2 years ago

What construction tool would be used to measure an angle?

Mathematics

1 answer:

iVinArrow [24]2 years ago

4 0

Answer:

A protractor.

Step-by-step explanation:

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4x – 3y=8<br> 2. 5x – 2y = -11

AlladinOne [14]

Answer:

$x = -7$

$y = - 12$

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

$x = \frac{3}{4}y + 2$

Plug this expression for x in the bottom equation to get

$5( \frac{3}{4}y + 2) - 2y= - 11$

We expand to obtain

$\frac{15}{4} y + 10 - 2y = - 11$

Multiply through by 4

$15y + 40 - 8y = - 44$

Group similar terms

$15y - 8y = - 44 - 40$

$7y = - 84$

$y = - \frac{84}{7} =-12$

This means

$x = -12\times \frac{3}{4} + 2$

$x = - 7$

6 0

3 years ago

Calvin has 13 coins , all of which are quarters and nickels. The coins are worth $2.45. How many of each coin does Calvin have ?

zalisa [80]

Answer:

Step-by-step explanation:

6 0

2 years ago

Geometry proof<br> help please

Aleks [24]

JK = MN because of Given

∠JLK = ∠MLN because of the vertical angle theorem

JL = LN because of definition of midpoint

ΔJLK = MLN because of SAS

∠K = ∠N because corresponding angles of congruent triangles are congruent.

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6 0

2 years ago

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On a number line, what is the distance between -0.6 to -0.4?

Mila [183]

Answer is B
-0.6- (-0.4)= -0.6+0.4= -0.2

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3 years ago

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Dan earns £7.80 per hour. How much will he earn for 7 hours work

katen-ka-za [31]

Answer: £54.60