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3 years ago

{ 4 QUESTIONS } Need Help!!

Mathematics

1 answer:

Degger [83]3 years ago

4 0

Answer:

1. A

2.C

3.C

4.C

Step-by-step explanation:

1. 16-(-11) would be 16+11, which equals 27

2. 7-(-16) is just 7+16, which is 23

3. -12-39, You add 39 to 12, which is 51, and add the Negative sign so its C.51

4. Step by step, 5-8 is -3, and -3+-13 would be 10.

Calculators Help!

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Please help last question

Artyom0805 [142]

so I think 37\12 is the answer to this question

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3 years ago

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And this one too (1 answer is off on down.)

agasfer [191]

Answer:

(-3,4)

Step-by-step explanation:

I'm not sure of how to explain how it is but basically the point it rotated and then it ends up on the coordinate, (-3,4)

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3 years ago

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Subtract -13xy from -5xy so<br> -5xy -(-13xy)=?

S_A_V [24]

Answer:

8xy

Step-by-step explanation:

Subtract -13xy from -5xy

-5xy - (-13xy) =

-5xy + 13xy =

8xy

<em>good luck, i hope this helps:)</em>

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3 years ago

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Please help!!!!!!!!!!! ASAPPPPPPPPP

Zanzabum

When you match the pattern of (x+y)⁴ to (a+b)ⁿ, you see that a=x, n=4. Then the first term aⁿ can be found by substituting these values for "a" and "n":

... x⁴

7 0

3 years ago

Can someone help me with this ?

romanna [79]

Answer:

$\large\boxed{S.A.=467\ in^2}$

Step-by-step explanation:

We have two triangles and three rectangles.

The formula of an area of a triangle:

$A_{triangle}=\dfrac{bh}{2}$

b - base

h - height

The formula of an area of a rectangle:

$A_{rectangle}=lw$

l - length

w - width

TRIANGLE:

b = 11 in, h = 7 in

$A_1=\dfrac{(11)(7)}{2}=\dfrac{77}{2}=37.5\ in^2$

RECTANGLE 1:

l = 11 in, w = 14 in

$A_2=(11)(14)=154\ in^2$

RECTANGLE 2:

l = 9 in, w = 14 in

$A_3=(9)(14)=126\ in^2$

RECTANGLE 3:

l = 8 in, w = 14 in

$A_4=(8)(14)=112\ in^2$

The Surface Area:

$S.A.=2A_1+A_2+A_3+A_4$

Substitute:

$S.A.=2(37.5)+154+126+112=467\ in^2$

6 0

3 years ago