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stich3 [128]
3 years ago
13

Which expression is equivalent to StartRoot negative 80 EndRoot? Negative 4 StartRoot 5 EndRoot Negative 4 StartRoot 5 EndRoot i

4 StartRoot 5 EndRoot i 4 StartRoot 5 EndRoot
or

Which expression is equivalent to √-80


A. -4√5

B. -4√5i

C. 4√5i

D. 4√5
Mathematics
2 answers:
fomenos3 years ago
8 1
The answer is D. 4√5
hichkok12 [17]3 years ago
4 1

Answer:

C. 4√5i

Step-by-step explanation:

on edge

please vote brainliest i have never gotten it before

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3/7÷1/2 how do you graph this
Luda [366]
3/7 divided 1/2 is the same as 3/7 times 2 which is 6/7. 

Not sure what you mean by graphing it though. Like on a number line? There is no x or y in your equation. 
6 0
4 years ago
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How many 14-1/4" long pieces can be cut from a 86' long piece of angle iron? Allow 1/8 waste for each cut
kkurt [141]
The number of pieces that we could have in 86' if were going to cut it by 14 1/4 long with 1/8 waste for each cut is 5.98 pieces. This is computed by converting first the fractions into decimal, 14.25 and 0.125, then add it together since there is a waste in every cut, 14.375. Then we will divide 86 inches by 14.375 inches.
6 0
3 years ago
Help.me its urgent<br>Find the total surface area and volum of given prism​
Marat540 [252]

Answer:

Total surface area = 434 cm²

Total volume = 470 cm³

Step-by-step explanation:

1. The prism can be decomposed into two rectangular prisms which are the bigger rectangular prism and the smaller rectangular prism

✔️Total surface area of the prism = (surface area of the bigger prism - area of the face joined to the smaller prism) + (surface area of the smaller prism - area of the face joined to the bigger prism)

Surface Area of bigger prism = 2(LW + LH + HW)

L = 10 cm

H = 8 cm

W = 9 - 5 = 4 cm

Area of bigger rectangular prism = 2(10*4 + 10*8 + 8*4)

= 304 cm²

Surface area of the smaller prism = 2(LW + LH + HW)

L = 10 cm

H = 3 cm

W = 5 cm

Area of bigger rectangular prism = 2(10*5 + 10*3 + 3*5)

= 190 cm²

Area of the face joining both rectangular prisms = L*W

L = 10 cm

W = 3 cm

Area = 10*3 = 30 cm²

✅total surface area of the prism = (304 - 30) + (190 - 30) = 274 + 160 = 434 cm²

2. Volume of the prism = volume of the bigger rectangular prism + volume of the smaller rectangular prism

✔️Volume of the bigger rectangular prism = L*W*H

L = 10 cm

H = 8 cm

W = 9 - 5 = 4 cm

Volume = 10*8*4 = 320 cm³

✔️✔️Volume of the bigger rectangular prism = L*W*H

L = 10 cm

H = 3 cm

W = 5 cm

Volume = 10*3*5 = 150 cm³

✅Total Volume of the prism = 320 + 150 = 470 cm³

8 0
3 years ago
Find the equivalent fractions and highlight common denominators
Zepler [3.9K]

Answer:

smh

Step-by-step explanation:

too ez is the answer is 12421418258475172583521838716523/12312313123651253612534

3 0
3 years ago
If SU= 2x - 12, find SU
alexira [117]
SU = 2x - 12
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12 = 2x
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x = 6

SU = 2x - 12
SU = 2(6) - 12
SU = 12 - 12
SU = 0

Answer:
SU = 0
7 0
3 years ago
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