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Reptile [31]
3 years ago
6

PLEASE HELP. NO LINKS. NEED REAL EXPLANATION.

Mathematics
1 answer:
inna [77]3 years ago
5 0

Answer:

Step-by-step explanation:

This is very easy watch

x^2-16x+ __

what do we do to find the blank?

We divide 16 by 2 to get 8

then we take the square of 8

which is 64

so this would be  x^2-16x+ 64 = 64

REMEMBER 64 goes to BOTH sides of equation

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What value of X would assure parallelogram ABCD is a rhombus give an angle BRC=7X +6
leva [86]

Answer:

Cheater.

Step-by-step explanation:

this is your math teacher. I am very disappointed, never go on this website again.

4 0
3 years ago
Janell ran a race 11.4 seconds faster than Hilda. Hilda ran the race 7.2 seconds slower than Gracie. If the average (mean) of th
yulyashka [42]

Answer:

X= Gracie

X+7.2=Hilda

X+7.2-11.4=Janell

(X+X+X+7.2+7.2-11.4)÷3=62.6

(3x+3)÷3=62.6

3X+3=187.8 (I arrive at 187.8 because I multiple 62.6 by 3)

3X=187.8-3

3X=184.8

3X/3=184.8/3

X=61.6

Step-by-step explanation:

GRACIE X=61.6

Hilda X+7.2=61.6+7.2=68.8

Janell X+7.2-11.4=61.6+7.2-11.4= 57.4

6 0
4 years ago
Plz solve 20 points plz solve plz solve
Monica [59]

Answer:

55 square meters

Step-by-step explanation:

I used an online calculator and that's what i got

5 0
3 years ago
Read 2 more answers
What is the product? (5+2)(3r-4)
lilavasa [31]
7(3r - 4)= 21r - 28 the answer to the question
5 0
3 years ago
PLZ EXPLAIN AND I'LL GIVE BRAINLY!!!!
Nonamiya [84]

Hello there!

Given the sequence:

\displaystyle \large{ 1, - 3,9, - 27,...}

The question reveals it to be geometric sequence since it has common ratio.

<u>G</u><u>e</u><u>o</u><u>m</u><u>e</u><u>t</u><u>r</u><u>i</u><u>c</u><u> </u><u>S</u><u>e</u><u>q</u><u>u</u><u>e</u><u>n</u><u>c</u><u>e</u> / <u>R</u><u>a</u><u>t</u><u>i</u><u>o</u><u> </u><u>F</u><u>o</u><u>r</u><u>m</u><u>u</u><u>l</u><u>a</u>

<u>\displaystyle \large{r =  \frac{a_{n + 1}}{a_n} }</u>

Define 'r' as common ratio.

First, let's check the common ratio by using the formula above.

<u>R</u><u>a</u><u>t</u><u>i</u><u>o</u><u> </u><u>C</u><u>h</u><u>e</u><u>c</u><u>k</u>

\displaystyle \large{r =  \frac{ - 3}{1} \longrightarrow  - 3 } \\  \displaystyle \large{r =  \frac{ 9}{ - 3} \longrightarrow  - 3 } \\  \displaystyle \large{r =  \frac{ - 27}{9} \longrightarrow  - 3 }

Therefore, the common ratio or r-value is -3.

To find the 7th term of sequence, you can by using the General Geometric Terms.

<u>G</u><u>e</u><u>n</u><u>e</u><u>r</u><u>a</u><u>l</u><u> </u><u>T</u><u>e</u><u>r</u><u>m</u><u> </u><u>o</u><u>f</u><u> </u><u>G</u><u>e</u><u>o</u><u>m</u><u>e</u><u>t</u><u>r</u><u>i</u><u>c</u>

\displaystyle \large{a_n = a_1 {r}^{n - 1} }

a1 is defined as the first term of sequence.

r is common ratio.

n is the term.

Since we want to find 7th term:

  • a1 = 1
  • r = -3
  • n = 7

\displaystyle \large{a_7 =1{( - 3)}^{7 - 1} } \\  \displaystyle \large{a_7 =1{( - 3)}^{6} } \\  \displaystyle \large{a_7 =729 }

Therefore, the 7th term of this sequence is 729.

Let me know if you have any questions!

Topic: Sequence and Series / Geometric Sequence

7 0
3 years ago
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