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3 years ago

Evaluate the expression (-4)^2+12x2

Mathematics

1 answer:

Elza [17]3 years ago

7 0

Answer:

Step-by-step explanation:

step 1: (-4)^2=16

step2: 12X2=24

step3: 16+24+40

Ps: when you do a math that involves both addition and multiplication,

we should do multiplication and then addition

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What is the value of x?

jok3333 [9.3K]

$\\ \sf\longmapsto \dfrac{x}{10}=\dfrac{42}{15}$

$\\ \sf\longmapsto 15x=42(10)$

$\\ \sf\longmapsto 15x=420$

$\\ \sf\longmapsto x=\dfrac{420}{15}$

$\\ \sf\longmapsto x=28$

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2 years ago

Greatest common factor for 28y^7x^4u^3 and 8x^4u^5

Nataly [62]

Answer:

Step-by-step explanation:

$28y^{7} *x^{4} *u^{3} \\8x^{4} *u^{5}$

rewrite those 2 terms to better see what they have in common

$4*7 *x^{4} *u^{3} *y^{7} \\4*2*x^{4}*u^{3} *u^{2}$

because, 4*7 =28, 4*2=8, u³*u² =u^5, and multiplication is commutative

The greatest common factor is:

$4x^{4} u^{3}$

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3 years ago

Can sum1 answer these from least to created I need help?

PtichkaEL [24]

Answer:

for Earth it is 2.16 mm and Venus is 100.9 mm Pluto it is 250. millimeters make me it is 5.6 mm Mars it is 2.9 mm Sun it is 6.10 MM Jupiter it is a 70.10 MM of Saturn it is 25.8 MM Uranus it is 15.6 mm It Is 96.9 mm

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2 years ago

A tabletop is in the shape of a trapezoid. The lengths of the trapezoid's parallel sides are 48 inches and 40 inches. The height

goldenfox [79]

The equation is
$area = \frac{1}{2} (a + b)h$
If you put in the numbers you get
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This comes to 1056. So the answer is 1056 in^2

4 0

3 years ago

Read 2 more answers

The perimeter of a stop sign has a perimeter of 16x2 - 80x. What is the length of one side?

uranmaximum [27]

Since a stop sign is an octagon it has eight sides. So the perimeter will be:

p=8x, p=perimeter and x=side length. We are told that the perimeter is equal to:

16x^2-80x so we can say:

16x^2-80x=8x subtract 8x from both sides

16x^2-88x=0 factor out 8x

8x(2x-11), since we know x>0

x=11/2

x=5.5 units

7 0

2 years ago