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serg [7]
3 years ago
7

Evaluate the expression when b=-2 and y=4. -y+5b

Mathematics
2 answers:
hammer [34]3 years ago
7 0
You’d input the values into your equation

giving you the equation

-4+5(-2)

when you solve that you’d get

-14
tangare [24]3 years ago
4 0

Answer:

-14

Step-by-step explanation:

-y+5b

insert the values

-4+5(-2)

multiply

-4-10

subtract

-14

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Is it possible for the two triangles described below to be similar? Two angles of one triangle measure 60° and 70°. Two angles o
Aleonysh [2.5K]

Answer:

  no

Step-by-step explanation:

Similar triangles have angles with the same measures.

  angles in the first triangle are 50°, 60°, 70°.

  angles in the second triangle are 50°, 50°, 80°.

The angles do not have the same values, so the triangles cannot be similar.

_____

<em>Comment on the question</em>

When 2 of the three angles are different, the third angle cannot make the triangles similar. We don't even need to compute the third angle to answer this question.

5 0
3 years ago
QRST is a square. PQ = 2√ RU = 4<br> What is the length of SU? Round to the nearest tenth.
777dan777 [17]

Answer:

SU=3.5\ units

Step-by-step explanation:

step 1

In the isosceles right triangle PQT

PQ=PT ----> because is an isosceles triangle

Applying the Pythagoras Theorem

we have

PQ=PT =\sqrt{2}\ units

QT^{2}=PQ^{2} +PT^{2}

substitute the values

QT^{2}=\sqrt{2}^{2} +\sqrt{2}^{2}

QT^{2}=4

QT=2\ units

step 2

In the square QRST

RS=QT=2\ units

step 3

In the right triangle RSU

Applying the Pythagoras Theorem

RU^{2}=RS^{2} +SU^{2}

we have

RU=4\ units

RS=2\ units

substitute the values and solve for SU

4^{2}=2^{2} +SU^{2}

SU^{2}=4^{2}-2^{2}

SU^{2}=12

SU=2\sqrt{3}\ units

SU=3.5\ units

8 0
3 years ago
each brick in the wall has a dimension shown below 8 in 4 in 2.25in what is the volume of each brick?
Elena-2011 [213]

Answer:

  72 cubic inches

Step-by-step explanation:

The volume of a rectangular prism shape, such as a brick, is the product of its dimensions:

  V = LWH

  V = (8 in)(4 in)(2.25 in) = 72 in^3

The volume of each brick is 72 cubic inches.

8 0
4 years ago
Help me please<br> Find the value of x.
Otrada [13]

Answer:

110

Step-by-step explanation:

180-35-35

8 0
3 years ago
PLEASE HELP!!!
Brut [27]

Answer:PLEASE HELP!!!

7 0
3 years ago
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