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2 years ago

Which of these statements is true for

Mathematics

1 answer:

maw [93]2 years ago

6 0

Answer: D. the y-intercept is (0,1)

Step-by-step explanation:

For all exponential functions without a vertical shift, the y-intercept is (0,1).

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There are 80 students in a speech contest. Yesterday 1/4 of them gave their speeches. Today 2/5 of the remaining students gave t

beks73 [17]

So 80 total
1/4 gave speeches or 20 gave speeches
80-20=60
today 2/5 of 60 gave speeches

2/5 of 5=60 is the same as
2/5 times 60=120/5=24 who gave speeches

60-24=36

36 haven't give their speeches

3 0

3 years ago

Priya spent 1/2 of the day hiking. she was lost 5/6 of the time that she was hiking.

Lera25 [3.4K]

You will have to get 5/6 of 1/2 so we have to multiply
$\frac{5}{6} \times \frac{1}{2} = \frac{5}{12}$
Priya was lost for 5/12 of the day

8 0

3 years ago

Work out the simultaneous equation for 3x+ 4 = 40<br> 9x– 7y = -13

butalik [34]

Answer:

Step-by-step explanation:

symmmmmmmmmmm

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3 years ago

Gragh the image of the figure after a dilation with a scale factor of 1/4 centered at (5, -5) please help

svetoff [14.1K]

Answer:

See attached diagram

Step-by-step explanation:

Triangle ABC has vertices A(9,3), B(-7,-5) and C(-3,7).

The dilation with a scale factor of 1/4 centered at (5, -5) has the rule

$(x,y)\rightarrow \left(\dfrac{1}{4}x+\dfrac{15}{4},\dfrac{1}{4}y-\dfrac{15}{4}\right)$

Then

$A(9,3)\rightarrow A'\left(\dfrac{1}{4}\cdot 9+\dfrac{15}{4},\dfrac{1}{4}\cdot 3-\dfrac{15}{4}\right)=A'(6,-3);$

$B(-7,-5)\rightarrow B'\left(\dfrac{1}{4}\cdot (-7)+\dfrac{15}{4},\dfrac{1}{4}\cdot (-5)-\dfrac{15}{4}\right)=B'(2,-5);$

$C(-3,7)\rightarrow C'\left(\dfrac{1}{4}\cdot (-3)+\dfrac{15}{4},\dfrac{1}{4}\cdot 7-\dfrac{15}{4}\right)=C'(3,-2).$

6 0

3 years ago

What is the domain of the function ya v?<br> O 0 O 0 O 1

umka21 [38]

Answer:

Step-by-step explanation:

X can't be negative cause it wouldn't make sense

8 0

3 years ago