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3 years ago

What is -34 1/2 - 5 1/2

2 answers:

8 0

Answer is -40 two negatives stay negative because they are not multiplying and then just add the 1/2s together to get to -40

Verizon [17]3 years ago

3 0

The answer is -40 because if you get rid of the negative sign and add instead of subtract... you get 40 so its like adding in the opposite direction.

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What is the slope-intercept form of the equation y +18 - 2(x - 1)?

Nutka1998 [239]

The answer is D.y=-2x-20

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3 years ago

Please help!!

valkas [14]

A calculator can show you the answer to these very quickly.

$\dfrac{7.488\cdot 10^{-8}}{3.12\cdot 10^{2}}=\dfrac{7.488}{3.12}\times 10^{(-8-2)}\\\\=2.4\cdot 10^{-10}$

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3 years ago

From a boat on the lake, the angle of elevation to the top of a cliff is 27°57'. If the base of the cliff is 128 feet from the b

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3 years ago

1. Write the equation for a circle with center (1/2,3/7) and radius √13.

zhuklara [117]

Answer:

(x -1/2)^2 + (y -3/7)^2 = 13

Step-by-step explanation:

The equation for a circle with center (h, k) and radius r is ...

(x -h)^2 +(y -k)^2 = r^2

Filling in the given values results in the equation shown in the Answer space above.

8 0

4 years ago

Find the volume and surface area.

yawa3891 [41]

Answer: Formula used for pyramid is (V= 1/3 Bh SA: 1/2 P*l+B) Final answer is SA=110.4 V=64

Step-by-step explanation:

P= Perimeter

l= length

B= Base

To find the perimeter you add all the sides of the base. (4+4+4+4)=16

To find the length you can use Pythagorean Theorem which is a(squared) + b(squared) = c(squared) where c is the hypotenuse. $2^{2}$ + $12^{2}$ = $x^{2}$

4+144= $x^{2}$

164= $x^{2}$

$\sqrt{164}$ =x

x=12.8

To find the base it will be l*w (4*4)=16

Then you plug it in the formula for SA which will be

SA=1/2 16*12.8+16

SA=110.4

For Volume, it will be

V=1/3 Bh

V= 1/3 16(12)

V= 64

4 0

3 years ago