2 years ago

I have got two different answers and nether are write so I need help

Mathematics

2 answers:

Zolol [24]2 years ago

5 0

Give me a moment do you just need the bottom empty box or do you want me to do both?

makvit [3.9K]2 years ago

4 0

Answer:

i have same question but im getting help so hold on

Step-by-step explanation:

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Let $a_1$, $a_2$, . . . , $a_{10}$ be an arithmetic sequence. If $a_1 + a_3 + a_5 + a_7 + a_9 = 17$ and $a_2 + a_4 + a_6 + a_8 +

vfiekz [6]

a be first term and d be common difference

a+a+2d+a+4d+a+6d+a+9d=17
5a+21d=17--(1)

And

a+d+a+3d+a+5d+a+7d+a+9d=15
5a+25d=15--(2)

Eq(1)-Eq(2)

-4d=-2
d=1/2

Put in second one

5a+25d=15
a+5d=3
a+5/2=15
a=15-5/2
a=25/2

7 0

2 years ago

Is what digit of repeating pattern does 0.164 or 9/55 have

Trava [24]

Answer: 6 and 3 are shown repetitive if you do 9/55 in a calculator

6 0

2 years ago

What’s the correct answer for this ?

icang [17]

Answer:

Step-by-step explanation:

Since both the triangles as kept separately are similar, so we'll take proptionality of their sides to find one side

MP/ML=MN/MK

20/28=35/MK

CROSS MULTIPLYING

20×MK=28×35

MK=980/20

MK=49

5 0

2 years ago

A semicircle has an area of 76.97 squared km. Find it’s radius

shtirl [24]

Answer:

7 km

Step-by-step explanation:

Substitute:

The equation for area of a semi-circle is $\frac{r^{2}\pi }{2}$

A = $\frac{r^{2}\pi }{2}$

76.97 = $\frac{r^{2}\pi }{2}$

Multiply by 2 on both sides:

2(76.97) = ( $\frac{r^{2}\pi }{2}$ )2

153.94 = $r^{2} \pi$

Divide by pi on both sides:

153.94 = $r^{2} \pi$

/pi /pi

49.03 ≈ $r^{2}$

Find the square root:

$\sqrt{49.03} =\sqrt{r^{2} }$

7 = r

7 0

2 years ago

A triangle shaped paper’s height is 18 cm and width is 10 cm. Find the hypotenuse of the paper.

vodomira [7]

The hypotenuse is 20.59. 10^2+18^2=C^2

7 0

2 years ago