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2 years ago

An athlete throws her javelin 9.5 yards. She throws it this distance 2 times. How far does she throw the javelin in total?

Mathematics

2 answers:

Len [333]2 years ago

8 0

She throws the javelin a total of 19 yards

Karo-lina-s [1.5K]2 years ago

3 0

Answer:

19 yd

Step-by-step explanation:

9.5 x 2 = 19

= 19 yd

Therefore, the athlete throws the javelin 19 yd in total.

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1. How many small squares are in Step 10?

Alex787 [66]

Answer:

110 squares

Step-by-step explanation:

= 10 x 11

= 110 small squares.

From the question,

Step one : • • = 1(2) small squares

Step two : • • • = 3 squares in two layers = 2(3) = 6 small squares

• • •

Step three : • • • • = 4 squares in 3 layers = 3(4) = 12 small squares

• • • •

7 0

3 years ago

For the period 1997-2003, the number of eggs y (in billions) produced in the United States can be modeled by the function y=-0.2

Viktor [21]

Answer:

Part a) The approximate years were 1998 and 2008

Part b) The graph in the attached figure

Step-by-step explanation:

Part a) we have

$y=-0.27x^{2}+3.3x+77$

For $y=80\ billion\ eggs$

Solve the quadratic equation

$80=-0.27x^{2}+3.3x+77$

$0.27x^{2}-3.3x+3=0$

we know that

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$0.27x^{2}-3.3x+3=0$

$a=0.27\\b=-3.3\\c=3$

substitute in the formula

$x=\frac{3.3(+/-)\sqrt{-3.3^{2}-4(0.27)(3)}} {2(0.27)}$

$x=\frac{3.3(+/-)\sqrt{7.65}} {0.54}$

$x=\frac{3.3(+)\sqrt{7.65}} {0.54}=11.23\ years$

$x=\frac{3.3(-)\sqrt{7.65}} {0.54}=0.99\ years$

therefore

The approximate years are

1997+11=2008

1997+1=1998

Part b)

Using a graphing tool

we have

$y=-0.27x^{2}+3.3x+77$

$y=80$

The solution of the system of equations is the intersection point both graphs

The intersection point are (0.99,80) and (11.23,80)

see the attached figure

therefore

The solution part a) is correct

3 0

4 years ago

Can you help me find x?<br> 37% of x is 44.03

balandron [24]

Answer:

119

Step-by-step explanation:

37% = 44.03

1% = 44.03 ÷ 37 = 1.19

100% = 1.19 x 100 = 119 (100% is x)

5 0

3 years ago

What is the value of x?

Aleks04 [339]

The answer of x is
X=84,8

5 0

3 years ago

Plz help me ........

Tju [1.3M]

Answer a is it

Step-by-step explanation

7 0

3 years ago