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ArbitrLikvidat [17]
4 years ago
5

Find the measure of each angle indicated

Mathematics
1 answer:
qaws [65]4 years ago
6 0

Answer:

D) 45 degrees

Step-by-step explanation:

145 = 100 + x

Subtract 100 from both sides

45 = x

OR

180 - 145 = 35

<FEG = 35

100 + 35 + x = 180

135 + x = 180

Subtract 135 from both sides

x = 45

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Define the variables set a system of linear questions,solve the system and check your solution.
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7) Larger number= 30
Smaller number= 18

8) He bought 4 videogames and 11 movies.

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3 years ago
Solve the formula for the variable h.
Ede4ka [16]
V=\frac{bh}{3}\ \ \ \ \ \ \ |multiply\ by\ 3\\\\3V=bh\ \ \ \ \ \ |divide\ by\ b\\\\h=\frac{3V}{b}
5 0
3 years ago
1000 cylindrical metal bars of length 120 m and diameter 0.2 m , as shown below, are to be used in constructing a bridge. He bar
Troyanec [42]

Answer:

the number of of litres of paint to the nearest litre for 1000 bars is 1 litre

Step-by-step explanation:

Given that:

1000 cylindrical metal bars have :

a length of 120 m

and a diameter of  0.2 m

The volume of the cylindrical bar can be calculated by the formula:

V= \pi r^2 h

where ;

radius   r=\dfrac{d}{2}

r = \dfrac{0.2}{2}

r = 0.1 m

the length of the cylindrical metal bars is equal to the height of the metal bar = 120 m

Thus the volume can now be calculated as follows:

V= \pi* 0.1^2*120

V = 3.77 m³

So; from the given information.

One litre of paint will cover 4m³

and we want to find how many litres of paint will be used for the 1000 cylindrical bars.

If        1 litre = 4m³

Then  x litre = 3.77 m³

4x = 1 × 3.77

x = \dfrac{1*3.77 }{4}

x = 0.9425 litres

x = 1 litres to the nearest litres.

Thus ; the number of of litres of paint to the nearest litre for 1000 bars is 1 litre

4 0
4 years ago
Can someone explain how to do these. Also on number 2, how do u find the ratio ?
KIM [24]

9514 1404 393

Answer:

  2. D

  3. B

  4. D

  5. A

Step-by-step explanation:

2. Write the ratio using the given words, then fill in the corresponding numbers. Factor out the greatest common factor.*

  soccer players : volleyball players = 84 : 36 = 12·7 : 12·3 = 7 : 3

__

3. The <em>angle bisector</em> has angle marks on either side of it. The only angle marks are at angle G, where GL is the bisector.

__

4. The <em>median</em> is drawn from a vertex to the midpoint of the opposite side. The only side with a midpoint marked is IG with midpoint J. The median is HJ.

__

5. An altitude is drawn from a vertex to the opposite side, where it meets at right angles. Two right angles are shown: at J and at K. The perpendicular line at J does not meet any vertex. The perpendicular line at K meets vertex I, so KI is the altitude.

_____

* For larger numbers, or ones whose factors you aren't familiar with, it can be useful to know Euclid's method for finding the greatest common factor (GCF). Divide the larger number by the smaller and keep the remainder. If the remainder is 0, the smaller is the GCF. If not, replace the larger number with the remainder and repeat.

Here, that looks like ...

  84 / 36 = 2 r 12

  36 / 12 = 3 r 0 . . . . . 12 is the GCF

4 0
3 years ago
Solving by substitution​
Lesechka [4]
* يدرج صوت سيارة الإسعاف*
6 0
3 years ago
Read 2 more answers
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