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Ann [662]
3 years ago
7

Evaluate the expression -2b+x when b=3 and x=-4

Mathematics
2 answers:
earnstyle [38]3 years ago
6 0

Answer:

-10 is the answer

Step-by-step explanation:

first things that you will replace each number in:

-2x3+(-4)=-10

Kryger [21]3 years ago
3 0

Answer:

the answer to the question is -10

Step-by-step explanation:

substitute the given into the question

-2(3)+(-4)

then open the parentheses/multiply

-6-4

then subtract them

-10

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•• quilt squares are cut on the diagonal to form triangular quilt pieces the hypotenuse of the resulting triangle is 10 inches l
qwelly [4]
<span>1) The problem says that the quilt squares are cut on the diagonal to form triangular quilt pieces. Then, the triangle pieces have angles of 45°, and the legs have the same lenght. So, you can solve the exercise by applying </span><span>the Pythagorean Theorem:
</span>
 h²:s²+s²
 h²=2s²
 h²/2=s²
 s=√(h²/2)

 "h" is the hypotenuse (h=10 inches) and "s" is the length of the sides.

 When you substitute the value of the hypotenuse into the formula s=√(h²/2), you obtain the sides length:

 s=√(h²/2)
 s=√(10²/2)
 s=5√2

 What is the side length of each piece? 

 The answer is: 5√2


 2)Tan(α)=Opposite/Adjacent

 α=30°
 Opposite=17
 Adjacent=x

 When you substitute these values into Tan(α)=Opposite/Adjacent, you obtain:

 Tan(α)=Opposite/Adjacent
 Tan(30°)=17/x
 x=17/Tan(30°)
 x=17√3

 Sin(α)=Opposite/Hypotenuse

 α=30°
 Opposite=17
 Hypotenuse=y

 Then, you have:

 Sin(30°)=17/y
 ySin(30°)=17
 y=17/Sin(30°)
 y=34
5 0
3 years ago
Find the area. Use 3.14 for pi and round to 10th place.
butalik [34]
I think it is 39.27 but double check.
3 0
3 years ago
Read 2 more answers
Fill in each of the missing parts of the hierarchy of the quadrilaterals. Include the properties of each of the figures.
Ber [7]

Answer:

I just edited the file you linked.

Download pdf
4 0
2 years ago
CANT GET WRONG<br><br> What is the measure of ∠ADC?<br> A) 42° <br> B) 47° <br> C) 121° <br> D) 131°
Dafna1 [17]
Add them
89+42=131


answer is D
7 0
3 years ago
Read 2 more answers
Please help asap 25 pts
Kazeer [188]
s=12\sqrt{4t}+10

for\ x=0\to y=12\sqrt{4\cdot0}+10=12\sqrt0+10=10\\for\ x=1\to y=12\sqrt{4\cdot1}+10=12\sqrt4+10=12\cdot2+10=34\\for\ x=4\to y=12\sqrt{4\cdot4}+10=12\sqrt{16}+10=12\cdot4+10=58\\for\ x=6\to y=12\sqrt{4\cdot6}+10=12\cdot2\sqrt6+10=24\sqrt6+10\approx69\\for\ x=10\to y=12\sqrt{4\cdot10}+10=12\cdot2\sqrt{10}+10=24\sqrt{10}+10\approx86\\for\ x=12\to y=12\sqrt{4\cdot12}+10=12\cdot4\sqrt3+10=48\sqrt3+10\approx93

\underline{x|\ 0|\ 1\ |\ 4|\ 6\ |10|12|}\\y|10|34|58|69|86|93|

\text{The graph in attachment}

\boxed{Answer:\ about\ \$93,000}

3 0
3 years ago
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