answer:

8,000(1+.09/4) to the 4×9 power

8,000(1.0225) to the 36 power

8,000(2.227816)

answer is $17,822.53

7 0

3 years ago

A shape is made of 9 right triangles of equal size and three identical rectangles. Each rectangle measures 7 mm wide and 3 mm hi

e-lub [12.9K]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

Circle the equations that represent quadratic functions a. y=3x+1 b. y=x^2+3 c. y=x^3-3 d. x^2+3y=8

Elena L [17]

Answer:

$B. y=x^2+3 \\\\D.$ $x^2+3y=8$

Step-by-step explanation:

A quadratic function is a function in which the highest power of the unknown variable is 2.

Formally, a quadratic function is defined as a function of the form:

$f(x)=ax^2+bx+c, a\neq 0$

From the given options, only B and D has the highest power as 2. Therefore, the equations that represent quadratic functions are:

$B. y=x^2+3 \\\\D.$ $x^2+3y=8$

4 0

4 years ago