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3 years ago

Is 52+(-2.5) negative.

Mathematics

1 answer:

Alex777 [14]3 years ago

3 0

Answer:

No, it is positive.

Step-by-step explanation:

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Can y’all help me on question 39?!

erastova [34]

There ain’t no answer choices ?

3 0

3 years ago

Number 7 and 8 plz answer quickly

Flauer [41]

(7) m∠A = 52°

(8) m∠B = 117°

Solution:

(7) Let us first define the supplementary and complementary angles.

Supplementary angles: Two angles are said to be supplementary angles if their sum is add up to 180°

Complementary angles: Two angles are said to be complementary angles if their sum is add up to 90°

Given supplement of 142° = 180° – 142°

= 38°

Complement of ∠A = Supplement of 142°

⇒ Complement of ∠A = 38°

Measure of ∠A = 90° – 38°

= 52°

Hence m∠A = 52°.

(8) Given complement of 27° = 90° – 27°

= 63°

Supplement of ∠B = Complement of 27°

⇒ Supplement of ∠B = 63°

Measure of ∠B = 180° – 63°

= 117°

Hence m∠B = 117°.

3 0

4 years ago

7. $6,000 is invested in an account that earns 4.5% annual interest, compounded quarterly. What is the

Dafna11 [192]

Answer:

The value of account after 8 years is $8580

Step-by-step explanation:

Given in question as :

The principal that invested in an account = $6,000

The annual interest rate compounded quarterly = 4.5%

Time period = 8 years

Now from compound Interest method for quarterly .

Amount = Principal $( 1 + \frac{Rate}{4 \times 100})^{4 \times Time}$

Or,Amount = $6,000 $( 1 + \frac{4.5}{4 \times 100})^{4 \times 8}$

Or, Amount = $6,000 (1.430)

∴ Amount = $8580

Hence the value of account after 8 years is $8580 Answer

5 0

4 years ago

What is the inverse of function f? F(X) = square root of x +7

katrin2010 [14]

Answer: $f^{-1} (x)=x^{2} -7$

Step-by-step explanation:

To find the inverse of a function replace f(x) with x and the original x with y

$f(x)=\sqrt{x+7} \\x=\sqrt{y+7}$

Now we can solve for y

Square both sides so we can cancel out the root

$x=\sqrt{y+7}\\x^{2} =\sqrt{y+7}^{2} \\x^{2} =y+7$

Now subtract 7 from both sides

$x^{2} =y+7\\x^{2} -7=y+7-7\\x^{2} -7=y$

Now replace y with the inverse of f(x), $f^{-1} (x)$

6 0

3 years ago

Read 2 more answers

A cat gave birth to 3 kittens who each had a different mass between 147 and 159g. Then, the cat gave birth to a 4th kitten with

dangina [55]

Answer:

It will lower the mean significantly because it is an outlier compared to the other kittens weights.

Step-by-step explanation:

7 0

3 years ago