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Stolb23 [73]
3 years ago
12

Please helphelp

Mathematics
1 answer:
Rina8888 [55]3 years ago
4 0
The answer would be A.
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HELP URGENT I WILL GIVE 20 POINTS
Lunna [17]

h = 9.2 cm

Solution:

Base of smaller triangle = 5 cm

Height of smaller triangle = 2.3 cm

Base of larger triangle = 15 cm + 5 cm = 20 cm

Height of larger triangle = h

$\frac{2.3}{5}=\frac{h}{15+5}

$\frac{2.3}{5}=\frac{h}{20}

Multiply by 20 on both sides.

$20 \times \frac{2.3}{5}=\frac{h}{20} \times 20

$\frac{46}{5}=h

9.2 = h

So that Ryan should have add 15 and 5 to get a denominator of 20 on the right sides of the first line. Doing so gives the correct value, h = 9.2 cm.

8 0
3 years ago
Multiply (-3a + 4b) by 5a.​
Tasya [4]

Answer:

-15a^2+20ab

Step-by-step explanation:

Given data

We are given the expression

(-3a + 4b) to be multiplied by 5a

hence we have

(-3a + 4b)*5a

open bracket

-15a^2+20ab

Hence the answer is

-15a^2+20ab

7 0
3 years ago
11.) Evaluate the integral
bezimeni [28]

You can start with the indefinite integral

... ∫e^(ax)·dx = (1/a)e^(ax) +c


Then your definite integral is

\int\limits_{-3}^{10}{e^{-0.025x}}\,dx=\dfrac{-1}{.025}\left(e^{-0.025\cdot 10}-e^{-0.025\cdot(-3)}\right)\\\\=40\left(e^{.075}-e^{-0.25}\right)\\\\ \approx11.9633

3 0
3 years ago
Read 2 more answers
James is shopping for hiking boots for a trip he will take in 3-months. He has $150 saved and is saving $20/week. The boots he w
Salsk061 [2.6K]

Answer:

Use his savings to buy the shoes now and put the amount he is short on a credit card.

Step-by-step explanation:

Due to the discount on sale, then it is advisable James buys with his savings and put the balance amount on his credit card. By virtue if the discount, James will be able to save ;

(0.2* $240) = $48. This discount will be a good bargain and will be unavailable by the time his savings can buy in full. However, since James has a repayment channel (his $20/week) saving, then he can put the amount left to balance in his credit card and sort his credit balance later.

5 0
3 years ago
Can you guys walk me through the teo questions ASAP
erma4kov [3.2K]
16. C. 0 means it is at sea level. The question is asking about the elevation of each of the places. 1.3 means the elevation is 1.3 km. If I am wrong than the only other possibility is A.

17. C.Our total will come in the beginning : e = . 40,000 is your base salary so he will get 40,000 no matter what. He also gets $200 per car and per is multiplying so 200 • c. That will be added to our base salary and our equation will be : e = 40,000 + 200 • c.
Hoped I helped!
4 0
3 years ago
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