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3 years ago

Jacob is painting wooden blocks. He

Mathematics

2 answers:

Talja [164]3 years ago

5 0

Answer:

,n n,

Step-by-step explanation:

inysia [295]3 years ago

3 0

Answer:

hope this helps A: 78%

Step-by-step explanation:

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What is 55+50. what will be the answer

Masja [62]

Answer:

55 + 50 is 105

4 0

3 years ago

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three apples weigh about a pound. about how much would one apple cost ? (round to the nearest cent) (apples are $0.50 per pound)

BARSIC [14]

Answer:

$0.17

Step-by-step explanation:

If apples are $0.50 per pound and there are 3 apples in a pound, you can do $0.50 divided by 3 to find the cost per apple.

0.5 / 3 = 0.16666 which rounds to $0.17

4 0

3 years ago

Anil weighed 95 kg. He went running every day and began to lose mass. After one month his mass was 74 kg. What was the percentag

Phoenix [80]

Percentage decrease formula =
difference / original x 100%

95-74=21
21/95 x 100% = 22.1052632 ≈ 22.1 ( 3sf )

hope my answer helps

7 0

3 years ago

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Danielle earns $36.80 for 4 hours of yardwork. MacKenzie earns $50.40 for 6 hours of yardwork. Who earns more money per hour? HI

Elden [556K]

Answer:

Danielle earns more in 1 hours and $0.80 more than MacKenzie

Step-by-step explanation:

Given : Danielle earns $36.80 for 4 hours of yardwork. MacKenzie earns $50.40 for 6 hours of yardwork.

To find : Who earns more money per hour? How much more

Solution : We have given

Danielle earns in 4 hours = $36.80 .

Danielle earns in 1 hours = .

Danielle earns in 1 hours = $9.20 .

MacKenzie earns in 6 hours = $50.40

MacKenzie earns in 1 hours = .

MacKenzie earns in 1 hours = $8.40.

We can see Danielle earns more in 1 hours .

How much = $9.20 - $8.40.

= $0.80.

Therefore, Danielle earns more in 1 hours and $0.80 more than MacKenzie

Step-by-step explanation:

7 0

3 years ago

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Help! How would I solve this trig identity?

NeTakaya

Using simpler trigonometric identities, the given identity was proven below.

<h3>How to solve the trigonometric identity?</h3>

Remember that:

$sec(x) = \frac{1}{cos(x)} \\\\tan(x) = \frac{sin(x)}{cos(x)}$

Then the identity can be rewritten as:

$sec^4(x) - sen^2(x) = tan^4(x) + tan^2(x)\\\\\frac{1}{cos^4(x)} - \frac{1}{cos^2(x)} = \frac{sin^4(x)}{cos^4(x)} + \frac{sin^2(x)}{cos^2(x)} \\\\$

Now we can multiply both sides by cos⁴(x) to get:

$\frac{1}{cos^4(x)} - \frac{1}{cos^2(x)} = \frac{sin^4(x)}{cos^4(x)} + \frac{sin^2(x)}{cos^2(x)} \\\\\\\\cos^4(x)*(\frac{1}{cos^4(x)} - \frac{1}{cos^2(x)}) = cos^4(x)*( \frac{sin^4(x)}{cos^4(x)} + \frac{sin^2(x)}{cos^2(x)})\\\\1 - cos^2(x) = sin^4(x) + cos^2(x)*sin^2(x)\\\\1 - cos^2(x) = sin^2(x)*sin^2(x) + cos^2(x)*sin^2(x)$

Now we can use the identity:

sin²(x) + cos²(x) = 1

$1 - cos^2(x) = sin^2(x)*(sin^2(x) + cos^2(x)) = sin^2(x)\\\\1 = sin^2(x) + cos^2(x) = 1$

Thus, the identity was proven.

If you want to learn more about trigonometric identities:

brainly.com/question/7331447

#SPJ1

7 0

1 year ago