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Ratling [72]
3 years ago
5

The two triangles are similar. What is the value of x?

Mathematics
1 answer:
Tcecarenko [31]3 years ago
4 0
If they are similar, their sides are proportional. The scale factor would be 20/28, which is 5/7.

5/7 = 3x/4x+2
Cross multiply
20x+10 = 21x
subtract 20x on both sides
10 = x

x = 10
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Superman wants to get as much Kinetic energy (KE) as he can when hitting a baseball. He asks you if he should use a slightly hea
AysviL [449]

Answer: Swing twice as fast

Explanation: If superman wants to get a lot of kinetic energy he should swing fast. Kinetic energy is the energy of motion/movement so that means the  more you do something fast the more KE you will get and if you do something twice as fast then you will gain more kinetic energy.

8 0
3 years ago
plzzz finish 4, 5, 6, 9, 10, 11, 12, 14, and 15 you dont have to answer all but atleast anwer like 2 or 3 \( i scratched out the
nika2105 [10]

Answer:

4. -4

5. -2

6. -3

Step-by-step explanation:

4. -12 = 5r + 8

Subtract 8 from both sides;

-20 = 5r

Divide both sides by 5;

-4 = r OR r = -4

5. -6p - 3 = 9

Add 3 to both sides;

-6p = 12

Divide both sides by -6

p = -2

6. -14 = 4x - 2

Add 2 to both sides;

-12 = 4x

Divide both sides by 4;

-3 = x OR x = -3

8 0
3 years ago
1. Walter stopped at the grocery store and
slega [8]

Answer:

$8.48

Step-by-step explanation:

Total of Items:

Add up the prices of all the items he bought

soup+oranges+newspaper

1.99+3.49+2.50=7.98

$7.98

Sales Tax:

Multiply his total by the sales tax rate

7.98*6.25%

Convert 6.25% to a decimal

6.25/100=0.0625

7.98*0.0625=0.49875

0.49875

Total With Tax

Add the tax to his total without tax

7.98+0.49875=8.47875

Round to the nearest cent, or hundreth

$8.48

4 0
3 years ago
I need to know number six and thank you guys for all the help
Zigmanuir [339]

Answer:

D

Step-by-step explanation:

First of all, a very easy way is to count all the rectangles and then count the squares that are shaded and have balloons.

You'll get 7 squares that are shaded and have balloons and 16 rectangles in total.

So the fraction will be \frac{7}{16}

Another simple way is to just multiply \frac{7}{8} and \frac{1}{2}

\frac{7}{8}*\frac{1}{2}=\frac{7}{16}

4 0
4 years ago
Please help me ASAP!!
REY [17]
<h2>Hello!</h2>

The answer is: f(x) = 2x^{2}

<h2>Why?</h2>

Quadratic function describes the graph of a parabola and they are formed by a quadratic term (x^{2}) a linear term (bx) and a constant number (c). Quadratic terms have an exponent of 2 and linear terms have an exponent of 1.

For this situation, we have only the quadratic term (x^{2}) which is enough to know that there is a quadratic function.

Have a nice day!

8 0
4 years ago
Read 2 more answers
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