3 years ago

Lee has a jar of 100 pennies. She adds groups of 10 pennies to the jar. She adds 5 groups. What numbers does she say?

Mathematics

1 answer:

Alenkinab [10]3 years ago

4 0

150 pennies in the jar .

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F(x) = -x² - 7x - 5<br>Find f(-5)

irga5000 [103]

Answer:

Step-by-step explanation:

f(-5)=-(-5)^2 - 7(-5) - 5

f(-5)= -25 +35 - 5

f(-5) = -25 +30

f(-5) = 5

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2 years ago

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the ratio of 7th graders to 8th grader at a school dance is 3 to 2. there are 54 7th graders at a dance. how many 8th graders ar

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3 years ago

Mei Mei invested $1700 in an account that pays 3% interest compounded annually.

algol [13]

Answer:

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Step-by-step explanation:

Use compound interest formula:

$A = P(1 + \frac{r}{n})^{nt}$

P = 1700, r = 0.03, n = 1, t = 16

Plug in numbers:

$A = 1700(1 + \frac{0.03}{1})^{(1)(16)}$

Simplify:

$A = 1700(1.3)^{16$

Use calculator:

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2 years ago

Prove that if b is a square matrix then b+b^t is symmetric

WARRIOR [948]

A matrix $\mathbf X$ is symmetric if $\mathbf X=\mathbf X^\top$ . We have

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and so $\mathbf B+\mathbf B^\top$ is indeed symmetric.

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3 years ago

A 10-inch television has a screen that is 6 inches high. How wide is the screen?

soldier1979 [14.2K]

The television is 60in

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