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photoshop1234 [79]

3 years ago

11

Answer two questions about Equations AAA and BBB:

2 answers:

andrew-mc [135]3 years ago

7 0

Answer:

answer is d

Step-by-step explanation:

MAVERICK [17]3 years ago

6 0

Answer:

A AND B

Step-by-step explanation:

They both have the same solution

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Sydney asked her friends to write down the number of hours they practice their instruments each week. The data is shown.

AnnyKZ [126]

The median in this data set is C. 5

8 0

3 years ago

Solve each pair of equations by substituting <br><br><br> 2x + y = 3<br> 4x + 3y = 1

Usimov [2.4K]

Step: Solve
2
x
+
y
=
3
for y:
2
x
+
y
=
3
2
x
+
y
+
−
2
x
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−
2
x
(Add -2x to both sides)
y
=
−
2
x
+
3

Step: Substitute
−
2
x
+
3
for
y
in
4
x
+
3
y
=
1
:
4
x
+
3
y
=
1
4
x
+
3
(
−
2
x
+
3
)
=
1
−
2
x
+
9
=
1
(Simplify both sides of the equation)
−
2
x
+
9
+
−
9
=
1
+
−
9
(Add -9 to both sides)
−
2
x
=
−
8
−
2
x
−
2
=
−
8
−
2
(Divide both sides by -2)
x
=
4

Step: Substitute
4
for
x
in
y
=
−
2
x
+
3
:
y
=
−
2
x
+
3
y
=
(
−
2
)
(
4
)
+
3
y
=
−
5
(Simplify both sides of the equation)

Answer:
x
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and
y
=
−
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6 0

3 years ago

Read 2 more answers

What is the area of ABC?

notsponge [240]

Let D be the Intersection of Height of the Triangle and Base of the Triangle BC

From the Figure, We can notice that Triangle ADB is a Right angled Triangle.

We know that, In a Right angled Triangle :

$\bigstar$ (Hypotenuse)² = (First Leg)² + (Second leg)²

In Triangle, ADB : AB is the Hypotenuse, AD is the First leg and BD is the Second leg

Given : AB = 15 and BD = 9

Substituting the values, We get :

$:\implies$ (15)² = (AD)² + (9)²

$:\implies$ 225 = (AD)² + 81

$:\implies$ (AD)² = 225 - 81

$:\implies$ (AD)² = 144

$:\implies$ (AD)² = (12)²

$:\implies$ AD = 12

We know that, In a Right angled Triangle :

$\bigstar\;\;\boxed{\mathsf{Tan\theta = \dfrac{Opposite\;Side}{Adjacent\;Side}}}$

Now, Consider Triangle ADC : With respect to 45° Angle, AD is the Opposite Side and DC is the Adjacent Side

$:\implies \mathsf{In\;Triangle\;ADC,\;Tan45^{\circ} = \dfrac{AD}{DC}}$

$\mathsf{:\implies 1 = \dfrac{12}{DC}}$

$:\implies$ DC = 12

$:\implies$ Total Length of the Base (BC) = BD + DC

$:\implies$ Total Length of the Base (BC) = 9 + 12

$:\implies$ Total Length of the Base (BC) = 21

We know that, Area of the Triangle is given by :

$\bigstar\;\;\boxed{\mathsf{Area = \dfrac{1}{2} \times Base \times Height}}$

In Triangle, ABC : AD is the Height and BC is the Base

$:\implies \mathsf{Area\;of\;the\;Triangle\;ABC = \dfrac{1}{2} \times BC \times AD}$

$:\implies \mathsf{Area\;of\;the\;Triangle\;ABC = \dfrac{1}{2} \times 21 \times 12}$

$:\implies \mathsf{Area\;of\;the\;Triangle\;ABC = (21 \times 6)}$

$:\implies \mathsf{Area\;of\;the\;Triangle\;ABC = 126}$

7 0

3 years ago

The rectangle below has an area of 8x^5+12x^3+20x^2.

Y_Kistochka [10]

Answer:

The width of the rectangle is 4x^24x

2

4, x, squared

The length of the rectangle is 2x^3+3x+52x

3

+3x+5

Step-by-step explanation:

5 0

4 years ago

Read 2 more answers

If f(x) = 3^+ 10 and g(x) = 2x - 4, find (f - g)(x).

just olya [345]

Answer:

3^x -2x +14

Step-by-step explanation:

I will assume you mean 3^x in the function f(x)

f(x) = 3^x+ 10

g(x) = 2x - 4

(f - g)(x) = 3^x+ 10 - (2x - 4)

Distribute the minus sign

= 3^x+ 10 - 2x + 4

= 3^x -2x +14

8 0

3 years ago