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2 years ago

Help w number 8, will mark brainliest !!!

Mathematics

1 answer:

eimsori [14]2 years ago

3 0

Answer:

Step-by-step explanation:

because both the measurement and the congruent side are opposite in sentence

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If x square plus 8x plus q =(x plus k) Square find the value of k and q

PIT_PIT [208]

Answer:

The value of k is 4 and q is 16.

Step-by-step explanation:

First, you have to expand the brackets by applying :

${(a + b)}^{2} = {a}^{2} + 2ab + {b}^{2}$

${x}^{2} + 8x + q = {(x + k)}^{2}$

${x}^{2} + 8x + q = {x}^{2} + 2kx + {k}^{2}$

Next, you have to do it by comparison :

${x}^{2} + 8x + q = {x}^{2} + 2kx + {k}^{2}$

$by \: comparison$

$8x = 2kx$

$8 = 2k$

$k = 4$

$q = {k}^{2}$

$q = {4}^{2}$

$q = 16$

7 0

3 years ago

Tereka and Emma each deposit money in savings accounts. The amount of money, in dollars, in Tereka’s account after x years is mo

Over [174]

Given:

Amount of money in Tereka’s account : $T(x)=472(1.04)^x$

Amount of money in Emma’s account : $E(x)=485(1.09)^x$

To find:

The difference between initial amounts Tereka and Emma deposit.

Solution:

Substitute x=0 in the given functions, to get the initial amount of money they deposit.

$T(0)=472(1.04)^0$

$T(0)=472(1)$

$T(0)=472$

So, the initial amount Tereka deposit is $472.

$E(0)=485(1.09)^0$

$E(0)=485(1)$

$E(0)=485$

So, the initial amount Emma deposit is $485.

Difference between the initial amounts Tereka and Emma deposit is

$485-472=13$

Therefore, the difference between initial amounts Tereka and Emma deposit is $13. Emma deposit $13 more than Tereka.

6 0

2 years ago

The equation for the volume of a cylinder is v=πr²h the positive value of r, in terms of h and V, is

leva [86]

((square root of -->>(VOLUME)/(PIE)X(HEIGHT)) should equal (r).

3 0

2 years ago

A hardware store sells light bulbs in different quantities. the graph shows the cost of various quantities. according to the gra

geniusboy [140]

step 1

find the equation of the line

where

x-------> numbers of light bulbs

y-------> the total cost in $

let

A (0,0) B (10,18)

slope m=18/10-----> m=1.8

step 2

with m=1.8 and the point A (0,0)

y-y1=m*(x-x1)------> y=1.8x

step 3

for x=1

y=1.8*1------> y=$1.8

therefore

the answer is

the cost of a single light bulb is $1.8

4 0

3 years ago

What is the distance in y axis between each step in the graph of this function. y=int(3x)

MrRa [10]

Anyway the distance is 1.
I give you the graphic of this function

5 0

3 years ago