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3 years ago

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.

Geometric Sequence / Ratio Formula

$\displaystyle \large{r = \frac{a_{n + 1}}{a_n} }$

Define 'r' as common ratio.

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

Ratio Check

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

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

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

General Term of Geometric

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

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