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zhenek [66]
3 years ago
14

What is the sum of -19 and — 76?

Mathematics
2 answers:
Goryan [66]3 years ago
4 0
The sum of -19 and -76 is -95
vlada-n [284]3 years ago
4 0

Answer:

-95

Step-by-step explanation:

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Can someone help on this? Please :)
Aleks04 [339]

answer:

N(t)=2×1.7^{t}

17

15

step by step explain:

before lesson (t=0), she knows 2 words.

after a week (t=1), she knows

2×(1+70%)=3.4 words

after one more week (t=2), she knows

3.4×(1+70%)=5.78 words

one more week later (t=3), she knows

5.78×(1+70%)=9.826 words

and so on ...

from pattern shown above, we know that she knows

2×1.7^{t} words after t weeks

so N(t)=2×1.7^{t}

after 4 weeks (t=4), she knows 2×1.7^{4}=16.7042≈17 words

for learning 5000 words, she need:

2×1.7^{t}=5000

   1.7^{t}=2500

t log(1.7)=log(2500)

         t=\frac{log(2500)}{log(1.7)}

          =14.7448727

          ≈15 (round up)

6 0
3 years ago
Read 2 more answers
What is the slope of the following graphs?
Lynna [10]

Answer:

B; 3/4

Step-by-step explanation:

slope = rise / run

the line goes up, so it is a positive slope. it goes up 3 points, and goes right 4 points.

6 0
3 years ago
Read 2 more answers
Solve the literal equation q= 4b=5b-3a for a show work
lozanna [386]

4b = 5b - 3a # Starting equation, solve for 'a'

-b = -3a # Subtract 5b from both sides

\frac{b}{3}  = a # Divide both sides by -3.

a = \frac{b}{3} # Use the reflexive property of equality

Hope this answers your question!

4 0
3 years ago
Read 2 more answers
Find the polar coordinates of the point. Then, express the angle in degrees and again in radians, using the smallest possible po
nika2105 [10]

Answer:

(4cos150, 4sin150) or (4cos5pi/6, 4sin5pi/6)

Step-by-step explanation:

Given the rectangular coordinate

(2√3,-2)

x = 2√3

y = 2

For polar coordinate;

x =r cos theta

y = rsin theta

r = √x²+y²

r = √(2√3)²+(-2)²

r = √4(3) + 4

r = √12+4

r = 4

theta = arctan(y/x)

theta = arctan(-2/2√3)

theta = arctan(-1/√3)

theta = -30

theta = 180 - 30

theta = 150degrees

x = 4cos 150

y = 4sin150

The polar coordinate is (4cos150, 4sin150) or (4cos5pi/6, 4sin5pi/6)

The polar coordinates of the point are

4 0
3 years ago
<img src="https://tex.z-dn.net/?f=1%5C%5C2%20times4%3D" id="TexFormula1" title="1\\2 times4=" alt="1\\2 times4=" align="absmiddl
kirill [66]

Answer:

2

Step-by-step explanation:

1/2 * 4

=4/2

= 2

8 0
3 years ago
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