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erik [133]
3 years ago
12

2r+8-r=-7 Need help ASAP

Mathematics
2 answers:
Anvisha [2.4K]3 years ago
8 0

Answer:

r= (-15) is the answer to the question ok

Mumz [18]3 years ago
6 0

Answer:

2r + 8 - r = 7

r + 8 = 7

r = -1

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Find an angle between 0 degrees and 360 degrees that is coterminal with 950 degrees
QveST [7]

Answer:

40 degrees

Step-by-step explanation:

(to find coterminal angles to a given angle, we add 360 degrees to the given angle or subject 360 degrees from the given angle any angle any number of time).

-1400 degrees is negative angl, so to get the coterminal angle between 0 degrees and 360 degrees ( the smallest positive coterminal angle), we must add multiples of 360 degrees until we get a possitive coterminal angle:

-1400 degrees+(360 degrees*4)

=-1400 degrees+1440

=40 degrees

so the answer is 40 degrees

5 0
2 years ago
Which expression represents the volume of the pyramid? One-fifth(5.2)h cm3 StartFraction 1 Over 5 h EndFraction(5.2)h cm3 One-th
anyanavicka [17]

Answer:

1/3(5.2)h cm³

Step-by-step explanation:

A solid right pyramid has a regular hexagonal base with an area of 5.2 cm2 and a height of h cm. Which expression represents the volume of the pyramid?

One-fifth(5.2)h cm3 StartFraction 1 Over 5 h EndFraction(5.2)h cm3

One-third(5.2)h cm3 StartFraction 1 Over 3 h EndFraction(5.2)h cm3

Volume of the pyramid = 1/3 × area × height

Area = 5.2 cm²

Height = h cm

Volume of the pyramid = 1/3 × 5.2 cm² × h cm

= 1/3(5.2)h cm³

7 0
3 years ago
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Sally is making pastry dough. She mixes 1/3 cup of flour and 1/5 cup of sugar. If she wants to mix flour and sugar To make 16 cu
myrzilka [38]

Answer:

5 1/3 flour    3 1/5 sugar

Step-by-step explanation:

5 0
3 years ago
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VMariaS [17]

Answer:

if angle dfb and angle cea measure something other than 90degrees, then line we is not equal to line bf. in this case, line and and line cd intersect at a single point.

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3 years ago
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Point E is the midpoint of ab and point f is the midpoint of CD
Lorico [155]

AB is bisected by CD (TRUE). This is True because E is the midpoint between A and B and CD passes through E

CD is bisected by AB (FALSE) CD is bisected by point F and not AB

AE = 1/2 * AB (TRUE) since E is the midpoint of AB , E divides AB into two equal halves

EF = 1/2 * ED (FALSE) The true statement would have been CF = 1/2* CD

FD = EB (FALSE) sinc we do not know if CD and AB are of the same lengths

CE + EF = ED (TRUE) since F is the midpoint the sum of CE and EF is equal to ED



5 0
3 years ago
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