THESE ARE THE QUESTIONS WILL MARK BRAINLIEST 99 POINTS

Mathematics

2 answers:

telo118 [61]3 years ago

7 0

Answer:

Step-by-step explanation:

Arisa [49]3 years ago

4 0

1. You are given PR and RS, so simply add the two measurements to get PS.

28.2+30.7= 58.9

2. Subtract QV from QT to get TV.

78-56= 22

3. Again, Subtract QV from QT to get TV.

74-36= 38

4. Similar to question 1, add PR and RS to get PS.

40+53= 93

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I don't get part B, could u help me explain?

Nikolay [14]

It represents the rate she is texting per second

7 0

3 years ago

Write the expression-3x2+2y2+5xy-2y+5x2-3y2 in simplest form A how many terms are in the simplified expression? B how many terms

natima [27]

Answer:

Step-by-step explanation:

= x²(-3 +5) +y²(2 -3) +5xy -2y

= 2x² -y² +5xy -2y

a) there are 4 terms in the simplified expression

b) 2 terms have negative coefficients (-y² and -2y)

5 0

3 years ago

Express the given quantity as a single logarithm. ln x + a ln y − b ln z

professor190 [17]

The rules of logarithms tell you ...
• $\ln(a)+\ln(b)=\ln(a \cdot b)$
• $a \cdot \ln(b)=\ln(b^{a})$

$\ln(x)+a \cdot \ln(y)-b \cdot \ln(z)=\ln\left( \dfrac{x \cdot y^{a}}{z^{b}} \right)$

6 0

2 years ago

Bethany, Lauren, Amanda, and David all meet at a family reunion. They are comparing their ages. They have found that Lauren is 1

tekilochka [14]

Lauren =l
David=d
Bethany's =x
Amanda =y
l=x+13
d=y+11
lx=2y
(x+13)x=2y
 $2y=x^2+13x$
$y= \frac{1}{2}(x^2+13x)$
or
$y= \frac{x^2}{2}+ \frac{13}{2}x$
(x-20)(l-20)=d
(x-20)(x+13-20)=y+11 
 $y+11=(x-20)(x-7)$
$y+11=x^2-27x+140$
$y=x^2-27x+129$
so I believe its b
Hope this helps :)

6 0

2 years ago

Read 2 more answers

Write the equation for the hyperbola with foci (–12, 6), (6, 6) and vertices (–10, 6), (4, 6).

fomenos

Answer:

$\frac{(x--3)^2}{49} -\frac{(y-6)^2}{32}=1$