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Ne4ueva [31]
3 years ago
8

I need help please!!

Mathematics
1 answer:
Sergio039 [100]3 years ago
5 0

Answer:

16 cm2

Step-by-step explanation:

By equa tion of area of triangle: S = 1/2 * height * base

Triangle B: 32  = 1/2 * 8 * x --> x = 8 (cm)

The base of triangle A is half of the base of triangle B so it is 4 cm.

The area of triangle A = 1/2 * 8 * 4 = 16 (cm2)

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A bacterium cell splits into 2 cells every hour. Write and evaluate an exponential expression to find how many cells there will
timurjin [86]

Answer:

2^x

64 bacterium

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Step-by-step explanation:

doubles every hour

if x = hours

2^x

2^x --> 2⁶ = 64

2^x = 1024

1024 = 2^10 ---> x=10

7 0
3 years ago
You can jog around your block twice and the park once in 10 minutes. You can jog around your block twice and the park 3 times in
exis [7]
2x + y = 10
2x + 3y = 22

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4 0
3 years ago
Together a chair, a table, and a lamp cost $572. The chair costs 4 times as much as the lamp, and the table costs $23 less than
Jet001 [13]
Chair=4x
lamp=x
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6 0
3 years ago
Read 2 more answers
A store buys 7 sweaters for $42 and sells them for $182. How much profit does the store make per sweater?
defon

Answer:

$20 per sweater.

Step-by-step explanation:

It is given that,

A store buys 7 sweaters for $42 and sells them for $182.

We need to find how much profit the store make per sweater.

The amount the store bought the sweaters fr is calculated as follows :

$182- $42 = $140

Profit the store made per sweater is given by :

\dfrac{140}{7}=20

Hence, the store will make $20 per sweater.

5 0
3 years ago
Let f(x)=2x^2+7x-5 and g(x)=-8x^2-3x+5 what is g(x)+f(x)
ser-zykov [4K]
F(x) = 2x² + 7x - 5
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Answer: -6x² + 4x
4 0
3 years ago
Read 2 more answers
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